SU429112A1 - METHOD OF PROCESSING OF WASTES OF HARD ALLOYS BY ANODIC DISSOLUTION - Google Patents
METHOD OF PROCESSING OF WASTES OF HARD ALLOYS BY ANODIC DISSOLUTIONInfo
- Publication number
- SU429112A1 SU429112A1 SU1858719A SU1858719A SU429112A1 SU 429112 A1 SU429112 A1 SU 429112A1 SU 1858719 A SU1858719 A SU 1858719A SU 1858719 A SU1858719 A SU 1858719A SU 429112 A1 SU429112 A1 SU 429112A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- processing
- wastes
- anodic dissolution
- hard alloys
- anodic
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Description
ГR
Изобретение отно-ситс к способам переработки отходов твердых сплавов, состо щих из карбида вольфрама и кобальта, широко примен ющихс дл изготовлени режущих инструментов и других изделий.The invention relates to methods for processing wastes of hard alloys consisting of tungsten carbide and cobalt, widely used for the manufacture of cutting tools and other products.
Известен способ переработки отходов твердых сплавов анодным растворением в электролите , содержащем азотную кислоту и аммонийную соль. Однако известный способ характеризуетс тонажностью производства и невысокой скоростью растворени .There is a method of recycling solid alloys by anodic dissolution in an electrolyte containing nitric acid and ammonium salt. However, the known method is characterized by tonnage of production and a low dissolution rate.
Цель изобретени - разделить вольфрамокобальтовые сплавы и увеличить производительность процесса.The purpose of the invention is to separate tungsten-cobalt alloys and increase the productivity of the process.
Дл этого анодное растворение предлагаетс проводить в электролите, содержащем 150-200 г/л азотной кислоты, 50-75 г/л фтористого аммони , 60-75 г/л глицерина, и процесс провод т при анодной и катодной плотности тока 100-120 а/дм напр жении 10- 12 в и температуре 25-35°С.For this, anodic dissolution is proposed to be carried out in an electrolyte containing 150-200 g / l of nitric acid, 50-75 g / l of ammonium fluoride, 60-75 g / l of glycerin, and the process is carried out at an anodic and cathodic current density of 100-120 a / dm of voltage 10–12 V and a temperature of 25–35 ° C.
Пример. Сплав карбида вольфрама с кобальтом ВК-8 подвергают анодному растворе2Example. Tungsten carbide alloy with cobalt VK-8 is subjected to an anodic solution2
нию в электролите состава: 160 г/л азотной кислоты, 60 г/л фтористого аммони , 60 г/л глицерина, остальное вода. Процесс провод т при плотности переменного тока 100 а/дм, напр жении 10 вольт, температуре 30°С. При этом скорость растворени 73 г/дм суммарной площади электродов, выход по току 85%.in the electrolyte composition: 160 g / l of nitric acid, 60 g / l of ammonium fluoride, 60 g / l of glycerin, the rest is water. The process is carried out at an ac current density of 100 A / dm, a voltage of 10 volts, and a temperature of 30 ° C. At the same time, the dissolution rate is 73 g / dm of the total area of the electrodes, the current efficiency is 85%.
Предмет изобретени Subject invention
10ten
Способ переработки отходов твердых сплавов анодцым растворением в электролите, содержащем азотную кислоту и аммонийную соль, отличающийс тем, что, с цельюA method of processing solid alloy waste by anodic dissolution in an electrolyte containing nitric acid and ammonium salt, characterized in that
разделени вольфрамо-кобальтовых сплавов и увеличени производительности процесса, анодное растворение осуществл ют в электролите , содержащем 150-200 г/л азотной кислоты; 50-75 г/л фтористого аммони ; 60-separating tungsten-cobalt alloys and increasing the productivity of the process; anodic dissolution is carried out in an electrolyte containing 150-200 g / l of nitric acid; 50-75 g / l of ammonium fluoride; 60-
75 г/л глицерина, и процесс провод т при анодной и катодной плотности тока 100- 120 а/дм, напр жении 10-12 вольт и температуре 25-35°С.75 g / l of glycerin, and the process is carried out at an anodic and cathodic current density of 100-120 a / dm, a voltage of 10-12 volts and a temperature of 25-35 ° C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1858719A SU429112A1 (en) | 1972-12-19 | 1972-12-19 | METHOD OF PROCESSING OF WASTES OF HARD ALLOYS BY ANODIC DISSOLUTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1858719A SU429112A1 (en) | 1972-12-19 | 1972-12-19 | METHOD OF PROCESSING OF WASTES OF HARD ALLOYS BY ANODIC DISSOLUTION |
Publications (1)
Publication Number | Publication Date |
---|---|
SU429112A1 true SU429112A1 (en) | 1974-05-25 |
Family
ID=20535512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1858719A SU429112A1 (en) | 1972-12-19 | 1972-12-19 | METHOD OF PROCESSING OF WASTES OF HARD ALLOYS BY ANODIC DISSOLUTION |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU429112A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102808086A (en) * | 2012-08-31 | 2012-12-05 | 北京工业大学 | Method for preparing ultrafine tungsten oxide nanopowder by recovering waste hard alloy with hydrothermal method |
-
1972
- 1972-12-19 SU SU1858719A patent/SU429112A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102808086A (en) * | 2012-08-31 | 2012-12-05 | 北京工业大学 | Method for preparing ultrafine tungsten oxide nanopowder by recovering waste hard alloy with hydrothermal method |
CN102808086B (en) * | 2012-08-31 | 2014-07-16 | 北京工业大学 | Method for preparing ultrafine tungsten oxide nanopowder by recovering waste hard alloy with hydrothermal method |
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