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FCC (Fluid Catalytic Cracking) waste catalyst doped autoclaved flyash-lime brick and making method thereof

An autoclaved fly ash brick and waste catalyst technology, applied in the field of materials, can solve the problems of wasting land resources and easily polluting the environment, and achieves the effect of low cost

Active Publication Date: 2017-05-24
山东京博环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, such practices not only easily pollute the environment, but also waste land resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An autoclaved fly ash brick mixed with FCC waste catalyst is prepared from the following raw materials in parts by weight: 20 parts of FCC waste catalyst, 25 parts of fly ash, 20 parts of thiourea filter residue, and 35 parts of stone chips.

[0031] The FCC waste catalyst has a particle size of 180 to 250 meshes; the fly ash is the third-grade fly ash discharged from the pulverized coal furnace of a thermal power plant; the effective calcium content of the thiourea filter residue is the total mass of the thiourea filter residue 42%; stone chips with a particle size of 4mm.

[0032] The method for preparing the described autoclaved fly ash brick mixed with FCC waste catalyst, the concrete steps are as follows:

[0033] 1) Take the thiourea filter residue according to the measured portion, and after being produced by the thiourea device, press filter and wash the filter cake until the residual amount of thiourea is ≤0.30%, the moisture content is ≤38.00%, and the availab...

Embodiment 2

[0042] An autoclaved fly ash brick mixed with FCC waste catalyst is prepared from the following raw materials in parts by weight: 19 parts of FCC waste catalyst, 24 parts of fly ash, 21 parts of thiourea filter residue, and 36 parts of stone chips.

[0043] The FCC waste catalyst has a particle size of 180 to 250 meshes; the fly ash is the third-grade fly ash discharged from the pulverized coal furnace of a thermal power plant; the effective calcium content of the thiourea filter residue is the total mass of the thiourea filter residue 43%; stone chips with a particle size of 5mm.

[0044] The method for preparing the described autoclaved fly ash brick mixed with FCC waste catalyst, the concrete steps are as follows:

[0045] 1) Take the thiourea filter residue according to the measured portion, and after being produced by the thiourea device, press filter and wash the filter cake until the residual amount of thiourea is ≤0.30%, the moisture content is ≤38.00%, and the availab...

Embodiment 3

[0054] An autoclaved fly ash brick mixed with FCC waste catalyst is prepared from the following raw materials in parts by weight: 18 parts of FCC waste catalyst, 23 parts of fly ash, 22 parts of thiourea filter residue, and 37 parts of stone chips.

[0055] The FCC waste catalyst has a particle size of 180 to 250 meshes; the fly ash is the third-grade fly ash discharged from the pulverized coal furnace of a thermal power plant; the effective calcium content of the thiourea filter residue is the total mass of the thiourea filter residue 46%; stone chips with a particle size of 7mm.

[0056] The method for preparing the described autoclaved fly ash brick mixed with FCC waste catalyst, the concrete steps are as follows:

[0057] 1) Take the thiourea filter residue according to the measured portion, and after being produced by the thiourea device, press filter and wash the filter cake until the residual amount of thiourea is ≤0.30%, the moisture content is ≤38.00%, and the availab...

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Abstract

The invention discloses a method for manufacturing an autoclaved flyash-lime brick by using an FCC (Fluid Catalytic Cracking) waste catalyst. The method comprises the following step: by taking the FCC waste catalyst, coal ash, thiourea filter residues (Ca(OH)2) as main raw materials, doping a proper amount of aggregate, performing raw material pretreatment, pressing molding and high-temperature high-voltage steam curing, thereby obtaining the autoclaved flyash-lime brick. The autoclaved flyash-lime brick can replace conventional clay red bricks, and is a novel wall body material which is greatly developed and applied in China. The autoclaved flyash-lime brick is manufactured by using the FCC waste catalyst safely and efficiently. Not only are local solid-waste treatment problems solved, but also farmlands can be saved, pollution can be reduced, and the environment can be protected; as a great deal of industrial waste residues can be utilized, the autoclaved flyash-lime brick is good in durability and relatively high in wall body strength, and has great significances of environment protection and waste utilization.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing autoclaved fly ash bricks from FCC waste catalysts. [0002] technical background [0003] Autoclaved fly ash bricks, referred to as fly ash bricks, are made of fly ash and thiourea filter residue (Ca(OH) 2 ) as the main raw material, mixed with an appropriate amount of aggregate, and solid bricks made of raw material preparation, compression molding, and high-pressure steam curing. It is suitable for the interior and exterior walls of various civil buildings, public buildings, and industrial plants, as well as the foundation of houses. . It is a product that replaces traditional fired clay bricks. [0004] FCC spent catalyst is a hazardous waste produced in catalytic cracking, the most important secondary process in the oil refining industry. With the heavy and inferior quality of petroleum resources, the quality of raw materials for catalytic cracki...

Claims

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Application Information

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IPC IPC(8): C04B30/00C04B18/04
CPCY02W30/91C04B30/00C04B18/0481C04B2201/50C04B18/08C04B18/12
Inventor 马韵升史庆苓栾波胡树峰张逸晨王明军刘立勇张童鑫
Owner 山东京博环保材料有限公司
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