A kind of method for preparing mortar auxiliary agent by sulfonated by-product organic acid

A technology of organic acid and by-products, applied in the field of preparation of building materials additives, can solve problems such as deep color, high impurity content, complex process, etc.

Active Publication Date: 2021-04-13
ZANYU TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic acid product has the disadvantages of low content, high impurity content, dark color, etc., and it is difficult to be used as an active raw material for civilian detergents
At present, various production plants dispose of it cheaply or use it as waste for environmental protection, which causes a waste of resources
[0005] CN 102311893A, 102311888A and 104451714A respectively disclose a recycling method of organic acid collected by a high-voltage electrostatic defogging system, which adopts organic acid and alkali to neutralize in the reaction kettle, then spray-dry after cooling and decolorizing, the process is complex and difficult Large-scale production, the economic benefit is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Put 400kg of water, 50kg of liquid caustic soda, and 250kg of calcium oxide into the enamel reaction kettle, and turn on the cooling water; after stirring evenly, add 200kg of AES organic acid at a speed of 200kg / h, and then add 800kg of AOS organic acid at a speed of 200kg / h to control The reaction temperature is below 50°C.

[0025] Product performance: The measured pH is 7.9, the active matter is 24.5%, and the solid content is 63.1%.

[0026] According to the requirements of JC / T2380-2016 plastering mortar additives, the ratio of additives and mortar is added according to the requirements of the manufacturer. The amount added in the present invention is 0.02% of the amount of cement added. The product obtained in Example 1 is added to the mortar, and then tested. The data is: the mortar consistency is 9.8cm, the consistency loss rate is 4% after 2 hours, and the compressive strength is 37MPa 28 days after solidification.

Embodiment 2

[0028] Put 400kg of water, 50kg of liquid alkali, and 200kg of calcium oxide into the enamel reaction kettle, and turn on the cooling water; after stirring evenly, add 200kg of AES organic acid at a speed of 200kg / h, and then add 800kg of AOS organic acid at a speed of 200kg / h to control The reaction temperature is below 50°C.

[0029] The measured pH of the product performance is 7.2, the active matter is 24.2%, and the solid content is 60.1%.

[0030] According to the requirements of the building material standard JC / T2380-2016, the ratio of additives and mortar is added according to the manufacturer's needs. The amount of the present invention is 0.02% of the amount of cement added. The product obtained in Example 2 is added to the mortar, and then the data obtained by testing It is: the mortar consistency is 9.6cm, the consistency loss rate is 4% after 2 hours, and the compressive strength is 37MPa 28 days after solidification.

Embodiment 3

[0032] Put 400kg of water, 100kg of liquid caustic soda, and 250kg of calcium oxide into the enamel reaction kettle, and turn on the cooling water; after stirring evenly, add 200kg of AES organic acid at a speed of 200kg / h, and then add 800kg of AOS organic acid at a speed of 200kg / h to control The reaction temperature is below 50°C.

[0033] The measured pH of the product performance is 8.5, the active matter is 26.8%, and the solid content is 68.1%.

[0034] According to the requirements of the building material standard JC / T2380-2016, the ratio of additives and mortar is added according to the manufacturer's needs. The amount of the present invention is 0.02% of the amount of cement added. The product obtained in Example 3 is added to the mortar, and then the data obtained by testing It is: the mortar consistency is 9.5cm, the consistency loss rate is 3% after 2 hours, and the compressive strength is 30MPa 28 days after solidification.

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Abstract

The invention relates to a preparation method of building material additives. The purpose is to provide a method for preparing mortar additives with sulfonated by-product organic acids as raw materials; the mortar prepared by the mortar additives produced by the method has good fluidity, and relatively excellent consistency loss rate and compressive strength. The technical solution is: a method for preparing mortar additives with sulfonated by-product organic acid as raw material, comprising the following steps: 1) adding water and neutralizer to the reaction kettle and stirring evenly; 2) adding sulfonated by-product organic acid Into the reaction kettle, stir until the neutralization reaction is completed; the mass ratio of the water, neutralizing agent and sulfonated by-product organic acid is 0.3~0.5:0.2~0.4:1 and the mass ratio of the neutralizing agent is 0.2 ~0.4:1 mixture of liquid caustic soda and calcium oxide; the sulfonated by-product organic acid is a mixture of AES organic acid and AOS organic acid with a mass ratio of 0.2~0.4:1.

Description

technical field [0001] The invention relates to a method for preparing building material additives, in particular to a method for preparing mortar additives by neutralizing sulfonated by-product organic acids. [0002] technical background [0003] Sulfonated by-product organic acids are all kinds of unqualified organic waste acids produced during the production of industrial cleaning agents by anionic surfactants and organic acids produced during tail gas treatment, specifically referring to SO in the gas phase 3 In sulfonation production, unqualified organic acids are produced when the product is started and stopped, and organic acids are produced when the sulfonation tail gas is purified by a high-voltage electrostatic demisting system. The main components are organic sulfonate (sulfuric acid ester), unreacted raw materials and sulfuric acid. [0004] The amount of sulfonation by-product organic acid depends on the sulfonation equipment and process control, and is general...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/16C04B103/44
CPCC04B40/0039C04B2103/44C04B24/16C04B22/147C04B22/143
Inventor 陶华东葛赞史立文方银军华文高
Owner ZANYU TECH GRP CO LTD
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