Novel mineral silicon dioxide flake desiccant and preparation method thereof

A silica and desiccant technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve problems such as inability to pack tightly, low moisture absorption rate, and bagged silica gel desiccant drops, etc., to achieve Huge application prospects and economic value, increased total moisture absorption, and effective space saving effects

Active Publication Date: 2014-01-15
昆山威胜干燥剂研发中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, bagged silica gel and other desiccants have been widely used. The main defect is that silica gel and other desiccants must be repacked with air-permeable non-woven fabrics or paper, and cannot be directly attached to the product packaging that requires desiccant. , and the bagged silica gel desiccant will fall and break, which may cause secondary pollution of the product; and the traditional bagged silica gel desiccant placement process can only be placed manually, and continuous automatic delivery cannot be realized, thus limiting its automation. industry process
The disadvantages of the disclosed content are: the materials are only simply mixed, and must be packaged for use; there are many components, and the cost is high; no specific experimental data has been disclosed, and it has been verified that its hygroscopic performance is not good, and its hygroscopic rate is relatively low. Low
[0007] The disadvantages of the above technical content are: the desiccant must be repacked with breathable non-woven fabric or paper before it can be used in various moisture-proof fields; and the amount of space is small, and the total absorption is bound to be low

Method used

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  • Novel mineral silicon dioxide flake desiccant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Step 1: Natural Mineral Purification

[0055] Stir and soak 5 parts of montmorillonite ore soil with 80 parts of purified water for more than 50 hours, wait for it to fully expand, and sieve through 200 mesh or more to separate large particles of impurity ore soil.

[0056] Step 2: Primary Silica

[0057] Use a spherical vibrating pulverizer to crush 8 parts of fine-pore (type A) silica gel particles and pass through a sieve of more than 400 mesh.

[0058] The third step: preparation of fine powder

[0059] Put the purified montmorillonite ore liquid treated in the first step and the silica gel powder treated in the second step into the grinder, grind for more than 60 hours, and centrifuge the materials in a high-speed tubular centrifuge (centrifuge speed: 2000 rpm / minute or more), the material is concentrated again, dried, crushed, and passed through a 1mm sieve to obtain a fine powder.

[0060] Step Four: Prepare Tablet Material

[0061] Mix the refined powder o...

Embodiment 2

[0066] Step 1: Natural Mineral Purification

[0067] Stir and soak 2 parts of montmorillonite ore soil and 3 parts of attapulgite clay with 100 parts of purified water for more than 50 hours, wait for them to fully expand, and then sieve through 200 mesh or more to separate large particles of impurity ore soil.

[0068] Step 2: Primary Silica

[0069] Use a spherical vibrating pulverizer to crush 3 parts of fine-pore (type A) silica gel particles and 2 parts of coarse-pore (type B) silica gel, and pass through a sieve of more than 400 mesh.

[0070] The third step: preparation of fine powder

[0071] Put the purified natural minerals purified in the first step and the silica gel powder treated in the second step into the grinder, grind for more than 60 hours, and centrifuge the materials in a high-speed tubular centrifuge (centrifuge speed: 2000 rpm Above), the material is concentrated again, dried, pulverized, and passed through a 1mm sieve to obtain a refined powder.

[0...

Embodiment 3

[0081] Others are the same as Example 1, and the difference is: use accounts for gross weight: 20% montmorillonite ore, 15% bentonite, 45% coarse-pored (B type) silica gel, 10% high-density polyethylene, 10% % low-density polyethylene, no auxiliary materials are used to make desiccant products.

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PUM

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Abstract

The invention relates to novel mineral silicon dioxide flake desiccant and a preparation method thereof. The desiccant comprises the following components in percentage by weight: 10-50% of mineral, 10-75% of silicon dioxide, 0-50% of high molecular materials and 0-10% of ingredients. Compared with the prior art, the novel mineral silicon dioxide flake desiccant can be more accordant with a desiccant holding space and can be used without packaging; moreover, the quantity of the desiccant placed in the space is greatly increased; the total moisture absorption amount is largely improved; the desiccant has huge application foreground and economic value.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a novel mineral silicon dioxide flake desiccant and a preparation method thereof. Background technique [0002] With the widespread use of desiccants, it is required that the desiccant be smaller in size and better fit the packaging container; it is also required that the desiccant is safe and reliable during use, has stable hygroscopic performance, and can be regenerated and used repeatedly. [0003] In recent years, bagged silica gel and other desiccants have been widely used. The main defect is that silica gel and other desiccants must be repacked with air-permeable non-woven fabrics or paper, and cannot be directly attached to the product packaging that requires desiccant. , and the bagged silica gel desiccant will fall and break, which may cause secondary pollution of the product; and the traditional bagged silica gel desiccant placement process can only be placed manually,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/28
Inventor 沈飞
Owner 昆山威胜干燥剂研发中心有限公司
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