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Method for preparing bio-based zinc monostearate by catalyzing bio-based raw materials in one step

A technology of glycerol monostearate and monostearic acid, which is applied in the application field of biomass raw material conversion to replace petrochemical products and plastic additives, can solve problems such as inability to effectively suppress, and achieve high market competitiveness, easy operation and efficiency. Industrial production, wide-ranging effects

Active Publication Date: 2017-02-01
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the non-toxic and environmentally friendly PVC heat stabilizers recognized at home and abroad are calcium / zinc heat stabilizers, which have the characteristics of low price, non-toxic and environmental protection, easy biodegradation, harmless to the environment, and excellent performance. However, calcium / zinc stearate and other organic acid calcium / zinc salts are mainly used now. The disadvantage is that they cannot effectively suppress the "zinc burning" problem that occurs in the later stage of PVC. In recent years, researchers at home and abroad have developed a variety of Heat stabilizer to improve the comprehensive thermal stability of PVC resin

Method used

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  • Method for preparing bio-based zinc monostearate by catalyzing bio-based raw materials in one step
  • Method for preparing bio-based zinc monostearate by catalyzing bio-based raw materials in one step
  • Method for preparing bio-based zinc monostearate by catalyzing bio-based raw materials in one step

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In a 250mL three-necked flask, add 9.02g (0.0252mol) of glyceryl monostearate, 0.5125g (0.0063mol) of zinc oxide, and 0.0718g of anhydrous aluminum chloride, put them in an oil bath at 120°C, and stir them mechanically Reflux and react for 18 hours. After the reaction is completed, filter under reduced pressure, wash with ethanol and deionized water three times, and dry at 70° C. for 10 hours to obtain bio-based zinc monostearate.

Embodiment 2

[0020] In a 250mL three-necked flask, add 9.03g (0.0252mol) of glyceryl monostearate, 0.5120g (0.0063mol) of zinc oxide, and 0.0850g of anhydrous aluminum chloride, put them in an oil bath at 120°C, and stir them mechanically Reflux and react for 12 hours. After the reaction is completed, filter under reduced pressure, wash with ethanol and deionized water three times, and dry at 70° C. for 10 hours to obtain bio-based zinc monostearate.

Embodiment 3

[0022] In a 250mL three-neck flask, add 9.08g (0.0253mol) of glyceryl monostearate, 0.5138g (0.0063mol) of zinc oxide, and 0.0847g of anhydrous aluminum chloride, put them in an oil bath at 120°C, and stir them mechanically Reflux and react for 24 hours. After the reaction is completed, filter under reduced pressure, wash with ethanol and deionized water three times, and dry at 70° C. for 10 hours to obtain bio-based zinc monostearate.

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Abstract

The invention relates to a method for preparing bio-based zinc glyceryl monostearate by one-step catalysis of bio-based raw materials and belongs to the technical field of biomass raw material conversion replacement of a petroleum chemical product and plastic auxiliary agent application. The method comprises that zinc oxide powder and a food emulsifier glyceryl monostearate as raw materials undergo a reaction in the presence of anhydrous aluminum chloride as a catalyst to produce the bio-based zinc glyceryl monostearate. The structure of the bio-based zinc glyceryl monostearate is characterized and proved by infrared spectroscopy (FTIR) and X-ray diffraction. The prepared bio-based zinc glyceryl monostearate can be used as a main ingredient of a novel eco-friendly nontoxic polyvinyl chloride (PVC) heat stabilizer. The method has the advantages of easily available raw materials, low price, simple and safe one-step synthesis, and nontoxic, eco-friendly and easily degradable desired product.

Description

technical field [0001] The invention discloses a method for preparing bio-based glyceryl monostearate zinc by catalyzing bio-based raw materials in one step, and specifically relates to a method for preparing bio-based glyceryl monostearate zinc through a synthesis reaction of polyhydroxy organic compounds and transition metal oxides, belonging to The technical field of biomass raw material conversion to replace petrochemical products and the application of plastic additives. Background technique [0002] The catalytic conversion of low value-added biomass raw materials into high value-added fine chemicals to replace petrochemical products is a global research hotspot. Bio-based zinc monostearate zinc is a new type of fine chemical, the synthetic raw material is easy to get, cheap, non-toxic and environmentally friendly, etc. It has a wide range of uses, especially as a heat stabilizer for PVC. Zinc Burning", CN102093165A reacts with polyhydroxyglycerin and transition metal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/28C07C69/30C08K5/103C08L27/06
CPCC07C67/28C08K5/103C08L2201/08C08L27/06C07C69/30
Inventor 蒋平平黄元旦李志莹董玉明李晓婷
Owner JIANGNAN UNIV