Papermaking chemical mechanical pulp presoak softener and preparation method thereof

A chemical machinery and softener technology, applied in the direction of adding inorganic compounds, can solve the problems of unsatisfactory product strength, heavy operation and maintenance workload, and unsatisfactory product strength, so as to shorten processing time, improve equipment efficiency, and use safely Effect

Inactive Publication Date: 2012-09-12
湖南美莱精化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pulping process requires high energy consumption, heavy equipment load, frequent operation and maintenance, low production capacity, and unsatisfactory product strength.
In order to reduce energy consumption, reduce equipment load, reduce equipment maintenance workload, increase production capacity and product strength, in the pulping process, a few manufacturers have tried common penetrants, such as Shandong Sun Paper Co., Ltd. tried Amazon’s penetrant , but it didn't perform well and has been disabled
Facts show that the existing pulping process has high energy consumption, heavy equipment load, heavy operation and maintenance workload, low production capacity, and unsatisfactory product strength. Problems have not been effectively resolved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The papermaking chemi-mechanical pulp presoak softener of the present embodiment is formulated by the following raw materials in parts by weight: sodium dodecyl sulfonate 8kg, fatty alcohol polyoxyethylene ether (3 ether) 12kg, alkyl phosphate (also Name mercerizing penetrant OPE, purchased from Shanghai Auxiliary Factory) 7kg, 98wt% concentrated sulfuric acid 1.5kg, anhydrous sodium sulfate 2.2kg, water 69.3kg.

[0016] Its preparation method: (1) weigh the raw materials of each component according to the weight ratio; (2) heat the weighed 69.3kg water to 25°C; (3) add 1.5kg of 98wt% concentrated sulfuric acid to the water, Heat to 50°C; (4) Add 8kg of sodium dodecylsulfonate and 12kg of fatty alcohol polyoxyethylene ether (3 ether), heat to 50°C; (5) Add 2.2kg of anhydrous sodium sulfate and alkyl phosphate (also known as mercerizing penetrant OPE) 7kg, heated to 55 ° C, stirred for 50 minutes, and it was ready.

[0017] The papermaking chemimechanical pulp presoakin...

Embodiment 2

[0019] The papermaking chemi-mechanical pulp presoaking softener of the present embodiment is formulated by the following raw materials in parts by weight: sodium cetyl sulfonate 9kg, fatty alcohol polyoxyethylene ether (5 ether) 11kg, alkyl phosphate (also Mercerizing penetrant OPE) 8kg, 98wt% concentrated sulfuric acid 2.5kg, anhydrous sodium sulfate 2kg, water 67.5kg.

[0020] Its preparation method: (1) Weigh the raw materials of each component according to the weight ratio; (2) Heat the weighed 67.5kg water to 30°C; (3) Add 2.5kg of 98wt% concentrated sulfuric acid and heat to 50°C; (4) Add 9kg of sodium cetyl sulfonate and 11kg of fatty alcohol polyoxyethylene ether (5 ether), and heat to 50°C; (5) Add 2kg of anhydrous sodium sulfate and alkyl phosphate (also known as Mercerizing penetrant (OPE) 8kg, heated to 55°C, stirred for 55 minutes, ready to serve.

[0021] The papermaking chemical mechanical pulp presoaking softener in this example was tested by Heli Company of ...

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PUM

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Abstract

The invention relates to a papermaking chemical mechanical pulp presoak softener and a preparation method thereof. The papermaking chemical mechanical pulp presoak softener is prepared from the following raw materials in percent by weight: 5-9% of alkyl sodium sulfonate, 10-16% of fatty alcohol-polyoxyethylene ether (2 ether-5 ether), 6-10% of alkyl phosphate, 1-4% of 98wt% concentrated sulfuric acid, 1-4% of anhydrous sodium sulfate and the balance of water. The invention also comprises the preparation method of the papermaking chemical mechanical pulp presoak softener; when being used for pulping, the papermaking chemical mechanical pulp presoak softener can reduce the power consumption by more than 2.3%, shorten the treatment time, improve the equipment efficiency and improve the productivity by more than 9%; and the yield of pulping can be improved by more than 2%.

Description

technical field [0001] The invention relates to an auxiliary agent used in the papermaking industry and a preparation method thereof, in particular to a papermaking chemical mechanical pulp presoaking softener and a preparation method thereof. Background technique [0002] At present, the production of chemical mechanical pulp in domestic papermaking is to chemically treat the raw materials and then carry out mechanical grinding. This pulping process has high energy consumption, heavy equipment load, frequent operation and maintenance, low production capacity and unsatisfactory product strength. In order to reduce energy consumption, reduce equipment load, reduce equipment maintenance workload, increase production capacity and product strength, in the pulping process, a few manufacturers have tried common penetrants, such as Shandong Sun Paper Co., Ltd. tried Amazon’s penetrant , but it didn't perform well and has been disabled. Facts show that the existing pulping process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/66
Inventor 廖国良雷志斌
Owner 湖南美莱精化有限公司
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