JPS5551439A - Recovery method of tungstic acid catalyst - Google Patents

Recovery method of tungstic acid catalyst

Info

Publication number
JPS5551439A
JPS5551439A JP12337378A JP12337378A JPS5551439A JP S5551439 A JPS5551439 A JP S5551439A JP 12337378 A JP12337378 A JP 12337378A JP 12337378 A JP12337378 A JP 12337378A JP S5551439 A JPS5551439 A JP S5551439A
Authority
JP
Japan
Prior art keywords
acid catalyst
tungstic acid
acidity
oxidation
organic compound
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
JP12337378A
Other languages
Japanese (ja)
Other versions
JPS5817658B2 (en
Inventor
Kunio Koga
Koji Shima
Yoshiyuki Harano
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.)
Daicel Corp
Original Assignee
Daicel Corp
Daicel 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 Daicel Corp, Daicel Chemical Industries Ltd filed Critical Daicel Corp
Priority to JP53123373A priority Critical patent/JPS5817658B2/en
Publication of JPS5551439A publication Critical patent/JPS5551439A/en
Publication of JPS5817658B2 publication Critical patent/JPS5817658B2/en
Expired 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

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE: To raise greatly the recovery rate of tungstic acid catalyst as compared with the conventional methods by filtering through membrane the reaction mixture obtained from the oxidation of an organic compound over a tungstic acid catalyst with H2O2 under a condition of a low-active oxygen concentration and an acidity.
CONSTITUTION: The reaction mixture obtained from the oxidation of an organic compound having ethylenic unsaturated bonds over a tungstic acid catalyst with H2O2, in which colloidal tungstic acid catalyst is dispersed, is filtered by a membrane method to concentrated into a slurry containing 5W30% tungstic acid catalyst by lessening the amount of soluble tungstic acid catalyst under a condition of an acidity and a low-active oxygen concentration without the necessity for a filtering layer. The slurry so recovered is reused by recycling to the reaction system, and thus more than 98% recovery of the catalyst is possible by a simplified method without the complicated processes as employed in the conventional methods.
COPYRIGHT: (C)1980,JPO&Japio
JP53123373A 1978-10-05 1978-10-05 Recovery method of tungstic acid catalyst Expired JPS5817658B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53123373A JPS5817658B2 (en) 1978-10-05 1978-10-05 Recovery method of tungstic acid catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53123373A JPS5817658B2 (en) 1978-10-05 1978-10-05 Recovery method of tungstic acid catalyst

Publications (2)

Publication Number Publication Date
JPS5551439A true JPS5551439A (en) 1980-04-15
JPS5817658B2 JPS5817658B2 (en) 1983-04-08

Family

ID=14858969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53123373A Expired JPS5817658B2 (en) 1978-10-05 1978-10-05 Recovery method of tungstic acid catalyst

Country Status (1)

Country Link
JP (1) JPS5817658B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586009A1 (en) * 1992-09-01 1994-03-09 ENICHEM S.p.A. Process for separating catalysts from organic solutions, by means of semipermeable membranes
JPH06198202A (en) * 1992-07-31 1994-07-19 Pall Corp Method for removing catalyst
JPH06338675A (en) * 1993-05-31 1994-12-06 Matsushita Electric Works Ltd Manufacture of printed wiring board
US5596111A (en) * 1995-06-05 1997-01-21 North Dakota State University Method for preparation of carboxylic acids
US5628916A (en) * 1994-08-17 1997-05-13 Pall Corporation Method for filtering edible oils
WO2007034972A1 (en) * 2005-09-21 2007-03-29 Sumitomo Chemical Company, Limited Method for recovering tungsten
JP2007111691A (en) * 2005-09-21 2007-05-10 Sumitomo Chemical Co Ltd Method for recovering tungsten
JP2014213227A (en) * 2013-04-23 2014-11-17 株式会社ダイセル Recovery method of oxo acid catalyst, and reuse method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH046833U (en) * 1990-04-28 1992-01-22

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06198202A (en) * 1992-07-31 1994-07-19 Pall Corp Method for removing catalyst
US5690836A (en) * 1992-07-31 1997-11-25 Pall Corporation Method of removing catalyst
EP0586009A1 (en) * 1992-09-01 1994-03-09 ENICHEM S.p.A. Process for separating catalysts from organic solutions, by means of semipermeable membranes
JPH06338675A (en) * 1993-05-31 1994-12-06 Matsushita Electric Works Ltd Manufacture of printed wiring board
US5628916A (en) * 1994-08-17 1997-05-13 Pall Corporation Method for filtering edible oils
US5596111A (en) * 1995-06-05 1997-01-21 North Dakota State University Method for preparation of carboxylic acids
WO2007034972A1 (en) * 2005-09-21 2007-03-29 Sumitomo Chemical Company, Limited Method for recovering tungsten
JP2007111691A (en) * 2005-09-21 2007-05-10 Sumitomo Chemical Co Ltd Method for recovering tungsten
US7993614B2 (en) 2005-09-21 2011-08-09 Sumitomo Chemical Company, Limited Method for recovering tungsten
JP2014213227A (en) * 2013-04-23 2014-11-17 株式会社ダイセル Recovery method of oxo acid catalyst, and reuse method thereof

Also Published As

Publication number Publication date
JPS5817658B2 (en) 1983-04-08

Similar Documents

Publication Publication Date Title
JPS5551439A (en) Recovery method of tungstic acid catalyst
ES8705447A1 (en) Preparation of 14-Hydroxy-N-Ethoxy-Carbonyl-Norcodeinone.
JPS5746929A (en) Preparation of ethanol
JPS57102835A (en) Preparation of acetic acid from ethanol or acetaldehyde
CA2135610A1 (en) Acetylene converter moderators
JPS5252896A (en) Proces for recovering vanadium from waste catalyst of desulfurization
EP0018307B1 (en) Method for the preparation of molybdenum-surface-compounds and their uses
JPS56105752A (en) Regeneration of catalyst
DE2507832A1 (en) PROCEDURE FOR REACTIVATING A DEACTIVATED PHENOLOXYDATION CATALYST
JPS5735544A (en) Preparation of terephthalic acid
Garcia-Orozco Performance of the activated sludge-powdered carbon process in the presence of 2, 4 dichlorophenol and 4, 6 dinitro-o-cresol.
JPS565438A (en) Recovery of monobutadienyl acetate
DE3166509D1 (en) Process for the manufacture of n-tert.-alkylamines and formic-acid esters
JPS5653748A (en) Reactivation method of catalyst for synthesizing oxalic acid diester
US3708509A (en) Process for preparing benzoquinone
GB1473438A (en) Wet oxidation of organic matter
JPS5636427A (en) Preparation of pinacolone
JPS5586522A (en) Desulfurization of exhaust gas
JPS5418467A (en) Recovering method for solvent and complexing agent used for preparing ziegler-natta catalyst
JPS56113772A (en) Preparation of benzotriazole derivative
JPS61192792A (en) Liquefaction of coal by hydrogenation using supported iron sulfide colloid catalyst
JPS5380383A (en) Regenerating method for recovered catalyst
JPS5731629A (en) Preparation of bisphenolethane
JPS565437A (en) Recovery of monobutadienyl acetate
JPS55162737A (en) Co-oxidation process