Technical Field of the Invention The technical field of the invention is the ionic extraction of salts, especially salts of hydrophilic, applied for the treatment of industrial or natural saline waters. BACKGROUND The mining, oil and industrial activities may generate wastewater highly saline, very entartrantes and / or contaminated by toxic metals that require treatment before release into the environment, even before recycling in an industrial process. In either of these cases, manufacturers now have only very expensive solutions and little or not adapted to their specific environment. There are also cases, especially for saline water entartrantes very rich in alkaline earth metal cations and / or integrating trace metals, where it does not exist today sustainable processing technology and / or economic these waters forcing the storage of these waters in settling ponds pending a solution. In the case of water mixtures from different sources or very entartrantes it is common that there scaling of equipment by precipitation of low solubility in water salts such as certain carbonates salts (MgC0 3 , CaC0 3 , SrC0 3 , BaC0 3 , CdC0 3 , CoC0 3 , MnC0 3 , PbC0 3 , nic0 3 , fec0 3 , ZnC0 3 ..), sulfates salts (CaS0 4 , SrS0 4 , BaS0 4 , PbS0 4 ...) of fluoride salts (MgF 2 , CaF 2 , SrF 2 , BaF 2 , CdF 2 , FeF 2 , PbF 2 ...), the metal hydroxide salt (Mg (OH) 2 , Ca (OH) 2 , Cd ( OH) 2 , Co (OH) 2 , Fe (OH) 2 , Ni (OH) 2 , Zn (OH) 2 ...), and many others which may be present in large quantities. Also, if the technology is associated with a thermal vaporization of the water, the use temperature, usually above 80 ° C is then generating a lower threshold precipitation of certain salts (e.g., carbonate salts such as CaC0 3 by evaporation of carbon dioxide) and the inverted solubility salts (such as CaS0 4 ), which may limit the more the maximum extraction water level of salt water or generate a volume of solid waste management even more abundant. To extract an ion or salt present in dissolved form in a natural or industrial water, the common approach is to use the chemical route, for example by ensuring the precipitation thereof by adding a reagent, such as a base (NaOH ...), for precipitating metal hydroxides, are not soluble in water. This channel is non-selective vis-à-vis the precipitated metals and corresponds to an exchange of cations (Na + against metal here) or anions and generates other drawbacks such as the addition of new contaminants to be treated downstream and a drop in efficiency with a decrease in concentration of the target compounds. Another route by solvent extraction, known hydrometallurgical can also be implemented when it comes to capturing nickel type metal, Cobalt ... in higher concentrations via an exchange of cations M n 7nH + . These methods employ cationic extractants dissolved in a solvent, employing an acid-base chemistry or extraction and solvent regeneration are at pH values which differ by several orders of magnitude. This route is consuming bases (NaOH ...) and acid (H 2 S0 4 ...) expensive, resulting in the addition of new contaminants associated with the coproduction of salts (Na 2 S0 4 ... ) to manage downstream. Another also implemented for over 50 years track is to employ selective electrodialysis membranes, ie permeable cation or anion and not permeable to water and neutral molecules in general. In this case, the electrical energy consumed is proportional to the salt moved which limits its use to applications with high added value in the case of treatment of brines. This technology is non-selective vis-à-vis ions of the same charge and therefore is non-selective vis-à-vis metals or anions to be extracted, while being at risk side membrane fouling. Other routes exist, such as ion exchange or selectivity is dependent on the ion charge, limited by the concentration of the ion treated, and there also generating an influx of new contaminants from the chemical regeneration of the resins. More recently the applicant has disclosed in the application WO2010 / 086575 the use of fluorinated compounds in a direct contact heat exchanger comprising a liquid and hydrophobic fluorinated phase associated with ion exchangers. However, the fluorinated liquid organic phase described in this application describes the use of ionic organofluorine compounds and nonionic associated with a process little suited to high water desalination rate obtaining or selective desalination