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Diatomite drying agent and production process thereof

A production process, the technology of diatomite, applied in the field of materials, can solve the problems of losing the application value of diatomite, destroying the advantages of diatomite, and the difficulty of forming diatomite, so as to improve the application value, decompose odor molecules, and improve the utilization effect of space

Inactive Publication Date: 2015-09-30
辛全宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molding of diatomite is very difficult, making it unusable in many fields. Therefore, the molding of diatomite has always been an unsolved problem.
[0003] The existing diatomite molding technology is generally formed by bonding with chemical adhesives. Although the molding is successful, the chemical adhesives completely block the micropores of diatomite, seriously destroying the inherent advantages of diatomite. , thus losing the application value of diatomite
Practice has proved that this molding scheme is not feasible

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the embodiment of the present invention, a diatomite desiccant is composed of diatomite powder with low silicon content, diatomite powder with high silicon content and water; diatomite powder with low silicon content and silicon The volume ratio of diatomite powder is 1:0.5; diatomite powder with low silicon content is made of SiO 2 Diatomite with a content of 65wt% and low silicon content containing more montmorillonite is obtained by winnowing to more than 120 mesh; diatomite powder with high silicon content is made of SiO 2 Diatomite with a high silicon content of more than 65wt% is calcined at 900°C for 28 hours, and then air-selected to a mesh size of 80 or more; the water content accounts for 3% or less of the total mass of the desiccant.

[0026] The preparation method of described diatomite desiccant, concrete preparation steps are:

[0027] (1) Preparation of diatomite powder with low silicon content: the diatomite powder with low silicon content is air-sel...

Embodiment 2

[0037] In the embodiment of the present invention, a diatomite desiccant is composed of diatomite powder with low silicon content, diatomite powder with high silicon content and water; diatomite powder with low silicon content and silicon The volume ratio of diatomite powder is 1:1; the diatomite powder with low silicon content is made of SiO 2 Diatomite with a content of 55wt% and low silicon content containing more montmorillonite is obtained by winnowing to more than 120 mesh; diatomite powder with high silicon content is made of SiO 2 Diatomite with a high silicon content of more than 65wt% is calcined at 950°C for 24 hours, and then air-selected to a mesh size of 80 or more; the water content accounts for 3% or less of the total mass of the desiccant.

[0038] The preparation method of described diatomite desiccant, concrete preparation steps are:

[0039] (1) Preparation of diatomite powder with low silicon content: the diatomite powder with low silicon content is air-s...

Embodiment 3

[0046] In the embodiment of the present invention, a diatomite desiccant is composed of diatomite powder with low silicon content, diatomite powder with high silicon content and water; diatomite powder with low silicon content and silicon The volume ratio of diatomite powder is 1:1.5; the diatomite powder with low silicon content is made of SiO 2 Diatomite with a low silicon content of 50wt% and more montmorillonite is obtained by winnowing to more than 120 mesh; the diatomite powder with high silicon content is made of SiO 2 Diatomite with a high silicon content of more than 65wt% is obtained by calcining at 1000°C for 20 hours, and then air-selected to more than 80 mesh; the mass of water accounts for 3% or less of the total mass of the desiccant.

[0047] The preparation method of described diatomite desiccant, concrete preparation steps are:

[0048] (1) Preparation of diatomite powder with low silicon content: the diatomite powder with low silicon content is air-selected...

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PUM

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Abstract

The invention discloses a diatomite drying agent and a production process thereof. The diatomite drying agent comprises low-Si-content diatomite powder, high-Si-content diatomite powder and water; the volume ratio of the low-Si-content diatomite powder to the high-Si-content diatomite powder is 1: (0.5-1.5); the low-Si-content diatomite powder is obtained by winnowing low-Si-content diatomite of which the SiO2 weight content is 50-65% till 120 meshes or more; the high-Si-content diatomite powder is obtained by calcining high-Si-content diatomite of which the SiO2 weight content is 65% or higher at 900-1000 DEG C for 20-28 hours, and then winnowing calcined high-Si-content diatomite till 80 meshes or more; the weight of water accounts for 3% or lower of the total weight of the diatomite drying agent; the diatomite drying agent is obtained through forming, drying, screening and packaging. The diatomite drying agent and the production process have the advantages that the self-owned bonding property of diatomite is utilized, so that any chemical preparations need not to be added, and the problem of difficult diatomite forming can be solved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a diatomite desiccant and a production process thereof. Background technique [0002] Diatomite is a natural mineral, its main component is silicon dioxide, and its physical properties are stable, off-white, light in texture, soft, suitable for weathering, and presented in powder form. Because diatomaceous earth has the characteristics of numerous micropores, large pore size, strong adsorption capacity, moisture absorption, odor absorption, non-toxic, tasteless, and non-radioactive, it can be widely used in various industries. However, the molding of diatomite is very difficult, which makes it unusable in many fields. Therefore, the molding of diatomite has always been an unsolved problem. [0003] The existing diatomite molding technology is generally formed by bonding with chemical adhesives. Although the molding is successful, the chemical adhesives completely block the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/28
Inventor 辛全宏
Owner 辛全宏
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