GB1511181A - Preparation of terephthalic acid by oxidation of p-xylene - Google Patents

Preparation of terephthalic acid by oxidation of p-xylene

Info

Publication number
GB1511181A
GB1511181A GB14964/75A GB1496475A GB1511181A GB 1511181 A GB1511181 A GB 1511181A GB 14964/75 A GB14964/75 A GB 14964/75A GB 1496475 A GB1496475 A GB 1496475A GB 1511181 A GB1511181 A GB 1511181A
Authority
GB
United Kingdom
Prior art keywords
mixture
oxidation zone
weight
acetic acid
proportion
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
GB14964/75A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB14964/75A priority Critical patent/GB1511181A/en
Priority to DE19762615070 priority patent/DE2615070A1/en
Priority to FR7610590A priority patent/FR2306967A1/en
Priority to NL7603774A priority patent/NL7603774A/en
Priority to IT22164/76A priority patent/IT1063362B/en
Priority to NL7603780A priority patent/NL7603780A/en
Priority to BE166053A priority patent/BE840624A/en
Priority to DE19762615657 priority patent/DE2615657A1/en
Priority to FR7610522A priority patent/FR2306966A1/en
Priority to JP51041176A priority patent/JPS6050775B2/en
Priority to JP4117576A priority patent/JPS52122334A/en
Publication of GB1511181A publication Critical patent/GB1511181A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • 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
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1511181 Preparation of terephthalic acid by oxidation of p-xylene IMPERIAL CHEMICAL INDUSTRIES Ltd 30 March 1976 [11 April 1975 8 Aug 1975] 14964/75 and 33204/75 Heading C2C The invention comprises a process for the continuous manufacture of terephthalic acid which comprises introducing into an oxidation zone a liquid phase mixture of acetic acid solvent (consisting of acetic acid and water) and pxylene containing a catalyst, the ratio of acetic acid solvent in the reaction mixture in the oxidation zone to p-xylene fed to the oxidation zone being maintained within the limits of 4 : 1 to 7 : 1 by weight, passing a free-oxygencontaining gas through said mixture in the oxidation zone, and maintaining the temperature of said mixture in the oxidation zone between 160‹ to 180‹ C. and the proportion of water in the acetic acid solvent in said mixture between 1 and 7% by weight, the catalyst being a mixture of a cobalt compound, a manganese compound and bromine or a bromide in which the proportion of cobalt compound, determined as metal, is from 1200 to 2500 parts by weight per million of acetic acid solvent present in the reaction mixture in the oxidation zone, the proportion of manganese compound, determined as metal, is from 1 to 30% by weight of the weight of the cobalt compound, determined as metal and the proportion of bromine or bromide is at least 1À5 times the combined weight of the cobalt and manganese compounds, determined as metals, the mean residence time of the said mixture in the oxidation zone being from ¢ to 2 hours.
GB14964/75A 1975-04-11 1975-04-11 Preparation of terephthalic acid by oxidation of p-xylene Expired GB1511181A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB14964/75A GB1511181A (en) 1975-04-11 1975-04-11 Preparation of terephthalic acid by oxidation of p-xylene
DE19762615070 DE2615070A1 (en) 1975-04-11 1976-04-07 PROCESS FOR THE PRODUCTION OF TEREPHTHALIC ACID
FR7610590A FR2306967A1 (en) 1975-04-11 1976-04-09 Terephthalic acid prepd by catalytic oxidn of p-xylene - giving prodt suitable for direct use in polyester
NL7603774A NL7603774A (en) 1975-04-11 1976-04-09 PROCESS FOR THE PREPARATION OF TEREPHALIC ACID.
IT22164/76A IT1063362B (en) 1975-04-11 1976-04-09 OXIDATION PROCESS OF P-XYLENE WITH TEREPHTHALIC ACID
NL7603780A NL7603780A (en) 1975-04-11 1976-04-09 PROCESS FOR PREPARING TEREPHALIC ACID.
BE166053A BE840624A (en) 1975-04-11 1976-04-09 PROCESS FOR THE PRODUCTION OF TEREPHTHALIC ACID BY OXIDATION OF P-XYLENE
DE19762615657 DE2615657A1 (en) 1975-04-11 1976-04-09 OXIDATION PROCESSES, IN PARTICULAR FOR THE PRODUCTION OF TEREPHTHALIC ACID
FR7610522A FR2306966A1 (en) 1975-04-11 1976-04-09 PROCESS FOR THE PRODUCTION OF TEREPHTHALIC ACID BY CATALYTIC OXIDATION OF P-XYLENE
JP51041176A JPS6050775B2 (en) 1975-04-11 1976-04-12 Continuous production method of terephthalic acid
JP4117576A JPS52122334A (en) 1975-04-11 1976-04-12 Production of telephtaalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14964/75A GB1511181A (en) 1975-04-11 1975-04-11 Preparation of terephthalic acid by oxidation of p-xylene

Publications (1)

Publication Number Publication Date
GB1511181A true GB1511181A (en) 1978-05-17

Family

ID=10050674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14964/75A Expired GB1511181A (en) 1975-04-11 1975-04-11 Preparation of terephthalic acid by oxidation of p-xylene

Country Status (6)

Country Link
JP (1) JPS52122334A (en)
BE (1) BE840624A (en)
DE (1) DE2615070A1 (en)
FR (1) FR2306966A1 (en)
GB (1) GB1511181A (en)
NL (1) NL7603774A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414490A1 (en) * 1978-01-13 1979-08-10 Ici Ltd Terephthalic acid prodn. by oxidation of para-xylene - in acetic acid, using catalyst contg. cobalt, manganese and bromine
US4241220A (en) 1977-12-28 1980-12-23 Mitsui Petrochemical Industries, Ltd. Process for producing terephthalic acid
KR100896516B1 (en) * 2002-09-16 2009-05-08 에스케이케미칼주식회사 Preparation method of terephthalic acid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE631757A (en) *
FR1104703A (en) * 1953-07-17 1955-11-23 Ici Ltd Purification of terephthalic acid
FR2044488A6 (en) * 1969-05-22 1971-02-19 Standard Oil Co Recovery of crystalline terephthalic acid by controlled

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241220A (en) 1977-12-28 1980-12-23 Mitsui Petrochemical Industries, Ltd. Process for producing terephthalic acid
FR2414490A1 (en) * 1978-01-13 1979-08-10 Ici Ltd Terephthalic acid prodn. by oxidation of para-xylene - in acetic acid, using catalyst contg. cobalt, manganese and bromine
KR100896516B1 (en) * 2002-09-16 2009-05-08 에스케이케미칼주식회사 Preparation method of terephthalic acid

Also Published As

Publication number Publication date
FR2306966A1 (en) 1976-11-05
NL7603774A (en) 1976-10-13
FR2306966B1 (en) 1980-10-31
DE2615070A1 (en) 1976-10-28
JPS52122334A (en) 1977-10-14
BE840624A (en) 1976-10-11

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Legal Events

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