Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-wood fiber raw material cooking auxiliary agent and preparation process thereof

A technology of non-wood fibers and cooking aids, which is applied in cellulose raw material pulping, fiber raw material processing, textile and paper making, etc., can solve problems such as inapplicability, and achieve the effect of reducing dosage, obvious effect and improving strength

Inactive Publication Date: 2015-05-20
SHAANXI UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, my country's chemical pulping mainly uses anthraquinone and its derivatives as cooking aids, and such additives are developed by foreign companies for wood fiber raw materials, and are not suitable for the current situation of pulping with non-wood fiber raw materials in my country

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation process for cooking aids for non-wood fiber raw materials, comprising the following steps:

[0041] Step 1, weighing 1 part of anthraquinone, 2 parts of sodium dodecylbenzenesulfonate, 5 parts of fatty alcohol polyoxyethylene ether, 10 parts of dimethylsulfonic acid, and 2 parts of hydroxylamine according to the weight ratio;

[0042] Step 2: Prepare all the ingredients in Step 1 in proportion and add them to the reaction kettle, start stirring, and raise the temperature to 60°C and keep it warm for 150 minutes;

[0043] Step 3, then add 2 parts of sodium carbonate to the reaction kettle in step 2 for neutralization, react for 70 minutes, and keep stirring, and finally cool to 30°C to discharge the finished product.

Embodiment 2

[0045] A preparation process for cooking aids for non-wood fiber raw materials, comprising the following steps:

[0046] Step 1, weighing 3 parts of anthraquinone, 3 parts of sodium dodecylbenzenesulfonate, 6 parts of fatty alcohol polyoxyethylene ether, 15 parts of dimethylsulfonic acid, and 5 parts of hydroxylamine according to the weight ratio;

[0047] In step 2, prepare all the ingredients in step 1 in proportion and add them to the reaction kettle, start stirring, and raise the temperature to 80°C, and keep it warm for 100 minutes;

[0048] Step 3, then add 5 parts of sodium carbonate to the reaction kettle in step 2 for neutralization, react for 60 minutes, and keep stirring, and finally cool to 35°C to discharge the finished product.

Embodiment 3

[0050] A preparation process for cooking aids for non-wood fiber raw materials, comprising the following steps:

[0051] Step 1, weighing 5 parts of anthraquinone, 4 parts of sodium dodecylbenzenesulfonate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of dimethylsulfonic acid, and 8 parts of hydroxylamine according to the weight ratio;

[0052] Step 2, prepare all the ingredients in step 1 and add them to the reaction kettle in proportion, start stirring, and raise the temperature to 100°C and keep it warm for 60 minutes;

[0053] Step 3, then add 10 parts of sodium carbonate to the reaction kettle in step 2 for neutralization, react for 90 minutes, and keep stirring, and finally cool to 40°C to discharge the finished product.

[0054] The non-wood fiber raw material cooking aid of the present invention overcomes the disadvantage of traditional anthraquinone being insoluble in cooking liquid in terms of performance, has good solubility and permeability, can improv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a non-wood fiber raw material cooking auxiliary agent and a preparation process thereof. The non-wood fiber raw material cooking auxiliary agent comprises the following raw materials in part by weight: 1 to 5 parts of anthraquinone, 1 to 4 parts of sodium dodecyl benzene sulfonate, 1 to 10 parts of fatty alcohol-polyoxyethylene ether, 5 to 30 parts of dimethyl sulfonic acid and 1 to 8 parts of hydroxylamine. The non-wood fiber raw material cooking auxiliary agent not only can accelerate permeation, inhibit peeling reaction, promote removal of non-wood fiber raw material lignin, improve reaction performance in the cooking process and improve cooking uniformity of the raw materials, but also can reduce quantity of alkali for cooking, shorten cooking time, reduce the highest cooking temperature and improve pulp forming quality and yield.

Description

technical field [0001] The invention relates to a chemical pulping auxiliary agent, in particular to a cooking auxiliary agent for non-wood fiber raw materials and a preparation process thereof. Background technique [0002] In the process of chemical pulping, cooking aids largely affect the lignin removal rate, pulp quality, pulp yield, etc., and also affect the effect of subsequent bleaching. [0003] Compared with wood fiber raw materials, non-wood fiber raw materials have great differences in fiber chemical composition, cell structure, delignification principle, cooking process, etc. [0004] At present, my country's chemical pulping mainly uses anthraquinone and its derivatives as cooking aids, and such additives are developed by foreign companies for wood fiber raw materials, and are not suitable for the current situation of pulping with non-wood fiber raw materials in my country. Contents of the invention [0005] In order to overcome the above-mentioned shortcomin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D21C3/22
Inventor 李佩燚张美云党育红李鸿魁杜敏修慧娟殷学风张夏夏李晶马兰丁凯
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com