SU829182A1 - Method of recovering ferro-alloys from metallurgical slags - Google Patents
Method of recovering ferro-alloys from metallurgical slags Download PDFInfo
- Publication number
- SU829182A1 SU829182A1 SU792800716A SU2800716A SU829182A1 SU 829182 A1 SU829182 A1 SU 829182A1 SU 792800716 A SU792800716 A SU 792800716A SU 2800716 A SU2800716 A SU 2800716A SU 829182 A1 SU829182 A1 SU 829182A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- slag
- ferrochrome
- extraction
- curie point
- ferroalloys
- Prior art date
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- Manufacture And Refinement Of Metals (AREA)
Description
(54) СПОСОБ ИЗВЛЕЧЕНИЯ ФЕРРОСПЛАВОВ ИЗ МЕТАЛЛУРГИЧЕСКИХ ШЛАКОВ(54) METHOD FOR EXTRACTING FERROALLOYES FROM METALLURGICAL SLAGS
Изобретение относитс к магнитным способам извлечени ценных компонентов из немагнитных материалов и может быть использовано в металлургической промышленности дл извлечени ферросплавов на основе хрома или марганца из металлургических шлаков.The invention relates to magnetic methods for extracting valuable components from non-magnetic materials and can be used in the metallurgical industry for the recovery of chromium or manganese-based ferroalloys from metallurgical slags.
Известен способ магнитного разделени ферромагнитных материалов, включаюш,ий нагрев смеси до температуры, при которой один из компонентов тер ет свои магнитные свойства, и магнитную сепарацию 1.A known method of magnetic separation of ferromagnetic materials, including heating the mixture to a temperature at which one of the components loses its magnetic properties, and magnetic separation 1.
Недостатком этого способа вл етс то, что он не подходит дЛ извлечени ферросплавов на основе хрома или марганца, так. как. при их нагревании не происходит качественных изменений магнитной восприимчивости .The disadvantage of this method is that it is not suitable for the extraction of ferroalloys based on chromium or manganese, as well. as. when heated, there are no qualitative changes in the magnetic susceptibility.
Наиболее близким к предлагаемому по .технической суш.ности и достигаемым результатам вл етс способ разделени ферромагнитных материалов, включаюш,ий измельчение шлака, охлаждение и магнитную сепарацию 2.The closest to the technical sushi proposed and achieved results is the method of separation of ferromagnetic materials, including slag grinding, cooling and magnetic separation 2.
Недостатком известного способа вл етс то, что он может быть применен лишь дл извлечени компонентов, имеющих рко выраженные ферромагнитные свойства при комнатной температуре.A disadvantage of the known method is that it can only be used to extract components that have pronounced ferromagnetic properties at room temperature.
Цель изобретени - обеспечение извлечени сплавов с точкой Кюри, лежашей в области отрицательных температур.The purpose of the invention is to provide the extraction of alloys with the Curie point lying in the region of negative temperatures.
Цель достигаетс тем, что охлаждение производ т до температуры ниже точки Кюри извлекаемого сплава.The goal is achieved by cooling to a temperature below the Curie point of the extracted alloy.
Способ заключаетс в следующем.The method is as follows.
Измельченный до крупности О-3 мм металлургический шлак до температуры ниже точки Кюри извлекаемого сплава. При этом извлекаемый компонент переходит из парамагнитного в ферромагнитное состо ние и его магнитна восприимчивость возрастает. Магнитные свойства матрицы металлургического шлака при охлаждении практически не измен ютс . Ферросплав, наход щий с в ферромагнитном состо нии, извлекаетс из охлажденного шлака с помощью магнитного разделени .The metallurgical slag crushed to the size of O-3 mm to a temperature below the Curie point of the extracted alloy. In this case, the extracted component goes from the paramagnetic to the ferromagnetic state and its magnetic susceptibility increases. The magnetic properties of the metallurgical slag matrix are virtually unchanged upon cooling. The ferroalloy, which is ferromagnetic, is recovered from the cooled slag by magnetic separation.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792800716A SU829182A1 (en) | 1979-07-23 | 1979-07-23 | Method of recovering ferro-alloys from metallurgical slags |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792800716A SU829182A1 (en) | 1979-07-23 | 1979-07-23 | Method of recovering ferro-alloys from metallurgical slags |
Publications (1)
Publication Number | Publication Date |
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SU829182A1 true SU829182A1 (en) | 1981-05-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792800716A SU829182A1 (en) | 1979-07-23 | 1979-07-23 | Method of recovering ferro-alloys from metallurgical slags |
Country Status (1)
Country | Link |
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SU (1) | SU829182A1 (en) |
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1979
- 1979-07-23 SU SU792800716A patent/SU829182A1/en active
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