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

Method for producing phosphate starch

A technology for transforming starch and phosphate ester, which is applied in the field of preparation of phosphate esterified starch, can solve the problems of high energy consumption, low esterification reaction efficiency, practical limitations, etc., and achieves reduced energy consumption, easy process control, and esterification reaction. Efficiency improvement effect

Inactive Publication Date: 2010-01-06
海南中科翔新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This high-temperature solid-state reaction has the disadvantages of high energy consumption and difficult process control
In addition, although the general "wet" process has the advantages of low reaction temperature, mild process, and uniform product quality, it is greatly limited in practice due to the low efficiency of the esterification reaction and the low content of combined phosphorus in the product.

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

[0023] Add 100Kg water and 80Kg corn starch into the reactor to make starch milk, then add 2.0Kg sodium phosphate, 1.6Kg sodium dihydrogen phosphate, 2.8Kg disodium hydrogen phosphate, 2Kg stearic acid polyoxyethylene ether, keep The stirring speed was 45 rpm, the temperature was raised to 30°C, the pH value was adjusted to 6.5, and the reaction was completed at a constant temperature for 3 hours. After centrifugation and air drying, the phosphated starch was obtained. The combined phosphorus content was 0.04%, and the whiteness was 90%.

Embodiment 2

[0025] Add 110Kg water and 80Kg cornstarch into the reactor to make starch milk, then add 5.8Kg sodium dihydrogen phosphate, 1.4Kg disodium hydrogen phosphate, 1.8Kg stearic acid polyoxyethylene ether, and keep the stirring speed at 60 rpm , the temperature was raised to 60°C, the pH value was adjusted to 5.0, and the reaction was completed at a constant temperature for 10 hours. After centrifugation and air drying, the phosphorylated starch was obtained. The combined phosphorus content was 0.15%, and the whiteness was 91%.

Embodiment 3

[0027] Add 100Kg water and 80Kg cornstarch into the reactor to make starch milk, then add 9.6Kg sodium dihydrogen phosphate, 1.2Kg disodium hydrogen phosphate, 2.5Kg stearic acid polyoxyethylene ether, and keep the stirring speed at 40 rpm , the temperature was raised to 58°C, the pH value was adjusted to 5.0, and the reaction was completed at a constant temperature for 8 hours. After centrifugation and air drying, the phosphated starch was obtained. The combined phosphorus content was 0.19%, and the whiteness was 93%.

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

PropertyMeasurementUnit
whitenessaaaaaaaaaa
whitenessaaaaaaaaaa
Login to View More

Abstract

A process for preparing the phosphoesterified starch includes such steps as proportionally adding phosphate mixture and polyoxyvinyl ether stearate as promoter to the starch milk, regulating pH=5.0-6.5, reacting for 3-10 hr, centrifugal separation, and drying.

Description

technical field [0001] The invention relates to a polysaccharide polymer, in particular to a method for preparing phosphated starch. Background technique [0002] Starch is a renewable agricultural primary processing product with stable and abundant sources and obvious cost-effective advantages. As a natural polysaccharide polymer, starch is widely used as an industrial raw material. In actual production, starch macromolecules are modified by means of heat, acid, alkali, oxidation, and enzyme preparations to obtain better product performance. Starch modified products are widely used in food, medicine, papermaking, textiles and other fields . [0003] Phosphated starch is a kind of starch modified product, which is anionic, insoluble or slightly soluble in water, and the paste liquid has transparency, good viscosity stability (acid resistance, heat resistance, shear resistance), retrogradation Weak, non-toxic and odorless, clear fragrance and other characteristics. It is u...

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): C08B31/02
Inventor 陈玉放马艳芳陈亚席陈文宁
Owner 海南中科翔新材料科技有限公司
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