GB1350736A - Process for production of acrylic acid and methacrylic acid - Google Patents

Process for production of acrylic acid and methacrylic acid

Info

Publication number
GB1350736A
GB1350736A GB671172A GB671172A GB1350736A GB 1350736 A GB1350736 A GB 1350736A GB 671172 A GB671172 A GB 671172A GB 671172 A GB671172 A GB 671172A GB 1350736 A GB1350736 A GB 1350736A
Authority
GB
United Kingdom
Prior art keywords
oxygen
acrylic
methacrolein
acrolein
feb
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
Application number
GB671172A
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
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB1350736A publication Critical patent/GB1350736A/en
Expired 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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives

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)

Abstract

1350736 Acrylic and methacrylic acids SUMITOMO CHEMICAL CO Ltd 14 Feb 1972 [15 Feb 1971] 6711/72 Heading C2C In a process for the preparation of acrylic and/or methacrylic acid by the gas phase catalytic oxidation of propylene and/or acrolein or of isobutylene and/or methacrolein with molecular oxygen, acrolein and/or methacrolein are/is stripped from the resulting aqueous product by contacting with oxygen. Air alone, or with enhanced oxygen concentration may be used as the oxygen source with a contact temperature of 0‹ to 80‹ C. in a wet wall, packed or plate, stripping tower. The resulting gaseous mixture after stripping is used as the oxygen source for further oxidation to the acids.
GB671172A 1971-02-15 1972-02-14 Process for production of acrylic acid and methacrylic acid Expired GB1350736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP688871 1971-02-15

Publications (1)

Publication Number Publication Date
GB1350736A true GB1350736A (en) 1974-04-24

Family

ID=11650757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB671172A Expired GB1350736A (en) 1971-02-15 1972-02-14 Process for production of acrylic acid and methacrylic acid

Country Status (5)

Country Link
BE (1) BE779384A (en)
DE (1) DE2207093A1 (en)
FR (1) FR2127018B1 (en)
GB (1) GB1350736A (en)
NL (1) NL7201983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1818324A1 (en) * 2006-01-20 2007-08-15 Nippon Shokubai Co., Ltd. Process for producing (Meth) acrylic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001385A (en) * 1979-03-15 1980-09-17 Halcon Res & Dev METHOD FOR THE PREPARATION OF METHACRYLIC ACID.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1315258A (en) * 1961-01-26 1963-01-18 Knapsack Ag Process for the preparation of acrylic acid and for its esterification into methyl acrylate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1818324A1 (en) * 2006-01-20 2007-08-15 Nippon Shokubai Co., Ltd. Process for producing (Meth) acrylic acid
US7368602B2 (en) 2006-01-20 2008-05-06 Nippon Shokubai Co., Ltd. Process for producing (meth) acrylic acid
CN101003479B (en) * 2006-01-20 2010-06-16 株式会社日本触媒 Process for producing (meth) acrylic acid
KR100999428B1 (en) * 2006-01-20 2010-12-09 니폰 쇼쿠바이 컴파니 리미티드 Process for producing methacrylic acid

Also Published As

Publication number Publication date
NL7201983A (en) 1972-08-17
FR2127018A1 (en) 1972-10-13
BE779384A (en) 1972-08-16
DE2207093A1 (en) 1972-08-31
FR2127018B1 (en) 1974-04-05

Similar Documents

Publication Publication Date Title
JPS51115414A (en) Process for preparation of unsaturated fatty acids
JPS5212126A (en) Process for preparation of methacrylic acid
FI801363A (en) FRAMSTERING OF N-PHOSPHONMETHYL GLYCIN
GB1508868A (en) Catalytic oxidation process
GB1350736A (en) Process for production of acrylic acid and methacrylic acid
YU35967B (en) Process for the preparation of a catalyst for the reaction of ethylene,oxygen and oxygen containing gases and carboxylic acids into vinyl esters
GB1525908A (en) Process for the preparation of a catalyst for use in the oxidation in the vapour phase of unsaturated aldehydes to the corresponding acids
GB1399398A (en) Process for the manufacture of saturated aliphatic monocarbo xylic acids
SE7711869L (en) PROCEDURE FOR THE PREPARATION OF TEREFTAL ACID
UA8349A1 (en) Process for preparation of terephthalic acid
JPS5382720A (en) Preparation of unsaturated carboxylic acids and their esters
ES392133A1 (en) Manufacture of concentrated nitric acid
GB1430337A (en) Process for the manufacture of methacrylic acid and oxidation catalyst therefor
GB1241649A (en) Process for the production of oxalic acid
ES448524A1 (en) Synthesis of m-benzoyl-hydratropic acid
GB1155589A (en) Improved process for the production of Terephthalic Acid
JPS5268122A (en) Preparation of unsaturated carboxylic acids
GB1456101A (en) Process for dehydrating aqueous solutions of maleic acid to maleic anhydride
GB1449460A (en) Process for producing methacrylic acid
FR2073229A1 (en) Carboxylic acids prodn - by catalytic oxidation of olefins - esp acetic acid
GB1430069A (en) Esterification process
SU414248A1 (en) METHOD OF OBTAINING LOWER ALIPHATIC ACIDS
SU151684A1 (en) Method for producing maleic anhydride
GB1172125A (en) Process for the manufacture of Citraconic Acid Anhydride
GB1012556A (en) A process for preparing acetic anhydride

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years