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Stainless steel waste residue composite adsorbent and preparation method thereof

A composite adsorption, stainless steel technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of secondary pollution of products, small processing capacity, incomplete detoxification, etc., and achieve the effect of eliminating hidden dangers of pollution and improving utilization rate.

Inactive Publication Date: 2012-12-26
中国科学院唐山高新技术研究与转化中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a variety of treatment and comprehensive utilization methods have been developed and researched, but there are certain problems in these treatment and utilization methods, such as incomplete detoxification, small treatment capacity, and secondary pollution of the prepared products, so they are not used in practice. Not widely, most of them still use passive stacking or land reclamation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: The stainless steel waste slag composite adsorbent adopts the following raw materials and preparation methods.

[0013] Raw material weight: 1000g of cement, 5000g of stainless steel waste, 500g of 0.5mm-1.0mm sawdust and 1000g of water.

[0014] Preparation method: (1) First add water to the mixing equipment, then add cement, sawdust, and stainless steel waste slag in turn under stirring, and stir thoroughly;

[0015] (2) Extrude the uniformly stirred mixture into strips with a catalyst forming machine, and dry in an oven at 50°C to obtain the stainless steel waste slag composite adsorbent.

Embodiment 2

[0016] Embodiment 2: The stainless steel waste slag composite adsorbent uses the following raw materials and preparation methods.

[0017] Raw material weight: 2000g of cement, 6000g of stainless steel waste residue, 100g of 0.5mm-1.0mm sawdust, and 2000g of water.

[0018] Preparation method: (1) First add water to the mixing device, then add cement, sawdust, and stainless steel waste slag in turn under stirring, and stir thoroughly;

[0019] (2) Extrude the uniformly stirred mixture into strips with a catalyst molding machine, and dry in an oven at 30°C to obtain the stainless steel waste slag composite adsorbent.

Embodiment 3

[0020] Embodiment 3: The stainless steel waste slag composite adsorbent uses the following raw materials and preparation methods.

[0021] Raw material weight: cement 3500g, stainless steel waste residue 7000g, 0.5mm~1.0mm sawdust 1500g, water 3500g.

[0022] Preparation method: (1) First add water to the stirring device, then add cement, sawdust, and stainless steel waste in turn under stirring, and stir thoroughly;

[0023] (2) Extrude the uniformly stirred mixture into strips with a catalyst forming machine, and dry in an oven at 60°C to obtain the stainless steel waste slag composite adsorbent.

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PUM

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Abstract

The invention discloses a stainless steel waste residue composite adsorbent and a preparation method thereof. The stainless steel waste residue composite adsorbent is prepared from the following raw materials in parts by weight: 10-35 parts of cement, 50-70 parts of stainless steel waste residues, 5-15 parts of sawdust and 10-35 parts of water. The adsorbent can be taken as a desulfurizer for application to desulfurization in liquid or gas; and the sulfur capacity is more than or equal to 25 percent, and the compressive strength is more than or equal to 50N / cm. In the adsorbent, the stainless steel waste residues are utilized effectively, so that the utilization ratio of waste resources is increased, and the hidden trouble of environmental pollution caused by the stainless steel waste residues is eliminated simultaneously.

Description

technical field [0001] The invention relates to an adsorption material, in particular to a stainless steel waste slag composite adsorbent and a preparation method thereof. Background technique [0002] Stainless steel waste slag is solid waste containing hexavalent toxic chromium produced in the stainless steel production process. With the continuous increase of stainless steel production in my country, a large amount of toxic stainless steel waste slag produced brings more and more pressure to enterprises. At the same time, the toxic chromium-containing waste slag The serious pollution caused by the international community attaches great importance to it. At present, a variety of treatment and comprehensive utilization methods have been developed and researched, but there are certain problems in these treatment and utilization methods, such as incomplete detoxification, small treatment capacity, and secondary pollution of the prepared products, so they are not used in practi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30B01D53/04
Inventor 惠建斌张星赵媛媛杜志军柯春林郑文婧
Owner 中国科学院唐山高新技术研究与转化中心
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