SU589290A1 - Plate cathode for electrolytic preparation of metallic powders - Google Patents
Plate cathode for electrolytic preparation of metallic powdersInfo
- Publication number
- SU589290A1 SU589290A1 SU762393315A SU2393315A SU589290A1 SU 589290 A1 SU589290 A1 SU 589290A1 SU 762393315 A SU762393315 A SU 762393315A SU 2393315 A SU2393315 A SU 2393315A SU 589290 A1 SU589290 A1 SU 589290A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cathode
- metallic powders
- electrolytic preparation
- plate cathode
- powders
- Prior art date
Links
Landscapes
- Electrolytic Production Of Metals (AREA)
Description
(54) ПЛАСТИНЧАТЫЙ КАТОД ДЛЯ ЭЛЕКТРОЛИТИЧЕСКОГО ПОЛУЧЕНИЯ МЕТАЛЛИЧЕСКИХ ПСРОШКОВ(54) PLASTIC CATHODE FOR ELECTROLYTIC OBTAINING OF METALLIC POLISHTERS
Изобретение относитс к области металлургии , в частности к оборудованию дл элек тролитического получени металлических порошков из водных растворов. Известен пластинчатый катод дл элек- тролитического получени металлических порошков из водных растворов с чередующимис токопровод шими и нетокопровод шими участками. Известный катод выполнен в ви- Йё металлической пластины, покрытой диэлектриком , причем в слое диэлектрика равномер :но распределены точечные токопровод щие участки, соединенные с пластиной и установленные заподлицо с диэлектриком ij. Недостатком извс ртного катода вл етс сложность его изготовлени и невозможность получени порошков с ладанными свойствами Цель изобретени - упрощение изготовлени катода и обеспечение возможности получени порошков с заданным гранулометрическим составом, насыпным весом и текучестью . Дл этого катод выполнен в виде электропроводной сетки, чейки которой заполнены гидрофобным, химически стойким в электролите полимерным материалом. На чертеже изображено предлагаемое устройство . Катод включает штангу - токоподвод 1 и тело 2 катода, выполненное в виде пластины . Тело катода состоит из электропроводной Ьетки 3 и гидрофобного, химически стойкого в электролите полимерного материала 4, который заполн ет чейки сетки Д В качестве полимерного материала могут быть использованы, например, перхлорвинилс ва смола и фторопласт. Предлагаемыйкатод погружают в электролит и подключают, к источнику посто нного тока. На сетке начинаетс осаждение металла в виде высокодисперсного порошка. Гидрофобность полимерного материала 4 обеспечивает скопление пузырьков выдел ющегос при электролизе водорода на границе между металлом и диэлектриком. Пузырьки водорода преп тствуют тангенциальному росту осадка и срастанию дендритов. Укрупн ть, пузырьки отрываютс от катода, что Нриводит к осыпанию осадка.The invention relates to the field of metallurgy, in particular to equipment for the electrolytic production of metal powders from aqueous solutions. A plate cathode for electrolytic production of metal powders from aqueous solutions with alternating conductors and non-conductors is known. The known cathode is made in a VYO metal plate covered with a dielectric, and in the dielectric layer it is uniform: but the point conductive parts are connected to the plate and mounted flush with the dielectric ij. The disadvantage of an optical cathode is the difficulty of its manufacture and the impossibility of obtaining powders with scattered properties. The purpose of the invention is to simplify the manufacture of the cathode and to make it possible to obtain powders with a given granulometric composition, bulk density and flowability. For this, the cathode is made in the form of an electrically conductive grid, the cells of which are filled with a hydrophobic, chemically resistant polymer material in the electrolyte. The drawing shows the proposed device. The cathode includes a rod - current lead 1 and the body 2 of the cathode, made in the form of a plate. The cathode body consists of an electrically conducting wire 3 and a hydrophobic polymer material 4 that is chemically resistant in the electrolyte and which fills the cells of the grid. For example, perchlorovinyl resin and fluoroplast can be used as the polymer material. The proposed cathode is immersed in an electrolyte and connected to a direct current source. Metal deposition in the form of a fine powder begins on the grid. The hydrophobicity of the polymeric material 4 provides for the accumulation of bubbles of hydrogen released during electrolysis at the interface between the metal and the dielectric. Hydrogen bubbles prevent tangential growth of sediment and dendritic accretion. Enlarge, the bubbles are detached from the cathode, which causes the precipitate to fall.
Было установлено, что дисперсность полученных порошков зависит от 1троэорности сеткн 3 катода.It was found that the dispersion of the powders obtained depends on the 1-T cell ratio of the 3 cathodes.
Услови электролиза: электролит 16О г/л серной кислоты и 10 г/л медного купоросаElectrolysis conditions: electrolyte 16O g / l sulfuric acid and 10 g / l copper sulfate
(в пересчете на СИ); температура 4О С} катодна плотность тока 200О А/м .(in terms of SI); temperature 4O С} cathode current density 200O A / m.
Зависимость дисперсности порошка меди от проворности сетки 3 катода приведенаThe dependence of the dispersion of copper powder on the agility of the cathode grid 3 is given
в таблице.in the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762393315A SU589290A1 (en) | 1976-05-24 | 1976-05-24 | Plate cathode for electrolytic preparation of metallic powders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762393315A SU589290A1 (en) | 1976-05-24 | 1976-05-24 | Plate cathode for electrolytic preparation of metallic powders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU589290A1 true SU589290A1 (en) | 1978-01-25 |
Family
ID=20673055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762393315A SU589290A1 (en) | 1976-05-24 | 1976-05-24 | Plate cathode for electrolytic preparation of metallic powders |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU589290A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7378010B2 (en) | 2004-07-22 | 2008-05-27 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell |
| US7393438B2 (en) | 2004-07-22 | 2008-07-01 | Phelps Dodge Corporation | Apparatus for producing metal powder by electrowinning |
| US7452455B2 (en) | 2004-07-22 | 2008-11-18 | Phelps Dodge Corporation | System and method for producing metal powder by electrowinning |
| US7494580B2 (en) | 2003-07-28 | 2009-02-24 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
| US7736475B2 (en) | 2003-07-28 | 2010-06-15 | Freeport-Mcmoran Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
| US8273237B2 (en) | 2008-01-17 | 2012-09-25 | Freeport-Mcmoran Corporation | Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning |
-
1976
- 1976-05-24 SU SU762393315A patent/SU589290A1/en active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7494580B2 (en) | 2003-07-28 | 2009-02-24 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
| US7736475B2 (en) | 2003-07-28 | 2010-06-15 | Freeport-Mcmoran Corporation | System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction |
| US7378010B2 (en) | 2004-07-22 | 2008-05-27 | Phelps Dodge Corporation | System and method for producing copper powder by electrowinning in a flow-through electrowinning cell |
| US7393438B2 (en) | 2004-07-22 | 2008-07-01 | Phelps Dodge Corporation | Apparatus for producing metal powder by electrowinning |
| US7452455B2 (en) | 2004-07-22 | 2008-11-18 | Phelps Dodge Corporation | System and method for producing metal powder by electrowinning |
| US7591934B2 (en) | 2004-07-22 | 2009-09-22 | Freeport-Mcmoran Corporation | Apparatus for producing metal powder by electrowinning |
| US8273237B2 (en) | 2008-01-17 | 2012-09-25 | Freeport-Mcmoran Corporation | Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning |
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