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A kind of production method of dry-mixed mortar additive

A production method and technology for dry-mixed mortar, which are applied in separation methods, chemical instruments and methods, distillation and separation, etc., can solve problems such as difficult control, high equipment investment, and complex process.

Active Publication Date: 2017-11-21
NINGBO HUANYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the two materials are not miscible, specific drying equipment is required, which requires high equipment investment, high energy consumption, complex process, and difficult control
[0016] The disclosed method of CN 103524729B still has some technical defects in the removal of harmful substances, molecular design, and molecular weight control, and there are also some defects in the application of the mortar concrete admixture to dry-mixed mortar

Method used

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  • A kind of production method of dry-mixed mortar additive
  • A kind of production method of dry-mixed mortar additive
  • A kind of production method of dry-mixed mortar additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] Embodiment 1: the production of dry mix mortar additive

[0120] The implementation steps of this embodiment are as follows:

[0121] A. Hydrolysis reaction

[0122] Allow the distillation residue discharge that produces when producing dichloropropanol by the glycerin method to be sent in the hydrolysis reactor 3 through the first pump 1 by the pipeline, allow the 15% hydrochloric acid aqueous solution by weight to be sent by the pipeline through the second pump 2 simultaneously In the hydrolysis reaction kettle 3, the distillation residue discharge and the hydrochloric acid aqueous solution were subjected to a hydrolysis reaction for 12 hours at a temperature of 116° C. under normal pressure and stirring conditions according to their weight ratio of 1:0.52, to obtain a hydrolysis reaction material;

[0123] The hydrolysis reaction system composed of distillation residue effluent and hydrochloric acid aqueous solution is also undergoing a vaporization process while und...

Embodiment 2

[0138] Embodiment 2: the production of dry mix mortar additive

[0139] The implementation steps of this embodiment are as follows:

[0140] A. Hydrolysis reaction

[0141] Allow the distillation residue discharge that produces when producing dichloropropanol by the glycerin method to be sent in the hydrolysis reactor 3 through the first pump 1 by the pipeline, allow the 15% hydrochloric acid aqueous solution by weight to be sent by the pipeline through the second pump 2 simultaneously In the hydrolysis reaction kettle 3, the distillation residue discharge and the hydrochloric acid aqueous solution are subjected to a hydrolysis reaction for 10 hours at a temperature of 112° C., under normal pressure and stirring conditions according to their weight ratio of 1:0.55, to obtain a hydrolysis reaction material;

[0142] The hydrolysis reaction system composed of distillation residue effluent and hydrochloric acid aqueous solution is also undergoing a vaporization process while und...

Embodiment 3

[0157] Embodiment 3: the production of dry mix mortar additive

[0158] The implementation steps of this embodiment are as follows:

[0159] A. Hydrolysis reaction

[0160] Allow the distillation residue discharge that produces when producing dichloropropanol by the glycerin method to be sent in the hydrolysis reactor 3 through the first pump 1 by the pipeline, allow the 15% hydrochloric acid aqueous solution by weight to be sent by the pipeline through the second pump 2 simultaneously In the hydrolysis reaction kettle 3, the distillation residue discharge and the hydrochloric acid aqueous solution are subjected to a hydrolysis reaction for 8 hours at a temperature of 110° C. under normal pressure and stirring conditions according to their weight ratio of 1:0.6, to obtain a hydrolysis reaction material;

[0161] The hydrolysis reaction system composed of distillation residue effluent and hydrochloric acid aqueous solution is also undergoing a vaporization process while underg...

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Abstract

The invention relates to a production method of a dry-mixed mortar additive. The production method of the dry-mixed mortar additive comprises the steps of hydrolysis reaction, distillation, steam stripping, polymerization reaction, devolatilization and dispersive mixing. The production method of the dry-mixed mortar additive is simple and convenient in technological process and easy to operate and control, raw materials of the dry-mixed mortar additive are organic hazardous chemicals and solid waste, harmless treatment and resource utilization are realized, cost is low, and environmental protection is realized. The dry-mixed mortar additive obtained by adopting the production method provided by the invention has the advantages that water retaining capacity and thickness accord with national standard requirements, strength is more than or equal to 30% higher than the standard requirement, and the strength of the dry-mixed mortar additive is more than or equal to 25% higher than the strength of an existing mortar additive.

Description

【Technical field】 [0001] The invention belongs to the technical field of polymer material production. More specifically, the present invention relates to a method for producing dry-mixed mortar additives. 【Background technique】 [0002] Dry-mixed mortar is a kind of ready-mixed mortar, which is a new type of energy-saving green building material. The dry-mixed mortar is a mixture of cement, dry aggregate or powder, additives and other components determined according to performance, measured and mixed in a professional production plant in a certain proportion. Add water according to the specified ratio or mix the supporting components at the place of use. The use of ready-mixed mortar can improve construction quality, reduce construction costs and reduce urban smog. [0003] Dry-mixed mortar additive is a substance added to improve and adjust the performance of mortar. It is added and mixed into dry-mixed mortar products in dry-mixed mortar production plants according to r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/28C04B24/24B01D3/00
Inventor 童丽燕施德龙
Owner NINGBO HUANYANG CHEM