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Environment-friendly glycerol and preparation method thereof

A glycerin and environmental protection technology, applied in the preparation of hydroxyl compounds, chemical instruments and methods, and the preparation of organic compounds, can solve the problems of difficulty in extracting glycerin, limiting the scope of application of glycerin, complex equipment, etc., and achieve energy saving and easy operation in the reaction process. The effect of energy saving and environmental protection in the process and low cost of production equipment

Inactive Publication Date: 2013-08-14
刘景全 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using epichlorohydrin to synthesize glycerin, the intermediate product is toxic, there are three wastes pollution, the equipment is complicated and demanding, and the energy consumption is large.
Synthesize glycerol by other methods, or contain harmful substances such as urea, heavy metal salt magnesium chloride, etc., thereby limiting the scope of application of the prepared glycerin; or the preparation method is complicated, the conditions are harsh, and the glycerin production rate is low
However, the glycerol prepared by fermentation has great difficulties in extracting glycerol from the fermentation broth, which affects the recovery rate and product quality of the extraction.

Method used

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  • Environment-friendly glycerol and preparation method thereof
  • Environment-friendly glycerol and preparation method thereof
  • Environment-friendly glycerol and preparation method thereof

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preparation example Construction

[0027] The invention provides a method for preparing environmentally friendly glycerin, that is, the sucrose produced by the carbonization process is dissolved into a saturated sugar solution at a certain temperature by high-purity water, and then the saturated sugar solution is reacted with sorbitol at a certain temperature, and then in the reaction Continuously add several dihydric alcohols into the liquid to carry out stirring reaction. Add appropriate amount of anti-corrosion and decolorizing agents, and through processes such as filtration, decolorization, and thickening, the finished glycerin is obtained.

[0028] The present invention mainly adopts sucrose and sorbitol as raw materials for preparation. Compared with the raw materials used in traditional saponified glycerin, these two raw materials overcome the problem of shortage of raw materials, and the cost is also cheaper. The use of sucrose produced by carbonization rather than sulfuration as raw material also avoi...

Embodiment 1

[0036] Get 260kg of sucrose made by carbonization and add it to a 100kg 5 10 In the high-purity water reactor 1, fully stir for 20-60 minutes until it is evenly stirred to obtain a saturated sucrose solution. During the mixing process, the temperature in the reactor 1 is controlled at about 50°C.

[0037] Pour the above-mentioned saturated sucrose solution into the reactor 2, and add 390kg of sorbitol in the reactor 2, fully stir for 10-30 minutes until the stirring is even and the reaction is complete, and maintain the temperature in the reactor 2 at 50 ℃ or so.

[0038] Add the ethylene glycol of 90kg and the propylene glycol of 90kg, the sodium benzoate of 2kg in the fully reacted reactor 2, fully stir for 40-80 minutes until the stirring is uniform and the reaction is complete; After this, add 26kg of gac in the reactor 2, fully stir for 40 -80 minutes until blended.

[0039] Filter the above reaction liquid through a filter, send the filtered liquid back to the reaction...

Embodiment 2

[0044] Get the sucrose that 260kg carbonization process is made, the sorbitol of 260kg, according to the viscosity that filters the colorless liquid that obtains from reactor 2, add an appropriate thickener, other conditions are with embodiment 1.

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Abstract

The invention discloses an environment-friendly glycerol and a preparation method and application thereof. In the invention, saturated sugar solution prepared by sucrose and produced by adopting quantitative carbonization technology reacts with sorbierite, then a certain quantity of dihydric alcohol is added into the reaction solution to be stirred for reaction, and then a proper amount of antiseptic and decolorizing agents are added, and the procedures of filtering, decolorization, thickening and the like are conducted to obtain the finished product, the glycerol. The method is easy in material obtaining and simple in technology; and the prepared environment-friendly glycerol has low cost, and can be widely applied to the fields of medicine, domestic chemistry engineering and the like.

Description

technical field [0001] The invention relates to the field of organic chemical industry, in particular to an environment-friendly glycerin, its preparation method and application. Background technique [0002] Glycerol is the simplest trihydric alcohol. It has the characteristics of neutrality, high penetration, high viscosity, no peculiar smell, non-toxic and sterile, colorless and transparent, so it can be used as a solvent and a raw material. , Textile, printing and dyeing, tobacco, papermaking, cosmetics, food and other fields have a wide range of applications, with more than 1400 uses, and it is an important organic chemical raw material. For example, traditional Chinese medicine pills need glycerin to be emulsified and bonded to form, and prevent dryness; cosmetic and cleaning products need glycerin as a solvent to moisturize and prevent corrosion of the skin; toothpaste and cigarettes need glycerin to moisturize, anti-wrinkle, and prevent dryness; Glycerin is used as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C31/22C07C29/00
Inventor 刘景全
Owner 刘景全
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