GB2208864B - Spent acid recycle in methacrylic acid or ester manufacture - Google Patents

Spent acid recycle in methacrylic acid or ester manufacture

Info

Publication number
GB2208864B
GB2208864B GB8819764A GB8819764A GB2208864B GB 2208864 B GB2208864 B GB 2208864B GB 8819764 A GB8819764 A GB 8819764A GB 8819764 A GB8819764 A GB 8819764A GB 2208864 B GB2208864 B GB 2208864B
Authority
GB
United Kingdom
Prior art keywords
acid
recycle
methacrylic acid
ester manufacture
spent
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.)
Expired - Lifetime
Application number
GB8819764A
Other languages
English (en)
Other versions
GB2208864A (en
GB8819764D0 (en
Inventor
Hayden Ivan Lipp
Ronald H Halliwell
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB8819764D0 publication Critical patent/GB8819764D0/en
Publication of GB2208864A publication Critical patent/GB2208864A/en
Application granted granted Critical
Publication of GB2208864B publication Critical patent/GB2208864B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00—Preparation of carboxylic acid amides
    • C07C231/06—Preparation of carboxylic acid amides from nitriles by transformation of cyano groups into carboxamide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/18—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group
    • C07C67/20—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from amides or lactams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB8819764A 1987-08-20 1988-08-19 Spent acid recycle in methacrylic acid or ester manufacture Expired - Lifetime GB2208864B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8751487A 1987-08-20 1987-08-20

Publications (3)

Publication Number Publication Date
GB8819764D0 GB8819764D0 (en) 1988-09-21
GB2208864A GB2208864A (en) 1989-04-19
GB2208864B true GB2208864B (en) 1991-07-10

Family

ID=22205641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8819764A Expired - Lifetime GB2208864B (en) 1987-08-20 1988-08-19 Spent acid recycle in methacrylic acid or ester manufacture

Country Status (7)

Country Link
JP (1) JP2679819B2 (fr)
CA (1) CA1332424C (fr)
DE (1) DE3828253C2 (fr)
ES (1) ES2012539A6 (fr)
FR (1) FR2619563B1 (fr)
GB (1) GB2208864B (fr)
NL (1) NL8802064A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393918A (en) * 1993-12-02 1995-02-28 Rohm And Haas Company High yield process for the production of methacrylic acid esters
ZA200303241B (en) * 2002-05-01 2003-11-04 Rohm & Haas Improved process for methacrylic acid and methcrylic acid ester production.
DE102006058250A1 (de) * 2006-12-08 2008-06-12 Evonik Röhm Gmbh Integriertes Verfahren und Vorrichtung zur Herstellung von Methacrylsäureestern aus Aceton und Blausäure
DE102006060161A1 (de) * 2006-12-18 2008-06-26 Evonik Röhm Gmbh Verfahren zur adsorptiven Aufreinigung von Methacrylsäurealkylestern
CN103130671B (zh) * 2013-03-28 2015-06-17 重庆紫光化工股份有限公司 一种清洁的甲基丙烯酰胺的制备和提纯方法
EP4045479B1 (fr) 2020-10-23 2022-10-26 Röhm GmbH Procédé optimisé de fabrication de méthacrylate d'alkyle par réduction des sous-produits interférents
CN116490489A (zh) 2020-10-23 2023-07-25 罗姆化学有限责任公司 通过减少干扰性副产物而优化的用于制备甲基丙烯酸（mas）和/或甲基丙烯酸烷基酯的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042458A (en) * 1933-10-31 1936-06-02 Ici Ltd Production of esters of methacrylic acid
US2416756A (en) * 1941-10-23 1947-03-04 Du Pont Continuous production of esters of methacrylic acid
GB815163A (en) * 1955-07-22 1959-06-17 Electro Chimie Metal Improvements relating to the manufacture of acrylic acids or esters
US2890101A (en) * 1955-07-22 1959-06-09 Electro Chimie Metal Recovery of ammonium bisulphate from the distillation residues from the manufacture of acrylic acids and their esters
DE1468419A1 (de) * 1964-09-23 1969-05-29 Nitrokemia Ipartelepek Verfahren zur Herstellung von Methylmethakrylat
FR2406623A1 (fr) * 1977-10-24 1979-05-18 Chemie Linz Ag Procede pour la preparation d'esters d'acides mono- ou dicarboxyliques par reaction d'amides d'acides carboxyliques avec des alcools, de l'acide sulfurique ou du bisulfate d'ammonium

Also Published As

Publication number Publication date
GB2208864A (en) 1989-04-19
JPS6470433A (en) 1989-03-15
FR2619563B1 (fr) 1994-04-01
JP2679819B2 (ja) 1997-11-19
DE3828253C2 (de) 1999-10-28
DE3828253A1 (de) 1989-03-02
GB8819764D0 (en) 1988-09-21
FR2619563A1 (fr) 1989-02-24
ES2012539A6 (es) 1990-04-01
NL8802064A (nl) 1989-03-16
CA1332424C (fr) 1994-10-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020819