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Reducer synthetic carbon for smelting metallic silicon and producing method thereof

A technology for synthesizing carbon and reducing agents, which is applied in the direction of silicon compounds, non-metal elements, chemical instruments and methods, etc., can solve the problems of wood consumption, and achieve the effects of energy saving, low ash content, and good air permeability

Inactive Publication Date: 2009-05-20
李岱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method does not use charcoal, it also needs to use wood blocks as a loosening agent, and still consumes a part of wood. From the perspective of protecting forest resources, this method is still insufficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 This embodiment and following embodiment all are to produce 1000 kilograms of synthetic carbons

[0038] 100kg rice husk, 900kg petroleum coke

[0039] Crush the petroleum coke into 0-10mm particles, mix it with the rice husk, stir evenly, and extrude it with the NYC-2 rod making machine designed and manufactured by Tsinghua University Machinery Factory, with a working pressure of 100-120 kg / square centimeters to obtain a synthetic carbon rod.

Embodiment 2

[0041] 300 kilograms of rice husks, 700 kilograms of petroleum coke are made synthetic carbon by the method for embodiment 1.

Embodiment 3

[0043] 500 kilograms of rice husks, 500 kilograms of petroleum coke are made synthetic carbon by the method for embodiment 1.

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PUM

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Abstract

The invention relates to synthetic carbon for smelting metallic silicon reducers and a production method thereof, wherein, the synthetic carbon contains 10 to 90 percent of refinery coke and 90 to 10 percent of rice hull according to weight percentage, which are mixed, evenly stirred and then extruded for extrusion forming by an extruder under the working pressure of 100 to 120 kilograms per square centimeter. The usage of the synthetic carbon has the beneficial effects of avoiding using charcoal, being beneficial to the protection of forest resources, saving electrical energy, having high purity of the prepared metallic silicon, saving the usage amount of the silica, reducing the thermal loss, relieving the labor intensity of workers and changing the rice hull into valuables.

Description

technical field [0001] The invention relates to a reducing agent for smelting metallic silicon, in particular to a reducing agent for smelting metallic silicon made of rice husk and petroleum coke—synthetic carbon and a preparation method thereof. Background technique [0002] With the development of modern science and technology, the demand for metal silicon is increasing day by day. The traditional smelting of metal silicon uses charcoal and a small amount of petroleum coke as reducing agents. The production of 1 ton of metal silicon requires 1.5-2 tons of charcoal, and the production of 1 ton of charcoal consumes 4 tons of miscellaneous wood. It takes 6-8 tons of wood to produce 1 ton of silicon metal, which consumes a lot of forest resources and causes damage to the ecological environment. For a long time, people have been exploring the method of smelting metal silicon without charcoal, and looking for reducing agents that can replace charcoal to smelt metal silicon. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/025
Inventor 李岱
Owner 李岱