SU368313A1 - A METHOD OF OBTAINING AN IRRADICAL CHROMIUM - Google Patents
A METHOD OF OBTAINING AN IRRADICAL CHROMIUMInfo
- Publication number
- SU368313A1 SU368313A1 SU1458838A SU1458838A SU368313A1 SU 368313 A1 SU368313 A1 SU 368313A1 SU 1458838 A SU1458838 A SU 1458838A SU 1458838 A SU1458838 A SU 1458838A SU 368313 A1 SU368313 A1 SU 368313A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chromium
- obtaining
- mixture
- irradical
- iron
- 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)
Description
1one
Изобретение относитс к области металлургии , в частности к производству ферросплавов.The invention relates to the field of metallurgy, in particular to the production of ferroalloys.
Известен способ получени безжелезистого хромового концентрата, заключающийс в том, что смесь тонко измельченных частиц хромита и угл нанос т на зерна кварца или кокса и нагревают ее до 1000°С, а затем гор чую шихту помещают в вертикальную шахту, через которую пропускают хлор. Пары хлоридов избирательно конденсируют в кварцевых трубках.A known method for producing iron-free chromium concentrate is that the mixture of finely divided particles of chromite and coal is applied to the grains of quartz or coke and heated to 1000 ° C, and then the hot mixture is placed in a vertical shaft through which chlorine is passed. Chloride vapors selectively condense in quartz tubes.
Однако этот способ не обеспечивает достаточной степени отделени железа от хрома и характеризуетс низким выходом концентрата.However, this method does not provide a sufficient degree of separation of iron from chromium and is characterized by a low concentrate yield.
С целью устранени указанных недостатков и более полного отделени железа от хрома предложено хлорированию подвергать измельченную до крупности менее 0,1 мм шихту, состо щую из хромовой руды и восстановител , вз тых в соотношении 100: (2-3) при температуре 700-900°С, скорости газового потока в разгрузочной части аппарата не менее 9 см/сек и времени пребывани шихты в зоне хлорировани не менее 10 час.In order to eliminate these drawbacks and more completely separate iron from chromium, it was proposed to chlorineize to subject the mixture crushed to a particle size of less than 0.1 mm, consisting of chromium ore and a reducing agent, taken in a ratio of 100: (2-3) at a temperature of 700-900 ° C, the gas flow velocity in the discharge part of the apparatus is at least 9 cm / sec and the residence time of the charge in the chlorination zone is at least 10 hours.
Дл создани направленного газового потока , обеспечнваюш,его отдув паро-газовой смеси , содержащей хлориды л елеза, в хлоратор ввод т азот.To create a directional gas stream, ensure that it is blown out of a vapor-gas mixture containing chlorides of a gas, and nitrogen is introduced into the chlorinator.
Пример. Во вращающемс хлораторе проведено опытное хлорирование шихты, состо щей из 100 ч. хромовой руды и от 2 до 3,5 частей каменного угл . Шихта приготовлена путем совместного измельчени навески руды и угл в шаровой мельнице до крупности менее 0,1 мм. Хлорированию подвергали около 100 т щихты, содержащей 9-10% железа. Из указанного количества шихты получено 85 г концентрата с содержанием железа менее 0,2%.Example. Experimental chlorination of the charge consisting of 100 parts of chrome ore and from 2 to 3.5 parts of coal was carried out in a rotating chlorinator. The mixture was prepared by co-grinding a portion of ore and coal in a ball mill to a particle size of less than 0.1 mm. About 100 tons of binder containing 9–10% iron were chlorinated. 85 g of concentrate with an iron content of less than 0.2% was obtained from the specified amount of the mixture.
Предмет изобретени Subject invention
1515
Способ получени безжелезистого хромового концентрата путем высокотемпературного хлорировани хромовой ру.ды в смеси с углеродистым восстановителем, отличающийс тем, что, с целью более полного отделени железа от хрома, хлорированию подвергают излельченную до крупности менее 0,1 мм шихту , компоненты которой вз ты соответственноThe method of obtaining iron-free chromium concentrate by high-temperature chlorination of chromium oxide in a mixture with a carbonaceous reducing agent, characterized in that, in order to more completely separate iron from chromium, the mixture is reduced to a particle size less than 0.1 mm, the components of which are taken respectively
в соотношении 100: (2-3), при скорости газового потока в разгрузочной части аппарата не менее 9 см/сек н времени выдерл ки шихты в зоне хлорировани не менее 10 {ас.in the ratio of 100: (2-3), when the gas flow rate in the discharge part of the apparatus is not less than 9 cm / sec and the time of charge extraction in the chlorination zone is not less than 10 {ac.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1458838A SU368313A1 (en) | 1970-06-30 | 1970-06-30 | A METHOD OF OBTAINING AN IRRADICAL CHROMIUM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1458838A SU368313A1 (en) | 1970-06-30 | 1970-06-30 | A METHOD OF OBTAINING AN IRRADICAL CHROMIUM |
Publications (1)
Publication Number | Publication Date |
---|---|
SU368313A1 true SU368313A1 (en) | 1973-01-26 |
Family
ID=20455169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1458838A SU368313A1 (en) | 1970-06-30 | 1970-06-30 | A METHOD OF OBTAINING AN IRRADICAL CHROMIUM |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU368313A1 (en) |
-
1970
- 1970-06-30 SU SU1458838A patent/SU368313A1/en active
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