FIELD: metallurgy.
SUBSTANCE: invention relates to the field of metallurgy, namely, to obtaining of copper powders. The method of obtaining of the copper electrolytic powder with the maximum oxygen content 0.15% comprises electrolysis, scrubbing from electrolyte, stabilisation, flushing from excessive stabilising agent, drying, milling and sieving. The powder is flushed from electrolyte with a solution of sodium hydroxide with pH level from 7.5 up to 8.5, and stabilisation - solutions of stabilising agents with pH level from 10.0 up to 11.0 with addition of sodium hydroxide, and flushing from excess stabilising agent - solution of sodium hydroxide with pH level from 7.5 up to 8.5.
EFFECT: obtaining of electrolytic microatomised copper powder with the fraction below 100 microns with the oxygen contents no more than 0,15%.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING COPPER ULTRAFINE ELECTROLYTIC POWDER | 2019 |
|
RU2736108C1 |
| METHOD OF SILICIUM TETRAFLUORIDE PRODUCTION, METHOD OF SEPARATION OF SILICIUM TETRAFLUORIDE FROM OXYGEN AND HIGH-VOLATILE FLUORIDE IMPURITIES, METHOD OF PRODUCTION OF SLICIUM POWDER FROM SILICIUM TETRAFLUORIDE | 2003 |
|
RU2324648C2 |
| METHOD OF PRODUCING AQUEOUS PASTE OF NICKEL HYDROXIDE | 2015 |
|
RU2583373C1 |
| METHOD OF PRODUCING COPPER NANOPOWDER | 2015 |
|
RU2585582C1 |
| METHOD FOR MANUFACTURING COPPER ELECTROLYTIC POWDER | 2014 |
|
RU2574185C1 |
| ELECTROWINNING METHOD OF COPPER FROM SULPHATE ELECTROLYTES | 2018 |
|
RU2690329C1 |
| PROCESS OF PRODUCTION OF HIGH-DISPERSIVE IRON POWDERS AND OF IRON ALLOYS | 1991 |
|
RU2022060C1 |
| METHOD FOR PROCESSING LITHIUM-ION BATTERIES WITH OBTAINING POSITIVE ELECTRODE COMPONENTS OF ALKALINE BATTERIES | 2022 |
|
RU2789852C1 |
| METHOD OF SEPARATION OF SILICON POWDER FLUORIDE SALTS OF ALKALINE METALS AND PLANT FOR REALIZATION OF THIS METHOD | 2006 |
|
RU2321538C2 |
| METHOD FOR PRODUCTION OF MICROFIBRILLARY PECTIN-CONTAINING CELLULOSE FIBRES | 2011 |
|
RU2501325C2 |
