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1. US20080087553 - Method of extracting hexavalent chromium

Office
United States of America
Application Number 11666268
Application Date 12.04.2006
Publication Number 20080087553
Publication Date 17.04.2008
Grant Number 08157982
Grant Date 17.04.2012
Publication Kind B2
IPC
C25F 5/00
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
5Electrolytic stripping of metallic layers or coatings
C25C 1/10
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
1Electrolytic production, recovery or refining of metals by electrolysis of solutions
06of iron group metals, refractory metals or manganese
10of chromium or manganese
Inventors Yoshida Hideo
Shindo Morihisa
Agents Jordan and Hamburg LLP
Priority Data 2005144858 18.05.2005 JP
Title
(EN) Method of extracting hexavalent chromium
Abstract
(EN)

Hexavalent chrome is extracted from a film on a workpiece which film contains hexavalent chrome and reduced by contacting the contacting workpiece with a liquid or fine particle reducing agent.