Method for preparing refractory material through utilizing metallurgical furnace titanium slag

A technology of metallurgical slag and refractory materials, which is applied in the field of preparation of refractory materials, can solve problems such as endangering human health, polluting the environment, and poor fluidity, and achieves the effect of solving the harm of environmental pollution

Inactive Publication Date: 2013-05-22
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses metallic slags from various industries like steel industry for making materials such as tungsten carbide (WC) or molydenum disulfonate (MoS2) powders with improved properties compared to traditional methods involving burning them at very high temperatures. These technical benefits include reduced waste generation during production processes, reduction of emissions associated with combustion products produced by these sources, recycle use of resources, lower costs due to less expensive metal content being obtained after treatment, etc., resulting in increased economic efficiency while minimizing negative impact on our environment's healthcare systems.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency and quality of producing metals by reducing dryout during metal forming operations while maintaining good mechanical properties at extreme temperatures or with minimal environmental impact.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. Titanium slag is crushed and ball milled, 650g of titanium slag powder, 250g of talc, and 100g of aluminum fluoride are taken through a 100-mesh standard sieve, and the ball is mixed until 1000g of uniform powder is used as a mixed powder for subsequent use;

[0026] b. According to the ratio of 1000g mixed powder to get 320ml of silica sol, get 320ml of silica sol; get 1.3g of potassium nitrite according to the ratio of 100ml of silica sol, get 4.16g of potassium nitrite;

[0027] c. Dissolve 4.16g of potassium nitrite in 41.6ml of water at 50-100°C, then mix with 320ml of silica sol and stir for 1-2min to make mixed solution A;

[0028] d. Inject the mixed solution A into 1000g mixed powder, and stir continuously for 10 minutes to make a slurry;

[0029] e. Inject the slurry into the mould, and let it dry naturally for 0.5h before demoulding;

[0030] f. After demoulding, the green body is dried naturally for 24 hours, heated with the furnace at an average heating...

Embodiment 2

[0032] a The titanium slag is crushed and ball milled, 9kg of titanium slag powder, 0.7kg of talc, and 0.3kg of aluminum fluoride are taken through a 100-mesh standard sieve, and the ball is mixed until 10kg of uniform powder is used as a mixed powder for subsequent use;

[0033] b. Take 450ml of silica sol for 1000g of mixed powder, and 4500ml of silica sol for 10kg of mixed powder. Get 45g of potassium nitrite according to the ratio of 100ml of silica sol to 1g of potassium nitrite;

[0034] c. Dissolve 45g of potassium nitrite in 450ml of water at 50-100°C; then mix with 4500ml of silica sol and stir for 1-2min to make mixed solution A;

[0035] d. Inject the dissolved mixed solution A into 10kg mixed powder, and stir continuously for 10 minutes to make a slurry;

[0036] e. Inject the slurry into the mold, let it dry naturally for 2 hours, and demould;

[0037] f. After demoulding, the green body is dried naturally for 36 hours, heated up with the furnace at an average h...

Embodiment 3

[0039] a. Titanium slag is crushed and ball milled, 780g of titanium slag powder, 150g of talc, and 70g of aluminum fluoride are taken through a 100-mesh standard sieve, and the ball is mixed until 1000g of uniform powder is used as a mixed powder for subsequent use;

[0040] b. According to the ratio of 1000g mixed powder to get 400ml of silica sol, get 400ml of silica sol; get 1.1g of potassium nitrite according to the ratio of 100ml of silica sol, get 4.4g of potassium nitrite;

[0041] c. Dissolve 4.4g of potassium nitrite in 44ml of water at 50-100°C, then mix with 400ml of silica sol and stir for 1-2min to make mixed solution A;

[0042] d. Inject the mixed solution A into 1000g mixed powder, and stir continuously for 10 minutes to make a slurry;

[0043] e. Inject the slurry into the mould, let it dry naturally for 1.5 hours, and demould;

[0044] f. The green body after demoulding is dried naturally for 30 hours, heated up with the furnace at an average heating rate o...

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Abstract

The invention discloses a method for preparing a refractory material through utilizing metallurgical furnace titanium slag. The method adopts the following steps of: a, crushing and ball milling titanium slag until the slag can pass through standard sieves of above 100 meshes; b, mixing the titanium slag, talc and aluminum fluoride according to a ratio, and ball mixing until the uniform powder is a mixed powder B for later use; c, adding silica sol and potassium nitrite to prepare a slurry D; and d, filling the slurry D into a mould, drying and calcinating the slurry so as to prepare the refractory material. The environmental pollution hazard of the titanium slag can be solved; and chromium with high valence can be converted into chromium with low valence through high-temperature calcinating, integral solidifying is completed, and the metallurgical furnace slag can also be comprehensively utilized.

Description

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Claims

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Application Information

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Owner LIAONING UNIVERSITY OF TECHNOLOGY
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