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A method for preparing mesoporous materials from coal gangue and a catalyst carrier prepared from coal gangue

A technology of mesoporous materials and coal gangue, which is applied in the field of catalyst carriers, can solve the problems of low calorific value of coal gangue, unsuitability for power generation, and influence on the normal operation of coal mines, etc., and achieve the effects of large specific surface area, environmental protection in the preparation process, and cost reduction

Inactive Publication Date: 2021-03-19
珠海三豫环保新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment methods of coal gangue are used to make bricks, generate electricity or build roads, and the calorific value of coal gangue in some areas is relatively low, which is not suitable for power generation, such as: Sichuan. Therefore, the problem of coal gangue has seriously affected the Normal operation of coal mine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A kind of method utilizing coal gangue to prepare mesoporous material, it comprises the following steps:

[0072] S1: Raw material testing, chemical composition and phase analysis of coal gangue raw materials, limestone or phosphogypsum raw materials, to obtain the chemical composition and content of coal gangue, limestone or phosphogypsum;

[0073] S2: Raw material crushing, the raw material is crushed by a crusher to obtain powder; further, the raw material crushing is divided into two steps, that is, coarse crushing and fine grinding. Yes, the jaw crusher is used for coarse crushing to obtain granular raw materials. The main purpose of coarse crushing is to crush the large coal gangue raw materials into granular raw materials, so that the coal gangue can enter the fine grinding equipment Second, the granular raw materials are sent to the fine grinding equipment for grinding. The preferred fine grinding equipment is a ball mill to obtain powder. Usually, the powder th...

Embodiment 2

[0086] A kind of method utilizing coal gangue to prepare mesoporous material, it comprises the following steps:

[0087] S1: Raw material testing, chemical composition and phase analysis of coal gangue raw materials, limestone or phosphogypsum raw materials, to obtain the chemical composition and content of coal gangue, limestone or phosphogypsum;

[0088] S2: Raw material crushing, the raw material is crushed by a crusher to obtain powder; further, the raw material crushing is divided into two steps, that is, coarse crushing and fine grinding. Yes, the jaw crusher is used for coarse crushing to obtain granular raw materials. The main purpose of coarse crushing is to crush the large coal gangue raw materials into granular raw materials, so that the coal gangue can enter the fine grinding equipment Second, the granular raw materials are sent to the fine grinding equipment for grinding. The preferred fine grinding equipment is a ball mill to obtain powder. Usually, the powder th...

Embodiment 3

[0101] A kind of method utilizing coal gangue to prepare mesoporous material, it comprises the following steps:

[0102] S1: Raw material testing, chemical composition and phase analysis of coal gangue raw materials, limestone or phosphogypsum raw materials, to obtain the chemical composition and content of coal gangue, limestone or phosphogypsum;

[0103] S2: Raw material crushing, the raw material is crushed by a crusher to obtain powder; further, the raw material crushing is divided into two steps, that is, coarse crushing and fine grinding. Yes, the jaw crusher is used for coarse crushing to obtain granular raw materials. The main purpose of coarse crushing is to crush the large coal gangue raw materials into granular raw materials, so that the coal gangue can enter the fine grinding equipment Second, the granular raw materials are sent to the fine grinding equipment for grinding. The preferred fine grinding equipment is a ball mill to obtain powder. Usually, the powder th...

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Abstract

The invention discloses a method for preparing a mesoporous material from coal gangue and a catalyst carrier prepared from the coal gangue. The method comprises the following steps of S1, raw materialtesting; S2, raw material crushing; S3, burdening; S4, mixing; S5, molding; S6, thermal activation; S7, quenching; S8, drying; S9, secondary crushing; S10, acid activation; S11, slag-liquid separation; S12, secondary drying; and S13, tertiary crushing. Through the mesoporous material provided by the invention, the coal gangue is changed into the valuable from the waste; moreover, mesopores and micropores are formed by powder composed of the coal gangue; metallic oxides in calcinated clinker are converted into metal ions to be dissolved from the clinker through acidification, and accordingly,more mesopores are formed. The powder has large specific surface area and provides the carrier for adhesion of a catalyst.

Description

technical field [0001] The invention relates to the technical field of gangue treatment, in particular to a method for preparing mesoporous materials from gangue and a catalyst carrier prepared from gangue. Background technique [0002] Coal gangue is a solid industrial waste produced during coal mining and processing, which contains a variety of mineral components. Among them, the content of kaolin and quartz accounts for more than 50%, and may also contain illite, chlorite, muscovite, feldspar, pyrite, siderite, hematite, calcite and other crystal phase minerals. Among them, kaolinite, illite, chlorite, muscovite, and feldspar belong to aluminous clay minerals, all of which have good adsorption properties. The main chemical components of coal gangue include AL2O3, SiO2, CaO, MgO, Fe2O3, K2O and Na2O. The contents of these chemical components fluctuate greatly depending on the geological age and region of the coal seam. [0003] However, in my country, the coal gangue st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B01J32/00B01J35/04
Inventor 周建民
Owner 珠海三豫环保新材料科技有限公司
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