CN107325191A - A kind of preparation method of instant carboxymethylcellulose sodium - Google Patents
A kind of preparation method of instant carboxymethylcellulose sodium Download PDFInfo
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- CN107325191A CN107325191A CN201710552596.XA CN201710552596A CN107325191A CN 107325191 A CN107325191 A CN 107325191A CN 201710552596 A CN201710552596 A CN 201710552596A CN 107325191 A CN107325191 A CN 107325191A
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- sodium carboxymethylcellulose
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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
- C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
- C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/26—Cellulose ethers
- C08J2301/28—Alkyl ethers
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- Polysaccharides And Polysaccharide Derivatives (AREA)
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Abstract
The invention discloses a kind of preparation method of instant carboxymethylcellulose sodium, comprise the following steps:Sodium carboxymethylcellulose powder is heated, then water-spraying control causes sodium carboxymethylcellulose is burst through cold shock expanded to obtain finished product.The present invention uses physical method, by carrying out cold and hot physical treatment to sodium carboxymethylcellulose while ensureing that the pure quality of sodium carboxymethylcellulose does not decline, it is allowed to the expanded formation irregular particulate of profile, not only considerably increase the contact area of sodium carboxymethylcellulose and water, so that it is not only easy to dissolve with water, and irregular surface substantially reduces the clustering phenomena of sodium carboxymethylcellulose, so as to greatly accelerate the dissolution velocity of sodium carboxymethylcellulose.
Description
Technical field
The present invention relates to chemical field, more particularly to a kind of preparation method of instant carboxymethylcellulose sodium.
Background technology
Sodium carboxymethylcellulose abbreviation CMC, its aqueous solution has viscosity, with good bonding force.CMC is because with many
Special nature, such as thickening, bonding, film forming, water holding, emulsification, suspension, and nontoxic, odorless, not easy to ferment, heat endurance itself
Good the features such as and be widely used in the industries such as oil, geology, daily use chemicals, food, medicine, be described as " industrial monosodium glutamate ".Carboxymethyl
Sodium cellulosate is pulverulence when being made, and it is typically necessary when in use is dissolved in water turning into the sticking aqueous solution
Reuse, but the sodium carboxymethylcellulose of pulverulence is when dissolving in water, it is easy to occur conglomeration, caking and form microgranular, very
Indissoluble solution.Generally require and soaked 24 hours in water, and heating can be just completely dissolved.This to need to add in the industrial production
Plus special dissolution equipment is not only set during carboxymethyl cellulose, and whole production process is extended, carboxymethyl is fine in addition
The plain powder of dimension, which is easy to fly away, causes dust pollution.
Quick-dissolving agent is added when sodium carboxymethylcellulose dissolves for this some people, such as patent 201410095703.7 is a kind of fast
The method addition 1-METHYLPYRROLIDONE of instant solution sodium carboxymethylcellulose, a kind of instant level carboxylic first of patent 201510152478.0
The preparation method of base sodium cellulosate uses second diether as surfactant and assigns product instant characteristic, solves carboxymethyl fine
The plain sodium of dimension is easily united so that the problem of dissolution time is long in use.But above-mentioned solution is in carboxymethyl
Increase additive in sodium cellulosate, so that quickly dissolve, but 1-METHYLPYRROLIDONE, second diether have certain toxicity, can prestige
Coerce the healthy of operator and pollute environment, some require strict product such as food, medicine to sodium carboxymethylcellulose
Etc. can not adopt this method.
The content of the invention
To solve the above problems, the invention discloses a kind of preparation method of instant carboxymethylcellulose sodium, the present invention is adopted
It is cold by being carried out to sodium carboxymethylcellulose while ensureing that the pure quality of sodium carboxymethylcellulose does not decline with physical method
Ermal physics processing, is allowed to the expanded formation irregular particulate of profile, not only considerably increases connecing for sodium carboxymethylcellulose and water
Contacting surface is accumulated so that it is not only easy to dissolve with water, and irregular surface substantially reduces the conglomeration of sodium carboxymethylcellulose
Phenomenon, so as to greatly accelerate the dissolution velocity of sodium carboxymethylcellulose.
The present invention solves above-mentioned technical problem and adopted the technical scheme that：
A kind of preparation method of instant carboxymethylcellulose sodium, comprises the following steps:Sodium carboxymethylcellulose powder is added
Heat, then water-spraying control cause sodium carboxymethylcellulose is burst through cold shock expanded to obtain finished product.
It is further to improve, the air that air by vaporium heat and then heats is entered and places carboxymethyl cellulose
Sodium carboxymethylcellulose powder is heated and dispelled by the hopper at plain sodium powder end, and sodium carboxymethylcellulose powder is reached after preset temperature
Water spray causes sodium carboxymethylcellulose cooling.