salts and in particular a descaling due to inadequate regeneration procedure. Patent Application US2008 / 179568A1 discloses a liquid-liquid extraction process cesium and strontium at low concentration using two types of cationic extractants molecules, family crown ethers and average concentration of the calixarenes in very low concentration (0.0025 to 0.025 mol / L) and at least one modifier dissolved in an isoparaffinic hydrocarbon as a diluent C12-C15. The modifier may be an alcohol, trioctylamine (TOA), tri-n-butyl phosphate (TBP) or mixtures thereof. This compound is designed to enhance the capabilities of the cationic extractant and / or its ability to remain dissolved during its implementation. Patent application US2008 / 0014133 discloses a liquid-liquid extraction method Cesium and Strontium in low concentration by making use of cationic extractants family molecules of crown ethers in low concentrations (from 0.04 to 0.095 mol / L), combined with a fluorinated alcohol (called Fluoroheptanol n 3 ) in proportion ( > 80% volume) and a glycol ether. Patent US6566561 B1 discloses a liquid-liquid extraction process cesium in low concentrations by the use of solvating agents and stable fluoro-phenoxy alcohol type phase modifiers in basic medium, in the presence of cationic extractants molecules the family of calixarenes crown ethers in low concentrations (0.001 to 0.20 mol / L, 0.01 Mol / L preferred). A very extensive bibliography exists in this area in which we can cite Article TG Levitskaia, -and al. Anal. Chem. 2003, 75, 405-412 which demonstrates that it is possible to extract the sodium hydroxide (NaOH) of an aqueous solution by use of a neutral extractant sodium, crown ether type with low lipophilic acid de-protonated to allow the formation of a hydrophobic sodium alkoxide. [DC18C6](org) + [RCOH](org) + [Na+](aq) + [OH-](aq) <→ [RCO"Na+DC18C6](org) + H20(aq) This document also shows examples of the extraction of NaF, NaCl, NaBr, NaN0 3 and NaCI0 4 , 1M salinity by combining DC18C6 0.02M without and with seven weak acids (from the family of alcohols ) present up to 0.04M, all dissolved in nitrobenzene. Two of these alcohols are fluorinated aromatic alcohols having a pKa of about 8.8. The salt extraction rate for hydrophobic ions such as picrate, is relatively high. However, for hydrophilic anions, such as the chloride ion CI " , the recalculated salts extractions rates are between 0.06% and 0.16%, which confirms the great difficulty of extracting the hydrophilic NaCl of water and little influence alcohols, at this concentration on the performance of extraction. It therefore appears that the industry is now waiting for a brine processing solution, polluted or not by metals, which is effective for the extraction of salt over a wide range of salinity and much less costly to investment and implementation. It is also often expected to be able to separate combinations of entartrants ions to remove or reduce the presence of specific salts and especially those responsible for a scaling of equipment by the water and / or enhance a part of inorganic compounds present in such waters to fund all or part of this treatment. The object of this patent application is therefore to describe a new processing technology of salt water and water contaminated by metals, to respond to these problems in its ability to extract water, selectively or massive, salts more or less high economic value for the treatment of industrial or natural saline waters. This technology can be widely applied to allow the discharge of such water in the environment while respecting the ecosystem for their valuation as process as water, to provide new or additional economic value in the context of a mining , oil and recycling salts and / or metal cations with high added value. This new technology also has the advantage of not generating new contaminants because the ions are extracted from the water in the form of electrically neutral body salt compounds which are then back-extracted from the extraction solvent through the implementation of a regeneration of active extractor thermal and non-chemical method. Description of the Invention To effect extraction of salts from an aqueous medium, the present application describes a method of deionizing water by liquid-liquid extraction using a thermal regeneration hydrophobic liquid organic phase comprising or consisting essentially of, or consists of, - at least one electrically