CN112812898A - Organic solvent method cellulose detergent and cellulose preparation method - Google Patents
Organic solvent method cellulose detergent and cellulose preparation method Download PDFInfo
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- CN112812898A CN112812898A CN202011625884.1A CN202011625884A CN112812898A CN 112812898 A CN112812898 A CN 112812898A CN 202011625884 A CN202011625884 A CN 202011625884A CN 112812898 A CN112812898 A CN 112812898A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/02—Alkyl or cycloalkyl ethers
- C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
- C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/005—Crosslinking of cellulose derivatives
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2041—Dihydric alcohols
- C11D3/2044—Dihydric alcohols linear
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2072—Aldehydes-ketones
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-salts thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
- C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/43—Solvents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
Abstract
The invention discloses an organic solvent method cellulose detergent and a preparation method of cellulose, wherein the detergent is prepared from the following components: the invention provides an organic solvent method cellulose detergent and a cellulose preparation method, wherein reasonable raw materials are adopted to prepare a cellulose crude product, and then fine processing is carried out again, so that the purity of the product is effectively improved, the subsequent preparation production is ensured, and then various raw materials are stirred and mixed, different dosages are combined to assist in adjustment, the combination of various raw materials is facilitated, the deposition and adhesion are avoided, the product performance is effectively improved, the control production is facilitated, and the popularization and use are facilitated.
Description
Technical Field
The invention relates to the technical field of cellulose detergents, in particular to an organic solvent method cellulose detergent and a preparation method of cellulose.
Background
In industrial production, the use of detergents is very common, and among them, cellulose detergents, which are one industrial raw material, are widely used in various industries.
However, in the existing preparation of cellulose detergents, most of the cellulose products are directly prepared by mixing, which is not only unfavorable for purifying cellulose and affecting the product quality, but also unfavorable for mixing raw materials during preparation, thereby reducing the combination effect of various raw materials, not only having poor quality, but also causing various wastes and increasing the cost, and a new method needs to be provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an organic solvent method cellulose detergent and a cellulose preparation method.
In order to achieve the purpose, the invention adopts the following technical scheme:
an organic solvent method cellulose detergent and a cellulose preparation method are disclosed, wherein the detergent is prepared from the following components: 15-25% of cellulose, 25-35% of organic solvent, 10-15% of anionic surfactant, 8-20% of nonionic surfactant, 5-12% of auxiliary agent, 3-8% of acid-base agent and 6-20% of concentration regulator.
Preferably, the preparation method of the detergent comprises the following steps:
s1, selecting raw materials of each component, and preparing the cellulose with the purity of 80-85%;
s2, putting the cellulose into an organic solvent, and uniformly stirring until no micelle exists;
s3, adding an anionic surfactant, a nonionic surfactant and an auxiliary agent under the stirring state, standing for 15-20 minutes without precipitation;
s4, adding a concentration regulator until the concentration is 405-50% and no precipitate exists;
s5, adding the acid-base agent into the solution in a dropwise manner, and adjusting the pH value to 7.5-8.2 to complete the preparation of the detergent.
Preferably, the cellulose is low-ash hydroxyethyl cellulose, and the preparation method comprises the following steps:
p1, mixing the hydroxyethyl cellulose crude product with a glyoxal crosslinking agent in a mass ratio of 5-8:1, and performing crosslinking treatment to obtain a first slurry;
p2, adding a propanol washing solvent into the first slurry, wherein the mass percentage is 10-15:1, and uniformly stirring for 15 minutes to 20 minutes to obtain second slurry;
and P3, adding the second slurry into a rotary pressure centrifuge, and continuously washing to obtain the low-ash hydroxyethyl cellulose.
Preferably, the preparation method of the hydroxyethyl cellulose crude product in the step P1 comprises the following steps:
q1, reacting the refined cotton with sodium hydroxide in a mixed solvent to generate alkali cellulose;
q2, adding ethylene oxide to carry out etherification reaction;
q3, adding inorganic acid to neutralize until the pH value is 6.8-7.5, and obtaining the crude cellulose.
Preferably, the organic solvent is one or more of methanol, acetone and ethylene glycol.
Preferably, the nonionic surfactant comprises one or more of ethoxylated fatty acid ester, alkanolamide polyoxyethylene ether and glucosamine.
Preferably, the anionic surfactant comprises one of linear alkylbenzene sulfonate, alpha-olefin sulfonate, fatty acid alkyl ester sulfonate and alkyl sulfate.
