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Method For Preparing Methyl Mercaptan With Treatment Of Gaseous Waste
Abstract: The present invention relates to a method for producing methyl mercaptan, comprising the following steps: A) methanol is reacted with hydrogen sulfide to form a stream (M), preferably in the gas state, comprising methyl mercaptan, unreacted H2S and possibly sulfur-bearing by-products; B) optionally, said stream (M) is condensed; C) at least one step of purifying said stream (M) is carried out in order to obtain a methyl mercaptan-enriched stream; D) the gaseous effluents resulting from said at least one purification step are recovered, said gaseous effluents comprising at least one sulfur-bearing compound, preferably H2S; E) a gas-liquid extraction of said at least one sulfur-bearing compound, preferably H2S, is carried out using liquid methanol so as to obtain a liquid methanol enriched in sulfur-bearing compound(s), preferably in H2S; and F) optionally, said enriched methanol is used as a reactant for the reaction of step A).
Notices, Deadlines & Correspondence
Patent Information
Applicants
ARKEMA FRANCE
Inventors
1. FREMY, Georges
2. RAYMOND, Jean-Michel
3. LAMANT, Eric
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317044423-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [03-07-2023(online)].pdf | 2023-07-03 |
| 2 | 202317044423-STATEMENT OF UNDERTAKING (FORM 3) [03-07-2023(online)].pdf | 2023-07-03 |
| 3 | 202317044423-REQUEST FOR EXAMINATION (FORM-18) [03-07-2023(online)].pdf | 2023-07-03 |
| 4 | 202317044423-PROOF OF RIGHT [03-07-2023(online)].pdf | 2023-07-03 |
| 5 | 202317044423-PRIORITY DOCUMENTS [03-07-2023(online)].pdf | 2023-07-03 |
| 6 | 202317044423-POWER OF AUTHORITY [03-07-2023(online)].pdf | 2023-07-03 |
| 7 | 202317044423-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [03-07-2023(online)].pdf | 2023-07-03 |
| 8 | 202317044423-FORM 18 [03-07-2023(online)].pdf | 2023-07-03 |
| 9 | 202317044423-FORM 1 [03-07-2023(online)].pdf | 2023-07-03 |
| 10 | 202317044423-DRAWINGS [03-07-2023(online)].pdf | 2023-07-03 |
| 11 | 202317044423-DECLARATION OF INVENTORSHIP (FORM 5) [03-07-2023(online)].pdf | 2023-07-03 |
| 12 | 202317044423-COMPLETE SPECIFICATION [03-07-2023(online)].pdf | 2023-07-03 |
| 13 | 202317044423-FORM 3 [25-12-2023(online)].pdf | 2023-12-25 |
| 14 | 202317044423-FER.pdf | 2025-03-07 |
| 15 | 202317044423-FORM 3 [01-05-2025(online)].pdf | 2025-05-01 |
| 16 | 202317044423-Verified English translation [08-05-2025(online)].pdf | 2025-05-08 |
| 17 | 202317044423-FORM 4 [12-08-2025(online)].pdf | 2025-08-12 |
Search Strategy
| 1 | 202317044423_SearchStrategyNew_E_Search202317044423E_06-03-2025.pdf |