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Environment-friendly glycerol and preparation method thereof

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

Inactive Publication Date: 2011-10-19
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

Examples

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preparation example Construction

[0027] The invention provides a preparation method of environment-friendly glycerin, that is, sucrose produced by a carbonization process is dissolved into a saturated sugar solution by high-purity water at a certain temperature, and then the saturated sugar solution is reacted with sorbitol at a certain temperature, and then the reaction is carried out at a certain temperature. Several glycols are continuously added to the liquid for stirring reaction. An appropriate amount of antiseptic and decolorizing agent is put in, and the finished glycerin is prepared through the processes of filtration, decolorization and thickening.

[0028] In the present invention, sucrose and sorbitol are mainly used for the preparation of raw materials. Compared with the raw materials used in traditional saponified glycerol, 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 sulfurizatio...

Embodiment 1

[0036] Take 260kg of sucrose made by carbonization, add it to a 100kg 5 10 In the reaction kettle 1 of high-purity water, fully stir for 20-60 minutes until the stirring is uniform to obtain a saturated sucrose solution, and control the temperature in the reaction kettle 1 to be about 50° C. during the mixing process.

[0037] The above-mentioned saturated sucrose solution was poured into the reaction kettle 2, and the sorbitol of 390kg was added in the reaction kettle 2, fully stirred for 10-30 minutes until the stirring was uniform and the reaction was complete, and the temperature in the reaction kettle 2 was maintained at 50 °C in the mixing process. ℃ or so.

[0038] Add the ethylene glycol of 90kg and the propylene glycol of 90kg in the reaction kettle 2 that has reacted completely, and the sodium benzoate of 2kg is fully stirred for 40-80 minutes until stirring is homogeneous and the reaction is complete; After this, the gac of 26kg is added in the reaction kettle 2, fu...

Embodiment 2

[0044] Get the sucrose that 260kg carbonization method makes, the sorbitol of 260kg, add appropriate thickening agent according to the viscosity of the colorless liquid that filters from reactor 2, other conditions are the same as 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, and a preparation method and application thereof. Background technique [0002] Glycerol is the simplest trihydric alcohol. It has the characteristics of neutrality, high permeability, high viscosity, no odor, non-toxic and sterile, colorless and transparent, so it can be used as both a solvent and a raw material. , textile, printing and dyeing, tobacco, paper, cosmetics, food and other fields have a wide range of applications, its uses are more than 1,400 kinds, and it is an important organic chemical raw material. For example, traditional Chinese medicine pills and powders need glycerin to be emulsified and bonded to prevent drying and solidification; makeup, beauty and cleaning products need glycerin as a solvent for moisturizing and anti-corrosion to the skin; toothpaste and cigarettes need glycerin for moisturizing, anti-wrinkle, and...

Claims

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Application Information

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