Saponification slag recycling method and water-resistant curing agent for recycling

A technology of saponification residue and recycling, which is applied in the field of water-resistant curing agent for recycling, can solve problems such as secondary environmental pollution, and achieve the effects of reducing moisture content, preventing swelling, and being easy to exchange.

Active Publication Date: 2020-08-25
NANJING INST OF TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a saponified slag recycling method and a water-resistant curing agent for recycling, which are environmentally friendly and safe, and solve the secondary environment generated during the comprehensive utilization of saponified slag resources Pollution Risk Issues

Method used

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  • Saponification slag recycling method and water-resistant curing agent for recycling

Examples

Experimental program
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Effect test

Embodiment 1

[0048] A water-resistant curing agent for saponification slag recycling, comprising the following components in parts by mass:

[0049] Vegetable oil: mix 20 parts of castor oil, 20 parts of peanut oil, and 10 parts of rapeseed oil;

[0050] Silicone hydrophobic agent: 1 part A151;

[0051] Cement retarder: mix 10 parts of sodium lignosulfonate and 10 parts of CMC;

[0052] Diffuser: 5 parts of EL-20, 2 parts of Span-80, 1 part of sodium linoleate, 1 part of sodium oleate, 1 part of potassium oleate and mix well.

[0053]Under the condition of 50°C, vegetable oil and organosilicon hydrophobizing agent are metered and mixed uniformly to obtain component A; cement retarder and diffusing agent are metered and mixed, and 20% water is added to dilute and stirred uniformly to obtain component B; component A is added dropwise to In component B, keep a constant temperature of 50°C and stir evenly to obtain a water-resistant curing agent for saponification slag recycling.

[0054] A...

Embodiment 2

[0058] A water-resistant curing agent for saponification slag recycling, comprising the following components in parts by mass:

[0059] Vegetable oil: mix 20 parts of castor oil, 30 parts of peanut oil, and 30 parts of rapeseed oil;

[0060] Silicone hydrophobic agent: mix 2 parts of A151 and 3 parts of A171;

[0061] Cement retarder: mix 5 parts of sodium lignosulfonate and 5 parts of CMC;

[0062] Diffuser: 15 parts of EL-20, 5 parts of Span-80, 5 parts of Tween-20, 3 parts of sodium linoleate, 2 parts of sodium oleate and mix well.

[0063] The preparation method of the water-resistant curing agent for saponification slag recycling is the same as in Example 1.

[0064] A method for recycling saponification slag, comprising the following steps:

[0065] S1, pretreatment: mix fly ash and saponified slag B according to the dry weight of 40:60, and dry it in a waterproof stack for 25 days under natural conditions to obtain a saponified slag / fly ash mixture, control the moist...

Embodiment 3

[0068] A water-resistant curing agent for saponification slag recycling, comprising the following components in parts by mass:

[0069] Vegetable oil: mix 50 parts of castor oil, 30 parts of peanut oil, 50 parts of rapeseed oil, and 20 parts of sunflower oil;

[0070] Silicone hydrophobic agent: mix 5 parts A151, 3 parts A171, 2 parts A172;

[0071] Cement retarder: mix 30 parts of sodium lignosulfonate and 10 parts of CMC;

[0072] Diffuser: 15 parts of EL-20, 10 parts of Span-80, 10 parts of Tween-20, 5 parts of sodium linoleate, 5 parts of potassium linoleate, 5 parts of potassium oleate and mix well.

[0073] The preparation method of the water-resistant curing agent for saponification slag recycling is the same as in Example 1.

[0074] A method for recycling saponification slag, comprising the following steps:

[0075] S1, pretreatment: mix fly ash and saponified slag A according to the dry weight of 5:95, and dry it in a waterproof stack for 20 days under natural con...

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Abstract

The invention discloses a saponification slag recycling method and a water-resistant curing agent for recycling, and the method comprises the following steps: mixing saponification slag with fly ash,carrying out waterproof stacking under natural conditions, carrying out air drying to obtain a saponification slag/fly ash mixture, crushing, and sieving; diluting a water-resistant curing agent withwater, spraying the saponification slag/fly ash mixture, adding cement while stirring, uniformly mixing to obtain a mixture, paving, rolling, molding, and carrying out moisturizing maintenance to obtain resource cured saponification slag; the water-resistant curing agent comprises the following components in parts by mass: 50-150 parts of vegetable oil, 1-10 parts of an organic silicon hydrophobicagent, 10-40 parts of a cement retarder and 10-50 parts of a dispersing agent. The saponification slag recycling method is environment-friendly and safe, and solves the problem of secondary environmental pollution risk generated during saponification slag recycling comprehensive utilization.

Description

technical field [0001] The invention belongs to the technical field of industrial solid waste treatment, and in particular relates to a saponification slag recycling method and a water-resistant curing agent for recycling. Background technique [0002] Saponification slag mainly comes from the production of propylene oxide by the chlorohydrin method and the production of vinyl chloride by the calcium carbide method in the chemical industry. Because it is the waste residue produced in the saponification reaction stage, it is named saponification residue. Among them, every ton of propylene oxide produced will produce more than 2 tons of saponified slag. After years of accumulation, the stock of saponified slag in my country has already piled up like a mountain. On the one hand, the surface of a large amount of saponified slag dries and turns into powder, which floats with the wind and produces a large amount of floating dust, polluting the air, while the inside of the hardene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/42E01C3/04E01C3/06C04B18/04C04B18/08C04B24/08C04B103/65C04B111/27
CPCC04B28/04C04B40/0039E01C3/04E01C3/06C04B2103/65C04B2111/27C04B2111/0075C04B24/08C04B24/42C04B24/18C04B24/383C04B24/085C04B24/32C04B18/0481C04B18/08Y02W30/91
Inventor 陈正年刘云张凯铭吴佳辉丁晨晟姜锟潘新露
Owner NANJING INST OF TECH
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