Further to improve, the sodium carboxymethylcellulose powder is blown into expansion chamber and heated, and water spraying time is
1.5-2.5 hours, water spray continues to heat to prepare for 10 minutes after terminating to be completed, and obtains finished product.
Further to improve, the water spraying time is 1.5-2.5 hours, and shower nozzle moves up and down to carboxymethyl cellulose during water spray
Plain sodium is uniformly sprayed water.
Further to improve, the sodium carboxymethylcellulose powder is heated to more than 100 DEG C.
Further to improve, the sodium carboxymethylcellulose powder is heated to 125 DEG C.
Further to improve, the quality of the sodium carboxymethylcellulose powder is 100 with the mass ratio of water spray:20-30.
Further to improve, the size of the sodium carboxymethylcellulose powder is less than 80 mesh.
It is further to improve, comprise the following steps：
Step one：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl is made after washing is dried
Sodium cellulosate powder, sodium carboxymethylcellulose powder of the screening less than 80 mesh；
Step 2：Open vacuum feed appliance by the sodium carboxymethylcellulose powder after screening by the first pipeline from storage bin
Send into hopper, the first valve that feeding is closed after finishing on the first pipeline；
Step 3：Unlatching steam heater and vavuum pump will be expected after air is heated through steam heater by second pipe
Sodium carboxymethylcellulose powder in bucket is blown into expansion chamber；Wherein, the body of the weight of sodium carboxymethylcellulose powder and expansion chamber
Product is than being 80-150kg：8-18m3；
Step 4：When the first temperature inductor in expansion chamber senses that temperature reaches design temperature, shower nozzle water spray；Its
In, design temperature is more than 100 DEG C, and shower nozzle is moved up and down by lowering or hoisting gear and sprayed water, and lowering or hoisting gear is cylinder, oil cylinder etc.；
The second temperature inductor sensing air outlet temperature of the gas outlet of expansion chamber；When air outlet temperature is less than 95 DEG C, increase steam heater
Heating-up temperature and vavuum pump intake velocity；
Step 5：After shower nozzle is sprayed water 1.5-2.5 hours, water spray is finished, and is continued heating reaction in 10 minutes and is finished；Wherein, carboxylic
The ratio between the quality of sodium carboxymethylcellulose pyce powder and the gross mass of water spray are 100:20-30；
Step 6：The sodium carboxymethylcellulose powder prepared is stored up and expansion chamber is cleared up.
It is further to improve, in the step 4, vibration of ultrasonic wave is carried out by supersonic generator；Supersonic generator
Frequency be 2W-4W hertz
Figure of description
Fig. 1 is the general structure schematic diagram of this patent preparation facilities；
Fig. 2 is the structural representation of shower nozzle
Embodiment
Embodiment 1
Step one：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl is made after washing is dried
Sodium cellulosate powder, sodium carboxymethylcellulose powder of the screening less than 80 mesh；
Step 2：Open vacuum feed appliance 1 by the sodium carboxymethylcellulose powder after screening by the first pipeline 2 from storing
Hopper 4, the first valve 5 that feeding is closed after finishing on the first pipeline 2 are sent into storehouse 3；
Step 3：Open after steam heater 6 and vavuum pump 7 heat air through steam heater 6 by second pipe 8
Sodium carboxymethylcellulose powder in hopper 4 is blown into expansion chamber 9；Wherein, the weight of sodium carboxymethylcellulose powder with it is expanded
The volume ratio of room 9 is 80-150kg：8-18m3；
Step 4：When the first temperature inductor 10 in expansion chamber 9 senses that temperature reaches design temperature, shower nozzle 11 sprays
Water；Wherein, design temperature is 100 DEG C, and shower nozzle 11 is moved up and down by lowering or hoisting gear 13 and sprayed water；The gas outlet 12 of expansion chamber 9
Second temperature inductor 14 senses air outlet temperature；When air outlet temperature is less than 95 DEG C, increase the heating-up temperature of steam heater 6 and true
The intake velocity of empty pump 7；Vibration of ultrasonic wave is carried out by supersonic generator 15 in above process；Supersonic generator 15
Frequency is 2W-4W hertz.Screen pack 22 is installed, by screen pack 22 by the sodium carboxymethylcellulose powder of floating in expansion chamber 9
End stop, and by supersonic generator 15 by its it is shatter prevent it from condensing, while being shaken from screen pack 22.
Step 5：After shower nozzle 11 is sprayed water 1.5-2.5 hours, water spray is finished, and is continued heating reaction in 10 minutes and is finished；Wherein,
The ratio between the quality of sodium carboxymethylcellulose powder and the gross mass of water spray are 100:20-30；
Step 6：The sodium carboxymethylcellulose powder prepared is stored up and expansion chamber 9 is cleared up.
