Method for preparing ferrotitanium and silicon ferrotitanium using high magnesium and low titanium concentrate
An ilmenite concentrate and high-magnesium technology, applied in the field of metallurgy, can solve the problems of low grade of titanium dioxide, low titanic yield rate, low titanium recovery rate, etc., and achieve the effects of promoting titaniferous sedimentation, improving recovery rate and reducing energy consumption
Inactive Publication Date: 2010-04-07
梅卫东
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When producing low ferrotitanium by the aluminothermic method outside the furnace, due to the high content of magnesium oxide, the melting point of the reaction slag is high, the fluidity of the slag is poor, the iron inclusion in the slag is serious, and the yield of ferrotitanium is low; , the total amount of titanium in the reaction material is small, so that the recovery rate of titanium is low
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0024] Take 200Kg Panzhihua high-magnesium and low-titanium concentrate, calculate the corresponding dosage of aluminum powder, lime, ferrosilicon, iron ore and compound heating agent, mix titanium concentrate, aluminum powder, lime, 2 / 3 of ferrosilicon, 2 / 3 of the iron ore is mixed with a mixer and heated to 350°C. Take out the heating material from the heating furnace, then add the compound heating agent, and mix it with a mixer for 10 minutes to become the reaction material. Ferrosilicon and iron ore not added to the reaction material are mixed to form sedimentation material. The reaction material is put into the heat-insulating material barrel, and the material barrel is placed on the smelting furnace. Take 50Kg of the reaction material and put it in the furnace as the base material, ignite the base material with an igniter, and after forming a molten pool, open the material barrel to discharge the material. After the material is added, add the sedimentation material. ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for preparing ferrotitanium and ferro-silico-titanium by using high-magnesian low- titanium finished ore. It comprises following steps: (1) preparing reacting material,(2) smelting according to thermit method, (3) discharging ferrotitanium liquid after smelting, ingoting and getting ferrotitanium, (4) adding ferrosilicium, smelting slag inside furnance for the second time, (5) discharging all liquid after smelting, ingoting and getting ferro-silico-titanium. The invention employs composite exothermic compound to increase reaction heat, keep slag temperature topromote ferrotitanium sedimentation, and solves problems of high content of magnesium oxide, high fusing poing for slag, big viscosity, difficult sedimentation for ferrotitanium and low ferrotitaniumproductivity. The invention can recover ferro-silico-titanium from ferrotitanium fine powder and non- reduced lower titanium oxidant to increase titanium recovering rate; the two smelting are carriedout in a same furnance, which increases furnace availability factor, high- temperature slag is smelt directly and the heat of slag can be used to reduce ferro-silico-titanium smelting energy consumption.
Description
[0001] The invention belongs to the field of metallurgy, in particular to a method for producing ferro-titanium and ferrosilicon-titanium by secondary smelting of high-magnesium and low-titanium concentrate. technical background [0002] The ferro-titanium produced from titanium concentrate is generally produced by the thermite method outside the furnace, and the reaction furnace is used for one furnace. Since there is no external heat source, the requirement for raw materials is that the grade of titanium dioxide in the titanium concentrate should be 48%-52%. The content of magnesium oxide is less than 0.5%. [0003] Panzhihua vanadium-titanium magnetite is a paragenetic rock ore, and the titanium dioxide content in the selected titanium concentrate is about 47%, and the magnesium oxide content is as high as 4.5%. When producing low ferrotitanium by the aluminothermic method outside the furnace, due to the high content of magnesium oxide, the melting point of the reaction sla...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22B5/04
CPCY02P10/20
Inventor 梅卫东
Owner 梅卫东