neutral and hydrophobic organic compound capable of extracting (e.g., solvate, of complexing or chelating) a cation salts to be extracted from the aqueous phase, called MEC molecule extractant cation, - at least one second organic compound, and electrically neutral hydrophobic capable of solvating salts the anions to be extracted from the aqueous medium, called MSA molecule solvating Anion; and eventually, - a plasticizer, preferably hydrophobic. Surprisingly the combination of MSA and MEC according to the invention the synergistic extraction of neutral salts composed of cations and anions hydrophilic particularly difficult to transfer to an organic phase. By the term "hydrophobic" is meant a compound or a mixture of compounds whose solubility in water at 25 ° C, is at least less than 0, 1 Mol / liter. Preferably it is selected hydrophobic compounds whose solubility in water at 25 ° C is less than 0.01 mol / L, preferably less than 0.0001 mol / L and preferably less than 1x10 "5 Mol / L . the hydrophobicity or water solubility of a compound can be measured by standard methods and in particular by UV-visible spectrometry methods. GUY MEC a compound as described herein, mixtures thereof and uses in a method of extracting a cationic species of a water containing the species as a deionization process water by liquid-liquid extraction to thermal regeneration for the extraction of at least one divalent cationic species and at least one counter anion, are also part of the invention. The MEC which allows the extraction of at least a cation, may advantageously be selected from molecules having a good extraction capacity of alkaline earth ions, such as calcium ions, barium or strontium or other divalent cations as needed separation. The extraction is possible due to replacement of the solvation of cations and anions through the water by a solvation thereof by the extracting composition which then allows an interaction with CME and MSA. The nature of interactions covers such phenomena as ion-dipole interactions, accompanied by the establishment of hydrogen bonds and electrostatic interactions or van der Waals bonds. Preferably the ECM is a compound capable of complexing, and in particular of chelating cation. The "Chelate" differs from the simple "complex" in that the cation is attached to the chelating ligand by at least two links / interactions. CME to consider for the selective extraction of cations divalent vis-à-vis of monovalent alkali metal cations are macrocycles of the family metacyclophanes (MCP) which have a hydrophobic cavity described by n aromatic rings of phenol. The size of the macrocycle ranges from 24 to 32 carbon, in particular carbon. Preferably the size of the macrocycle is from 24 to 28 carbon atoms. These phenol type aromatic rings may be connected together in ortho position to the hydroxyl function, either directly or through methylene bridges at carbon 1 (-CH 2 -) or by bridges to two carbons (-CH 2 CH 2 -) or by bridges to 3 carbons (-CH 2 CH 2 CH 2 ) -. If only direct links are implemented, the common name of these macrocycles is spherand, type [0 n ]. If only methylene bridges to 1 carbon (CH 2 -) are implemented, the common name of these macrocycles is Calixarenes, type [1 n ]. If only bridges to 2 carbons (CH 2 CH 2 -) are implemented, the common name of these macrocycles is all-homocalixarène, type [2 n ]. The size of the bridges may also vary within a single macrocycle and vary from 0 to 3 carbon atoms. The classification determines the variety in naming such as [1.3.1 .3JMCP or [1.3] 2 MCP for an aromatic 4 to macrocycle connected successively ortho methylene bridge and by a bridge to 3 carbons and again by a methylene bridge and finally by a bridge to 3 carbons to complete the cycle. Macrocycles of interest are then functionalized by groups unhydrogenated amides for the selective extraction of the alkaline earth, without being also selective for the extraction of divalent transition metals. Thus a MEC for obtaining the selective extraction of non-alkali cations, especially divalent, vis-à-vis of alkaline cations, in particular monovalent, is a macrocycle, which ring is formed from 24 to 32 carbon atoms , functionalized with amide groups, and formula (I) or (II): or n is an integer ranging from 5 to 8, p is 1 or 2, m is 3 or 4, q and t, which are identical or different, are 0, 1 or 2, R is a tert-butyl group, tert-pentyl, tert-octyl, O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, O-pentyl, O-hexyl, O