KR850003336A - Recovery method of a terephthalic acid production catalyst - Google Patents

Recovery method of a terephthalic acid production catalyst Download PDF

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Publication number
KR850003336A
KR850003336A KR1019830005365A KR830005365A KR850003336A KR 850003336 A KR850003336 A KR 850003336A KR 1019830005365 A KR1019830005365 A KR 1019830005365A KR 830005365 A KR830005365 A KR 830005365A KR 850003336 A KR850003336 A KR 850003336A
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KR
South Korea
Prior art keywords
terephthalic acid
acetic acid
production catalyst
acid production
recovery method
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KR1019830005365A
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Korean (ko)
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KR850001772B1 (en
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조영목, (외 2)
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이춘화
삼성석유화학 주식회사
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Priority to KR1019830005365A priority Critical patent/KR850001772B1/en
Publication of KR850003336A publication Critical patent/KR850003336A/en
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Publication of KR850001772B1 publication Critical patent/KR850001772B1/en

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    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/40—Regeneration or reactivation

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

내용 없음No content

Description

테레프탈산 제조 촉매의 회수 방법Recovery method of a terephthalic acid production catalyst

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (4)

초산 용매 중에서 초산코발트 및 초산망간 촉매 존재하에 p-크실렌을 산화시켜 테레프탈산을 제조함에 있어서, 그 반응 용액으로부터 공지의 방법으로 테레프탈산, 반응모액 및 용매를 분리한 반응폐액의 고형분에 대한 함수율을 25∼40%로 조정하여 800∼850℃에서 안전 소각 산화시켜 얻은 회분을 물 및 98% 초산의 혼합 용망에 용해한 다음 5∼35% 과산화수소와 반응시키는 제1공정과 이 반응액으로부터 미반응 물질을 제거하는 제2공정의 결합으로 구성된 것이 특징인 테레프탈산 제조촉매의 회수 방법.In preparing terephthalic acid by oxidizing p-xylene in the presence of cobalt acetate and manganese acetate catalyst in acetic acid solvent, the water content of the reaction waste solution obtained by separating the terephthalic acid, the reaction mother liquor and the solvent by a known method is 25 to The first step is to remove the unreacted substance from the first step of dissolving the ash obtained by incineration at 40-90 ° C. and safe incineration at 800-850 ° C. in a mixed solution of water and 98% acetic acid and then reacting with 5-35% hydrogen peroxide. A method for recovering a terephthalic acid production catalyst, characterized in that the combination of the second step. 제1항에 있어서, 물의 첨가량을 최종 초산의 농도가 5∼40%로 유지되는 양으로 하는 것이 특징인 방법.The method according to claim 1, wherein the amount of water added is such that the concentration of the final acetic acid is maintained at 5 to 40%. 제1항에 있어서, 초산과 과산화수소의 첨가비가 1 : 1 내지 10 : 1인 것이 특징인 방법.The method according to claim 1, wherein the addition ratio of acetic acid and hydrogen peroxide is from 1: 1 to 10: 1. 제1항에 있어서, 제1공정을 30∼80℃ 근처에서 수행하는 것이 특징인 방법.The method of claim 1 wherein the first process is performed at about 30 to 80 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830005365A 1983-11-11 1983-11-11 Method of reproduct for catalist KR850001772B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019830005365A KR850001772B1 (en) 1983-11-11 1983-11-11 Method of reproduct for catalist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019830005365A KR850001772B1 (en) 1983-11-11 1983-11-11 Method of reproduct for catalist

Publications (2)

Publication Number Publication Date
KR850003336A true KR850003336A (en) 1985-06-17
KR850001772B1 KR850001772B1 (en) 1985-12-18

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KR1019830005365A KR850001772B1 (en) 1983-11-11 1983-11-11 Method of reproduct for catalist

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107721847B (en) * 2017-10-28 2020-07-17 浙江上虞利星化工有限公司 Method for preparing cobalt manganese acetate aqueous solution by utilizing recovered cobalt manganese
CN107652177A (en) * 2017-10-28 2018-02-02 浙江上虞利星化工有限公司 A kind of preparation method of cobalt or/and manganese acetate

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Publication number Publication date
KR850001772B1 (en) 1985-12-18

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