Preferably, the acid-base agent is divided into acid agent and alkali agent, wherein the acid agent comprises hydrochloric acid solution and acetic acid solution, and the alkali agent comprises sodium carbonate solution, sodium hydroxide solution and potassium hydroxide solution.
Preferably, the concentration regulator comprises one of ethanol, saturated aqueous solution of sodium chloride and saturated aqueous solution of sodium sulfate.
According to the organic solvent method cellulose detergent and the preparation method of cellulose, provided by the invention, the raw cellulose product is prepared from reasonable raw materials, and then fine processing is carried out again, so that the purity of the product is effectively improved, the subsequent preparation and production are ensured, and then various raw materials are stirred and mixed, and different dosages are combined to assist in adjustment, so that the combination of various raw materials is facilitated, deposition and adhesion are avoided, the product performance is effectively improved, the control of production is facilitated, and the popularization and use are convenient.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An organic solvent method cellulose detergent and a cellulose preparation method are disclosed, wherein the detergent is prepared from the following components: 15-25% of cellulose, 25-35% of organic solvent, 10-15% of anionic surfactant, 8-20% of nonionic surfactant, 5-12% of auxiliary agent, 3-8% of acid-base agent and 6-20% of concentration regulator.
Preferably, the preparation method of the detergent comprises the following steps:
s1, selecting raw materials of each component, and preparing the cellulose with the purity of 80-85%;
s2, putting the cellulose into an organic solvent, and uniformly stirring until no micelle exists;
s3, adding an anionic surfactant, a nonionic surfactant and an auxiliary agent under the stirring state, standing for 15-20 minutes without precipitation;
s4, adding a concentration regulator until the concentration is 405-50% and no precipitate exists;
s5, adding the acid-base agent into the solution in a dropwise manner, and adjusting the pH value to 7.5-8.2 to complete the preparation of the detergent.
Preferably, the cellulose is low-ash hydroxyethyl cellulose, and the preparation method comprises the following steps:
p1, mixing the hydroxyethyl cellulose crude product with a glyoxal crosslinking agent in a mass ratio of 5-8:1, and performing crosslinking treatment to obtain a first slurry;
p2, adding a propanol washing solvent into the first slurry, wherein the mass percentage is 10-15:1, and uniformly stirring for 15 minutes to 20 minutes to obtain second slurry;
and P3, adding the second slurry into a rotary pressure centrifuge, and continuously washing to obtain the low-ash hydroxyethyl cellulose.
Preferably, the preparation method of the hydroxyethyl cellulose crude product in the step P1 comprises the following steps:
q1, reacting the refined cotton with sodium hydroxide in a mixed solvent to generate alkali cellulose;
q2, adding ethylene oxide to carry out etherification reaction;
q3, adding inorganic acid to neutralize until the pH value is 6.8-7.5, and obtaining the crude cellulose.
Preferably, the organic solvent is one or more of methanol, acetone and ethylene glycol.
Preferably, the nonionic surfactant comprises one or more of ethoxylated fatty acid ester, alkanolamide polyoxyethylene ether and glucosamine.
Preferably, the anionic surfactant comprises one of linear alkylbenzene sulfonate, alpha-olefin sulfonate, fatty acid alkyl ester sulfonate, and alkyl sulfate.
Preferably, the acid-base agent is divided into acid agent and alkali agent, wherein the acid agent includes hydrochloric acid solution and acetic acid solution, and the alkali agent includes sodium carbonate solution, sodium hydroxide solution and potassium hydroxide solution.
Preferably, the concentration regulator comprises one of ethanol, a saturated aqueous solution of sodium chloride and a saturated aqueous solution of sodium sulfate.
According to the organic solvent method cellulose detergent and the preparation method of cellulose, provided by the invention, the raw cellulose product is prepared from reasonable raw materials, and then fine processing is carried out again, so that the purity of the product is effectively improved, the subsequent preparation and production are ensured, and then various raw materials are stirred and mixed, and different dosages are combined to assist in adjustment, so that the combination of various raw materials is facilitated, deposition and adhesion are avoided, the product performance is effectively improved, the control of production is facilitated, and the popularization and use are convenient.
Example 1
An organic solvent method cellulose detergent and a cellulose preparation method are disclosed, wherein the detergent is prepared from the following components: 25% of cellulose, 35% of organic solvent, 10% of anionic surfactant, 8% of nonionic surfactant, 5% of auxiliary agent, 3% of acid-base agent and 14% of concentration regulator.
