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Method for preparing adsorption material from cinder

A technology of porous adsorption materials and pyrite slag, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve difficult activation, difficult treatment, low adsorption/desorption efficiency, etc. problems, to achieve the effect of enhanced surface activity, reduced sulfur content, and good compressive strength

Inactive Publication Date: 2016-04-27
魏泽民
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Problems solved by technology

However, there are also key problems such as difficult governance, difficult activation, and low adsorption / desorption efficiency.

Method used

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Examples

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example 1

[0034] Example 1: The sulfuric acid slag containing 39.77% of iron and 1.12% of sulfur is prepared under warm water at 80°C to form a pulp with a mass concentration of 60%, and the quality of concentrated hydrochloric acid is added at the same time to be 8% of the mass of the sulfuric acid slag. The ball mill is used for grinding, the grinding time is 1min, and the ore pulp is poured out and put into the ore feeding stirring tank of the magnetic separator. The concentration of the magnetic separator feeding the ore tank is 30%. The middle punching time is 10s, and the fine punching time is 10s; after sorting, the sulfuric acid slag concentrate is filtered and dried in an oven at 110°C to obtain pyrite slag iron concentrate.

[0035] Add pyrite slag and iron concentrate with 30% diatomite by mass, 4% coke powder and 8% binder for mixing and granulation. During the granulation process, the amount of water sprayed is the total dry mixture 10%, granulation time is 10min, curing an...

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Abstract

The invention discloses a method for preparing a porous adsorption material from pyrite cinder. The method comprises the following steps: (1) loading the pyrite cinder, which serves as an initial raw material, into a conical ball mill, controlling slurry concentration, proportionally adding a desulfurizing agent, i.e., hydrochloric acid into the conical ball mill, and carrying out milling for 2 minutes; (2) loading the milled material to a feeding stirring tank of a magnetic separator, controlling feeding concentration, adjusting the intensity of exciting current and the time for feeding, medium flushing and fine flushing, and carrying out magnetic separation once, so as to obtain a pyrite cinder concentrate; (3) dehydrating and baking the pyrite cinder concentrate, so as to obtain high-ferrum and low-sulfur type iron concentrate; (4) proportionally adding diatomite powder, coke powder and a binder to the pyrite cinder concentrate, and carrying out uniform mixing; and (5) granulating the mixture by a granulator, putting the granules into a baking oven, carrying out low-temperature curing drying, then, carrying out roasting reduction for 2 hours in a high-temperature electric resistance furnace, thereby obtaining the porous adsorption material.

Description

technical field [0001] The patent of the present invention belongs to the adsorption material of sewage and waste gas, and relates to a utilization technology of pyrite slag, that is, a new process of "preparing porous adsorption material from pyrite slag". Particle forming, reduction and pore formation, and pyrite slag are obtained to prepare porous adsorption materials. Background technique [0002] Use retrieval conditions: abstract=(pyrite cinder) AND abstract=(porous adsorption material); abstract=(sulfuric acid slag) AND abstract=(porous material); and abstract=(pyritecinder)AND abstract=(Porousadsorptionmaterial); or abstract =(sulfuric-acidresidue)ANDabstract=(Porousadsorptionmaterial) Search databases at home and abroad. After careful searching, there is no content of invention identical or similar to this patent application. [0003] Pyrite slag is the waste slag discharged after producing sulfuric acid from pyrite or sulfur-containing tailings, in which the iron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/14B01J20/28B01J20/30
Inventor 魏泽民郭梅
Owner 魏泽民
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