SU368313A1 - A METHOD OF OBTAINING AN IRRADICAL CHROMIUM - Google Patents

A METHOD OF OBTAINING AN IRRADICAL CHROMIUM

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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
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SU
USSR - Soviet Union
Prior art keywords
chromium
obtaining
mixture
irradical
iron
Prior art date
Application number
SU1458838A
Other languages
Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1458838A priority Critical patent/SU368313A1/en
Application granted granted Critical
Publication of SU368313A1 publication Critical patent/SU368313A1/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • 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.

SU1458838A 1970-06-30 1970-06-30 A METHOD OF OBTAINING AN IRRADICAL CHROMIUM SU368313A1 (en)

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

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Country Status (1)

Country Link
SU (1) SU368313A1 (en)

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