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A binder and molding device for rolling ball molding of silicon-aluminum-phosphorus molecular sieves

A silicon-aluminum-phosphorus molecular sieve and molding device technology, applied in non-polymer binder additives, binder types, starch binders, etc., can solve the problem of no rotary kiln, and achieve easy transformation, high production efficiency, The effect of less investment

Active Publication Date: 2019-10-01
CHINA TIANCHEN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently no reports on the use of rotary kilns for rolling ball forming

Method used

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  • A binder and molding device for rolling ball molding of silicon-aluminum-phosphorus molecular sieves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A binder for rolling ball forming of silicon-aluminum-phosphorus molecular sieves, comprising the following components in parts by weight: 5 parts of starch; 2 parts of dextrin; 0.1 part of borax; 0.1 part of polyvinyl alcohol; 1.2 parts of sodium hydroxide; 5 parts of carboxymethyl cellulose; 1 part of kale powder; 0 parts of formaldehyde solution; 85.6 parts of desalted water.

[0055] The starch includes raw starch and cooked starch, and the mass ratio of the two is 15:1.

[0056] The dextrin is white dextrin.

[0057] The mass concentration of the formaldehyde solution is 35%; the conductivity of the desalted water is ≤2μS / cm.

[0058] The present invention also provides a method for preparing the above-mentioned adhesive for rolling ball forming of the silicon-aluminum-phosphorous molecular sieve. After mixing the components, they are aged at 40° C. for 1.2 hours to obtain the adhesive.

[0059] When using the above-mentioned rolling ball forming device for rolli...

Embodiment 2

[0063] A binder for rolling ball forming of silicon-aluminum-phosphorus molecular sieves, comprising the following components in parts by weight: 12 parts of starch; 4 parts of dextrin; 0.4 parts of borax; 2.0 parts of polyvinyl alcohol; 1.0 parts of sodium hydroxide; 10 parts of carboxymethyl cellulose; 3 parts of kale powder; 0.03 parts of formaldehyde solution; 67.57 parts of desalted water.

[0064] The starch includes raw starch and cooked starch, and the mass ratio of the two is 20:1.

[0065] The dextrin is β-cyclodextrin.

[0066] The mass concentration of the formaldehyde solution is 35%; the conductivity of the desalted water is ≤2μS / cm.

[0067] The present invention also provides a method for preparing the above-mentioned adhesive for rolling ball forming of the silicon-aluminum-phosphorous molecular sieve. After mixing the components, they are aged at 60° C. for 2 hours to obtain the adhesive.

[0068] When using the above-mentioned rolling ball forming device f...

Embodiment 3

[0072] A binder for rolling ball forming of silicon-aluminum-phosphorus molecular sieves, comprising the following components in parts by weight: 14 parts of starch; 3 parts of dextrin; 1 part of borax; 0.5 parts of polyvinyl alcohol; 1.1 parts of sodium hydroxide; 10 parts of carboxymethyl cellulose; 2 parts of kale powder; 0.04 parts of formaldehyde solution; 68.36 parts of desalted water.

[0073] The starch includes raw starch and cooked starch, and the mass ratio of the two is 12:1.

[0074] The dextrin is a mixture of white dextrin and β-cyclodextrin, and the mass ratio of the two is 1:1.

[0075] The mass concentration of the formaldehyde solution is 35%; the conductivity of the desalted water is ≤2μS / cm.

[0076] The present invention also provides a method for preparing the above-mentioned adhesive for rolling ball forming of the silicon-aluminum-phosphorous molecular sieve. After mixing the components, they are aged at 50° C. for 1.5 hours to obtain the adhesive.

...

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Abstract

The invention provides an adhesive for rolling ball forming of a silicoaluminophosphate molecular sieve and a forming device. The adhesive comprises the following components in parts by weight: 5-20 parts of starch, 2-15 parts of dextrin, 0-2 parts of borax, 0-4.2 parts of polyvinyl alcohol, 0.4-1.4 parts of sodium hydroxide, 0-12 parts of carboxymethylcellulose, 0-4 parts of sesbania powder, 0-0.05 part of a formaldehyde solution and 60-100 parts of desalted water. The adhesive matched forming device performs rolling ball forming on the silicoaluminophosphate molecular sieve and dries the silicoaluminophosphate molecular sieve at the same time, so that the preparation flow of the silicoaluminophosphate molecular sieve is optimized.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to an adhesive and a molding device for rolling ball molding of silicon-aluminum-phosphorus molecular sieves. Background technique [0002] At present, there are many documents and patents on equipment and methods for drying materials, among which the rotary kiln is one of the important equipment for drying and roasting materials. Rotary kilns are divided into two types: external heating type and internal heating type, each of which has two types of continuous type and batch type, with high production efficiency. However, there is no relevant report on the use of rotary kiln for rolling ball forming. [0003] It is an ideal way to use the horizontal rotary kiln for the drying and roasting process of materials above the pilot scale and the rolling ball forming process, so as to control the particle size and hardness of the rolling ball forming materials. This ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/02C09J101/28C09J11/04C09J11/06B01J2/12B01J2/28
Inventor 李欢王海国刘俊生程卫山左宜赞石华陈晨
Owner CHINA TIANCHEN ENG