JPS5727134A - Method for recovering copper catalyst - Google Patents

Method for recovering copper catalyst

Info

Publication number
JPS5727134A
JPS5727134A JP10066080A JP10066080A JPS5727134A JP S5727134 A JPS5727134 A JP S5727134A JP 10066080 A JP10066080 A JP 10066080A JP 10066080 A JP10066080 A JP 10066080A JP S5727134 A JPS5727134 A JP S5727134A
Authority
JP
Japan
Prior art keywords
copper catalyst
solution
ammonia
acid
catalyst
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
JP10066080A
Other languages
Japanese (ja)
Other versions
JPS6226815B2 (en
Inventor
Yuzuru Takahashi
Mitsuo Iida
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP10066080A priority Critical patent/JPS5727134A/en
Publication of JPS5727134A publication Critical patent/JPS5727134A/en
Publication of JPS6226815B2 publication Critical patent/JPS6226815B2/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
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To recover copper catalyst having activities almost equal to fresh catalysts almost quantitatively through a simple method, by performing an acid treatment on solution of aminated reactant liquid of halogenated benzene after the product is separated.
CONSTITUTION: When, for example, aniline is manufactured from chlorobenzene and ammonia, a copper catalyst, such as cuprous oxide, etc., is used. The reacted solution is cooled after aniline is separated and free ammonia and amines are removed by heating and stirring the solution containing copper catalyst. Then, a mineral acid, such as sulfuric acid, etc., is added to the solution and the copper catalyst is recovered. A high recovery is expected when the added amount of acid is regulated to 0.8W1.2 equivalent basing on the amount of the free ammonia and the ammonia which forms a complex with the catalyst, and the pH is regulated to 5W8. The copper compound deposited by this acid treatment is recovered by means of centrifugal separator, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP10066080A 1980-07-23 1980-07-23 Method for recovering copper catalyst Granted JPS5727134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10066080A JPS5727134A (en) 1980-07-23 1980-07-23 Method for recovering copper catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10066080A JPS5727134A (en) 1980-07-23 1980-07-23 Method for recovering copper catalyst

Publications (2)

Publication Number Publication Date
JPS5727134A true JPS5727134A (en) 1982-02-13
JPS6226815B2 JPS6226815B2 (en) 1987-06-11

Family

ID=14279951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10066080A Granted JPS5727134A (en) 1980-07-23 1980-07-23 Method for recovering copper catalyst

Country Status (1)

Country Link
JP (1) JPS5727134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008523012A (en) * 2004-12-10 2008-07-03 シンジェンタ パーティシペーションズ アクチェンゲゼルシャフト Method for producing aniline

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008523012A (en) * 2004-12-10 2008-07-03 シンジェンタ パーティシペーションズ アクチェンゲゼルシャフト Method for producing aniline

Also Published As

Publication number Publication date
JPS6226815B2 (en) 1987-06-11

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