Method for preparing fine desulfurizer with water quenching slag of nickel concentrates

A water quenching slag, fine desulfurization technology, applied in separation methods, chemical instruments and methods, catalyst activation/preparation, etc., can solve problems such as environmental pollution, waste discharge into the environment, lack of a scientific management system, etc., and achieve low cost. , The economic and social benefits are significant, and the desulfurization effect is stable.

Active Publication Date: 2010-05-19
吉林卓创新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the status quo of comprehensive utilization technologies, most of them stay at the lower level of road construction, backfilling, agricultural use and production of building materials. Discharged into the environment, causing serious environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] In the quenched slag of the nickel smelter used in this example, the content of nickel accounts for 0.2% of the weight of the quenched slag, the content of copper accounts for 0.5% of the weight of the quenched slag, the content of iron accounts for 35% of the weight of the quenched slag, and the content of chromium accounts for 0.5% of the weight of the quenched slag. The content accounts for 0.1% of the weight of the water-quenched slag. Weigh 200g of the water-quenched slag into a 1L beaker, add an appropriate amount of water, and then add a certain amount of sulfuric acid. Heat treatment for 2 to 3 hours. After cooling, under the action of air stirring, add dropwise Ammonia water is used for neutralization reaction, and the obtained precipitate is filtered, washed and dried for later use. Weigh 5.0g of calcium oxide, 5.0g of magnesium oxide, and 10.0g of kaolin, and mix them well with the above-mentioned precipitate, add an appropriate amount of water, knead and extr...

example 2

[0012] In the water-quenched slag of the nickel smelter used in this example, the content of nickel accounts for 0.3% of the water-quenched slag weight, the content of copper accounts for 1.0% of the water-quenched slag weight, the content of iron accounts for 32% of the water-quenched slag weight, and the content of chromium The content accounts for 0.2% of the weight of the water-quenched slag. Weigh 200g of the water-quenched slag into a 1L beaker, add an appropriate amount of water, and then add a certain amount of concentrated sulfuric acid. Heat treatment for 2 to 3 hours. After cooling, under the action of air stirring, drip Add ammonia water to carry out neutralization reaction, and the obtained precipitate is filtered, washed and dried for later use. Weigh 5.0g of calcium oxide, 5.0g of magnesium oxide, and 10.0g of kaolin, and mix them well with the above-mentioned precipitate, add an appropriate amount of water, knead and extrude to form, and the formed desulfurizer ...

example 3

[0014] In the quenched slag of the nickel smelter used in this example, the content of nickel accounts for 0.5% of the weight of the quenched slag, the content of copper accounts for 0.5% of the weight of the quenched slag, the content of iron accounts for 30% of the weight of the quenched slag, and the content of chromium accounts for 0.5% of the weight of the quenched slag. The content accounts for 0.2% of the weight of the water-quenched slag. Weigh 200g of the water-quenched slag into a 1L beaker, add an appropriate amount of water, and then add a certain amount of concentrated sulfuric acid. Heat treatment for 2 to 3 hours. After cooling, under the action of air stirring, drip Add ammonia water to carry out neutralization reaction, and the obtained precipitate is filtered, washed and dried for later use. Weigh 5.0g of calcium oxide, 5.0g of magnesium oxide, and 10.0g of kaolin, and mix them well with the above-mentioned precipitate, add an appropriate amount of water, knea...

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PUM

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Abstract

The invention discloses a method for preparing a fine desulfurizer with water quenching slag of nickel concentrates, which is characterized by using the water quenching slag of nickel concentrates as the raw material for preparing the fine desulfurizer, using acid to treat the water quenching slag and then adding alkali for neutralization under the condition of introducing air and stirring, mixing the obtained precipitates and binders evenly and preparing the fine desulfurizer by extrusion molding after kneading by adding water. The water quenching slag contains the compounds of Ni, Cu, Zn, Fe and Cr. The method makes good use of the industrial and metallurgical wastes harmful to the environment. The prepared fine desulfurizer has less than 0.1*10-6(v/v) degree of purification toward the feed gases, stable desulfurization effect and low cost, realizes energy conservation and emission reduction, changes wastes into valuables and has obvious economic and social benefits.

Description

technical field [0001] The invention belongs to the recovery and reuse of industrial waste, and relates to a method for preparing a fine desulfurizer by utilizing the water-quenched slag of a nickel smelter. technical background [0002] Sulfur is the main poison that causes catalyst poisoning, and most high-efficiency catalysts need desulfurization treatment to prolong the service life of the catalyst. h 2 S is the main poison that causes catalyst poisoning, and it widely exists in various chemical raw material gases. Therefore, it is very necessary to desulfurize the raw material gas, and the key is to reduce the desulfurization cost and improve the desulfurization efficiency. [0003] In recent years, nearly 1.2 billion tons of industrial wastes have been produced in my country every year. Among the industrial wastes, more than 40 million tons of fly ash have not been utilized every year; the accumulated tailings of various metal mines have reached 4 billion tons, and mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/86B01J37/03B01D53/86B01D53/52
Inventor 于然波朴东鹤袁凤艳雷福伟唐思琪孟庆伟
Owner 吉林卓创新材料有限公司
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