SU715900A1 - Copper powder drying method - Google Patents
Copper powder drying method Download PDFInfo
- 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
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- drying
- copper powder
- powder
- drying method
- benzotriazole
- Prior art date
Links
Landscapes
- Drying Of Solid Materials (AREA)
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782564369A SU715900A1 (en) | 1978-01-05 | 1978-01-05 | Copper powder drying method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782564369A SU715900A1 (en) | 1978-01-05 | 1978-01-05 | Copper powder drying method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU715900A1 true SU715900A1 (en) | 1980-02-15 |
Family
ID=20742183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782564369A SU715900A1 (en) | 1978-01-05 | 1978-01-05 | Copper powder drying method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU715900A1 (en) |
Cited By (7)
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 |
-
1978
- 1978-01-05 SU SU782564369A patent/SU715900A1/en active
Cited By (9)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU715900A1 (en) | Copper powder drying method | |
JPH0582324B2 (en) | ||
JPH0710955B2 (en) | How to remove extractables from carbon | |
SE7415881L (en) | ||
KR830005059A (en) | Glass batch pellet manufacturing method of multilayer structure | |
KR860006215A (en) | Process for producing dry α grains | |
ATE72942T1 (en) | PROCESS FOR PRODUCTION OF DRIED PASTA. | |
ES462754A1 (en) | Fluidized bed drying process for porous materials | |
US3492244A (en) | Method for the production of coke | |
US3791994A (en) | Method of producing adsorption coke from high water content brown coal | |
JPS61151012A (en) | Method of activating carbide | |
US2894914A (en) | Manufacture of active carbon from anthracite coal | |
ES548778A0 (en) | PROCEDURE OF CAPTURE BY SEMI-SECTION OF POLLUTIONANTS CONTAINED IN SMOKE | |
GB1482901A (en) | Process and apparatus for the utilization of sulphur compounds contained in gases containing oxygen and a high water vapour content | |
Leon et al. | Enlargement of the micropores of a caking bituminous coal by controlled oxidation | |
US2861028A (en) | Production of coke | |
US1506537A (en) | Process of purifying graphite | |
GB1447450A (en) | Metallgesellschaft ag process and apparatus for dehydrating gas with sulphuric acid | |
Ueda et al. | Electron spin resonance studies of the reaction of gases with the radicals formed in irradiated polytetrafluoroethylene | |
SU602521A1 (en) | Method of clarifying rosin and its derivatives | |
JPS521097A (en) | Dryer for tobacco leaves | |
US1343249A (en) | Treating ores | |
SU727699A1 (en) | Method of agglomeration charge heating | |
SU939915A1 (en) | Method of drying induction furnace lining | |
SU931743A1 (en) | Method for drying powder sugar |