Wood liquefier and method for preparing surfactant using liquidated wood

A surfactant and liquefaction agent technology, applied in the field of preparation of surfactants, to achieve mild reaction conditions, high liquefaction rate, and increase the effect of liquefaction rate

Inactive Publication Date: 2009-04-01
JIANGSU QIANGLIN BIO ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report for the preparation of surfactants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of wood liquefaction agent: Add 1mol of PET beverage bottle fragments into a 500ml four-neck flask equipped with 4mol of diethylene glycol, a stirrer, a thermometer, a reflux condenser and a nitrogen tube, then add 0.0424g of zinc acetate and mix well Stir and heat to 220°C, react under nitrogen protection for 2.5 hours, then cool at room temperature, and vacuum filter to remove a small amount of impurities to obtain a wood liquefaction agent.

[0016] Preparation of liquefied wood: get wood liquefaction agent 100g, poplar wood powder 30g, glycerin 20g, 2g mass concentration and be 98% H 2 SO 4 , into a 500ml four-necked flask equipped with a stirrer, a thermometer, a reflux condenser and a nitrogen tube, heated to 150°C with stirring in an oil bath, and reacted for 30 minutes. Cool to room temperature in an ice-water bath, then add absolute ethanol to dilute, vacuum filter, and wash the residue and the flask several times until it is colorless. The residu...

Embodiment 2

[0039]Preparation of wood liquefaction agent: Add 1mol of PET beverage bottle fragments into a 500ml four-neck flask equipped with 3mol of ethylene glycol with agitator, thermometer, reflux condenser and nitrogen tube, then add 0.0372g of manganese acetate and mix well Stir and heat to 220° C. under nitrogen protection for 3 h to react at room temperature, and vacuum filter to remove a small amount of impurities to obtain a liquefaction agent.

[0040] Preparation of liquefied wood: Take 100g of liquefier, 20g of Chinese fir powder, 25g of glycerin, and add 2g of HCl with a mass concentration of 36% into a 500ml four-necked flask equipped with a stirrer, a thermometer, a reflux condenser and a nitrogen tube, and stir and heat in an oil bath React at 150°C for 30 minutes. Cool to room temperature in an ice-water bath, then add absolute ethanol to dilute, vacuum filter, and wash the residue and the flask several times until it is colorless. The filtrate was removed by a rotary ...

Embodiment 3

[0043] Put 1mol of PET beverage bottle fragments into a 500ml four-neck flask with 2mol of diethylene glycol, equipped with a stirrer, a thermometer, a reflux condenser and a nitrogen tube, then add 0.0212g of zinc acetate, mix evenly and heat to 220°C under nitrogen The protection reaction was cooled at room temperature for 3 hours, and a small amount of impurities was removed by vacuum filtration to obtain liquefier A. Get liquefier A100g, poplar wood powder 30g, glycerin 20g, 98% H 2 SO 4 2g was added to a 500ml four-necked flask equipped with a stirrer, a thermometer, a reflux condenser and a nitrogen tube, stirred and heated in an oil bath at 150°C for 30min. Cool to room temperature in an ice-water bath, then add absolute ethanol to dilute, vacuum filter, and wash the residue and the flask several times until it is colorless. The filtrate was removed by a rotary evaporator to remove absolute ethanol to obtain a liquefied product with a total hydroxyl mass molar concent...

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Abstract

The invention provides a preparation method for a wood liquefacient. A discarded PET bottle is crashed into powder, which is mixed with polylol and added with 0.01-0.5wt% of catalyst, and the mixture is stirred uniformly and heated to react, thus obtaining the wood liquefacient. The invention also relates to a method for preparing a surfactant by using the liquefacient to liquefying wood, which includes the steps: 0.5-10wt% of inorganic acid catalyst and glycerin are added into the mixture of the liquefacient and the wood meal of broad leaved forests or coniferous forests, which reacts by heating to obtain a coarse liquefied wood product; the product is cooled to room temperature, diluted in absolute ethyl alcohol or acetone and then filtered in vacuum to form the filtrate, which is subsequently decompressed and distilled so as to obtain refined liquefied wood; the sodium hydroxide solution of the fully dissolved liquefied wood is added with propylene oxide according to the mass morality of total hydroxide radical to propylene oxide being 1:3-10 for reaction, and then epoxy ethane is entered for end capping, after that, the pH value is adjusted to 7, then the liquefied wood polyethenoxy ether of the surfactant is obtained as the final product.

Description

1. Technical field [0001] The invention relates to a method for preparing a surfactant by using liquefied wood, in particular to the preparation of a novel wood liquefaction agent and the method for preparing a surfactant through epoxidation modification of the liquefied wood. 2. Background technology [0002] Wood is renewable, naturally degradable, and recyclable, so it is considered to be the most promising material in the 21st century. However, because it is a natural polymer that is insoluble and infusible, it cannot be used in plastics like plastics. It can be processed and shaped in a flowing state or used as a chemical raw material. This property of wood limits the scope of its utilization. Due to the depletion of petroleum and coal, which are fossil resources, people began to seek to use wood resources. Liquefied wood is a newly developed product utilized as a chemical raw material. [0003] The research on wood liquefaction technology began in the 1980s. Japanese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00B01F17/52C09K23/52
Inventor 周永红冯国东刘红军郭晓昕
Owner JIANGSU QIANGLIN BIO ENERGY
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