Title:
METHOD OF TREATING CHROMIC ACID-CONTAINING DRAINAGE
Document Type and Number:
Japanese Patent JPS5218059
Kind Code:
A
Abstract:
PURPOSE: To recover chromic acid in the form of concentrated liquid from deconcentrated chromic acid-containing drainage and simultaneously reproduce high-valent water without adding any reducing agent to the drainage.
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Inventors:
YOSHII TOORU
UEDA KENJI
SAKANISHI AKIHIRO
UEDA KENJI
SAKANISHI AKIHIRO
Application Number:
JP9369275A
Publication Date:
February 10, 1977
Filing Date:
August 02, 1975
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
C23C22/86; C02F1/461; (IPC1-7): C02C5/12
Domestic Patent References:
| JPS4734080A | ||||
| JPS5037700A | 1975-04-08 | |||
| JPS506160A | 1975-01-22 | |||
| JPS497128A | 1974-01-22 | |||
| JP44025204A | ||||
| JPS4852641A | 1973-07-24 |