A kind of solid base catalyst and its preparation and application in the preparation of guaiacol glyceryl ether

A solid base catalyst, glycerol technology, applied in the preparation of organic compounds, organic chemistry, chemical instruments and methods, etc., can solve the problems of adverse effects on the environment and human body, high boiling point of solvent DMF, and many steps, and achieves low energy consumption, Easy to operate, environmentally friendly and easy to regenerate

Active Publication Date: 2016-07-13
ZHEJIANG HAIZHOU PHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw material p-toluenesulfonate mesityl glyceride used in this method comes from the reaction of mesityl glycerol and p-toluenesulfonyl chloride, the steps are numerous, and the boiling point of the solvent DMF is high, the energy consumption for removal is large, and a small amount of residue is harmful to the environment and adverse effects on the human body

Method used

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  • A kind of solid base catalyst and its preparation and application in the preparation of guaiacol glyceryl ether
  • A kind of solid base catalyst and its preparation and application in the preparation of guaiacol glyceryl ether
  • A kind of solid base catalyst and its preparation and application in the preparation of guaiacol glyceryl ether

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Take 100g γ-Al 2 o 3 (Wenzhou Jingjing Alumina Co., Ltd.), add 2g aluminum sol (Jiangyin Xiagang Chemical Factory) as a binder, add 15gMg(OAc) 2 , mix and grind for 1 hour, add 10g Ca(OH) 2 , add 1g NaOH, add 3g polyacrylamide (Henan Luoshan Zhongyuan Polymer Co., Ltd., molecular weight 8 million to 10 million) as an extrusion aid, continue mixing and grinding for 2 hours, add 20g of water, and extrude it into mm strips. Dry the product under infrared light for 5 hours, put it in an oven to dry at 100°C for 10 hours, and finally put it in a muffle furnace and bake it at 500°C for 4 hours to obtain a composite solid alkali catalyst. After cooling, put it in a desiccator for use.

Embodiment 2

[0037] Take 100g γ-Al 2 o 3 As a carrier, add 3g glycerin as a binder, add 15gMgO, mix and grind for 1 hour, add 10gCa(OH) 2 , add 1gKOH, add 5g polyacrylamide (Henan Luoshan Zhongyuan Polymer Co., Ltd., molecular weight 8 million to 10 million) as an extrusion aid, continue mixing and grinding for 2 hours, add an appropriate amount of water, and extrude it into mm strips. Dry the product under an infrared lamp for 1 hour, put it in an oven for 8 hours at 120°C, and finally place it in a muffle furnace for calcination at 550°C for 4 hours to obtain the composite solid alkali catalyst. After cooling, place it in a desiccator for use.

Embodiment 3

[0039] Take 100g γ-Al 2 o 3 , add 3g starch as binder, add 10gMgCO 3 , mix and grind for 0.5 hours, add 10g Ca(OH) 2 , add 0.5gNa 2 CO 3 , add 2g polyacrylamide (Henan Luoshan Zhongyuan Polymer Co., Ltd., molecular weight 8 million to 10 million) as extrusion aid, continue to mix and grind for 2 hours, add an appropriate amount of water, and extrude it into mm strips. The product was dried under an infrared lamp for 5 hours, placed in an oven for 6 hours at 100°C, and finally placed in a muffle furnace for 3 hours at 500°C to roast to obtain the compounded solid alkali catalyst, which was cooled and placed in a desiccator for later use.

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Abstract

The invention discloses a composite solid base catalyst, which is mainly made of components with the following mass ratio: carrier: γ‑Al 2 o 3 100 parts, loading components: 0.5-5 parts of binder, 1-25 parts of magnesium-containing compound, 1-25 parts of calcium-containing compound, 0.5-5 parts of polyacrylamide, 0.1-2 parts of inorganic base; the binder is One of the following: glycerin, starch, methylcellulose, polyacryl alcohol, aluminum sol, water glass; magnesium-containing compounds are one of the following: MgO, Mg(OH) 2 , MgCO 3 , Mg(OAc) 2 , MgCl 2 ;Calcium-containing compound is one of the following: CaO, Ca(OH) 2 , CaCO 3 , CaCl 2 ; The inorganic base is one of the following: NaOH, KOH, Na 2 CO 3 、K 2 CO 3 . The obtained catalyst is used for the preparation of guaiacol glyceryl ether, the operation is simple and environment-friendly, the energy consumption is small, and the yield is high.

Description

technical field [0001] The invention relates to a solid base catalyst and its preparation, and a method for preparing guaiacol glyceryl ether by using the solid base catalyst. Background technique [0002] Solid base catalysts have been paid more and more attention by scientific researchers because of their advantages such as mild reaction conditions, fast reaction rate, less side reactions, and recyclability. There are various types of solid bases and they are developing rapidly. Solid bases are classified into three types: organic solid bases, organic-inorganic composite solid bases, and inorganic solid bases. At present, many important reactions in industrial production are catalyzed by inorganic solid bases. Inorganic solid bases mainly include: metal oxide solid bases, hydrotalcite solid bases, and supported solid bases. Metal oxide solid bases mainly include alkali metal oxides, alkaline earth metal oxides, rare earth metal oxides and transition metal oxides. The ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24C07C43/23C07C41/26
Inventor 陈昌略王必伟徐大国裴文
Owner ZHEJIANG HAIZHOU PHARMA CO LTD
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