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Special scale remover/inhibitor for papermaking

A technology of anti-scaling agent and lubricant, applied in the directions of detergent compounding agent, detergent composition, surface active detergent composition, etc. Fouling and other problems, to achieve good anti-scaling effect, no carcinogenic hidden danger, anti-corrosion effect

Inactive Publication Date: 2015-09-02
陈朝民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In papermaking, how to increase the selectivity of delignification in the process of pulping and cooking to minimize the degradation of carbohydrates has always been the focus of pulping research. The addition of cooking aids is currently the most convenient One of the ways, currently the most widely used cooking aid is anthraquinone additive, but after using anthraquinone additive, the fouling in the pipeline is serious, which is not conducive to continuous production
[0003] After consulting the literature, there is no report about the special antifouling agent for papermaking.

Method used

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  • Special scale remover/inhibitor for papermaking
  • Special scale remover/inhibitor for papermaking
  • Special scale remover/inhibitor for papermaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take the following raw materials by weight:

[0019]

[0020] The lubricant is a mixture of polytetrafluoroethylene and sulfated castor oil with a mass ratio of 6:2.

[0021] The cellulose is a mixture of hydroxypropylmethylcellulose, hydroxyethylmethylcellulose and methylcellulose with a mass ratio of 1:3:2.

[0022] The thickener is a mixture of xanthan gum and carrageenan with a mass ratio of 3:2.

[0023] The preparation method of special cleaning and anti-scaling agent for papermaking is as follows:

[0024] Put deionized water into the reaction kettle, raise the temperature to 50°C, add polyaspartic acid and sodium diacetate lubricant, stir evenly, add cellulose while stirring, stir until completely dissolved, then add lubricant in turn , sodium dodecylbenzenesulfonate, sodium gluconate and thickener, stir for 60 minutes, keep warm for 100 minutes, and cool to room temperature.

Embodiment 2

[0026] Take the following raw materials by weight:

[0027]

[0028] The lubricant is a mixture of polytetrafluoroethylene and sulfated castor oil with a mass ratio of 7:3.

[0029] The cellulose is a mixture of hydroxypropylmethylcellulose, hydroxyethylmethylcellulose and methylcellulose with a mass ratio of 2:4:3.

[0030] The thickener is a mixture of xanthan gum and carrageenan with a mass ratio of 4:3.

[0031] The preparation method of special cleaning and anti-scaling agent for papermaking is as follows:

[0032] Put deionized water into the reaction kettle, raise the temperature to 55°C, add polyaspartic acid and sodium diacetate lubricant, stir evenly, add cellulose while stirring, stir until completely dissolved, then add lubricant in turn , sodium dodecylbenzenesulfonate, sodium gluconate and thickener, stir for 50 minutes, keep warm for 90 minutes, and cool to room temperature.

Embodiment 3

[0034] Take the following raw materials by weight:

[0035]

[0036] Described lubricant is the mixture of polytetrafluoroethylene and sulfated castor oil that mass ratio is 8:3;

[0037] Described cellulose is the mixture of hydroxypropyl methylcellulose, hydroxyethyl methylcellulose and methylcellulose with a mass ratio of 3:5:4;

[0038] The thickener is a mixture of xanthan gum and carrageenan with a mass ratio of 5:3.

[0039] The preparation method of special cleaning and anti-scaling agent for papermaking is as follows:

[0040] Put deionized water into the reaction kettle, raise the temperature to 60°C, add polyaspartic acid and sodium diacetate lubricant, stir evenly, add cellulose while stirring, stir until completely dissolved, then add lubricant in turn , sodium dodecylbenzenesulfonate, sodium gluconate and thickener, stir for 45 minutes, keep warm for 80 minutes, and cool to room temperature.

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Abstract

The invention relates to the technical field of scale removers / inhibitors, and in particular relates to a special scale remover / inhibitor for papermaking. The special scale remover / inhibitor is prepared from the following raw materials: 10-20 parts of polyaspartic acid, 15-30 parts of sodium dodecyl benzene sulfonate, 5-10 parts of a lubricating agent, 5-10 parts of cellulose, 6-12 parts of a thickening agent, 3-8 parts of sodium diacetate, 5-12 parts of sodium gluconate and 30-40 parts of deionized water. The special scale remover / inhibitor for papermaking provided by the invention is free of a scaling phenomenon and significant in scale removing / inhibiting effect. The adopted raw materials are nontoxic materials basically, and are free of a carcinogenic hidden danger; and through an experiment on the metal corrosivity, the result shows that the scale remover / inhibitor is free of corrosion on metals such as carbon steel, aluminum, copper and stainless steel basically.

Description

technical field [0001] The invention relates to the technical field of cleaning and antiscaling agents, in particular to a special cleaning and antiscaling agent for papermaking. Background technique [0002] In papermaking, how to increase the selectivity of delignification in the process of pulping and cooking to minimize the degradation of carbohydrates has always been the focus of pulping research. The addition of cooking aids is currently the most convenient One of the methods is that the most widely used cooking aids are anthraquinone additives, but after using anthraquinone additives, the fouling in the pipeline is serious, which is not conducive to continuous production. [0003] By consulting the literature, there is no report about the special scale-removing and anti-scaling agent for papermaking. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a special cleaning and anti-scaling agent for papermaking,...

Claims

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Application Information

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IPC IPC(8): C11D1/22C11D3/60C11D3/48C11D3/37C11D3/20
Inventor 陈朝民
Owner 陈朝民
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