heptyl, octyl-O, OCH 2 phenyl, or a hydrogen atom, - R 'and R ", identical or different, are selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, hexyl, heptyl and octyl, or R' and R" together form a ring pyrrolidine, piperidine or morpholine. Thus for compounds of formula (I), the integers n and p should be chosen such that 24 <(3 + p) x n <32. For compounds of formulas (II) the integers m, q and t are to be chosen such 24 <(7 + q + t) xm <32. Such molecules belong to the family of metacyclophanes. Advantageously the MEC is a molecule of the formula: Ring 24 (from | g mgf j || e Ca | ix r6] has reins, type [1 6 ]), wherein R, R 'and R "are as previously defined for formulas (I) and (II). When R' and R" are both an ethyl group, the selective removal of divalent cations is especially strong, especially when the radical R is tert-butyl, OCH 2 P, H or O-methyl. Advantageously the MEC is a molecule of the formula: (Family IIA-homocalix [5] arenas, type [2 5 ]), R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: Ring 30 ( of \ a fami || e of AII-homocalix [6] arenes, type [2 6 ]), wherein R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: Cycle 28 (from the family of calix [7] arene, type [1 7 ]), R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: Ring 32 (of , starvation Ca lix [8] arenes, type [1 8 ]), wherein R, R 'and R "are as previously defined for formulas (I) and (II). When R' and R" are both an ethyl group, the selective removal of divalent cations is particularly interesting, especially when the radical R is tert-butyl, OCH 2 phenyl, H or O-methyl. Advantageously the MEC is a molecule of the formula: Cycle 27 (of type [2.1 .2.1.2.1] MCP egg [2.1] 3 MCP), wherein R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: Round 30 (of type [3.1 .3.1.3.1] MCP egg [3.1] 3 MCP), R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: (type [2.0.2.0.2.0] MCP or [2.0] 3 MCP), R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: (type [3.0.3.0.3.0] MCP or [3.0] 3 MCP), R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: (type [1.0.1.0.1 .0.1.0] MCP or [1 .0] 4 MCP), where R, R 'and R "are as previously defined for formulas (I) and (II). Advantageously the MEC is a molecule of the formula: (type [2.0.2.0.2.0.2.0] MCP or [2.0] 4 MCP), R, R 'and R "are as previously defined for formulas (I) and (II). In formulas (I) and (II): Particularly preferably the group R is tert-butyl. Particularly preferably the groups R 'and R "are both ethyl. Particularly preferably the group R is tert-butyl or hydrogen. Advantageously articulièrement of the MEC is the compound of formula: (the family of Calix [6] arenas, type [1 6 ], and CAS number: 111786-95-9). MEC2 this is particularly effective for the selective extraction of hydrophilic alkaline earth metal salts, particularly chloride salts, an aqueous solution when combined with at least one MSA and optionally a diluent in a method liquid-liquid extraction for thermal regeneration of the liquid resin according to the invention. Molecules belonging to the families of the formula (I) are already identified by a CAS number, particularly in the case of extracting molecules of the following cations: The composition according to the invention may also comprise more than one compound MEC for extracting at least one cation, the latter can advantageously be selected from the compounds described in the present application. Another object of the invention relates to the use of these compounds MEC for extraction of salts and / or ions from an aqueous medium. In particular these compounds may be used individually or in mixture, in a composition or in a method according to the invention as described in the present application. Another object of the invention relates to the use of compounds of MEC macrocycles type ring size between 16 and 22 carbon atoms, in particular carbon, and functionalized with amide groups, for the extraction of salt and in particular salt with hydrophilic anions such as chloride salts. Including these compounds, associated with MSA according to the invention allow the massive extraction of a solution containing a mixture of such salts, for example chloride salts comprising different cations having an ionic radius between 55 pm and 180 pm, preferably between 70 .mu.m and 167 .mu.m, especially from 75 pm to 167 pm. Such cations include cations of lithium, sodium, potassium, rubidium