SU129447A1 - The method of electrolytically obtaining silver powder from insoluble compounds - Google Patents

The method of electrolytically obtaining silver powder from insoluble compounds

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Publication number
SU129447A1
SU129447A1 SU639030A SU639030A SU129447A1 SU 129447 A1 SU129447 A1 SU 129447A1 SU 639030 A SU639030 A SU 639030A SU 639030 A SU639030 A SU 639030A SU 129447 A1 SU129447 A1 SU 129447A1
Authority
SU
USSR - Soviet Union
Prior art keywords
silver powder
silver
insoluble compounds
obtaining silver
insoluble
Prior art date
Application number
SU639030A
Other languages
Russian (ru)
Inventor
В.И. Семерюк
Original Assignee
В.И. Семерюк
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 В.И. Семерюк filed Critical В.И. Семерюк
Priority to SU639030A priority Critical patent/SU129447A1/en
Application granted granted Critical
Publication of SU129447A1 publication Critical patent/SU129447A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C5/00—Electrolytic production, recovery or refining of metal powders or porous metal masses
    • C25C5/02—Electrolytic production, recovery or refining of metal powders or porous metal masses from solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

Известные способы получени  порошка серебра катодным методом непроизводительны, так как, ломимо чистого серебра, имеютс  примеси окиси серебра, доход щие до 60%. Получение порошка серебра способом термического разложени  окиси серебра  вл етс  трудоемким процессом . Прокаливание окиси серебра в муфельной печи производитс  многократно и после каждого прокаливани  происходит размалывание его в специальной мельнице.The known methods for producing silver powder by the cathode method are unproductive, since, besides, pure silver, there are impurities of silver oxide, reaching up to 60%. The production of silver powder by the thermal decomposition of silver oxide is a laborious process. The calcination of silver oxide in a muffle furnace is carried out many times and after each calcination it is milled in a special mill.

Предлагаемый способ позвол ет получать чистый порошок серебра электролитическим путем из нерастворимых (Соединений, например хлористого серебра. Электролиз провод т в электролите, содержащем 5- 10%-ный раствор серной или сол ной кислоты с нерастворимыми анодами из графита или угл  при комнатной температуре и катодной плотности тока 150-50 aldAi. Катод представл ет собой пр моугольную раму из органического стекла высотой 10-20 мм с перфорированными стенками- съемными крышками-с отверсти ми 5-7 мм.The proposed method allows to obtain pure silver powder electrolytically from insoluble (Compounds such as silver chloride. Electrolysis is carried out in an electrolyte containing 5–10% solution of sulfuric or hydrochloric acid with insoluble anodes of graphite or carbon at room temperature and cathode current density 150-50 aldAi. The cathode is a rectangular organic glass frame with a height of 10-20 mm with perforated walls — removable covers — with 5-7 mm openings.

В раму загружают хлористое серебро, толщиной сло , равной высоте рамы. На (СЛОЙ хлористого серебра накладывают медную или латунную посеребренную проволочную сетку с отверсти ми 5-8 мм. На сетку накладывают одинарный слой б зи и закрывают перфорированной крышкой . Раму переворачивают, вторую сторону закрывают подобно первой и закрепл ют. Обе металлические сетки имеют выводы дл  подключени  к катодной штанге.Silver chloride is loaded into the frame, with a layer thickness equal to the height of the frame. On (LAYER of silver chloride impose a copper or brass silver-plated wire mesh with holes of 5-8 mm. A single layer of base is applied to the grid and closed with a perforated cover. The frame is turned over, the other side is covered like the first one and fixed. cathode rod connections.

По этому способу можно получать высокодисперсный чистый порошок серебра при скорост х процесса в 25-75 раз больших, чем при катодном восстановлении серебра из растворов.By this method, it is possible to obtain highly dispersed pure silver powder at process speeds of 25-75 times greater than with cathodic reduction of silver from solutions.

Л 129447- 2 Предмет изобретени L 129447- 2 The subject invention

Claims (2)

1.Способ электролктичаладго получени  порошка серебра из нерастворимых соединений, отличающийс  тем, что, с целью получени  высокодисперсного чистого серебр ного порошка и ускорени  процесса, хлористое серебро загружаетс  между двум  посеребренными латунными или Медными сетками в специальную раму из пластмассы, закрывающуюс  диафрагмами из хлопчатобумажной ткани и крышками с отверсти ми , и катодно обрабатываетс  в растворе серной или сол ной кислоты при комнатной температуре и плотности тока 150-50 а1дм.1. Electrolytic method for obtaining silver powder from insoluble compounds, characterized in that, in order to obtain highly dispersed pure silver powder and process acceleration, silver chloride is loaded between two silver-plated brass or Copper meshes with plastic diaphragms of cotton fabric and lids with holes, and cathodically treated in a solution of sulfuric or hydrochloric acid at room temperature and a current density of 150-50 a1 dm. 2.Способ поп. 1, о тл и ч а ю ЩИ йiC   тем, что примен ют нерастворимые аноды из графита или угл .2. Method pop. 1, about tl and ch and thi IC by the fact that insoluble anodes from graphite or coal are used.
SU639030A 1959-09-15 1959-09-15 The method of electrolytically obtaining silver powder from insoluble compounds SU129447A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU639030A SU129447A1 (en) 1959-09-15 1959-09-15 The method of electrolytically obtaining silver powder from insoluble compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU639030A SU129447A1 (en) 1959-09-15 1959-09-15 The method of electrolytically obtaining silver powder from insoluble compounds

Publications (1)

Publication Number Publication Date
SU129447A1 true SU129447A1 (en) 1959-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU639030A SU129447A1 (en) 1959-09-15 1959-09-15 The method of electrolytically obtaining silver powder from insoluble compounds

Country Status (1)

Country Link
SU (1) SU129447A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836436A (en) * 1971-07-31 1974-09-17 Snam Progetti Process for the electrochemical manufacture of silver containing catalysts
RU2720189C1 (en) * 2019-07-01 2020-04-27 Юрий Васильевич Тарасов Method of producing fine silver powder in nitrate electrolyte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836436A (en) * 1971-07-31 1974-09-17 Snam Progetti Process for the electrochemical manufacture of silver containing catalysts
RU2720189C1 (en) * 2019-07-01 2020-04-27 Юрий Васильевич Тарасов Method of producing fine silver powder in nitrate electrolyte
WO2021002774A1 (en) * 2019-07-01 2021-01-07 Юрий Васильевич ТАРАСОВ Method of producing a finely dispersed powder of silver in a nitrate electrolyte

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