Preferably, the preparation method of the detergent comprises the following steps:
s1, selecting raw materials of each component, and preparing the cellulose with the purity of 80-85%;
s2, putting the cellulose into an organic solvent, and uniformly stirring until no micelle exists;
s3, adding an anionic surfactant, a nonionic surfactant and an auxiliary agent under the stirring state, standing for 15-20 minutes without precipitation;
s4, adding a concentration regulator until the concentration is 405-50% and no precipitate exists;
s5, adding the acid-base agent into the solution in a dropwise manner, and adjusting the pH value to 7.5-8.2 to complete the preparation of the detergent.
Preferably, the cellulose is low-ash hydroxyethyl cellulose, and the preparation method comprises the following steps:
p1, mixing the hydroxyethyl cellulose crude product with a glyoxal crosslinking agent in a mass ratio of 5-8:1, and performing crosslinking treatment to obtain a first slurry;
p2, adding a propanol washing solvent into the first slurry, wherein the mass percentage is 10-15:1, and uniformly stirring for 15 minutes to 20 minutes to obtain second slurry;
and P3, adding the second slurry into a rotary pressure centrifuge, and continuously washing to obtain the low-ash hydroxyethyl cellulose.
Preferably, the preparation method of the hydroxyethyl cellulose crude product in the step P1 comprises the following steps:
q1, reacting the refined cotton with sodium hydroxide in a mixed solvent to generate alkali cellulose;
q2, adding ethylene oxide to carry out etherification reaction;
q3, adding inorganic acid to neutralize until the pH value is 6.8-7.5, and obtaining the crude cellulose.
Preferably, the organic solvent is a mixture of acetone and ethylene glycol.
Preferably, the nonionic surfactant comprises an ethoxylated fatty acid ester.
Preferably, the anionic surfactant includes fatty acid alkyl ester sulfonate.
Preferably, the acid-base agent is divided into acid agent and base agent, wherein the acid agent comprises acetic acid solution and the base agent comprises sodium hydroxide solution.
Preferably, the concentration regulator comprises a saturated aqueous solution of sodium chloride.
Example 2
An organic solvent method cellulose detergent and a cellulose preparation method are disclosed, wherein the detergent is prepared from the following components: 20% of cellulose, 30% of organic solvent, 10% of anionic surfactant, 10% of nonionic surfactant, 10% of auxiliary agent, 5% of acid-base agent and 15% of concentration regulator.
Preferably, the preparation method of the detergent comprises the following steps:
s1, selecting raw materials of each component, and preparing the cellulose with the purity of 80-85%;
s2, putting the cellulose into an organic solvent, and uniformly stirring until no micelle exists;
s3, adding an anionic surfactant, a nonionic surfactant and an auxiliary agent under the stirring state, standing for 15-20 minutes without precipitation;
s4, adding a concentration regulator until the concentration is 405-50% and no precipitate exists;
s5, adding the acid-base agent into the solution in a dropwise manner, and adjusting the pH value to 7.5-8.2 to complete the preparation of the detergent.
Preferably, the cellulose is low-ash hydroxyethyl cellulose, and the preparation method comprises the following steps:
p1, mixing the hydroxyethyl cellulose crude product with a glyoxal crosslinking agent in a mass ratio of 5-8:1, and performing crosslinking treatment to obtain a first slurry;
p2, adding a propanol washing solvent into the first slurry, wherein the mass percentage is 10-15:1, and uniformly stirring for 15 minutes to 20 minutes to obtain second slurry;
and P3, adding the second slurry into a rotary pressure centrifuge, and continuously washing to obtain the low-ash hydroxyethyl cellulose.
Preferably, the preparation method of the hydroxyethyl cellulose crude product in the step P1 comprises the following steps:
q1, reacting the refined cotton with sodium hydroxide in a mixed solvent to generate alkali cellulose;
q2, adding ethylene oxide to carry out etherification reaction;
q3, adding inorganic acid to neutralize until the pH value is 6.8-7.5, and obtaining the crude cellulose.
Preferably, the organic solvent is a mixture of methanol and acetone.
Preferably, the nonionic surfactant comprises a mixture of ethoxylated fatty acid esters, alkanolamides, alkanolamide polyoxyethylene ethers.
Preferably, the anionic surfactant comprises linear alkylbenzene sulfonate.
Preferably, the acid-base agent is divided into acid agent and alkali agent, wherein the acid agent comprises hydrochloric acid solution and the alkali agent comprises sodium carbonate solution.
