SU73173A1 - Method of two-stage electrolytic separation of cobalt from nickel - Google Patents

Method of two-stage electrolytic separation of cobalt from nickel

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Publication number
SU73173A1
SU73173A1 SU304532A SU304532A SU73173A1 SU 73173 A1 SU73173 A1 SU 73173A1 SU 304532 A SU304532 A SU 304532A SU 304532 A SU304532 A SU 304532A SU 73173 A1 SU73173 A1 SU 73173A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nickel
cobalt
electrolytic separation
dimethylglyoxime
stage electrolytic
Prior art date
Application number
SU304532A
Other languages
Russian (ru)
Inventor
С.В. Михайлов
Н.П. Федотьев
Original Assignee
С.В. Михайлов
Н.П. Федотьев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by С.В. Михайлов, Н.П. Федотьев filed Critical С.В. Михайлов
Priority to SU304532A priority Critical patent/SU73173A1/en
Application granted granted Critical
Publication of SU73173A1 publication Critical patent/SU73173A1/en

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Description

Предлагаемый способ двухступенчатого отделени  кобалг та от никел  заключаетс  в следующем. Первоначально из растворов кобальта, содер;ка;дих сравнительно большое KOVTHMCCTBG , выдел етс  загр зне- ны11 кобальт при погиощи электролиза с нерастворимыми анодами, ириготозлениыми из кобальтокрелгниевого сплава. При электролизе раствороз , содержа:цих кобальт и никель в 4:1, получаетс  .катодный осадок, в котором отношеи е кобальта к и 1кел;о равно 30:1. Электролиз ведетс  при температуре 50 - 60, при плоткюсти тока на катоде 4-8 au/rf/j- при рН раствора 1,5-2 и iij}ii суммарном содержанш коба;1ьта и никел  30-70 г/.-.The proposed method for the two-stage separation of cobalt from nickel is as follows. Initially, a relatively large KOVTHMCCTBG is released from cobalt solutions, cobalt is contaminated, and electrolyzed with insoluble anodes, irigotozlenymi from cobalt-ramnium alloy. In electrolysis, dissolving, containing: cich cobalt and nickel in 4: 1, a cathode precipitate is obtained, in which the ratio of cobalt to and 1 kel is about 30: 1. Electrolysis is conducted at a temperature of 50–60, with a current density of 4–8 au / rf / j– on the cathode, with a pH of 1.5–2 and iij} ii the total content of coba, 1g and nickel 30–70 g /.-.

О5разую:ца с  ири этом свободиа  i-inc.iOTa нейтрализуетс  jeлo.Oruha: iri inca ii ia inca ii is neutralized jelo.

Полученные при первом электролизе осад:;и используютс  в качестве ааодов второго электролиза, в результате которого получаетс  кобачьт , Г1)акт ;чески свободный от . Второй электролиз проводитс  при рМ 5-6 раствора и введении в электрол ;т буферных добавок и г,ро1юд 1цих солей.The sieges obtained during the first electrolysis are:; and used as aodes of the second electrolysis, which results in cobacht, G1), which is free from. The second electrolysis is carried out with a pM 5-6 solution and the addition of buffer additives and r, 1 × salts to the electrolyte.

Во избежание накоплени  никел  в электролите, ои удал етс  осаждеиием диметилглиоксимом, который в электролит в виде суепеизии .In order to avoid accumulation of nickel in the electrolyte, it is removed by precipitation with dimethylglyoxime, which is in the electrolyte in the form of creeping.

р-1ейтрализацн  образующейс  при это.м свободной серной кислоты производитс  добавлением щелочи, осиовиых ил: углекислых соединений НЛП гидрата окиси кобальта.The p-1 neutralization resulting from this. of free sulfuric acid is produced by the addition of alkali, axis sludge: carbonic compounds of NLP cobalt oxide hydrate.

Дл  предотвращени  растрескивани  катод -:ого осадка избыток д :метилглиоксима удал етс  обработкой электролита активированным углел5.In order to prevent cracking of the cathode -: th precipitate, excess g: methylglyoxime is removed by treating the electrolyte with activated carbon 5.

Осадок диметилглиоксима никел  регенерируетс  обработкой его дес ти-п тнадиати процентной серной кислотой при нагревании и при перелшщивани: . При этом получаетс  свободный диметилглиоксим, возвра1цающн1 с  в производство, и чистый сернокислый никель, из которого Электролизом получаетс  химически чистый никель.The dimethylglyoxime nickel precipitate is regenerated by treating its ten-pnadiaty with percentage sulfuric acid when heated and under refluxing:. This produces free dimethylglyoxime, returning to production, and pure nickel sulphate, from which electrolysis produces chemically pure nickel.

ДСо 73173- 2 Предмет изобретени DSo 73173-2 Subject of the invention

Claims (3)

1.Способ двухстз/пенчатого электролитического разделени  кобальта от никел , отличающийс  тем, что сначала процесс ведут с нерастворимы .м анодом, а затем полученный катодный металл использугот как анод.1. A two-stage / foam electrolytic separation of cobalt from nickel, characterized in that the process is first carried out with an insoluble in the anode, and then the resulting cathode metal is used as the anode. 2.Прием осуществлени  способа по п. 1, отличающийс  тем, что накопл ющийс  во второй стадии никель удал ют диметилглиоксимом, аводимым в избытке.2. A process according to claim 1, characterized in that the nickel accumulated in the second stage is removed by dimethylglyoxime, which is abundant in excess. 3.Прием ,ествлени  способа поп,2 отличающийс  тем, что избыток диметилглиоксима удал ют активированным углем.3. Acceptance method pop 2 characterized in that the excess dimethylglyoxime is removed with activated carbon.
SU304532A 1941-02-04 1941-02-04 Method of two-stage electrolytic separation of cobalt from nickel SU73173A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU304532A SU73173A1 (en) 1941-02-04 1941-02-04 Method of two-stage electrolytic separation of cobalt from nickel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU304532A SU73173A1 (en) 1941-02-04 1941-02-04 Method of two-stage electrolytic separation of cobalt from nickel

Publications (1)

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SU73173A1 true SU73173A1 (en) 1947-11-30

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Country Status (1)

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