CN104072619A - Method for preparing carboxymethylcellulose by using potato residues - Google Patents
Method for preparing carboxymethylcellulose by using potato residues Download PDFInfo
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- CN104072619A CN104072619A CN201410319532.1A CN201410319532A CN104072619A CN 104072619 A CN104072619 A CN 104072619A CN 201410319532 A CN201410319532 A CN 201410319532A CN 104072619 A CN104072619 A CN 104072619A
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Abstract
The invention discloses a method for preparing carboxymethylcellulose by using potato residues. The method mainly comprises the following steps: first, continuously stirring 10g of dried potato residues to disperse into 50g of deionized water; then, adding 0.83-1.65g of sodium hydroxide to soak at normal temperature for 8 hours; then, alkalizing at 35 DEG C for 1 hour; heating to 70 DEG C and then adding 2.40g of sodium chloroacetate; after reaction, taking out and drying; smashing and grinding; and repeating the steps and repeating reaction for 3 times to obtain the carboxymethylcellulose with the degree of substitution being 0.19-1.05.
Description
Technical field
The present invention relates to the anti-soil deposition agent again for being applied to detergents and cosmetic articles for washing, the dyeing and printing auxiliary of textile industry, the sizing agent of paper industry, the preparation method of the mud drilling agent of the tackiness agent of feed and ceramic industry and oilfield exploitation and the carboxymethyl cellulose of water retaining, refers to the method for preparing carboxymethyl cellulose taking potato residues, sodium chloroacetate as main raw material especially.
Background technology
Carboxymethyl cellulose is a kind of water-soluble cellulose ether, and what have practical value is its sodium salt.So generally speaking carboxymethyl cellulose just refers to Xylo-Mucine.The raw material of preparing carboxymethyl cellulose is generally cotton or linters.Because this cost of material is higher, make the high expensive of carboxymethyl cellulose product.
Potato residues is in yam starch production process, and a kind of main component of generation is the by product of water, cell debris, Mierocrystalline cellulose and remaining starch granules.Fresh potato slag water content, up to 80%, is carried disease germs nearly 33 kinds certainly, is difficult for storing, transporting, and putrid and deteriorated rear generation stench, causes environmental pollution; If dry high cost, increase business burden, bury processing usually used as feed or as waste residue, but can cause the pollution of soil and groundwater, utilize degree lower simultaneously.In potato residue, contain a large amount of Mierocrystalline celluloses, there is very high value of exploiting and utilizing.
It is raw material that this law adopts the waste potato residues producing in yam starch production process, potato residues is made after simple alkaline purification to alkalization Mierocrystalline cellulose, then gradation is at a lower temperature reacted with sodium chloroacetate, final oven dry makes carboxymethyl cellulose product, present method can utilization of waste material alleviate environmental pressure, can significantly reduce costs again, there is good practicality and marketing.
Summary of the invention
The technical problem to be solved in the present invention is to provide the method for preparing carboxymethyl cellulose with potato residues, this preparation method prepares carboxymethyl cellulose taking potato residues, sodium hydroxide, sodium chloroacetate as main raw material, through rational proportion, make carboxymethyl cellulose by certain technological process.
Technical problem of the present invention is solved by following scheme: the method for preparing carboxymethyl cellulose with potato residues, it is characterized in that: first potato residues dry 10g is distributed in 50g deionized water under constantly stirring, then add 0.83g-1.65g sodium hydroxide soak at room temperature 8 hours, again 35 DEG C alkalization 1 hour, after being warmed up to 70 DEG C, add 2.40g sodium chloroacetate, dry at 70 DEG C after reaction 2h, after pulverizing and grinding, repeat above-mentioned steps, so repeatedly react three times, can obtain the carboxymethyl cellulose product of substitution value between 0.19-1.05.
