EP 0356804 B1 19920520 - PROCESS FOR THE PRODUCTION OF ALKALI DICHROMATES AND CHROMIC ACID
Title (en)
PROCESS FOR THE PRODUCTION OF ALKALI DICHROMATES AND CHROMIC ACID
Publication
Application
Priority
DE 3829119 A 19880827
Abstract (en)
[origin: EP0356804A2] Process for the production of alkali dichromates and chromic acid by electrolysing alkali monochromate or alkali dichromate solutions, in which process dimensionally stable anodes made of valve metals which are activated by electrodeposition of noble metals and/or noble metal compounds from melts containing noble metal salts are used.
IPC 1-7
IPC 8 full level
C01G 37/14 (2006.01); C25B 1/14 (2006.01); C25B 1/22 (2006.01); C25B 1/28 (2006.01); C25B 11/08 (2006.01)
CPC (source: EP KR US)
C25B 1/22 (2013.01 - EP KR US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0356804 A2 19900307; EP 0356804 A3 19900418; EP 0356804 B1 19920520; AR 242995 A1 19930630; BR 8904255 A 19900410; CA 1337806 C 19951226; DD 284059 A5 19901031; DE 3829119 A1 19900301; DE 58901476 D1 19920625; ES 2031323 T3 19921201; JP 2839153 B2 19981216; JP H02102126 A 19900413; KR 900003068 A 19900323; KR 970003073 B1 19970314; MX 169889 B 19930729; RO 107135 B1 19930930; SU 1741612 A3 19920615; TR 24791 A 19920310; US 4981573 A 19910101; ZA 896497 B 19900530
DOCDB simple family (application)
EP 89115032 A 19890815; AR 31474989 A 19890825; BR 8904255 A 19890824; CA 609437 A 19890825; DD 33209789 A 19890825; DE 3829119 A 19880827; DE 58901476 T 19890815; ES 89115032 T 19890815; JP 21512989 A 19890823; KR 890012189 A 19890826; MX 1709389 A 19890807; RO 14122289 A 19890810; SU 4614833 A 19890823; TR 67589 A 19890822; US 39287389 A 19890811; ZA 896497 A 19890825