Claims:1. A method to prepare pulp, said method comprises:
(a) obtaining lignocellulose material;
(b) contacting said lignocellulose material with cooking liquor and a compound of Formula I

Formula I
wherein X’, Y are independently selected from the group consisting of halogen, and hydrogen; and X, Y’ are selected from the group consisting of halogen, hydrogen, hydroxy, and alkyl, to obtain a first mixture;
(c) cooking said mixture to obtain a second mixture; and
(d) washing said second mixture to obtain pulp.
2. The method as claimed in claim 1, wherein said lignocellulose material is selected from the group consisting of woody lignocellulose material, non-woody lingocellulose material, and combinations thereof.
3. The method as claimed in claim 1, wherein said lignocellulose material has moisture content in the range of 5-60 wt %.
4. The method as claimed in claim 1, wherein said lignocellulose material has size in the range of 2-10 mm.
5. The method as claimed in claim 1, wherein X’, and Y are independently selected from the group consisting of chlorine, bromine, iodine, and hydrogen; and X, Y’ are selected from the group consisting of chlorine, bromine, iodine, hydrogen,hydroxy, and C1-C6 alkyl.
6. The method as claimed in claim 1, wherein X, X’, Y, and Y’ are chlorine.
7. The method as claimed in claim 1, wherein said compound of Formula I is present in the weight percent range of 0.001 to 2% with respect to said lignocellulose material without moisture in the first mixture.
8. The method as claimed in claim 1, wherein said lignocellulose material without moisture to said cooking liquor weight by weight ratio is in the range of 1:2-1:4 in first mixture.
9. The method as claimed in claim 1, wherein said cooking liquor has an active alkali in the range of 75-100 gpl
10. The method as claimed in claim 1, wherein said cooking liquor has a sulphidity in the range of 10-50%.
11. The method as claimed in claim 1, wherein said cooking liquor has an active alkali charging in the range of 15-25%

12. The method as claimed in claim 1, wherein cooking is carried out at a temperature in the range of 90-180°C, for a time in the range of 1-5 h, and at a pressure in the range of 5-7kg/cm3.
13. The method as claimed in claim 11, wherein said cooking is a two steps process comprises a first step of heating at temperature in the range of 90-100°C for 1h, followed by a second step of heating at a temperature in the range of 160-170°C for 2h 15 min.
14. The method as claimed in claim 1, said second mixture is washed with water at 20-30 °C to obtain pulp and colorless waste water.
15. The method as claimed in claim 1, further comprising screening said pulp from step (d) through a mesh with pores to obtain rejects and pulp.
16. A pulp obtained from the method as claimed in any of the claims 1-14.

17. A pulp as claimed in claim 15 for use in the manufacture of cellulose base products.
, Description:As Attached