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Environment-friendly adhesive for powdery materials and preparation method of adhesive

A powdery material and binder technology, applied in the field of powdery material environmental protection binder and its preparation, can solve the problems of inability to meet environmental protection requirements, many impurities, increase in harmful elements, etc., to avoid high cost and wide Application prospects, the effect of reducing water content

Inactive Publication Date: 2019-01-04
杨红洲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, most of the recarburizers in the metallurgical industry are powders, and the addition process will cause a lot of smoke and dust, which need to be bonded into a block structure before being put in. The currently used binders cannot meet the requirements for use, or there are more impurities or pollution. Large, and these inorganic binders must have the side effect of increasing the harmful elements in the iron concentrate, and may deteriorate the metallurgical performance of the pellets, and even cause environmental pollution, failing to meet the requirements of environmental protection
In addition, the common interior wall putty powder in the field of building materials, the molding sand used in the casting process in the metallurgical industry, and the silica sand in the refractory industry all require the use of inorganic binders, but some inorganic binders cannot meet the requirements of the use. need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An environmentally friendly binder for powdery materials, comprising 120 parts by weight of chloroacetic acid, 70 parts of sodium carbonate, 310 parts of liquid caustic soda and 740 parts of cornstarch, wherein the concentration of said liquid caustic soda is 20%.

[0020] A preparation method of powdery material environment-friendly binder, comprising the following steps:

[0021] Step 1. According to the parts by weight, take chloroacetic acid and sodium carbonate, mix and stir for 65 minutes, and after fully reacting, get sodium chloroacetate for subsequent use;

[0022] Step 2, according to the parts by weight, take 65 parts of caustic soda and 315 parts of water, mix and stir for 10 minutes to obtain liquid caustic soda, set aside;

[0023] Step 3. According to the parts by weight, take cornstarch, mix it with the sodium chloroacetate obtained in step 1 and stir for 20 minutes, then slowly add the liquid caustic soda obtained in step 2, keep stirring for 10 minutes...

Embodiment 2

[0027] An environment-friendly binder for powdery materials, comprising 130 parts by weight of chloroacetic acid, 80 parts of sodium carbonate, 330 parts of liquid caustic soda and 760 parts of cornstarch, wherein the concentration of said liquid caustic soda is 25%.

[0028] A preparation method of powdery material environment-friendly binder, comprising the following steps:

[0029] Step 1. According to the parts by weight, take chloroacetic acid and sodium carbonate, mix and stir for 75 minutes, and after fully reacting, get sodium chloroacetate for subsequent use;

[0030] Step 2, according to the parts by weight, take 75 parts of caustic soda and 325 parts of water, mix and stir for 15 minutes to obtain liquid caustic soda, set aside;

[0031] Step 3. According to the parts by weight, take cornstarch, mix it with the sodium chloroacetate obtained in step 1 and stir for 30 minutes, then slowly add the liquid caustic soda obtained in step 2, keep stirring for 15 minutes, pu...

Embodiment 3

[0035] An environment-friendly binder for powdery materials comprises 125 parts by weight of chloroacetic acid, 75 parts of sodium carbonate, 320 parts of liquid caustic soda and 750 parts of cornstarch.

[0036] A preparation method of powdery material environment-friendly binder, comprising the following steps:

[0037] Step 1. According to the parts by weight, take chloroacetic acid and sodium carbonate, mix and stir for 70 minutes, and after fully reacting, get sodium chloroacetate for subsequent use;

[0038] Step 2, according to the parts by weight, take 70 parts of caustic soda and 320 parts of water, mix and stir for 13 minutes to obtain liquid caustic soda, set aside;

[0039] Step 3. According to the parts by weight, take cornstarch, mix it with the sodium chloroacetate obtained in step 1 and stir for 25 minutes, then slowly add the liquid caustic soda obtained in step 2, keep stirring for 13 minutes, put it in a container, and ferment for 9 hour, get a semi-finishe...

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Abstract

The invention provides an environment-friendly adhesive for powdery materials. The environment-friendly adhesive is characterized by being prepared from, by weight, 120-130 parts of chloroacetic acid,70-80 parts of sodium carbonate, 310-330 parts of caustic soda liquid and 740-760 parts of corn starch, wherein the concentration of the caustic soda liquid is 20-25%. According to the environment-friendly adhesive for the powdery materials, the corn starch as the main material cooperates with the caustic soda liquid so that the corn starch can be gelatinized and modified, the adhesive which is high in adhesive effect can be formed, and the adhesive is environmentally friendly, free of toxicity, high in adhesive performance and low in cost; the adhesive can be added into various nonmetallic powdery materials in use, the problem that an organic adhesive is high in cost is avoided, and the adhesive has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of binders, in particular to a powdery material environment-friendly binder and a preparation method thereof. Background technique [0002] Mineral powder molding can be divided into two categories: high temperature molding and cold consolidation molding according to the process temperature. The former is to consolidate the material through solid phase or liquid phase after high-temperature roasting. The role of the binder in high-temperature molding is mainly to improve the process strength and thermal properties of the agglomerate (pellet), and the final strength is achieved by high temperature. The process strength and final strength of the agglomerate (pellet) depend on the binder to maintain during cold consolidation molding, so it has high requirements for the binder. However, the cold consolidation forming process is simple, the process is short, the investment is small, and the energy consumption i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08K5/095C08K3/26C08K3/22
CPCC08K3/22C08K3/26C08K5/095C08K2003/262C08L3/02
Inventor 杨红洲
Owner 杨红洲
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