JPS5443194A - Purifying method for by-product hydrochloric acid - Google Patents
Purifying method for by-product hydrochloric acidInfo
- 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
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
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)
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)
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 |
-
1977
- 1977-09-13 JP JP11096677A patent/JPS5443194A/en active Granted
Patent Citations (3)
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)
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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