or cesium, which are monovalent or calcium, strontium or barium, which are divalent or transition metal cations. Note that magnesium, a divalent cation ionic radius of 72 pm is an exception and is not considered to be sufficiently removed to these MEC can be used industrially in a target sound extraction with water. These compounds are of the generic formula (III) and (IV): or n is 4 or 5, p is 1 or 2, m is 2 or 3, q and t, which are identical or different, are 0, 1 or 2, R is a tert-butyl group, tert-pentyl, tert-octyl, O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, O-pentyl, O-hexyl, O heptyl, octyl-O, OCH 2 phenyl, or a hydrogen atom, - R 'and R ", identical or different, are selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, hexyl, heptyl and octyl, or R 'and R "together form a pyrrolidine, piperidine or morpholine. Thus for compounds of formula (III), the integers n and p should be chosen such that 16 <(3 + p) x n <22. For compounds of formula (IV) entire m, q and t are to be chosen such that 16 <(7 + q + t) xm <22. Especially MEC1 macrocycle of formula III wherein n = 4, R = tert-butyl and R '= R "= ethyl and CAS No. 114155-16-7, in its cone configuration is particularly effective for extraction mass or aggregate of hydrophilic salts, especially salts of chloride, an aqueous solution when combined with the MSA least one and optionally a diluent in a method of liquid-liquid extraction for thermal regeneration of the liquid resin according to the invention. Molecules belonging to the families of formulas (III) and (IV) are also already identified by a CAS number, particularly in the case of the following MEC: For calixarenes, cone type ring configurations and even partial cone type are preferred with respect to the type of configurations 1, 2 alternately or 1, 3 alternately without these alternate configurations are excluded. Other metacyclophanes type cycles to 20 carbons are identified: N° CAS R Macrocycle t q m R' R" Configuration 353742-72-0 tert-Butyl MCP [1.3] 2 1 2 2 Ethyl Ethyl 1,4-alternating 352742-73-1 tert-Butyl MCP [1.3] 2 1 2 2 methyl methyl 1,4-alternating 353742-74-2 tert-Butyl MCP [1.3] 2 1 2 2 Butyl Butyl 1,4-alternating A preferred aspect of the invention is that the MEC of formula (III) or (IV) has a complexing constant log K, in methanol at 25 ° C, of ​​the cationic species to be extracted, of value greater than 3 and less than 11, preferably greater than 5 and less than 9. These amide MEC are particularly well suited to the method of liquid-liquid extraction by temperature difference according to the invention. Another object of the invention concerns the use of compounds MEC functionalized by ester or ketone groups for the selective removal of alkali metal cations, vis-à-vis the alkaline earth cations, without being selective for the extraction monovalent transition metals (Silver Ag + ). In particular these compounds may be used individually or in mixture, in a composition or in a method according to the invention as described in the present application. Another object of the invention relates to the use of compounds of MEC macrocycles type ring size between 16 and 24 carbon, in particular carbon, and functionalized ester or ketone groups, for the selective extraction of salts alkali and in particular alkali salts with hydrophilic anions such as chloride salts. Including these compounds, associated with MSA according to the invention allow selective extraction of one or more alkali salts of a solution containing a mixture of such salts, for example chloride salts comprising different cations having an ionic radius between 55 pm and 180 pm, preferably between 70 pm and 167 pm. Such cations include cations of lithium, sodium, potassium, rubidium and cesium which are monovalent or calcium, strontium, barium which are divalent or transition metal cations. These compounds are énérique formula (V) and (VI): (V) (VI) or n is 4, 5 or 6, p is 1 or 2, m is 2 or 3, q and t, which are identical or different, are 0, 1 or 2, R is a tert-butyl group, tert-pentyl, tert-octyl, or a hydrogen atom, - R 'is selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, hexyl, heptyl and octyl, to the realization of a group of ketone type binder or, R' is selected from the group consisting of O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, O-pentyl, O-hexyl and O-heptyl, octyl-O, OCH 2 Phenyl for producing an ester group type binder. Thus