C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/165
C22B 3/28 (2006.01) C01G 17/00 (2006.01) C22B 3/26 (2006.01) C22B 41/00 (2006.01)
Patent
CA 1335756
Process for the recovery of germanium from solutions that contain it, in particular from solutions diluted by the addition of tartaric acid and extraction with an organic solution of a tertiary amine. In the reextraction with sodium hydroxide there iss obtained a concentrate of germanium.
566681
Alvarez Tamargo Francisco
de La Cuadra Herrera Antonio
Fernandez Vicente Arregui
Lorenzo Luis Prieto
Mendez Francisco Javier Sitges
Asturiana de Zinc S.a.
Sim & Mcburney
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