BE881325A - PROCESS FOR RECOVERING CYANHYDRIC ACID AND METHYLMERCAPTAN FROM WASTE GASES OF METHIONINE SYNTHESIS - Google Patents
PROCESS FOR RECOVERING CYANHYDRIC ACID AND METHYLMERCAPTAN FROM WASTE GASES OF METHIONINE SYNTHESISInfo
- Publication number
- BE881325A BE881325A BE0/199089A BE199089A BE881325A BE 881325 A BE881325 A BE 881325A BE 0/199089 A BE0/199089 A BE 0/199089A BE 199089 A BE199089 A BE 199089A BE 881325 A BE881325 A BE 881325A
- Authority
- BE
- Belgium
- Prior art keywords
- methylmercaptan
- recovering
- waste gases
- methionine synthesis
- cyanhydric acid
- Prior art date
Links
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 title 2
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 title 1
- 239000002253 acid Substances 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 title 1
- 229930182817 methionine Natural products 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
- 239000002912 waste gas Substances 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/02—Preparation, separation or purification of hydrogen cyanide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/02—Preparation, separation or purification of hydrogen cyanide
- C01C3/04—Separation from gases
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/26—Separation; Purification; Stabilisation; Use of additives
- C07C319/28—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C321/00—Thiols, sulfides, hydropolysulfides or polysulfides
- C07C321/02—Thiols having mercapto groups bound to acyclic carbon atoms
- C07C321/04—Thiols having mercapto groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/57—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups
- C07C323/58—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being further substituted by nitrogen atoms, not being part of nitro or nitroso groups with amino groups bound to the carbon skeleton
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54007852A JPS60344B2 (en) | 1979-01-25 | 1979-01-25 | Method for recovering active ingredients from methionine synthesis exhaust gas |
| JP994679A JPS60345B2 (en) | 1979-01-30 | 1979-01-30 | Method for recovering active ingredients from methionine synthesis exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE881325A true BE881325A (en) | 1980-05-16 |
Family
ID=26342237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/199089A BE881325A (en) | 1979-01-25 | 1980-01-24 | PROCESS FOR RECOVERING CYANHYDRIC ACID AND METHYLMERCAPTAN FROM WASTE GASES OF METHIONINE SYNTHESIS |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE881325A (en) |
| DE (1) | DE3001806A1 (en) |
| FR (1) | FR2447367A1 (en) |
| IT (1) | IT1143010B (en) |
| MX (1) | MX154099A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650890A (en) * | 2022-04-28 | 2023-01-31 | 宁夏紫光天化蛋氨酸有限责任公司 | Method for treating tail gas generated in production of 2-hydroxy-4-methylthiobutyronitrile |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636098A (en) * | 1966-07-02 | 1972-01-18 | Sumitomo Chemical Co | Process for producing methionine |
| DE2315935A1 (en) * | 1973-03-30 | 1974-10-10 | Quimco Gmbh | Imidazole derivs. and prodn. from aldehyde - by reacting with ammonia and hydrogen cyanide and ring closure |
-
1980
- 1980-01-18 DE DE19803001806 patent/DE3001806A1/en active Granted
- 1980-01-23 IT IT47681/80A patent/IT1143010B/en active
- 1980-01-23 FR FR8001451A patent/FR2447367A1/en active Granted
- 1980-01-24 BE BE0/199089A patent/BE881325A/en not_active IP Right Cessation
- 1980-01-24 MX MX180942A patent/MX154099A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2447367A1 (en) | 1980-08-22 |
| IT8047681A0 (en) | 1980-01-23 |
| MX154099A (en) | 1987-05-08 |
| IT1143010B (en) | 1986-10-22 |
| DE3001806C2 (en) | 1990-05-23 |
| DE3001806A1 (en) | 1980-07-31 |
| FR2447367B1 (en) | 1983-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SUMITOMO CHEMICAL CY LTD Effective date: 19960131 |