Additive for physical straw pulping and use method thereof

An auxiliary and physical technology, which is applied in pulping of cellulose raw materials, anti-foaming pulping process, non-woody plant/crop pulp, etc., can solve the problems of high cost and unsatisfactory pulping and finishing effect of straw biomass, etc. Achieve the effects of saving additives, reducing water consumption in pulping, and reducing the amount of additives used

Inactive Publication Date: 2014-09-24
NANJING BIOFUNCTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the finishing effect of using textile fiber softener directly in straw biomass pulping is not ideal, and the cost is also high

Method used

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  • Additive for physical straw pulping and use method thereof
  • Additive for physical straw pulping and use method thereof
  • Additive for physical straw pulping and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An auxiliary agent for straw physical pulping, which is composed of the following components by weight percentage:

[0037]

[0038] After the above components are mixed, the auxiliary agent (and mother liquor) for straw physical pulping is diluted 10 times, and used as a softening auxiliary agent for preparing semi-chemical mechanical pulp from dry rice straw, and the diluted auxiliary agent is sprayed per ton of straw Agent 60kg, spray frequency 60Kg / hour. The degree of disintegration of the obtained rice straw pulp is 25.05°S. According to the market price, the cost of additives is 80-90 yuan for each ton of straw mechanical pulp produced.

[0039] As a comparative test, tap water was used as a control, 60kg of water was sprayed per ton of straw, and the spray frequency was 60Kg / hour. The degree of disintegration of the obtained rice straw pulp was 14.01°S, and more than 35% of the rice straw pulp floated on the water surface and could not be mixed with the chemi...

Embodiment 2

[0041] An auxiliary agent for straw physical pulping, which is composed of the following components by weight percentage:

[0042]

[0043] After the above components are mixed, the auxiliary agent (and mother liquor) for straw physical pulping is diluted 4 times, and it is used as a softening auxiliary agent for processing fresh wheat straw to prepare semi-chemical mechanical pulp. The diluted auxiliary agent is sprayed per ton of straw 30Kg, the spray frequency is 30Kg / hour. The degree of disintegration of the obtained wheat straw pulp is 27.03°S. According to the market price, the cost of additives is 95-110 yuan for producing 1 ton of straw mechanical pulp products.

[0044] As a comparative test, special paper softener AD1009Z6012 was used as a control, 30kg of water was sprayed per ton of straw, and the spray frequency was 30Kg / hour. For every ton of straw mechanical pulp produced, the cost of additives is 200~220 yuan; the degree of percussion of the obtained wheat ...

Embodiment 3

[0046] An auxiliary agent for straw physical pulping, which is composed of the following components by weight percentage:

[0047]

[0048]After the above components are mixed, the auxiliary agent (and mother liquor) for straw physical pulping is obtained. After the auxiliary agent is mixed, the mother liquor (that is, the above formula auxiliary agent) is diluted 20 times and used as a semi-chemical mechanical pulp for processing fresh reed straw. softening additives, 50Kg of diluted additives are sprayed per ton of straw, and the spraying frequency is 50Kg / hour.

[0049] The degree of disintegration of the obtained reed straw pulp is 21.6°S. According to the market price, the cost of additives is 90 yuan for the production of 1 ton of straw mechanical pulp.

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Abstract

The invention belongs to the fields of biochemical pulping and papermaking, and discloses an additive for physical straw pulping and a use method thereof. The additive for physical straw pulping comprises dimethylsilicone fluid, a fabric softening dispersion agent, sodium lauryl sulfate, formamide, a low-temperature defoaming agent TF-508C and water. After being diluted with water for 4 to 20 times, the additive is added uniformly in a pulping process by a spray device controlled through an electric pump, and the spraying frequency ranges from 2 to 20 L / H, preferably 8 to 20 L / H. The additive for physical straw pulping and the use method thereof realize the technical support of environment-friendly physical straw pulping, a spraying infiltration method is adopted to replace a traditional soaking boiling method, and therefore, the possibility of pollution is low. Environment-friendly production of the physical straw pulping is realized, and the additive used for performing spraying infiltration on straw can be reused. No pollution is caused in the whole pulping process, so that the zero pollution discharge in the papermaking production is realized.

Description

technical field [0001] The invention belongs to the fields of biochemical industry and pulping and papermaking, and relates to an auxiliary agent for physical pulping by utilizing plant straws and a using method thereof. Background technique [0002] As an important renewable resource, straw biomass has been researched and developed from different aspects at home and abroad. The industrialized papermaking industry and chemical fiber industry are all developed with the "single component" material as the object, thus wasting most of other biomass resources and polluting the environment. The development and utilization of most straw lignocellulose resources has not achieved breakthroughs in terms of technology and economy. [0003] The traditional production processes of the papermaking industry are mainly alkali method, ammonium sulfite method, neutral sodium sulfite method and semi-chemical method, etc. These traditional papermaking and pulping technologies have a large amou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C3/22D21C3/28D21H11/12
Inventor 陈集双覃佐东覃佳佳
Owner NANJING BIOFUNCTION CO LTD
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