Title:
METHOD FOR RECOVERING BROMINE CONTAINED IN A DISCHARGE
Document Type and Number:
WIPO Patent Application WO/1980/001905
Kind Code:
A1
Abstract:
A method for recovering bromine from a discharge produced upon p reparation of anilines by ammonolysis of bromobenzene substituted by a halogen atom or a functional group in the nucleus thereof, which comprises first treating the discharge with chlorine in an alkaline region to remove most of ammonia and anilines contained therein, then treating with chlorine in an acidic region to recover bromine. This method can be industrially practiced smoothly without danger of explosion.
Inventors:
YOKOMICHI I (JP)
YAMADA T (JP)
OTA K (JP)
MOHRI A (JP)
IKEDA M (JP)
YAMADA T (JP)
OTA K (JP)
MOHRI A (JP)
IKEDA M (JP)
Application Number:
PCT/JP1979/000239
Publication Date:
September 18, 1980
Filing Date:
September 07, 1979
Export Citation:
Assignee:
ISHIHARA MINING & CHEMICAL CO (JP)
NISSAN CHEMICAL IND LTD (JP)
YOKOMICHI I (JP)
YAMADA T (JP)
OTA K (JP)
MOHRI A (JP)
IKEDA M (JP)
NISSAN CHEMICAL IND LTD (JP)
YOKOMICHI I (JP)
YAMADA T (JP)
OTA K (JP)
MOHRI A (JP)
IKEDA M (JP)
International Classes:
C01B7/09; C02F1/76; (IPC1-7): C01B7/09; C02F1/76; C07C85/04
Foreign References:
| JPS5015797A | 1975-02-19 | |||
| US4031194A | 1977-06-21 | |||
| JPS5280658A | 1977-07-06 | |||
| US3401203A | 1968-09-10 |
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