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Papermaking stewing accessory ingredient and preparation method thereof

A cooking aid and a technology for preparation steps, which are applied in the field of cooking aids for papermaking, can solve the problems of long lignin decomposition and dissolution time, influence on pulp quality and yield, poor solubility, etc., and achieve good ecological safety and compatibility. Solubility, good anti-scaling effect, anti-corrosion effect

Inactive Publication Date: 2015-07-08
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 stewing accessory ingredient and preparation method thereof
  • Papermaking stewing accessory ingredient and preparation method thereof
  • Papermaking stewing accessory ingredient and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Take by weight 25 parts of sodium dodecyl benzene sulfonate, 30 parts of alkyl glycosides, 5 parts of polyaspartic acid, 10 parts of anthrahydroquinone, 5 parts of sodium polysulfide, deionized water 120 copies;

[0029] (2) get the deionized water of half of the proportion and add it into the reactor, raise the water temperature to 55 ℃, add polyaspartic acid while stirring, make it dissolve completely;

[0030] (3) add sodium dodecylbenzenesulfonate and alkyl glycosides again, stir and homogenize 30min;

[0031] (4) add sodium polysulfide, continue to stir and homogenize for 30min, then add the remaining amount of deionized water, and raise the temperature to 95°C;

[0032] (5) Finally, add anthrahydroquinone, keep the temperature for 20 minutes, stir and homogenize for 35 minutes, and cool to room temperature.

Embodiment 2

[0034] (1) take by weight 28 parts of sodium dodecyl benzene sulfonate, 25 parts of alkyl glycosides, 6 parts of polyaspartic acid, 12 parts of anthrahydroquinone, 7 parts of sodium polysulfide, deionized water 140 copies;

[0035] (2) get the deionized water of half of the proportion and add it to the reactor, raise the water temperature to 58 ℃, add polyaspartic acid while stirring, and make it dissolve completely;

[0036] (3) add sodium dodecyl benzene sulfonate and alkyl glycoside again, stir and homogenize 33min;

[0037] (4) add sodium polysulfide, continue to stir and homogenize for 28min, then add the remaining amount of deionized water, and raise the temperature to 98°C;

[0038] (5) Finally, add anthrahydroquinone, keep the temperature for 23 minutes, stir and homogenize for 33 minutes, and cool to room temperature.

Embodiment 3

[0040] (1) Take by weight 30 parts of sodium dodecylbenzene sulfonate, 23 parts of alkyl glycosides, 7 parts of polyaspartic acid, 13 parts of anthrahydroquinone, 8 parts of sodium polysulfide, deionized water 150 copies;

[0041] (2) get the deionized water of half of the proportion and add it into the reactor, raise the water temperature to 60 ℃, add polyaspartic acid while stirring, and make it dissolve completely;

[0042] (3) add sodium dodecylbenzenesulfonate and alkyl glycosides again, stir and homogenize 35min;

[0043] (4) add sodium polysulfide, continue to stir and homogenize for 25min, then add the remaining amount of deionized water, and raise the temperature to 100°C;

[0044] (5) Finally, add anthrahydroquinone, keep the temperature for 25 minutes, stir and homogenize for 30 minutes, and cool to room temperature.

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Abstract

The invention belongs to the field of a papermaking technology, and in particular relates to a papermaking stewing accessory ingredient. The papermaking stewing accessory ingredient is prepared by the raw materials which comprise, by weight, 25-35 parts of sodium dodecyl benzene sulfonate, 15-30 parts of alkyl glucosides, 5-10 parts of poly aspartic acid, 10-16 parts of anthrahydroquinone, 5-12 parts of sodium polysulfide and 120-180 parts of deionized water. The invention further provides a preparation method of the papermaking stewing accessory ingredient. By means of the papermaking stewing accessory ingredient, the amount of alkali used for stewing is greatly reduced, the stewing time is shortened, the stewing temperature and the hardness of paper pulp can be lowered, the quality of the pulp is improved in all aspects, the yield of the pulp is improved, a pipeline is effectively prevented from forming scales, and continuous production is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and particularly relates to a cooking aid for papermaking. Background technique [0002] In the process of pulping and cooking, how to increase the selectivity of delignification and minimize the degradation of carbohydrates has always been the focus of pulping research. The addition of cooking aids is one of the most convenient methods at present. , can obtain good economic benefits. [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 are mainly sodium polysulfide, sodium sulfite, phosphate, sodium borohydride and sodium hydrosulfite. Among them, anthraquinone cooking agents are widely used in many countries, but because anthraquinone is insoluble in wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C3/22D21C3/02
CPCD21C3/222D21C3/024
Inventor 陈朝民
Owner 陈朝民
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