Papermaking cooking assistant

A cooking aid and water-retaining agent technology, applied in the field of papermaking, can solve the problems of long lignin decomposition and dissolution time, affecting pulp quality and yield, poor solubility, etc., achieve good scale inhibition effect, inhibit peeling reaction, The effect of improving whiteness

Inactive Publication Date: 2015-07-22
陈朝民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cooking aids used by most pulping enterprises have poor solubility and slow penetration into raw materials, and the decomposition and dissolution of lignin takes a long time, which causes the removed substances to be easily re-adsorbed by fibers and affects the quality of pulp. and yield

Method used

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  • Papermaking cooking assistant
  • Papermaking cooking assistant
  • Papermaking cooking assistant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh the following raw materials in parts by weight:

[0022]

[0023] The surfactant is a mixture of alkyl glucoside, sodium dodecylbenzenesulfonate and tea saponin with a mass ratio of 5:3:1.

[0024] The water retaining agent is a mixture of methylcellulose, hydroxypropylmethylcellulose and hydroxyethylmethylcellulose in a mass ratio of 6:4:1.

[0025] The preparation method of papermaking cooking aid is as follows:

[0026] Put the deionized water into the stirring tank, raise the temperature to 40°C, add the water retaining agent while stirring, stir until it is completely dissolved, then add green oxygen, surfactant, sodium polyaspartate and potassium phosphate in sequence, and dissolve completely Can.

Embodiment 2

[0028] Weigh the following raw materials in parts by weight:

[0029]

[0030]

[0031] The surfactant is a mixture of alkyl glucoside, sodium dodecylbenzenesulfonate and tea saponin with a mass ratio of 7:5:3.

[0032] The water-retaining agent is a mixture of methylcellulose, hydroxypropylmethylcellulose and hydroxyethylmethylcellulose with a mass ratio of 8:6:3.

[0033] The preparation method of papermaking cooking aid is as follows:

[0034] Put deionized water into a stirring tank, heat up to 55°C, add water retaining agent while stirring, stir until completely dissolved, then add green oxygen, surfactant, sodium polyaspartate and sodium phosphate in sequence, dissolve completely Can.

Embodiment 3

[0036] Weigh the following raw materials in parts by weight:

[0037]

[0038] The surfactant is a mixture of alkyl glucoside, sodium dodecylbenzenesulfonate and tea saponin with a mass ratio of 6:4:2.

[0039] The water retaining agent is a mixture of methylcellulose, hydroxypropylmethylcellulose and hydroxyethylmethylcellulose with a mass ratio of 7:5:2.

[0040] The preparation method of papermaking cooking aid is as follows:

[0041] Put deionized water into the stirring tank, heat up to 50°C, add water retaining agent while stirring, stir until completely dissolved, then add green oxygen, surfactant, sodium polyaspartate and potassium phosphate in sequence, dissolve completely Can.

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Abstract

The invention relates to the technical field of papermaking, and particularly relates to a papermaking cooking assistant which is prepared from the following raw materials in parts by weight: 10-20 parts of green oxygen, 12-24 parts of sulfated castor oil, 20-30 parts of surfactant, 5-10 parts of phosphate, 5-10 parts of water retention agent and 60-90 parts of deionized water. The papermaking cooking assistant greatly enhances the cooking effect, enhances the raw material permeability, improves the cooking uniformity, quickly adsorbs alkali liquor, increases the transmission speed of the reaction product in the raw materials, accelerates cooking, obviously shortens the cooking time, and greatly improves the pulp quality and paper strength.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a cooking aid for papermaking. Background technique [0002] In the process of pulping and cooking, how to increase the selectivity of delignification to minimize the degradation of carbohydrates has always been the focus of pulping research. The addition of cooking aids is currently one of the most convenient ways , good economic benefits can be obtained. [0003] The additives added in the cooking process mainly include organic cooking aids and inorganic cooking aids. Organic cooking aids mainly include anthraquinone (AQ), modified anthraquinone and its derivatives, hydroxylamine, green oxygen and Surfactants, etc. Inorganic cooking agents mainly include sodium polysulfide, sodium sulfite, phosphates, sodium borohydride and sodium dithionite. Among them, anthraquinone cooking agents are widely used in many countries, but because anthraquinone is insoluble in water and alk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/22
CPCD21C3/00
Inventor 陈朝民
Owner 陈朝民
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