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
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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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