FIELD: industrial inorganic synthesis.
SUBSTANCE: nickel metal powder is precipitated from aqueous solution of nickel-containing compound by the help of hydrogen. Aqueous solution is first neutralized with alkali or alkali-earth metal compound to recover nickel in the form of nickel hydroxide or salt formed in reaction with alkali, after which reduction is carried out in continuous mode in presence of ionic catalyst under essentially atmospheric conditions.
EFFECT: enhanced process efficiency.
16 cl, 3 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REDUCING NICKEL FROM AQUEOUS SOLUTION | 2000 |
|
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| METHOD FOR REMOVING HEAVY METAL IONS FROM CONCENTRATED PROCESS SOLUTIONS AND WASTE WATER | 1994 |
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| PROCEDURE FOR COMPLEX PROCESSING NICKEL-COBALT RAW MATERIAL | 2009 |
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| METHOD FOR INTEGRATED WASTEWATER TREATMENT FROM CYANIDE, THIOCYANATE, ARSENIC, ANTIMONY AND HEAVY METALS | 2015 |
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| METHOD OF TREATING WASTE WATERS TO REMOVE ZINC | 1994 |
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| METHOD OF CLEANING OIL AND GAS CONDENSATE TO ELIMINATE HYDROGEN SULFIDE AND MERCAPTANS | 2000 |
|
RU2182924C1 |
| METHOD FOR PRODUCING AMINOBENZOIC ACIDS | 1995 |
|
RU2110511C1 |
| PROCESSING METHOD OF OXIDISED NICKEL-COBALT ORE | 2018 |
|
RU2694188C1 |
| METHOD FOR EXTRACTION OF COBALT | 1997 |
|
RU2095451C1 |