Advantage of the present invention is: 1, effectively realize turning waste into wealth of potato residues, solve potato residues contaminate environment in industrial production and the problem that cannot rationally process.2, this product, taking potato residues as raw material, because potato residues contains a large amount of Mierocrystalline celluloses, thereby reduces raw materials cost greatly.3, the raw material of producing this product is potato residues, and potato residues derives from potato, potato is the very large agricultural-food of the northern area of China output, and the promotion conference of this product is expanded out a new road to the deep processing of the northern area of China agricultural-food, and peasant is increased income.4, the method cost is low and simple to operate, has greatly simplified preparation technology.5, in technological process, add sodium hydroxide and sodium chloroacetate by gradation after being ground to small particle size, can greatly increase reaction specific surface, improve etherification reaction speed and etherificate degree.
Proportioning raw materials in the present invention and preparation technology compare from the technique of other products all have different significantly, specific as follows: the proportioning raw materials of (1) reactant is the mass ratio of potato residues, sodium hydroxide, sodium chloroacetate.Proportioning raw materials is one of important factor affecting substituted in reaction degree.(2) preparation process point secondary response after mechanical disintegration is ground to small particle size prepare carboxymethyl cellulose more traditional once add reaction contact gear ratio surface much bigger and significantly improve substitution value (3) temperature of reaction and the reaction times all first soaks compared with good a lot (4) this reaction preparation technologies of traditional method the etherificate that then heats up that alkalizes again, then drying and crushing reaction repeated three times again, simple to operate, instrument is cheap and easy to get.
brief description of the drawings: Fig. 1 prepares the process flow sheet of the carboxymethyl cellulose of different degree of substitution with potato residues
Fig. 2 prepares the infrared spectrogram of the carboxymethyl cellulose of different degree of substitution with potato residues.
Embodiment:
Embodiment 1: measure 50.0ml deionized water and join in reaction vessel, weigh 10g potato residues, under the condition constantly stirring, add potato residues.Take 0.83g dissolution of sodium hydroxide in 5ml deionized water, until heat release completely and sodium hydroxide joined after dissolving completely and in reaction vessel, soaked 8h, then under constantly stirring, be warmed up to 35 DEG C of alkalization 1h, accurately take 2.40g sodium chloroacetate dissolved in 10ml deionized water, after being warmed up to 70 DEG C, under agitation slowly add above-mentioned solution etherificate 2h, after being dried, being crushed to 80 orders, repeat above-mentioned steps three times, obtain substitution value and be 0.19 carboxymethyl cellulose product;
Embodiment 2: measure 50.0ml deionized water and join in reaction vessel, weigh 10g potato residues, under the condition constantly stirring, add potato residues.Take 1.05g dissolution of sodium hydroxide in 5ml deionized water, until heat release completely and sodium hydroxide joined after dissolving completely and in reaction vessel, soaked 8h, then under constantly stirring, be warmed up to 35 DEG C of alkalization 1h, accurately take 2.40g sodium chloroacetate dissolved in 10ml deionized water, after being warmed up to 70 DEG C, under agitation slowly add above-mentioned solution etherificate 2h, after being dried, being crushed to 80 orders, repeat above-mentioned steps three times, obtain substitution value and be 0.35 carboxymethyl cellulose product;
Embodiment 3: measure 50.0ml deionized water and join in reaction vessel, weigh 10g potato residues, under the condition constantly stirring, add potato residues.Take 1.24g dissolution of sodium hydroxide in 5ml deionized water, until heat release completely and sodium hydroxide joined after dissolving completely and in reaction vessel, soaked 8h, then under constantly stirring, be warmed up to 35 DEG C of alkalization 1h, accurately take 2.40g sodium chloroacetate dissolved in 10ml deionized water, after being warmed up to 70 DEG C, under agitation slowly add above-mentioned solution etherificate 2h, after being dried, being crushed to 80 orders, repeat above-mentioned steps three times, obtain substitution value and be 0.58 carboxymethyl cellulose product;
Embodiment 4: measure 50.0ml deionized water and join in reaction vessel, weigh 10g potato residues, under the condition constantly stirring, add potato residues.Take 1.35g dissolution of sodium hydroxide in 5ml deionized water, until heat release completely and sodium hydroxide joined after dissolving completely and in reaction vessel, soaked 8h, then under constantly stirring, be warmed up to 35 DEG C of alkalization 1h, accurately take 2.40g sodium chloroacetate dissolved in 10ml deionized water, after being warmed up to 70 DEG C, under agitation slowly add above-mentioned solution etherificate 2h, after being dried, being crushed to 80 orders, repeat above-mentioned steps three times, obtain substitution value and be 0.83 carboxymethyl cellulose product;
Embodiment 5: measure 50.0ml deionized water and join in reaction vessel, weigh 10g potato residues, under the condition constantly stirring, add potato residues.Take 1.65g dissolution of sodium hydroxide in 5ml deionized water, until heat release completely and sodium hydroxide joined after dissolving completely and in reaction vessel, soaked 8h, then under constantly stirring, be warmed up to 35 DEG C of alkalization 1h, accurately take 2.40g sodium chloroacetate dissolved in 10ml deionized water, after being warmed up to 70 DEG C, under agitation slowly add above-mentioned solution etherificate 2h, after being dried, being crushed to 80 orders, repeat above-mentioned steps three times, obtain substitution value and be 1.05 carboxymethyl cellulose.
