A kind of soil curing agent containing sulfonated animal and vegetable oil and its preparation method

A technology of soil curing agent and vegetable oil, which is applied in the direction of chemical instruments and methods, soil conditioning materials, fertilizer mixtures, etc., can solve the problems of poor durability, cumbersome preparation process, and high cost, and achieve improved cohesion, low cost, and simple method Effect

Inactive Publication Date: 2011-12-21
JIANGHAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current soil curing agent is mainly made of high polymer, which is not only expensive, but also has a cumbersome preparation process, and its durability is not good when used in water conservancy projects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 100 parts by weight of rapeseed oil was added into the sulfonation reactor, and 150 parts by weight of 98%wt concentrated sulfuric acid was added dropwise while stirring at 50°C. After reacting for 5 hours, 2.5 parts by weight of methyl silicone oil with a viscosity of 2000 cps was added. Adding parts by weight is 5 parts of emulsifier in the above-mentioned mixture again, and described emulsifier is the compound that the NP-4 (NP is alkylphenol polyoxyethylene ether) of 20%wt and the Tween-80 composition of 80%wt compound. Then add an aqueous solution of triethanolamine with a concentration of 50% wt to the above mixture until the pH value of the mixture reaches 1, and stir at a high speed for 15 minutes to obtain the soil curing agent 1.

Embodiment 2

[0028] 100 parts by weight of castor oil were added into the sulfonation reactor, and 180 parts by weight of 98%wt concentrated sulfuric acid was added dropwise while stirring at 60°C. After reacting for 7 hours, 5.6 parts by weight of methyl silicone oil with a viscosity of 1000 cps was added. Then, 28 parts by weight of an emulsifier were added to the above mixture, and the emulsifier was a compound composed of 10% wt of Span-80 and 90% wt of Tween-20. Then add ethanolamine and sodium hydroxide to the above mixture with a concentration of 50%wt aqueous solution prepared according to the mass ratio of 1:1 until the pH value of the mixture reaches 1, and then stir at high speed for 20 minutes to obtain the soil curing agent 2.

Embodiment 3

[0030] 100 parts by weight of soybean oil are added into the sulfonation reactor, and 200 parts by weight of 98%wt concentrated sulfuric acid is added dropwise while stirring at 70°C. After reacting for 8 hours, 9 parts by weight of methyl silicone oil with a viscosity of 500 cps were added. Adding parts by weight in the above-mentioned mixture is 12 parts of emulsifier again, and described emulsifier is TX-10 (TX is the condensation product of alkylphenol and ethylene oxide) of 30%wt, the Span-60 of 25%wt and A compound composed of 45%wt Tween-60. Then add an aqueous solution of diethanolamine with a concentration of 50% wt to the above mixture until the pH value of the mixture reaches 1, and then stir at a high speed for 25 minutes to obtain the soil curing agent 3 .

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Abstract

The invention provides a soil curing agent containing sulfonated animal and vegetable oils, and also provides a preparation method of the soil curing agent, the steps comprising: adding 100 parts of animal and vegetable oils into a sulfonation reactor, Add 150-200 parts of concentrated sulfuric acid dropwise while stirring at 70°C, and react for 5-8 hours; add 2.5-15 parts of silicone oil defoamer after the sulfonation reaction is completed; then add 5-45 parts of Emulsifier; adding an appropriate amount of alkaline aqueous solution to the above mixture until the pH value of the mixture reaches 1, and the mixture obtained after stirring is the soil curing agent. The raw material of the invention adopts simple and easy-to-obtain animal and vegetable oils, and the cost is low. The preparation process only needs to carry out a simple sulfonation reaction, and then mix evenly with silicone oil defoamer and emulsifier, and the method is simple. The effect achieved by the invention can enhance the mechanical properties and water stability of the soil, so it can be widely used in industry and has strong practicability.

Description

technical field [0001] The invention relates to a soil curing agent, in particular to a soil curing agent containing sulfonated animal and vegetable oils, and also relates to a preparation method of the soil curing agent containing sulfonated animal and vegetable oils. Background technique [0002] Soil curing agent refers to mixing materials synthesized from a variety of inorganic and organic materials into the soil to be reinforced, and then mixing and compacting to achieve the purpose of curing the soil. This kind of material synthesized from a variety of inorganic and organic materials The material is called a soil stabilizer. The use of soil curing agent can replace a large amount of traditional road construction materials such as lime, cement, fly ash, gravel, gravel, etc., which can not only save resources, energy, land, protect vegetation, but also greatly reduce the emission of greenhouse gases such as carbon dioxide. It is beneficial to the protection of the ecolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K103/00
Inventor 余国贤万昆李忠铭董建军尹作仿廖波蒙志锦
Owner JIANGHAN UNIVERSITY
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