JPS52128344A - Preparation of high-purity terephthalic acid - Google Patents

Preparation of high-purity terephthalic acid

Info

Publication number
JPS52128344A
JPS52128344A JP4529276A JP4529276A JPS52128344A JP S52128344 A JPS52128344 A JP S52128344A JP 4529276 A JP4529276 A JP 4529276A JP 4529276 A JP4529276 A JP 4529276A JP S52128344 A JPS52128344 A JP S52128344A
Authority
JP
Japan
Prior art keywords
terephthalic acid
preparation
purity terephthalic
crystallization products
purity
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
JP4529276A
Other languages
Japanese (ja)
Other versions
JPS5635174B2 (en
Inventor
Makoto Komatsu
Koichi Abe
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.)
Mizushima Aroma Co Ltd
Mitsubishi Gas Chemical Co Inc
Toyobo Co Ltd
Original Assignee
Mizushima Aroma Co Ltd
Mitsubishi Gas Chemical Co Inc
Toyobo 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 Mizushima Aroma Co Ltd, Mitsubishi Gas Chemical Co Inc, Toyobo Co Ltd filed Critical Mizushima Aroma Co Ltd
Priority to JP4529276A priority Critical patent/JPS52128344A/en
Publication of JPS52128344A publication Critical patent/JPS52128344A/en
Publication of JPS5635174B2 publication Critical patent/JPS5635174B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE:To obtain the high-purity terephthalic acid in high yields by [a] dissolving the crude terephthalic acid obtained by the liquid oxidation of p-dialkylbenzene in the presence of catalyst, in hot water, [B] isolating the first crystallization products, and [C] returning the second crystallization products to the aforesaid oxidation process.
JP4529276A 1976-04-20 1976-04-20 Preparation of high-purity terephthalic acid Granted JPS52128344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4529276A JPS52128344A (en) 1976-04-20 1976-04-20 Preparation of high-purity terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4529276A JPS52128344A (en) 1976-04-20 1976-04-20 Preparation of high-purity terephthalic acid

Publications (2)

Publication Number Publication Date
JPS52128344A true JPS52128344A (en) 1977-10-27
JPS5635174B2 JPS5635174B2 (en) 1981-08-15

Family

ID=12715227

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4529276A Granted JPS52128344A (en) 1976-04-20 1976-04-20 Preparation of high-purity terephthalic acid

Country Status (1)

Country Link
JP (1) JPS52128344A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304676A (en) * 1991-02-05 1994-04-19 Imperial Chemical Industries Plc Process for the production of terephthalic acid
WO2006001449A1 (en) * 2004-06-28 2006-01-05 Mitsubishi Chemical Corporation Process for producing high-purity terephthalic acid
US8686186B2 (en) 2009-04-24 2014-04-01 Invista North America S.Ar.L. Methods, processes, and systems for treating and purifying crude terephthalic acid and associated process streams

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006028809A2 (en) * 2004-09-02 2006-03-16 Eastman Chemical Company Optimized production of aromatic dicarboxylic acids

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304676A (en) * 1991-02-05 1994-04-19 Imperial Chemical Industries Plc Process for the production of terephthalic acid
USRE36008E (en) * 1991-02-05 1998-12-22 E. I. Du Pont De Nemours And Company Process for the production of terephthalic acid
CN1130328C (en) * 1991-02-05 2003-12-10 纳幕尔杜邦公司 Production of terephthalic acid
WO2006001449A1 (en) * 2004-06-28 2006-01-05 Mitsubishi Chemical Corporation Process for producing high-purity terephthalic acid
US8686186B2 (en) 2009-04-24 2014-04-01 Invista North America S.Ar.L. Methods, processes, and systems for treating and purifying crude terephthalic acid and associated process streams

Also Published As

Publication number Publication date
JPS5635174B2 (en) 1981-08-15

Similar Documents

Publication Publication Date Title
YU224174A (en) Preparation of terephthalic acid by continuous fast crystallization
JPS523030A (en) Process for manufacturing high purity terephthalic acid
BR7407075D0 (en) PROCESS FOR THE PREPARATION OF ANhydride FROM A MONOCARBOXYLIC ACID PROCESS FOR THE PREPARATION OF A LOWER ALKANIC ANHIDIDE AND LIQUID PHASE PROCESS FOR THE PREPARATION OF ACETIC ANHYDRIDE
CA1028344A (en) Process for the carboxylation of alcohols in heterogeneous phase
ES417790A1 (en) Process for the preparation of dimethyl terephthalate
JPS52128344A (en) Preparation of high-purity terephthalic acid
JPS5329299A (en) Recovering method for boric acid
IT1021972B (en) PROCEDURE FOR THE PRODUCTION OF ACETIC ACID BY OXIDATION IN THE GASEOUS PHASE
IE39203B1 (en) Formic acid synthesis by alkyl formate hydrolysis
JPS5351295A (en) Preparation of polyester
JPS52128345A (en) Preparation of high-purity terephthalic acid
CA1010899A (en) Process for the preparation of 3-keto-glutaric acid by carboxylation of acetone in glime
HU173535B (en) Fermentative process for producing 7-bracket-alpha-amino-adipoil-bracket closed-amino-3-methyl-3-cepheme-4-carboxylic acid
ES456923A1 (en) Process for the preparation of copper phthylocyanine
JPS5239642A (en) A process for preparing protocatechualdehyde
GB1379719A (en) Method for the production of hydroquinone
CA935180A (en) Process for the preparation of acetic acid by the catalytic oxidation of olefins in the gaseous phase
JPS52131508A (en) Continuous preparation of diisopropylether
CA979921A (en) Process for the production of terephthalic acid, isophthalic acid and their monomethyl esters by the oxidation of p-xylene, m-xylene and the corresponding toluic acid methyl esters
JPS53105471A (en) Preparation of cyclic ethers
JPS5297929A (en) Preparation of aromatic carboxylic acids
CA1013753A (en) Process for the preparation of 4-bromonaphthalic acid anhydride
JPS51138648A (en) Process for preparing cyclohexene
JPS52142025A (en) Production of resorcine
JPS5346916A (en) Preparation of hydroxyacetic acid

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees