CN102746408A - Method for preparing hydroxypropyl starch ether - Google Patents
Method for preparing hydroxypropyl starch ether Download PDFInfo
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- CN102746408A CN102746408A CN2012101998707A CN201210199870A CN102746408A CN 102746408 A CN102746408 A CN 102746408A CN 2012101998707 A CN2012101998707 A CN 2012101998707A CN 201210199870 A CN201210199870 A CN 201210199870A CN 102746408 A CN102746408 A CN 102746408A
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- starch ether
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- hydroxypropylated starch
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- propylene oxide
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Abstract
The invention discloses a method for preparing hydroxypropyl starch ether, characterized by using corn starch as a raw material, epoxypropane as an etherifying agent, and glyoxal as a cross-linking agent, wherein the hydroxypropyl starch ether comprises 50 weight parts of ethanol as a diluent, 0.5 weight parts of water, 1.2 weight parts of sodium hydroxide, 10 weight parts of corn starch, 3.5 weight parts of epoxypropane, 0.5 weight parts of glyoxal, and 0.8 weight parts of hydrochloric acid. By using corn starch as the raw material to prepare the hydroxypropyl starch ether, the production cost of the hydroxypropyl starch ether is greatly reduced, the production capacity is raised, and the range of application is enlarged.
Description
Technical field
The present invention relates to a kind of method for preparing hydroxypropylated starch ether.
Background technology
Hydroxypropylated starch ether (HPS) is the powder of white, and good fluidity has good water-solubility, its aqueous solution clear, colorless, good stability.Acid, alkali are stablized, and burntization temperature is lower than ative starch, and cold and hot viscosity changes stable than ative starch.Using with salt, sucrose etc. does not have influence to viscosity.After the etherificate, ice melts stability and transparency all increases.
The purposes of hydroxypropylated starch ether has:
1, foodstuffs industry: can be used as tamanori, thickening material, suspension agent increases stability.
2, paper industry: as paper internal sizing and top sizing, make printing-ink distinct, even, reduce ink consumption, make glued membrane smooth.
3, textile industry: can be used as warp size, improve the wear resistance when weaving, and weaving efficiency, can also be used as printing gum.
4, medicine industry: can make the disintegrating agent of tablet, also can make the blood plasma extender.
5, oil production: the hydroxypropylated starch stabilizing borehole, improve borehole condition, play anti-collapse, effect such as flocculation drilling cuttings etc.
6, daily-use chemical industry: hydroxypropylated starch in daily-use chemical industry, makeup or coating with tackiness agent, suspension agent and thickening material.
7, hydroxypropylated starch also can be made the gelifying agent etc. of tackiness agent, coating or the organic liquid of material of construction.
Hydroxypropylated starch is a kind of chemically modified starch, carries out etherification reaction by propylene oxide and starch, and the hydroxyl in the substituted starch macromolecular structure becomes a kind of etherification starch.
China is the big producing country of corn, and corn resources is abundant, and is cheap, if can use W-Gum as feedstock production hydroxypropylated starch ether, with the cost of manufacture that reduces hydroxypropylated starch ether greatly, enlarges its turnout, enlarges its use range.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art; A kind of method for preparing hydroxypropylated starch ether is provided, and it uses W-Gum to be feedstock production hydroxypropylated starch ether, reduces the cost of manufacture of hydroxypropylated starch ether greatly; Enlarge its turnout, enlarge its use range.
For addressing the above problem, the present invention adopts following technical scheme:
The invention provides a kind of method for preparing hydroxypropylated starch ether, said method is for being raw material with the W-Gum, and propylene oxide is an etherifying agent, and oxalic dialdehyde is that linking agent prepares hydroxypropylated starch ether.
The parts by weight of raw materials proportioning of preparation hydroxypropylated starch ether is: 50 parts of ethanol are as thinner, 0.5 part in water, 1.2 parts in sodium hydroxide, 10 parts of W-Gums, 0.5 part of 3.5 parts of oxalic dialdehyde of propylene oxide, 0.8 part of hydrochloric acid;
Concrete preparation process is:
The first step, raw materials mix: in reaction kettle, behind adding ethanol, water, the sodium hydroxide, choline is warming up to 70 ℃, is incubated 30 minutes;
In second step, alkalization: above-mentioned alkali is cooled to 30 ℃, adds W-Gum, stirred 1 hour, temperature is controlled at 25-40 ℃; Carry out quaternization; Alkalization finishes, and after reaction kettle is evacuated to 0.05～0.07mpa, adds propylene oxide, and oxalic dialdehyde kept 30 minutes;
In the 3rd step, etherificate: temperature rises to 70-80 ℃, is incubated 3.0-4.0 hour;
The 4th step, neutralization washing: be cooled to below 40 ℃, add hydrochloric acid and neutralize, washing;
In the 5th step, whiz: with the centrifugal drying machine that is conveyed into of material, carry out dry materials through horizontal spiral centrifuge, the exsiccant material is pulverized the back packing.
The present invention uses W-Gum to be feedstock production hydroxypropylated starch ether, reduces the cost of manufacture of hydroxypropylated starch ether greatly, enlarges its turnout, enlarges its use range.
Embodiment
The parts by weight of raw materials proportioning of preparation hydroxypropylated starch ether is: 50 parts of ethanol are as thinner, 0.5 part in water, 1.2 parts in sodium hydroxide, 10 parts of W-Gums, 3.5 parts of propylene oxide, 0.5 part of oxalic dialdehyde, 0.8 part of hydrochloric acid;
Concrete preparation process is:
The first step, raw materials mix: in reaction kettle, behind adding ethanol, water, the sodium hydroxide, choline is warming up to 70 ℃, is incubated 30 minutes;
In second step, alkalization: above-mentioned alkali is cooled to 30 ℃, adds W-Gum, stirred 1 hour, temperature is controlled at 25-40 ℃; Carry out quaternization; Alkalization finishes, and after reaction kettle is evacuated to 0.05～0.07mpa, adds propylene oxide, and oxalic dialdehyde kept 30 minutes;
In the 3rd step, etherificate: temperature rises to 70-80 ℃, is incubated 3.0-4.0 hour;
The 4th step, neutralization washing: be cooled to below 40 ℃, add hydrochloric acid and neutralize, washing;
In the 5th step, whiz: with the centrifugal drying machine that is conveyed into of material, carry out dry materials through horizontal spiral centrifuge, the exsiccant material is pulverized the back packing.
What should explain at last is: obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among protection scope of the present invention.
Claims (2)
1. a method for preparing hydroxypropylated starch ether is characterized in that, said method is for being raw material with the W-Gum, and propylene oxide is an etherifying agent, and oxalic dialdehyde is that linking agent prepares hydroxypropylated starch ether.
2. the method for preparing the crosslinked hydroxypropylated starch ether of HPS-as claimed in claim 1 is characterized in that, the parts by weight of raw materials proportioning of preparation hydroxypropylated starch ether is: 50 parts of ethanol are as thinner; 0.5 part in water; 1.2 parts in sodium hydroxide, 10 parts of W-Gums, 3.5 parts of propylene oxide; 0.5 part of oxalic dialdehyde, 0.8 part of hydrochloric acid;
Concrete preparation process is:
The first step, raw materials mix: in reaction kettle, behind adding ethanol, water, the sodium hydroxide, choline is warming up to 70 ℃, is incubated 30 minutes;
In second step, alkalization: above-mentioned alkali is cooled to 30 ℃, adds W-Gum, stirred 1 hour, temperature is controlled at 25-40 ℃; Carry out quaternization; Alkalization finishes, and after reaction kettle is evacuated to 0.05～0.07mpa, adds propylene oxide, and oxalic dialdehyde kept 30 minutes;
In the 3rd step, etherificate: temperature rises to 70-80 ℃, is incubated 3.0-4.0 hour;
The 4th step, neutralization washing: be cooled to below 40 ℃, add hydrochloric acid and neutralize, washing;
In the 5th step, whiz: with the centrifugal drying machine that is conveyed into of material, carry out dry materials through horizontal spiral centrifuge, the exsiccant material is pulverized the back packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101998707A CN102746408A (en) | 2012-06-18 | 2012-06-18 | Method for preparing hydroxypropyl starch ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101998707A CN102746408A (en) | 2012-06-18 | 2012-06-18 | Method for preparing hydroxypropyl starch ether |
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| CN102746408A true CN102746408A (en) | 2012-10-24 |
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| CN2012101998707A Pending CN102746408A (en) | 2012-06-18 | 2012-06-18 | Method for preparing hydroxypropyl starch ether |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242458A (en) * | 2013-05-27 | 2013-08-14 | 江西鑫川实业有限公司 | Double-etherification modified starch and preparation method thereof |
| CN103803843A (en) * | 2013-12-30 | 2014-05-21 | 广东红墙新材料股份有限公司 | Viscosity regulator and preparation method thereof and self-leveling self-compacting concrete |
| CN107319321A (en) * | 2017-07-13 | 2017-11-07 | 诸城市东方食品有限公司 | A kind of strawberry pudding and preparation method thereof |
| CN108130756A (en) * | 2017-12-18 | 2018-06-08 | 苏州昕能胶体技术有限公司 | A kind of modified tamarind gum printing gum and preparation method thereof |
| CN110204623A (en) * | 2019-06-21 | 2019-09-06 | 东莞建泰生物科技有限公司 | A kind of hydroxypropyl acidified starch and its production technology and the application in bread |
| CN111518224A (en) * | 2020-06-16 | 2020-08-11 | 佛山市国农淀粉有限公司 | Preparation method of hydroxypropyl distarch phosphate for reducing chloropropanol byproduct content |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US592210A (en) * | 1897-10-19 | -bush-forth | ||
| US3219518A (en) * | 1963-03-28 | 1965-11-23 | Hercules Powder Co Ltd | Reaction product of dialdehyde with starch ether in paper |
| CN1548460A (en) * | 2003-05-22 | 2004-11-24 | 徐林坤 | Dry hydroxyalkyl starch producing process |
| CN1938389A (en) * | 2004-03-31 | 2007-03-28 | 巴斯福植物科学有限公司 | Use of hydroxypropylated high amylose content potato starches to achieve high kit numbers |
-
2012
- 2012-06-18 CN CN2012101998707A patent/CN102746408A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US592210A (en) * | 1897-10-19 | -bush-forth | ||
| US3219518A (en) * | 1963-03-28 | 1965-11-23 | Hercules Powder Co Ltd | Reaction product of dialdehyde with starch ether in paper |
| CN1548460A (en) * | 2003-05-22 | 2004-11-24 | 徐林坤 | Dry hydroxyalkyl starch producing process |
| CN1938389A (en) * | 2004-03-31 | 2007-03-28 | 巴斯福植物科学有限公司 | Use of hydroxypropylated high amylose content potato starches to achieve high kit numbers |
Non-Patent Citations (1)
| Title |
|---|
| 邹建等: "交联羟丙基玉米淀粉性质研究", 《粮油加工与食品机械》, no. 7, 31 July 2006 (2006-07-31), pages 84 - 87 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242458A (en) * | 2013-05-27 | 2013-08-14 | 江西鑫川实业有限公司 | Double-etherification modified starch and preparation method thereof |
| CN103242458B (en) * | 2013-05-27 | 2015-07-15 | 江西鑫川实业有限公司 | Double-etherification modified starch and preparation method thereof |
| CN103803843A (en) * | 2013-12-30 | 2014-05-21 | 广东红墙新材料股份有限公司 | Viscosity regulator and preparation method thereof and self-leveling self-compacting concrete |
| CN103803843B (en) * | 2013-12-30 | 2016-02-10 | 广东红墙新材料股份有限公司 | Viscosity modifier and preparation method thereof and Self-leveling self-compacting concrete |
| CN107319321A (en) * | 2017-07-13 | 2017-11-07 | 诸城市东方食品有限公司 | A kind of strawberry pudding and preparation method thereof |
| CN108130756A (en) * | 2017-12-18 | 2018-06-08 | 苏州昕能胶体技术有限公司 | A kind of modified tamarind gum printing gum and preparation method thereof |
| CN110204623A (en) * | 2019-06-21 | 2019-09-06 | 东莞建泰生物科技有限公司 | A kind of hydroxypropyl acidified starch and its production technology and the application in bread |
| CN111518224A (en) * | 2020-06-16 | 2020-08-11 | 佛山市国农淀粉有限公司 | Preparation method of hydroxypropyl distarch phosphate for reducing chloropropanol byproduct content |
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Application publication date: 20121024 |