for compounds of formula (V), the integers n and p should be chosen such that 16 <(3 + p) x n <24. For compounds of formula (VI) the integers m, q and t are to be chosen such that 16≤ (7 + q + t) xm <24. Especially MEC10 macrocycle of formula (V) where n = 4, R = tert-butyl and R '= 0-ethyl CAS No. 97600-39-0 in its cone configuration is particularly effective for extraction selective sodium salts, especially as sodium chloride salt, an aqueous solution when combined with at least one MSA and optionally a diluent in a method of liquid-liquid extraction for regeneration heat of the liquid resin according to the invention. Especially MEC11 macrocycle of formula (V) where n = 5, R = tert-butyl and R '= 0-ethyl CAS No. 152495-34-6, and MEC12 of formula (V) where n = 6, R = tert-butyl and R "= 0-ethyl CAS No. 97600-45-8 in their cone configurations are particularly effective for the selective extraction of alkali metal salts vis-à-vis the salts of alkaline earth, in particular as alkali chloride salts, an aqueous solution when combined with at least one MSA and optionally a diluent in a method of liquid-liquid extraction for thermal regeneration of the liquid resin according to the invention. The MEC11 is adapted to extract the alkali metal chloride salts generally more (excluding lithium) while the MEC12 for a wider diameter ring 24 has a removal efficiency alkali rather large in diameter (cesium, rubidium or potassium). Molecules belonging to the families of formulas (V) and (VI) are also already identified by a CAS number, particularly in the case of the following MEC: Macrocycle n R' CAS P Configuration 97600-43-6 H Calixarène 1 4 O-Ethyle cône 144508-85-0 1 Calixarene H 4 O-lso-propyl cone 144508-84-9 1 Calixarene H 4 O-Tert-butyl cone 97600-39-0 tert-Butyl 1 Calixarene 4 O-Ethyl cone 160617-97-0 tert-Butyl 1 Calixarene 4 O-lso-propyl cone 94530-27-5 tert-Butyl 4 O Calixarene 1-Tert-butyl cone 149775-74-6 Tert-Octyle Calixarène 1 4 O-Ethyle cône 152495-34-6 tert-Butyl Calixarene 1 5 O-Ethyl cone 123311-70-6 tert-Butyl Calixarene April 1 Tert-butyl cone For calixarenes, cone type ring configurations and even partial cone type is preferred with respect to the type of configurations 1, 2 alternately or 1, 3 alternately, without being exclusive. According to a preferred embodiment, the composition does not include a MEC of formula (V) or (VI) for the extraction of calcium ions, that is to say that its complexing constant log K (Ca ++ ) in methanol at 25 ° C is greater than 3. a preferred aspect of the invention is that the MEC of formula (V) or (VI) has a complex formation constant log K, in methanol at 25 ° C, alkaline cationic species to be extracted, value of greater than 3 and less than 11, preferably greater than 5 and less than 9. Furthermore, in the case of selective MEC for extracting alkaline cationic species, it may have a value of Log K, in methanol at 25 ° C of less than 5, preferably less than 3 for the alkaline-earth cations, in particular for calcium. These MEC ester or ketone of formula (V) or (VI) are particularly well suited to the method of liquid-liquid extraction by temperature difference according to the invention. compound MSA MSA may be a compound containing from 6 to 50 carbon atoms, preferably from 7 to 30 carbon atoms, and especially from 8 to 20 carbon atoms, and including at least one aromatic ring and at least one halogen atom or an electron withdrawing group, in particular fluorinated. Advantageously, the MSA is a compound of formula B: wherein at least any one of R A , RB, RC, RD and R E , equal or different, is a halogen atom or an electron withdrawing group, in particular a halogenated group, the following group: - F, Cl, Br, - C m F 2m + i m <4, where m is a non-zero integer, - CF 2 CF 2 C p H 2p + i with p <4, where p is an integer, - CF 2 C p H 2p + 1 with p <4, where p is an integer, - CH 2 C p F 2 p + i with p <4, where p is an integer, - OCH 2 the CF 3 , - C(=0)CF3, - C m H n F p Cl q Br s m <4, where n, p, q, s are integers which at least p, q or s is not zero, - C (= 0) OC m H 2m + 1 with m <4, where m is an integer, and - C (= 0) C m H 2m + 1 with m <4, where m is an integer, or the radicals R A , RB, RC, RD and R E remaining (s) are chosen, which are identical or different, from the following non-electron-withdrawing radicals: - H, - CH The 3 , - CH The 2 CH The 3 , - CH 2 CH 2 C p F 2p + 1 with p <4, where p is an integer, - C m H 2m-1 with 3