Claims (3)
1. the method for preparing carboxymethyl cellulose with potato residues is characterized in that: first potato residues dry 10g is distributed in 50g deionized water under constantly stirring, then add 0.83g-1.65g sodium hydroxide carry out soak at room temperature 8 hours, under 35 DEG C of water bath condition, alkalize 1 hour again, after being warmed up to 70 DEG C, add 2.40g sodium chloroacetate, after reaction 2h, take out dry, after pulverizing and grinding, repeat above-mentioned steps, repeatedly react three times, get final product to obtain the carboxymethyl cellulose product of substitution value between 0.19-1.05.
2. this technique preparation cost is cheap, and utilization of waste material effectively solves the problem that potato residues causes environment, and greatly widens the deep processing of potato, for peasant increases income.
3. there were significant differences compared with the traditional preparation method of industry in this technical process, and technique is simple, is beneficial to the marketization and promotes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410319532.1A CN104072619A (en) | 2014-07-07 | 2014-07-07 | Method for preparing carboxymethylcellulose by using potato residues |
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| CN201410319532.1A CN104072619A (en) | 2014-07-07 | 2014-07-07 | Method for preparing carboxymethylcellulose by using potato residues |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761648A (en) * | 2015-04-15 | 2015-07-08 | 桂林理工大学 | Method for preparing nanocellulose at low energy consumption |
| CN106362705A (en) * | 2016-11-01 | 2017-02-01 | 内江师范学院 | Carboxymethyl cationic dye adsorption material prepared from paper pulp fiber, preparation method and application |
| CN106587107A (en) * | 2016-11-29 | 2017-04-26 | 曲保伦 | Desliming agent for slime-bearing sylvinite and processing method for slime-bearing sylvinite |
| CN110079327A (en) * | 2019-05-30 | 2019-08-02 | 北京理工大学 | The preparation method and application of stalk sodium water conservation and conditioning materials |
| CN110357973A (en) * | 2018-04-10 | 2019-10-22 | 上海长光企业发展有限公司 | A kind of sodium carboxymethylcellulose and its preparation method and application |
-
2014
- 2014-07-07 CN CN201410319532.1A patent/CN104072619A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761648A (en) * | 2015-04-15 | 2015-07-08 | 桂林理工大学 | Method for preparing nanocellulose at low energy consumption |
| CN106362705A (en) * | 2016-11-01 | 2017-02-01 | 内江师范学院 | Carboxymethyl cationic dye adsorption material prepared from paper pulp fiber, preparation method and application |
| CN106587107A (en) * | 2016-11-29 | 2017-04-26 | 曲保伦 | Desliming agent for slime-bearing sylvinite and processing method for slime-bearing sylvinite |
| CN106587107B (en) * | 2016-11-29 | 2018-06-12 | 曲保伦 | A kind of processing method of the sylvite containing mud |
| CN110357973A (en) * | 2018-04-10 | 2019-10-22 | 上海长光企业发展有限公司 | A kind of sodium carboxymethylcellulose and its preparation method and application |
| CN110079327A (en) * | 2019-05-30 | 2019-08-02 | 北京理工大学 | The preparation method and application of stalk sodium water conservation and conditioning materials |
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Application publication date: 20141001 |