JPS5443194A - Purifying method for by-product hydrochloric acid - Google Patents

Purifying method for by-product hydrochloric acid

Info

Publication number
JPS5443194A
JPS5443194A JP11096677A JP11096677A JPS5443194A JP S5443194 A JPS5443194 A JP S5443194A JP 11096677 A JP11096677 A JP 11096677A JP 11096677 A JP11096677 A JP 11096677A JP S5443194 A JPS5443194 A JP S5443194A
Authority
JP
Japan
Prior art keywords
impurities
hydrochloric acid
benzene
product
dodecyl
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
JP11096677A
Other languages
Japanese (ja)
Other versions
JPS5611642B2 (en
Inventor
Yoshio Matsushita
Mino Kamimura
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP11096677A priority Critical patent/JPS5443194A/en
Publication of JPS5443194A publication Critical patent/JPS5443194A/en
Publication of JPS5611642B2 publication Critical patent/JPS5611642B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To efficiently purify hydrochloric acid, a by-product of chlorination reaction of benzene (derivatives) without forming exchaust gas, effluent, waste, etc. by extracting the acid with (di)dodecyl-benzene.
CONSTITUTION: (Di)dodecylbenzene is added to hydrochloric acid contg. 500W1,500 ppm of org. cpds. as impurities, a by-product of chlorination reaction of benzene or its drivatives of the formula (R: or lower alkyl) to extract the impurities. After the extraction the (di)dodecyl-benzene is steam distilled to remove the impurities and recycled to the extraction. The impurities are separated from water and fed to the reaction system, and the water layer is recirculated the hydrogen chloride absorption system.
EFFECT: Since the extracted by-product hydrochloric acid is odorless and contains little impurities, it can be reused.
COPYRIGHT: (C)1979,JPO&Japio
JP11096677A 1977-09-13 1977-09-13 Purifying method for by-product hydrochloric acid Granted JPS5443194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11096677A JPS5443194A (en) 1977-09-13 1977-09-13 Purifying method for by-product hydrochloric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11096677A JPS5443194A (en) 1977-09-13 1977-09-13 Purifying method for by-product hydrochloric acid

Publications (2)

Publication Number Publication Date
JPS5443194A true JPS5443194A (en) 1979-04-05
JPS5611642B2 JPS5611642B2 (en) 1981-03-16

Family

ID=14549014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11096677A Granted JPS5443194A (en) 1977-09-13 1977-09-13 Purifying method for by-product hydrochloric acid

Country Status (1)

Country Link
JP (1) JPS5443194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986974A (en) * 1988-08-31 1991-01-22 Hoechst Aktiengesellschaft Process for the separation of halogenated hydrocarbons from hydrochloric acid
US5990756A (en) * 1997-08-06 1999-11-23 Belden Communications Company Ferrite bead for cable installations having one piece encasement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866095A (en) * 1971-12-13 1973-09-11
JPS4942796A (en) * 1972-08-31 1974-04-22
JPS5084613A (en) * 1973-11-28 1975-07-08

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4866095A (en) * 1971-12-13 1973-09-11
JPS4942796A (en) * 1972-08-31 1974-04-22
JPS5084613A (en) * 1973-11-28 1975-07-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986974A (en) * 1988-08-31 1991-01-22 Hoechst Aktiengesellschaft Process for the separation of halogenated hydrocarbons from hydrochloric acid
US5990756A (en) * 1997-08-06 1999-11-23 Belden Communications Company Ferrite bead for cable installations having one piece encasement

Also Published As

Publication number Publication date
JPS5611642B2 (en) 1981-03-16

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