SU715900A1 - Copper powder drying method - Google Patents

Copper powder drying method Download PDF

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Publication number
SU715900A1
SU715900A1 SU782564369A SU2564369A SU715900A1 SU 715900 A1 SU715900 A1 SU 715900A1 SU 782564369 A SU782564369 A SU 782564369A SU 2564369 A SU2564369 A SU 2564369A SU 715900 A1 SU715900 A1 SU 715900A1
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SU
USSR - Soviet Union
Prior art keywords
drying
copper powder
powder
drying method
benzotriazole
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Application number
SU782564369A
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Russian (ru)
Inventor
Борис Николаевич Смирнов
Людмила Борисовна Щербакова
Раиса Степановна Щеглова
Сергей Александрович Котлячков
Леонид Германович Каменецкий
Алексей Васильевич Помосов
Елена Николаевна Смирнова
Original Assignee
Уральский Научно-Исследовательский И Проектный Институт Медной Промышленности
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Priority to SU782564369A priority Critical patent/SU715900A1/en
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Publication of SU715900A1 publication Critical patent/SU715900A1/en

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Description

(54) СПОСОБ СУ11ЖИ МЕДНЫХ ПОРОШКОВ(54) METHOD OF SU11JI COPPER POWDERS

1one

Изобретение может примен тьс  в металлургической прсмыишенности. .The invention can be applied in metallurgy. .

Известны способы сушки порошков в среде, содержащей инертный газ 1 Known methods of drying powders in an environment containing inert gas 1

Наиболее близким к изобретению по технической сущности  вл етс  способ сушки медных порошков в газовой среде 2.. The closest to the invention to the technical essence is the method of drying copper powders in a gaseous environment 2 ..

Недостатком известных способов  вл етс  то, что медный порошок пос ле сушки очень легко окисл етс  на воздухе.A disadvantage of the known methods is that the copper powder after drying is very easily oxidized in air.

Цель изобретени  - улучшение качества сушки. Это достигаетс  тем, что по предлагаемому способу в газовую среду добавл ют пары стабилизатора , скорость адсорбции которых на медном порошке выгае скорости его окислени , а процесс ведут при 100ЗБО С . The purpose of the invention is to improve the quality of drying. This is achieved by the fact that according to the proposed method, stabilizer vapors are added to the gaseous medium, the adsorption rate of which on the copper powder leads to its oxidation rate, and the process is carried out at 100 ° C.

В качестве стабилизатора примен ют бензотриазол. Сущность способа заключаетс  в том, что воздух нагревают до 100- (ниже сушка идет медленно , выше .250С происходит частичное окисление Порошка), обогащают парами бензотриазола и подают смесь на высухиивание медного порошка. Пары бензотриазола, адсорбиру сь на поверхности порошка, предохран ют его от окислени  в изменени  свойств.Benzotriazole is used as a stabilizer. The essence of the method is that the air is heated to 100 (below the drying is slow, above the partial oxidation of the Powder occurs), enrich with benzotriazole vapor and feed the mixture to dry the copper powder. Benzotriazole vapor, adsorbed on the surface of the powder, prevents it from oxidizing into changes in properties.

Пример. Медный порошок с остаточной влажность 0 15% сушат гор чим воздухом в присутствии бензотриазола в сушильной печи кип щего сло . Процесс обогащени  осуществл ют следующим образом. Воздух, нагретый до 200°С, проход  через сосуд с па0 рами бензотриазола, обогащаетс  им (5%) и поступает в сушильную камеру. Влажный порошок в камере продуваетс  снизу смесью воздуха с парами стабилизатора , быстро высыхает, приобретает Example. Copper powder with a residual moisture content of 0–15% is dried with hot air in the presence of benzotriazole in a fluidized bed drying oven. The enrichment process is carried out as follows. The air heated to 200 ° C, the passage through the vessel with benzotriazole vapor, is enriched with it (5%) and enters the drying chamber. The wet powder in the chamber is blown underneath by a mixture of air with stabilizer vapors, dries quickly, acquires

5 розовый цвет и удал етс  из зоны сушки . Высушенный порошок в течение длительного времени сохран ет все рабочие свойства (удельна  поверхность, насыпной вес, текучесть, химический состав и др.).5 pink color and removed from the drying zone. Dried powder for a long time retains all the working properties (specific surface, bulk density, fluidity, chemical composition, etc.).

00

Применение предлагаемого способа позвол ет совместить сушку и стабилизацию порошка в один процесс. Скорость сушки значительно вы1г1е, чемThe application of the proposed method makes it possible to combine drying and stabilization of the powder in one process. Drying speed is significantly higher than

5 при известных способах. Присутствие воздуха в агрегате дл  сушки не ухудшает свойств порошка.5 with known methods. The presence of air in the drying unit does not impair the properties of the powder.

Claims (2)

Формула изобретени  1. Способ сушки медных порошкон,Claims 1. Method of drying copper powder, 0 полученных гидрометаллургичсским ггу571590040 received by hydrometallurgic ggu 57159004 тем,, в газовой среде, о т л и ч. а ю- Источники информации,However, in a gaseous environment, about tl and h. And yu- Sources of information, ад и и с , W6, .с дайШптЗин тые во внимание при экспертизе нй  качества сушки, в газовую средуhell and with, W6,. with daiShptZtye into account in the examination of the quality of drying, in a gaseous environment добавл ют пары стабилизатора, скорость1. Патент США № 3271873,stabilizer pairs, speed1 are added. US Patent No. 3271873, адсорбции которых на медном порошкекл. 34-5, опублик. 1963. ёШйёсКбростиегб окислени , а про- 5adsorption of which on copper powder. 34-5, published. 1963. SchöyösKbrostiegb oxidation, and about 5 цесс ведут при 100-350 С.Cess is carried out at 100-350 C. 2. Номберг М.И, Производство мед2 . Способ по п. 1, о т л и ч а ю-ного порошка электролитическим спощ и и с   тем, что в качестве ста-собом. М.,Металлурги , 1974,2. Nomberg MI, Production med2. The method according to p. 1, about tl and h of the s-th powder electrolytic with and with the fact that as a state. M., Metallurgists, 1974, билизатора примен ют бензотриазол.с. .benzotriazole. c. .
SU782564369A 1978-01-05 1978-01-05 Copper powder drying method SU715900A1 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
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
CN103132109A (en) * 2011-11-28 2013-06-05 重庆华浩冶炼有限公司 Drying and reduction technology of producing copper powder through electrolytic method

Cited By (9)

* Cited by examiner, † Cited by third party
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
CN103132109A (en) * 2011-11-28 2013-06-05 重庆华浩冶炼有限公司 Drying and reduction technology of producing copper powder through electrolytic method
CN103132109B (en) * 2011-11-28 2016-08-10 重庆有研重冶新材料有限公司 A kind of electrolysis produces the drying reducing process of copper powder

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