JPS5651243A - Recovery heteropoly-acid catalyst - Google Patents

Recovery heteropoly-acid catalyst

Info

Publication number
JPS5651243A
JPS5651243A JP12660579A JP12660579A JPS5651243A JP S5651243 A JPS5651243 A JP S5651243A JP 12660579 A JP12660579 A JP 12660579A JP 12660579 A JP12660579 A JP 12660579A JP S5651243 A JPS5651243 A JP S5651243A
Authority
JP
Japan
Prior art keywords
heteropoly
acid
products
water
acetic acid
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
JP12660579A
Other languages
Japanese (ja)
Other versions
JPS5951337B2 (en
Inventor
Masayoshi Kubo
Yukihisa Goto
Katsumi Miwa
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 JP54126605A priority Critical patent/JPS5951337B2/en
Publication of JPS5651243A publication Critical patent/JPS5651243A/en
Publication of JPS5951337B2 publication Critical patent/JPS5951337B2/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

Abstract

PURPOSE: To recover heteropoly-acid as a catalyst at a high yield by adding a specified organic medium and water to a distilled residue after isopropyl acetate produced is separated from a reaction liquid.
CONSTITUTION: When propylene is reacted with acetic acid in the liquid phase to produce isopropyl acetate, unreacted acetic acid, products, heteropoly-acid, a small amount of high boiling point byproducts exist in the reaction liquid. After the removal of the products, when an organic medium which dissolves in the high- boiling-point by products but not mixed with water hence separable from the liquid phase even in the presence of acetic acid and water are added to the distilled residue to separate the mixture into two phases, the high-boiling-point byproducts are shifted to an organic phase while the heteropoly-acid as catalyst to a liquid phase. This enables recovery of expensive heteropoly-acid at a high yield.
COPYRIGHT: (C)1981,JPO&Japio
JP54126605A 1979-10-01 1979-10-01 Recovery method of heteropolyacid catalyst Expired JPS5951337B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54126605A JPS5951337B2 (en) 1979-10-01 1979-10-01 Recovery method of heteropolyacid catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54126605A JPS5951337B2 (en) 1979-10-01 1979-10-01 Recovery method of heteropolyacid catalyst

Publications (2)

Publication Number Publication Date
JPS5651243A true JPS5651243A (en) 1981-05-08
JPS5951337B2 JPS5951337B2 (en) 1984-12-13

Family

ID=14939324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54126605A Expired JPS5951337B2 (en) 1979-10-01 1979-10-01 Recovery method of heteropolyacid catalyst

Country Status (1)

Country Link
JP (1) JPS5951337B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162605A (en) * 1985-01-07 1986-07-23 アトム化学塗料株式会社 Road mark apparatus
JPS63300101A (en) * 1987-05-29 1988-12-07 岳南光機株式会社 Method for positioning road dividing line

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011126774A (en) * 2009-11-20 2011-06-30 Sumitomo Chemical Co Ltd Method for recovering polyoxoanion compound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162605A (en) * 1985-01-07 1986-07-23 アトム化学塗料株式会社 Road mark apparatus
JPH0252044B2 (en) * 1985-01-07 1990-11-09 Atom Kagaku Toryo Kk
JPS63300101A (en) * 1987-05-29 1988-12-07 岳南光機株式会社 Method for positioning road dividing line

Also Published As

Publication number Publication date
JPS5951337B2 (en) 1984-12-13

Similar Documents

Publication Publication Date Title
JPS5384933A (en) Preparation of terephthalic acid
US4659846A (en) Preparation of 2,5-diloweralkyl-1.4:3,6-dianhydrosorbitols
JPS5651243A (en) Recovery heteropoly-acid catalyst
JPS5553265A (en) Preparation of aromatic hydroperoxide
JPS5695142A (en) Preparation of aliphatic aldehyde
SU453392A1 (en) METHOD OF OBTAINING IODBENZEN
ES8106476A1 (en) Process for the recovery of carboxylic acids from mixtures containing glycol esters derived from these acids.
JPS5636425A (en) Preparation of acetaldehyde dimethyl acetal
JPS5387305A (en) Preparation of 1,4-butanediol and tetrahydrofuran
JPS5679657A (en) Novel preparation of polyisocyanate
JPS557213A (en) Separation of isobutylene from mixed butylene
JPS537640A (en) Synthesis of diphenylamine derivatives
JPS5424810A (en) Synthesis of carboxylic acid ester
JPS53105471A (en) Preparation of cyclic ethers
JPS5432435A (en) Preparation of tetrabromo terephthalic acid
JPS5576836A (en) Treatment of hydrocarbyloxybenzaldehyde-containing oxidation solution
JPS53112828A (en) Treatment of mixture of oxidation reaction
JPS5325504A (en) Isolation of glycols
JPS54103816A (en) Continuous preparation of ethylene glycol monoethyl ether acetate
JPS52139043A (en) Recovery of toluylenediisocyanate
JPS52101687A (en) Recovery of catalyst
JPS5219607A (en) Process for recovery of polyhydric alcohols
JPS52122330A (en) Preparation of 2-(o-nitrophenyl)ethanols
JPS53132532A (en) Preparation of aromatic compound with acyloxyl-substituted nucleus
JPS5314796A (en) Preparation of polyester