SU1826311A1 - Method for production of chromium carbide - Google Patents
Method for production of chromium carbideInfo
- Publication number
- SU1826311A1 SU1826311A1 SU3169486/02A SU3169486A SU1826311A1 SU 1826311 A1 SU1826311 A1 SU 1826311A1 SU 3169486/02 A SU3169486/02 A SU 3169486/02A SU 3169486 A SU3169486 A SU 3169486A SU 1826311 A1 SU1826311 A1 SU 1826311A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reducing agent
- charge
- grinding
- powder
- chromium carbide
- Prior art date
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
FIELD: metallurgy. SUBSTANCE: method for production of chromium carbide includes mixing of chromium oxide powder and carbon reducing agent, briquetting of produced mixture and charging them into ore electrothermic furnace. Melting is carried out with reducing agent-to-dichromium dioxide ratio in charge of 0.35-0.38 and correction of depth of electrode setting by reducing current load by 5-20% by loading charge with reducing agent-to-dichromium trioxide ratio of 0.33-0.345. Charge is charged into electric furnace by portion. Produced chromium carbide is ground to fraction of minus 0.4 mm with subsequent gravitation cleaning at rarefaction of 20-300 mm of water column and removal of free carbon down to concentration of 0.5%, and further grinding to minus 0.2 mm. Grinding is effected by wet milling with simultaneous classification of powder at solid-to-liquid ratio of 1:1 to 1:0 with withdrawal of free carbon to concentration less than 0.3 %. After grinding powder is treated with solution of mineral acid at solid-to-liquid ratio of 1:1 to 1:10 at 20-30 C. EFFECT: higher efficiency. 5 cl, 6 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3169486/02A SU1826311A1 (en) | 1987-05-04 | 1987-05-04 | Method for production of chromium carbide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU3169486/02A SU1826311A1 (en) | 1987-05-04 | 1987-05-04 | Method for production of chromium carbide |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1826311A1 true SU1826311A1 (en) | 1995-04-10 |
Family
ID=60541080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU3169486/02A SU1826311A1 (en) | 1987-05-04 | 1987-05-04 | Method for production of chromium carbide |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1826311A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101624289B (en) * | 2009-08-07 | 2012-04-18 | 自贡市华刚硬质合金新材料有限公司 | Production method of macrocrystalline Cr3C2 ceramic powder |
RU2543902C2 (en) * | 2013-04-23 | 2015-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" | Method of obtaining chrome carbide |
RU2558601C1 (en) * | 2014-03-17 | 2015-08-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | METHOD OF PRODUCTION OF CHROMIUM CARBIDE Cr3C2 |
-
1987
- 1987-05-04 SU SU3169486/02A patent/SU1826311A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101624289B (en) * | 2009-08-07 | 2012-04-18 | 自贡市华刚硬质合金新材料有限公司 | Production method of macrocrystalline Cr3C2 ceramic powder |
RU2543902C2 (en) * | 2013-04-23 | 2015-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" | Method of obtaining chrome carbide |
RU2558601C1 (en) * | 2014-03-17 | 2015-08-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | METHOD OF PRODUCTION OF CHROMIUM CARBIDE Cr3C2 |
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