Ethanol organic solvent-based vinasse cooking pulping method

A technology of organic solvent and distiller's grains, applied in textile and papermaking, fiber raw material processing and other directions, can solve the problems of environmental pollution, high cost, high energy consumption, etc., and achieve high whiteness, good paper strength and high safety.

Active Publication Date: 2019-04-26
王忠良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The distiller's grain pulping and papermaking method described in the above invention generally has problems such as high cost, high energy consumption, and environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for cooking and pulping distiller's grains with ethanol in an organic solvent, the steps comprising:

[0030] (1) Firstly add distiller's grains (highland barley distiller's grains) to dissolve and wash in water, the solid-to-liquid ratio is 1:10, stir and wash for 30 minutes, filter and separate to obtain the washed distiller's grains as raw material for pulping;

[0031] (2) Put the pulping raw material obtained in step (1) into a cooking pot, add it into 50%% ethanol solution according to the pulping raw material and pulping liquid with a solid-to-liquid ratio of 1:5g / ml, and then Pre-soak for 8 hours, and wait for use after the pre-soaking is completed;

[0032] (3) Add phosphoric acid additives to the pre-soaked pulping raw materials obtained in step (2). The amount of phosphoric acid added is 0.5% of the absolute dry mass of the pulping raw materials. After sealing the cooking pot, heat up. The heating time starts from 60°C. Raise the temperature for 40 ...

Embodiment 2

[0037] A method for cooking and pulping distiller's grains with ethanol in an organic solvent, the steps comprising:

[0038] (1) Firstly add water to dissolve and wash distiller's grains (sorghum distiller's grains) raw material, the solid-to-liquid ratio is 1:20, stir and wash for 20 minutes, filter and separate to obtain the washed distiller's grains as raw material for pulping;

[0039](2) Put the pulping raw material obtained in step (1) into a cooking pot, add it into 70% ethanol solution according to the pulping raw material and pulping liquid, the solid-to-liquid ratio is 1:10g / ml, and then preheat at room temperature Soak for 4 hours, then use after pre-soaking;

[0040] (3) Add phosphoric acid additives to the pre-soaked pulping raw materials obtained in step (2). The amount of phosphoric acid added is 1.0% of the absolute dry mass of the pulping raw materials. After sealing the cooking pot, heat up. The heating time starts from 60°C. Raise the temperature for 50 mi...

Embodiment 3

[0045] A method for cooking and pulping distiller's grains with ethanol in an organic solvent, the steps comprising:

[0046] (1) Firstly add distiller's grains (highland barley distiller's grains) to dissolve and wash in water, the solid-to-liquid ratio is 1:15, stir and wash for 25 minutes, filter and separate to obtain the washed distiller's grains as raw material for pulping;

[0047] (2) Put the pulping raw material obtained in step (1) into a cooking pot, add it into 60% ethanol solution according to the pulping raw material and pulping liquid, the solid-to-liquid ratio is 1:8g / ml, and then preheat at room temperature Soak for 6 hours, and use after pre-soaking;

[0048] (3) Add phosphoric acid additives to the pre-soaked pulping raw materials obtained in step (2). The amount of phosphoric acid added is 1.0% of the absolute dry mass of the pulping raw materials. After sealing the cooking pot, heat up. The heating time starts from 60°C. Raise the temperature for 50 minut...

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PUM

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Abstract

The invention relates to an ethanol organic solvent-based vinasse cooking pulping method, and belongs to the technical field of pulping. Winery leftover vinasse is used as a pulping raw material, andthe ethanol organic solvent-based vinasse cooking pulping method comprises the following steps: firstly adding water into the pulping raw material for washing protein, starch and other impurities in the vinasse, and after completion, performing filtering separation to obtain cleaned vinasse; placing the cleaned vinasse in a cooking pot, then adding a pulping organic solvent for cooking, and aftercompletion of cooking, separating pulp from waste liquid; washing the separated pulp with water, then placing in a pulp sieving machine and sieving to obtain clean vinasse paper pulp. The paper pulp prepared with the ethanol organic solvent-based vinasse cooking pulping method has the characteristics of low cost, solvent recyclability, high fine pulp yield, relatively high viscosity, relatively good strength and the like.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and in particular relates to a pulping method by cooking distillers grains ethanol with an organic solvent. Background technique [0002] Internationally, papermaking is the third largest industry after telecommunications and steel, and it is one of the important symbols of a country's economic development level. At present, the paper industry has gradually become one of the important industries in our country. The rapid development of China's economy has provided a huge growth space for the paper industry. The domestic paper industry has not been able to meet the huge domestic market demand, so that my country's paper industry has maintained a growth rate higher than GDP every year. "Currently, the production and consumption of China's paper industry are about 100 million tons respectively, ranking first in the world." China's forestry resources and industrial structure and othe...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21D5/02
CPCD21C5/00D21D5/02
Inventor 王忠良
Owner 王忠良
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