JPS5443871A - Sparating method for water-soluble organic acid coexisting with inorganic acid - Google Patents

Sparating method for water-soluble organic acid coexisting with inorganic acid

Info

Publication number
JPS5443871A
JPS5443871A JP11129477A JP11129477A JPS5443871A JP S5443871 A JPS5443871 A JP S5443871A JP 11129477 A JP11129477 A JP 11129477A JP 11129477 A JP11129477 A JP 11129477A JP S5443871 A JPS5443871 A JP S5443871A
Authority
JP
Japan
Prior art keywords
water
soluble organic
acid
organic acid
contacting
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.)
Pending
Application number
JP11129477A
Other languages
Japanese (ja)
Inventor
Masaru Noguchi
Takeshi Mori
Shoichi Toida
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co 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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP11129477A priority Critical patent/JPS5443871A/en
Publication of JPS5443871A publication Critical patent/JPS5443871A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform the above-mentioned separation economically and efficiently, by making the water-soluble organic acid migrate selectively by contacting the mixed aqueous solution of inorganic acid and water-soluble organic acid with the solution of water-soluble carboxylic acid in an inert solvent and by making the water-soluble organic acid migrate into water by contacting the extracting liquid with water.
CONSTITUTION: As the water-insoluble carboxylic acid, the carboxylic acids above C8, for example, 2-ethylhexanoic acid, caprylic acid, etc., are used. As the inert solvent, the stable hydrocarbon solvents having boiling point above almost 100°C and insoluble in water, for example, kerosene, etc., are used. Generally, by contacting the mixed aqueous solution of at least one kind of inorganic acids and at least one kind of water-soluble organic acids to the solution containing 0.5W5mol of the water-ins oluble carboxylic acid per 1l of the inert solvent, the water-soluble organic acid is made to migrate into the solution of inert solvent. Then, by contacting the extracting liquid with water, the water-soluble organic acid is extracted reversely into water. Because the mixed waste liquid can be treated continuously, this separating method is efficient and the recovered organic acid is comparatively pure and is reused economically.
COPYRIGHT: (C)1979,JPO&Japio
JP11129477A 1977-09-16 1977-09-16 Sparating method for water-soluble organic acid coexisting with inorganic acid Pending JPS5443871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11129477A JPS5443871A (en) 1977-09-16 1977-09-16 Sparating method for water-soluble organic acid coexisting with inorganic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11129477A JPS5443871A (en) 1977-09-16 1977-09-16 Sparating method for water-soluble organic acid coexisting with inorganic acid

Publications (1)

Publication Number Publication Date
JPS5443871A true JPS5443871A (en) 1979-04-06

Family

ID=14557563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11129477A Pending JPS5443871A (en) 1977-09-16 1977-09-16 Sparating method for water-soluble organic acid coexisting with inorganic acid

Country Status (1)

Country Link
JP (1) JPS5443871A (en)

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