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JPS5510421A - Treating method for waste sulfuric acid containing toluene sulfonic acid derivative - Google Patents

Treating method for waste sulfuric acid containing toluene sulfonic acid derivative

Info

Publication number
JPS5510421A
JPS5510421A JP8175678A JP8175678A JPS5510421A JP S5510421 A JPS5510421 A JP S5510421A JP 8175678 A JP8175678 A JP 8175678A JP 8175678 A JP8175678 A JP 8175678A JP S5510421 A JPS5510421 A JP S5510421A
Authority
JP
Japan
Prior art keywords
soln
sulfuric acid
sulfonic acid
toluene sulfonic
contg
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
JP8175678A
Other languages
Japanese (ja)
Other versions
JPS614770B2 (en
Inventor
Masahiro Fukui
Masakazu Tsuji
Hisao Eto
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.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Priority to JP8175678A priority Critical patent/JPS5510421A/en
Publication of JPS5510421A publication Critical patent/JPS5510421A/en
Publication of JPS614770B2 publication Critical patent/JPS614770B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Physical Water Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To recover sulfuric acid from a waste sulfuric acid soln. contg. toluene sulfonic acid derivatives by adding a specified org. solvent to the soln. and by simultaneously converting sulfuric acid contained into its ammonium salt to separate the soln. into two layers.
CONSTITUTION: To a waste sulfuric acid soln. contg. toluene sulfonic acid derivatives such as isomers of 6-chloro-3-nitrotoluene-4-sulfonic acid is added about 2W 100, pref. 10W60 vol% of one or more kinds of solvents selected from 2W6C alcohols such as isopropyl alcohol, 2W4C ketones such as acetone, 2W4C aliph. esters such as methyl acetate, 3W8C aliph. carboxylic acids such as butyric acid, and 5- and 6-membered cyclic ethers such as dixoane. After adding ammonia gas or ammonia water furthermore, the soln. is allowed to stand, thus being separated into an org. solvent layer contg. the derivatives and an aq. soln. layer contg. ammonium sulfate. The layers are then taken out separately.
COPYRIGHT: (C)1980,JPO&Japio
JP8175678A 1978-07-05 1978-07-05 Treating method for waste sulfuric acid containing toluene sulfonic acid derivative Granted JPS5510421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8175678A JPS5510421A (en) 1978-07-05 1978-07-05 Treating method for waste sulfuric acid containing toluene sulfonic acid derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8175678A JPS5510421A (en) 1978-07-05 1978-07-05 Treating method for waste sulfuric acid containing toluene sulfonic acid derivative

Publications (2)

Publication Number Publication Date
JPS5510421A true JPS5510421A (en) 1980-01-24
JPS614770B2 JPS614770B2 (en) 1986-02-13

Family

ID=13755277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8175678A Granted JPS5510421A (en) 1978-07-05 1978-07-05 Treating method for waste sulfuric acid containing toluene sulfonic acid derivative

Country Status (1)

Country Link
JP (1) JPS5510421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608245A (en) * 1985-10-17 1986-08-26 Gaddy James L Method of separation of sugars and concentrated sulfuric acid
JPH0452967U (en) * 1990-09-13 1992-05-06
JP2021020832A (en) * 2019-07-30 2021-02-18 Jfeスチール株式会社 Cleaning method of mother liquid of ammonium sulfate, and cleaning apparatus of mother liquid of ammonium sulfate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608245A (en) * 1985-10-17 1986-08-26 Gaddy James L Method of separation of sugars and concentrated sulfuric acid
JPH0452967U (en) * 1990-09-13 1992-05-06
JP2021020832A (en) * 2019-07-30 2021-02-18 Jfeスチール株式会社 Cleaning method of mother liquid of ammonium sulfate, and cleaning apparatus of mother liquid of ammonium sulfate

Also Published As

Publication number Publication date
JPS614770B2 (en) 1986-02-13

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