Method for preparing ultramarine blue with coal gangue calcination

A coal gangue and calcination technology, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of mining area safety threats, great harm, and short industrial chain, so as to meet the needs of the domestic market and promote product upgrades The effect of upgrading and increasing export earning capacity

Inactive Publication Date: 2008-12-10
大同市晟威矸石有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, most enterprises in our country only carry out simple rough processing of coal gangue, mainly for the production of building materials, with low grades and short industrial chains, which cause serious waste of precious resources.
The waste and accumulation of coal gangue are very harmful to the environment: they occupy a large amount of land, affect the ecology, and destroy the landscape; the leaching water (acidic water) of the gangue hill pollutes groundwater sources and rivers, endangering crops and aquaculture; In the presence of iron sulfide and carbonaceous substances, it will also spontaneously ignite, emit a large amount of smoke and dust, seriously pollute the atmosphere, damage human health, inhibit plant growth, and corrode the structure of buildings; security poses a serious threat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: a kind of method of gangue calcining produces ultramarine blue, and its steps are as follows:

[0034] 1) Material selection: crush the gangue into fragments with a diameter of 0.4-0.5 mm. The selection standard for coal gangue is to use local coal gangue with high purity and no impurities as the main raw material, and use wind selection impact mill to grind the gangue Make 325 mesh powder into bags for later use.

[0035] 2), ingredients: 700 kg of coal gangue powder, 760 kg of soda ash, 800 kg of sulfur, 100 kg of quartz powder, 115 kg of sodium sulfate, 150 kg of charcoal, and 25 kg of bentonite.

[0036] 3) Grinding: Mix the prepared raw materials evenly and put them into a ball mill for grinding. It is required that the fineness of all materials must be higher than 400 mesh, and the ball milling should be more than 2 hours and less than 3 hours.

[0037] 4) Filling the crucible: compact the prepared raw materials into the crucible several times, and ...

Embodiment 2

[0045] Embodiment 2: a kind of method of gangue calcining produces ultramarine blue, and its steps are as follows:

[0046] 1) Material selection: crush the gangue into fragments with a diameter of 0.4-0.5 mm. The selection standard for coal gangue is to use local coal gangue with high purity and no impurities as the main raw material, and use wind selection impact mill to grind the gangue Make 500 mesh powder into bags for later use.

[0047] 2) Ingredients: 680 kg of coal gangue powder, 770 kg of soda ash, 795 kg of sulfur, 105 kg of quartz powder, 110 kg of Yuanming, 145 kg of charcoal, and 30 kg of bentonite.

[0048] 3) Grinding: Mix the prepared raw materials evenly and put them into a ball mill for grinding. It is required that the fineness of all materials must be higher than 400 mesh, and the ball milling should be more than 2 hours and less than 3 hours.

[0049] 4) Filling the crucible: compact the prepared raw materials into the crucible several times, and arrange...

Embodiment 3

[0057] Embodiment 3: a kind of method of gangue calcining produces ultramarine blue, and its steps are as follows:

[0058] 1) Material selection: crush the gangue into fragments with a diameter of 0.4-0.5 mm. The selection standard for coal gangue is to use local coal gangue with high purity and no impurities as the main raw material, and use wind selection impact mill to grind the gangue Become 400 mesh powder bagging stand-by.

[0059] 2), ingredients: 715 kg of coal gangue powder, 750 kg of soda ash, 805 kg of sulfur, 95 kg of quartz powder, 120 kg of sodium sulfate, 155 kg of charcoal, and 20 kg of bentonite.

[0060] 3) Grinding: Mix the prepared raw materials evenly and put them into a ball mill for grinding. It is required that the fineness of all materials must be higher than 400 mesh, and the ball milling should be more than 2 hours and less than 3 hours.

[0061] 4) Filling the crucible: compact the prepared raw materials into the crucible several times, and arrang...

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Abstract

The invention relates to a method for producing an ultramarine, in particular to a method for producing an ultramarine by calcining gangue. The method comprises the steps as follows: materials are selected and mixed, the materials comprise gangue powder, quartz powder, soda, sulfur, anhydrous sodium sulphate, charcoal, bentonite, and are ground, filled into a boiler and a furnace, calcined, taken out from the furnace, selected, preliminarily washed, ground, filtered pressing, dried, and crushed, the product obtained is measured, packed and warehoused. The method for producing the ultramarine has the beneficial effect of 1 making full use of waste gangue and protecting environment, 2 meeting the domestic market demand and participating in the international market competition, and earning foreign exchange by export, 3 facilitating industrial restructuring and upgrading and updating of products, 4 relieving local employment pressure and promoting the development of local economy.

Description

technical field [0001] The invention relates to a method for producing ultramarine blue, in particular to a method for producing ultramarine blue by calcining coal gangue. Background technique [0002] Ultramarine is an important inorganic pigment, its chemical structure is silicoaluminophosphate, molecular formula Na6Al 4 Si 6 S 4 o 20 , is an artificial lapis lazuli pigment, its pigment index system ranks Pigment Blue No. 29, and the color number: Pigment Blue 29-77007. Ultramarine blue has excellent properties such as non-toxic, high-strength resistance, and weather resistance. It usually does not fade below 300°C. It is widely used in the production of plastics, paints, inks, rubber, construction, paper, detergents, paints, etc. The main functions are whitening, toning, coloring, resin anti-aging agent, hydrocracking catalyst, seawater uranium extraction adsorbent, etc. [0003] The traditional ultramarine production method is: select a kind of natural kaolin in Cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/20C09C1/40
Inventor 李梦兰
Owner 大同市晟威矸石有限责任公司
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