Preferably, the concentration modifier comprises ethanol.
Claims (9)
1. An organic solvent method cellulose detergent and a cellulose preparation method are characterized in that: the detergent is prepared from the following components: 15-25% of cellulose, 25-35% of organic solvent, 10-15% of anionic surfactant, 8-20% of nonionic surfactant, 5-12% of auxiliary agent, 3-8% of acid-base agent and 6-20% of concentration regulator.
2. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the preparation method of the detergent comprises the following steps:
s1, selecting raw materials of each component, and preparing the cellulose with the purity of 80-85%;
s2, putting the cellulose into an organic solvent, and uniformly stirring until no micelle exists;
s3, adding an anionic surfactant, a nonionic surfactant and an auxiliary agent under the stirring state, standing for 15-20 minutes without precipitation;
s4, adding a concentration regulator until the concentration is 405-50% and no precipitate exists;
s5, adding the acid-base agent into the solution in a dropwise manner, and adjusting the pH value to 7.5-8.2 to complete the preparation of the detergent.
3. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the cellulose is low-ash hydroxyethyl cellulose, and the preparation method comprises the following steps:
p1, mixing the hydroxyethyl cellulose crude product with a glyoxal crosslinking agent in a mass ratio of 5-8:1, and performing crosslinking treatment to obtain a first slurry;
p2, adding a propanol washing solvent into the first slurry, wherein the mass percentage is 10-15:1, and uniformly stirring for 15 minutes to 20 minutes to obtain second slurry;
and P3, adding the second slurry into a rotary pressure centrifuge, and continuously washing to obtain the low-ash hydroxyethyl cellulose.
4. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 3, characterized in that: the preparation method of the hydroxyethyl cellulose crude product in the step P1 comprises the following steps:
q1, reacting the refined cotton with sodium hydroxide in a mixed solvent to generate alkali cellulose;
q2, adding ethylene oxide to carry out etherification reaction;
q3, adding inorganic acid to neutralize until the pH value is 6.8-7.5, and obtaining the crude cellulose.
5. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the organic solvent is one or a mixture of methanol, acetone and glycol.
6. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the nonionic surfactant comprises one or more of ethoxylated fatty acid ester, alkanolamide polyoxyethylene ether and glucosamine.
7. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the anionic surfactant comprises one of linear alkyl benzene sulfonate, alpha-olefin sulfonate, fatty acid alkyl ester sulfonate and alkyl sulfate.
8. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the acid-base agent comprises an acid agent and an alkali agent, wherein the acid agent comprises a hydrochloric acid solution and an acetic acid solution, and the alkali agent comprises a sodium carbonate solution, a sodium hydroxide solution and a potassium hydroxide solution.
9. An organic solvent method cellulose detergent and a cellulose preparation method according to claim 1, characterized in that: the concentration regulator comprises one of ethanol, saturated aqueous solution of sodium chloride and saturated aqueous solution of sodium sulfate.
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| CN202011625884.1A CN112812898A (en) | 2020-12-31 | 2020-12-31 | Organic solvent method cellulose detergent and cellulose preparation method |
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| CN202011625884.1A CN112812898A (en) | 2020-12-31 | 2020-12-31 | Organic solvent method cellulose detergent and cellulose preparation method |
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|---|---|---|---|---|
| CN1171436A (en) * | 1997-06-24 | 1998-01-28 | 陈华 | High-concentration instant detergent in form of emulsoid and preparing process thereof |
| CN108191983A (en) * | 2018-01-04 | 2018-06-22 | 泸州北方化学工业有限公司 | A kind of method that serialization washing process produces low ash content hydroxyethyl cellulose |
| CN110156898A (en) * | 2019-05-30 | 2019-08-23 | 山东一滕新材料股份有限公司 | A method of preparing hydroxyethyl cellulose |
| CN110257186A (en) * | 2019-06-28 | 2019-09-20 | 中山榄菊日化实业有限公司 | Dish washing liquid and its preparation method and application |
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2020
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| CN108191983A (en) * | 2018-01-04 | 2018-06-22 | 泸州北方化学工业有限公司 | A kind of method that serialization washing process produces low ash content hydroxyethyl cellulose |
| CN110156898A (en) * | 2019-05-30 | 2019-08-23 | 山东一滕新材料股份有限公司 | A method of preparing hydroxyethyl cellulose |
| CN110257186A (en) * | 2019-06-28 | 2019-09-20 | 中山榄菊日化实业有限公司 | Dish washing liquid and its preparation method and application |
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