FR2447367A1 - Procede de recuperation de l'acide cyanhydrique et du methylmercaptan dans les gaz uses de la synthese de la methionine - Google Patents

Procede de recuperation de l'acide cyanhydrique et du methylmercaptan dans les gaz uses de la synthese de la methionine

Info

Publication number
FR2447367A1
FR2447367A1 FR8001451A FR8001451A FR2447367A1 FR 2447367 A1 FR2447367 A1 FR 2447367A1 FR 8001451 A FR8001451 A FR 8001451A FR 8001451 A FR8001451 A FR 8001451A FR 2447367 A1 FR2447367 A1 FR 2447367A1
Authority
FR
France
Prior art keywords
hydantoin
waste gases
synthesis
acid
washing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8001451A
Other languages
English (en)
French (fr)
Other versions
FR2447367B1 (en, 2012
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP54007852A external-priority patent/JPS60344B2/ja
Priority claimed from JP994679A external-priority patent/JPS60345B2/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2447367A1 publication Critical patent/FR2447367A1/fr
Application granted granted Critical
Publication of FR2447367B1 publication Critical patent/FR2447367B1/fr
Granted legal-status Critical Current

Links

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR8001451A 1979-01-25 1980-01-23 Procede de recuperation de l'acide cyanhydrique et du methylmercaptan dans les gaz uses de la synthese de la methionine Granted FR2447367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP54007852A JPS60344B2 (ja) 1979-01-25 1979-01-25 メチオニン合成排ガスから有効成分の回収方法
JP994679A JPS60345B2 (ja) 1979-01-30 1979-01-30 メチオニン合成排ガスから有効成分の回収法

Publications (2)

Publication Number Publication Date
FR2447367A1 true FR2447367A1 (fr) 1980-08-22
FR2447367B1 FR2447367B1 (en, 2012) 1983-01-28

Family

ID=26342237

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8001451A Granted FR2447367A1 (fr) 1979-01-25 1980-01-23 Procede de recuperation de l'acide cyanhydrique et du methylmercaptan dans les gaz uses de la synthese de la methionine

Country Status (5)

Country Link
BE (1) BE881325A (en, 2012)
DE (1) DE3001806A1 (en, 2012)
FR (1) FR2447367A1 (en, 2012)
IT (1) IT1143010B (en, 2012)
MX (1) MX154099A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115650890A (zh) * 2022-04-28 2023-01-31 宁夏紫光天化蛋氨酸有限责任公司 2-羟基-4-甲硫基丁腈的生产尾气处理方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315935A1 (de) * 1973-03-30 1974-10-10 Quimco Gmbh Neue imidazolderivate und verfahren zu ihrer herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636098A (en) * 1966-07-02 1972-01-18 Sumitomo Chemical Co Process for producing methionine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315935A1 (de) * 1973-03-30 1974-10-10 Quimco Gmbh Neue imidazolderivate und verfahren zu ihrer herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115650890A (zh) * 2022-04-28 2023-01-31 宁夏紫光天化蛋氨酸有限责任公司 2-羟基-4-甲硫基丁腈的生产尾气处理方法

Also Published As

Publication number Publication date
DE3001806A1 (de) 1980-07-31
MX154099A (es) 1987-05-08
DE3001806C2 (en, 2012) 1990-05-23
BE881325A (fr) 1980-05-16
IT1143010B (it) 1986-10-22
IT8047681A0 (it) 1980-01-23
FR2447367B1 (en, 2012) 1983-01-28

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Legal Events

Date Code Title Description
ST Notification of lapse