As shown in Fig. 2 the water spraying direction of spout 16 on shower nozzle 11 with circumference tangentially；Spout 16 on shower nozzle 11 includes
First spout 17 on top, second spout 18 and the 3rd spout 19 of bottom at middle part；First spout 17 is inclined upwardly 45 ° and set
Put；The downward 45 ° of inclinations angle of 3rd spout 19 are set.Consequently facilitating by material uniform wet.Shower nozzle 11 passes through flexible pipe 20 and water pump
21 connections.
Obtained concentration can be completely dissolved for 6% sodium carboxymethylcellulose in water within half an hour.
Embodiment 2
A kind of preparation method of instant carboxymethylcellulose sodium, comprises the following steps:Screen sodium carboxymethylcellulose powder
It is less than the sodium carboxymethylcellulose powder of 60 mesh from size.Air by vaporium heat and then the air of heating enters
Sodium carboxymethylcellulose powder is heated and dispelled and enters expansion chamber by the hopper for entering to place sodium carboxymethylcellulose powder, carboxymethyl
Sodium cellulosate powder reaches 110 DEG C of preset temperature, and rear water spray causes sodium carboxymethylcellulose is cooled down to cause sodium carboxymethylcellulose
Burst through cold shock expanded.The quality of sodium carboxymethylcellulose powder is 100 with the mass ratio sprayed water:30.Water spraying time is 2 small
When, water spray continues to heat to prepare for 10 minutes after terminating to be completed.Shower nozzle moves up and down to the uniform spray of sodium carboxymethylcellulose during water spray
Water.
Obtained concentration can be completely dissolved for 6% sodium carboxymethylcellulose in water within 25 minutes.
Embodiment 3
A kind of preparation method of instant carboxymethylcellulose sodium, comprises the following steps:Screen sodium carboxymethylcellulose powder
It is less than the sodium carboxymethylcellulose powder of 80 mesh from size.Air by vaporium heat and then the air of heating enters
Sodium carboxymethylcellulose powder is heated and dispelled and enters expansion chamber by the hopper for entering to place sodium carboxymethylcellulose powder, carboxymethyl
Sodium cellulosate powder reaches 125 DEG C of preset temperature, and rear water spray causes sodium carboxymethylcellulose is cooled down to cause sodium carboxymethylcellulose
Burst through cold shock expanded.The quality of sodium carboxymethylcellulose powder is 100 with the mass ratio sprayed water:25.Water spraying time is 2.5
Hour, water spray continues to heat to prepare for 10 minutes after terminating to be completed.Shower nozzle moves up and down uniform to sodium carboxymethylcellulose during water spray
Water spray.The weight of sodium carboxymethylcellulose powder is 150kg with the volume ratio of expansion chamber 9：10m3When, obtained concentration is 6%
Sodium carboxymethylcellulose can be completely dissolved within ten minutes in water.
Above-mentioned principle is:Water spray cold shock is expanded after sodium carboxymethylcellulose powder particle is heated, forms irregular surface,
So as to add the surface area of sodium carboxymethylcellulose powder, simultaneously because sodium carboxymethylcellulose powder be irregular shape because
It is that will not also produce clustering phenomena that this, which is dissolved in water,.
This patent allows sodium carboxymethylcellulose quickly to dissolve using the method for physics, it is not necessary to carboxymethyl cellulose
Plain sodium adds additive, will not produce pollution condition, will not also reduce the quality of sodium carboxymethylcellulose.
Finally it should be noted that：Above example only illustrates technical scheme, rather than its limitations；Although reference
The present invention is described in detail previous embodiment, it will be understood by those within the art that：It still can be right
Technical scheme described in foregoing embodiments is modified, or carries out equivalent substitution to which part technical characteristic；And this
A little modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and scope of technical scheme of the embodiment of the present invention.
Claims (5)
1. a kind of preparation method of instant carboxymethylcellulose sodium, it is characterised in that comprise the following steps:Air is passed through into steam
Room heat and then the air of heating enters the hopper for placing sodium carboxymethylcellulose powder by sodium carboxymethylcellulose powder
Heat and dispel, sodium carboxymethylcellulose powder reaches that water spray causes sodium carboxymethylcellulose cooling after preset temperature；
The sodium carboxymethylcellulose powder is blown into expansion chamber and heated, and water spraying time is 1.5-2.5 hours, and water spray terminates
Continue to heat afterwards to prepare for 10 minutes and complete, obtain finished product；
The sodium carboxymethylcellulose powder is heated to more than 100 DEG C；
The quality of the sodium carboxymethylcellulose powder is 100 with the mass ratio sprayed water:20-30；
The size of the sodium carboxymethylcellulose powder is less than 80 mesh.
