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Method for preparing foamed ceramic thermal insulation material with low energy consumption by using fluorocarbon cerium type rare earth tailings and product

A technology of rare earth tailings and foamed ceramics, applied in the production of ceramic materials, clay products, ceramic products, etc., can solve the problems of environmental pollution, large land occupation, etc., and achieve the effects of reducing production costs, reducing energy consumption, and light weight

Active Publication Date: 2021-06-18
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing foamed ceramic insulation materials using bastnaesic rare earth tailings with low energy consumption in view of the problems that the existing metal tailings are usually stacked, occupying a large amount of land and causing environmental pollution and products

Method used

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  • Method for preparing foamed ceramic thermal insulation material with low energy consumption by using fluorocarbon cerium type rare earth tailings and product
  • Method for preparing foamed ceramic thermal insulation material with low energy consumption by using fluorocarbon cerium type rare earth tailings and product

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Experimental program
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Effect test

Embodiment 1

[0040] The process of preparing the foamed ceramic insulation material in this embodiment is as follows.

[0041] (1) Weigh raw materials

[0042] The components were weighed according to the following mass percentages: bastnaesic rare earth tailings 60wt%, kaolin 25wt%, quartz 14wt%, foaming agent 1wt%. In this embodiment, the foaming agent is silicon carbide. Mix the weighed components uniformly to obtain the first intermediate.

[0043] (2) Wet ball milling

[0044] After adding 50wt% water of the first intermediate to the first intermediate, put it into a ball mill for wet ball milling to obtain a uniformly mixed slurry. It is required that the particle size of each component in the slurry is less than 200 mesh.

[0045] (3) Compression molding

[0046] Dry the ball-milled slurry in step 2 at a temperature of 130° C. for 80 minutes to obtain raw meal. After the dried raw material is pressed into shape, a foamed ceramic green body is obtained.

[0047] (4) Sintering ...

Embodiment 2

[0050] The process of preparing the foamed ceramic insulation material in this embodiment is as follows.

[0051] (1) Weigh raw materials

[0052] The components were weighed according to the following mass percentages: bastnaesic rare earth tailings 65wt%, kaolin 25wt%, quartz 9wt%, foaming agent 1wt%. In this embodiment, the foaming agent is manganese dioxide. Mix the weighed components uniformly to obtain the first intermediate.

[0053] (2) Wet ball milling

[0054] After adding 50wt% water of the first intermediate to the first intermediate, put it into a ball mill for wet ball milling to obtain a uniformly mixed slurry. It is required that the particle size of each component in the slurry is less than 200 mesh.

[0055] (3) Compression molding

[0056] Dry the ball-milled slurry in step 2 at a temperature of 100° C. for 120 minutes to obtain raw meal. After the dried raw material is pressed into shape, a foamed ceramic green body is obtained.

[0057] (4) Sintering...

Embodiment 3

[0060] The process of preparing the foamed ceramic insulation material in this embodiment is as follows.

[0061] (1) Weigh raw materials

[0062] Each component was weighed according to the following mass percentages: bastnaesic rare earth tailings 70wt%, kaolin 23wt%, quartz 5wt%, foaming agent 2wt%. In this embodiment, the foaming agent is manganese dioxide. Mix the weighed components uniformly to obtain the first intermediate.

[0063] (2) Wet ball milling

[0064] After adding 50wt% water of the first intermediate to the first intermediate, put it into a ball mill for wet ball milling to obtain a uniformly mixed slurry. It is required that the particle size of each component in the slurry is less than 200 mesh.

[0065] (3) Compression molding

[0066] Dry the ball-milled slurry in step 2 at a temperature of 110° C. for 80 minutes to obtain uniformly mixed raw meal. After the dried raw material is pressed into shape, a foamed ceramic green body is obtained.

[0067]...

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Abstract

The invention discloses a method for preparing a foamed ceramic thermal insulation material with low energy consumption by using fluorocarbon cerium type rare earth tailings and a product, belongs to the field of building material preparation, and aims to solve the problems that the existing metal tailings are usually stacked, occupy a large amount of land and cause environmental pollution. The method comprises the following steps: by taking the bastnaesite type rare earth tailings, kaolin, quartz and a foaming agent as raw materials, weighing the components according to a ratio, uniformly mixing, sequentially carrying out wet ball milling, drying, forming and sintering, and cooling along with a furnace. In the application, on one hand, the waste fluorocarbon cerium type rare earth tailings are used as the main raw material, so that the raw material cost is reduced; on the other hand, the sintering temperature is reduced, the preparation energy consumption of the foamed ceramic thermal insulation material is reduced, and the production cost is reduced; and the preparation method has remarkable progressive significance in reducing the preparation cost of the foamed ceramic thermal insulation material, and is beneficial to promoting the popularization and application of the foamed ceramic thermal insulation material.

Description

technical field [0001] The invention relates to the field of building material preparation, especially the field of green building materials and prefabricated building materials, and specifically relates to a method and a product for preparing foamed ceramic thermal insulation materials using bastnaesium-type rare earth tailings with low energy consumption. Background technique [0002] As a new type of building material, building thermal insulation materials reduce the heat dissipation from the building's interior to the outside by taking measures on the building's outer envelope, thereby maintaining the building's indoor temperature. The use of building insulation materials can create a suitable indoor thermal environment for users and effectively reduce building energy consumption, which is an important part of green buildings. Existing building insulation materials are usually divided into two categories: organic insulation materials and inorganic insulation materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B33/132
CPCC04B38/02C04B33/132C04B2235/3418Y02P40/60
Inventor 王维清朱欣宇黄阳刘爱平和丽丽
Owner SOUTHWEAT UNIV OF SCI & TECH
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