Production method of bamboo phenolic alcohol liquefied products

Abstract

The invention relates to a method for producing liquefied products by crushed small-diameter bamboo materials and bamboo material processing residues under the simultaneous effect of phenolic alcohol compounds. The invention has a purpose that a better liquefying effect can be obtained by various chemical ingredients in the bamboo materials by the provided method, in addition, the reaction temperature is lower, the reaction pressure is lower, and the safety is higher. The method has the technical scheme that a production method of bamboo phenolic alcohol liquefied products comprises the following steps that: 1) firstly, small-diameter bamboo or / and bamboo material processing residues are crushed to 20 to 80 meshes and are baked until the moisture content is lower than 10 percent for standby; 2) 100 mass parts of bamboo powder, 50 to 75 mass parts of phenol, 50 to 75 mass parts of polyethylene glycol and 15 to 30 mass parts of acid catalysts are added into a reaction container, the normal-pressure reaction lasts 30 to 90 minutes, the reaction temperature is 110 DEG C to 170 DEG C, the temperature is reduced to the room temperature after the reaction completion, and 15 to 30 mass parts of caustic soda solution is added for neutralization to obtain the bamboo material liquefied products.

Description

technical field

[0001] The invention relates to a method for producing liquefied products under the combined action of phenolic alcohol compounds after small-diameter bamboo and bamboo processing residues thereof are pulverized. Background technique

[0002] Bamboo is an important part of forest biomass resources, known as the "second forest". my country is located in the center of bamboo distribution in the world, and its bamboo forest area ranks first in the world, mainly distributed in 17 southern provinces. In the past 20 years, the industrial utilization of bamboo has played a huge role in alleviating the tense supply of timber in my country and promoting the development of the national economy. However, there are still many problems to be solved urgently in the industrialized utilization of bamboo at present. The outstanding performance is: the utilization rate of bamboo is low, such as the utilization rate of bamboo in bamboo plywood is about 40%, the utilization rat...

Examples

Embodiment 1

[0028] The small-diameter bamboo is crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 15 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 110 ℃ React at low temperature for 50 minutes, cool down to room temperature, add 15 parts by mass of caustic soda for neutralization, and obtain bamboo liquefaction product; the liquefaction rate is 73.28% after testing.

Embodiment 2

[0030] Small-diameter bamboo or bamboo processing residues are crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the phosphoric acid of 20 mass parts are added in the reaction container that has mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 130 ℃ The reaction was carried out for 50 minutes, the temperature was lowered, and 20 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; the liquefaction rate was 79.17% after testing.

Embodiment 3

[0032] The bamboo processing residue is crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 25 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 150 ℃ The reaction was carried out for 50 minutes, cooled to room temperature, and 25 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; the liquefaction rate was 87.25% after testing.

technical field

[0001] The invention relates to a method for producing liquefied products under the combined action of phenolic alcohol compounds after small-diameter bamboo and bamboo processing residues thereof are pulverized. Background technique

[0002] Bamboo is an important part of forest biomass resources, known as the "second forest". my country is located in the center of bamboo distribution in the world, and its bamboo forest area ranks first in the world, mainly distributed in 17 southern provinces. In the past 20 years, the industrial utilization of bamboo has played a huge role in alleviating the tense supply of timber in my country and promoting the development of the national economy. However, there are still many problems to be solved urgently in the industrialized utilization of bamboo at present. The outstanding performance is: the utilization rate of bamboo is low, such as the utilization rate of bamboo in bamboo plywood is about 40%, the utilization rat...

Examples

Embodiment 1

[0028] The small-diameter bamboo is crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 15 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 110 ℃ React at low temperature for 50 minutes, cool down to room temperature, add 15 parts by mass of caustic soda for neutralization, and obtain bamboo liquefaction product; the liquefaction rate is 73.28% after testing.

Embodiment 2

[0030] Small-diameter bamboo or bamboo processing residues are crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the phosphoric acid of 20 mass parts are added in the reaction container that has mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 130 ℃ The reaction was carried out for 50 minutes, the temperature was lowered, and 20 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; the liquefaction rate was 79.17% after testing.

Embodiment 3

[0032] The bamboo processing residue is crushed to 20-80 mesh bamboo powder and dried until the moisture content is less than 10% for later use. The phenol of 60 mass parts, the polyethylene glycol of 60 mass parts and the hydrochloric acid of 25 mass parts are added in the reaction vessel with mechanical stirring, thermometer and condensing reflux device, after stirring evenly, add the bamboo powder of 100 mass parts, 150 ℃ The reaction was carried out for 50 minutes, cooled to room temperature, and 25 parts by mass of caustic soda was added for neutralization to obtain a bamboo liquefaction product; the liquefaction rate was 87.25% after testing.