2. the preparation method of instant carboxymethylcellulose sodium as claimed in claim 1, it is characterised in that during water spray above and below shower nozzle
Motion is to the uniform water spray of sodium carboxymethylcellulose.
3. the preparation method of instant carboxymethylcellulose sodium as claimed in claim 1, it is characterised in that the carboxymethyl cellulose
Plain sodium powder end is heated to 125 DEG C.
4. the preparation method of instant carboxymethylcellulose sodium as claimed in claim 1, it is characterised in that comprise the following steps：
Step one：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl cellulose is made after washing is dried
Plain sodium powder end, sodium carboxymethylcellulose powder of the screening less than 80 mesh；
Step 2：Open vacuum feed appliance (1) by the sodium carboxymethylcellulose powder after screening by the first pipeline (2) from storing
Storehouse (3) feeding hopper (4), the first valve (5) that feeding is closed after finishing on the first pipeline (2)；
Step 3：Open after steam heater (6) and vavuum pump (7) heat air through steam heater (6) by the second pipe
Sodium carboxymethylcellulose powder in hopper (4) is blown into expansion chamber (9) by road (8)；Wherein, the weight of sodium carboxymethylcellulose powder
Amount and the volume ratio of expansion chamber (9) are 80-150kg：8-18m3；
Step 4：When the first temperature inductor (10) in expansion chamber (9) senses that temperature reaches design temperature, shower nozzle (11) spray
Water；Wherein, design temperature is more than 100 DEG C, and shower nozzle (11) is moved up and down by lowering or hoisting gear (13) and sprayed water；Expansion chamber (9) go out
Second temperature inductor (14) the sensing air outlet temperature of gas port (12)；When air outlet temperature is less than 95 DEG C, increase steam heater (6)
Heating-up temperature and vavuum pump (7) intake velocity；
Step 5：After shower nozzle (11) is sprayed water 1.5-2.5 hours, water spray is finished, and is continued heating reaction in 10 minutes and is finished；Wherein, carboxylic
The ratio between the quality of sodium carboxymethylcellulose pyce powder and the gross mass of water spray are 100:20-30；
Step 6：The sodium carboxymethylcellulose powder prepared is stored up and expansion chamber (9) is cleared up.
5. the preparation method of instant carboxymethylcellulose sodium as claimed in claim 4, it is characterised in that in the step 4,
Vibration of ultrasonic wave is carried out by supersonic generator (15)；The frequency of supersonic generator (15) is 2W-4W hertz.
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| CN201710552596.XA CN107325191B (en) | 2017-07-07 | 2017-07-07 | A kind of preparation method of instant carboxymethylcellulose sodium |
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| CN201710552596.XA CN107325191B (en) | 2017-07-07 | 2017-07-07 | A kind of preparation method of instant carboxymethylcellulose sodium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677865A (en) * | 2022-10-24 | 2023-02-03 | 福建美亚瑞新材料科技有限公司 | Preparation method of instant sodium carboxymethylcellulose |
| CN115850804A (en) * | 2022-12-20 | 2023-03-28 | 徐州创力纤维有限公司 | Preparation method of rapidly-dissolved carboxymethyl cellulose |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204450927U (en) * | 2015-02-12 | 2015-07-08 | 怀化奥晟科技有限公司 | A kind of atomizing sodium carboxymethylcellulose damping device |
| CN105566500A (en) * | 2016-02-02 | 2016-05-11 | 上海长光企业发展有限公司 | Preparation method of granule-type polyanionic cellulose |
| CN105906724A (en) * | 2016-06-07 | 2016-08-31 | 常熟威怡科技有限公司 | Preparation method of low-turbidity high-performance sodium carboxymethylcellulose |
-
2017
- 2017-07-07 CN CN201710552596.XA patent/CN107325191B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204450927U (en) * | 2015-02-12 | 2015-07-08 | 怀化奥晟科技有限公司 | A kind of atomizing sodium carboxymethylcellulose damping device |
| CN105566500A (en) * | 2016-02-02 | 2016-05-11 | 上海长光企业发展有限公司 | Preparation method of granule-type polyanionic cellulose |
| CN105906724A (en) * | 2016-06-07 | 2016-08-31 | 常熟威怡科技有限公司 | Preparation method of low-turbidity high-performance sodium carboxymethylcellulose |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677865A (en) * | 2022-10-24 | 2023-02-03 | 福建美亚瑞新材料科技有限公司 | Preparation method of instant sodium carboxymethylcellulose |
| CN115850804A (en) * | 2022-12-20 | 2023-03-28 | 徐州创力纤维有限公司 | Preparation method of rapidly-dissolved carboxymethyl cellulose |
| CN115850804B (en) * | 2022-12-20 | 2024-04-09 | 徐州创力纤维有限公司 | Preparation method of fast-dissolving carboxymethyl cellulose |
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