94.
(11) Patent number: 2152448
(46) Date of publication: 10.07.2000
(51) Int. Cl.7: C 22 B 11/00, 3/24, C 01 G 7/00, 5/00
(21) Application number: 99100852/02
(22) Application date: 13.01.1999
(71) Applicant:
Institut khimii nefti SO RAN
(72) Inventor:
Osinenko E.P.,
Antipenko V.R.
(73) Proprietor:
Institut khimii nefti SO RAN
(98) Mail address:
634021, g.Tomsk-21, pr. Akademicheskij 3, Institut khimii nefti SO RAN, PI
(54) PRECIOUS METAL RECOVERY METHOD
(57)
FIELD: precious metal technology. SUBSTANCE: cinder mixture from heat and power stations utilized as adsorbent, prior to be mixed with solutions containing gold and silver to be recovered, is subjected to wet magnetic separation at magnetic field intensity 1000-2000 Oe. EFFECT: increased degree of recovery and mechanical strength of adsorbent. 7 ex
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