CA1332424C - Recyclage de l'acide use dans le processus de fabrication de l'acide methacrylique ou de ses esters - Google Patents

Recyclage de l'acide use dans le processus de fabrication de l'acide methacrylique ou de ses esters

Info

Publication number
CA1332424C
CA1332424C CA 575132 CA575132A CA1332424C CA 1332424 C CA1332424 C CA 1332424C CA 575132 CA575132 CA 575132 CA 575132 A CA575132 A CA 575132A CA 1332424 C CA1332424 C CA 1332424C
Authority
CA
Canada
Prior art keywords
acid
spent
spent acid
feed
water
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 - Fee Related
Application number
CA 575132
Other languages
English (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.)
ICI Acrylics Inc
Original Assignee
ICI Acrylics Inc
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 ICI Acrylics Inc filed Critical ICI Acrylics Inc
Application granted granted Critical
Publication of CA1332424C publication Critical patent/CA1332424C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
CA 575132 1987-08-20 1988-08-18 Recyclage de l'acide use dans le processus de fabrication de l'acide methacrylique ou de ses esters Expired - Fee Related CA1332424C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8751487A 1987-08-20 1987-08-20
US087,514 1987-08-20

Publications (1)

Publication Number Publication Date
CA1332424C true CA1332424C (fr) 1994-10-11

Family

ID=22205641

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 575132 Expired - Fee Related CA1332424C (fr) 1987-08-20 1988-08-18 Recyclage de l'acide use dans le processus de fabrication de l'acide methacrylique ou de ses esters

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
JP2023547392A (ja) 2020-10-23 2023-11-10 レーム・ゲーエムベーハー 不要な副産物の低減によるメタクリル酸（ｍａｓ）および／またはアルキルメタクリレートの最適化された製造方法

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
GB2208864B (en) 1991-07-10
FR2619563A1 (fr) 1989-02-24
ES2012539A6 (es) 1990-04-01
FR2619563B1 (fr) 1994-04-01
DE3828253A1 (de) 1989-03-02
JP2679819B2 (ja) 1997-11-19
NL8802064A (nl) 1989-03-16
DE3828253C2 (de) 1999-10-28
JPS6470433A (en) 1989-03-15
GB8819764D0 (en) 1988-09-21

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Legal Events

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