CN107325191B - 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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- CN107325191B CN107325191B CN201710552596.XA CN201710552596A CN107325191B CN 107325191 B CN107325191 B CN 107325191B CN 201710552596 A CN201710552596 A CN 201710552596A CN 107325191 B CN107325191 B CN 107325191B
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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
Abstract
The invention discloses a kind of preparation methods of instant carboxymethylcellulose sodium, include the following steps:Sodium carboxymethylcellulose powder is heated, then water-spraying control makes sodium carboxymethylcellulose is burst through cold shock puffing 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 irregular particle of puffing formation shape, not only considerably increase the contact area of sodium carboxymethylcellulose and water, so that it is not only easy to and water dissolution, and irregular surface substantially reduces the clustering phenomena of sodium carboxymethylcellulose, to greatly accelerate the solution rate of sodium carboxymethylcellulose.
Description
Technical field
The present invention relates to chemical field more particularly to a kind of preparation methods of instant carboxymethylcellulose sodium.
Background technology
Sodium carboxymethylcellulose abbreviation CMC, aqueous solution have viscosity, have 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, thermal stability itself
The features such as good and be widely used in the industries such as oil, geology, daily use chemicals, food, medicine, be known as " industrial monosodium glutamate ".Carboxymethyl
Sodium cellulosate is pulverulence when being made, and is typically necessary is dissolved in becoming sticking aqueous solution in water when in use
Reuse, but when the sodium carboxymethylcellulose of pulverulence dissolves in water, it is easy to conglomeration occurs, caking formed it is microgranular, very
Indissoluble solution.It generally requires and impregnates 24 hours in water, and heating can be just completely dissolved.This to need to add in the industrial production
Special dissolution equipment will be not only arranged by adding when carboxymethyl cellulose, but also extend entire production process, and carboxymethyl is fine in addition
The plain powder of dimension, which is easy to drift, causes dust pollution.
Some people add quick-dissolving agent when sodium carboxymethylcellulose dissolves thus, as patent 201410095703.7 is a kind of fast
The method of instant solution sodium carboxymethylcellulose adds N-Methyl pyrrolidone, a kind of instant grade carboxylic first of patent 201510152478.0
The preparation method of base sodium cellulosate uses second diether to assign product instant characteristic as surfactant, solves carboxymethyl fibre
The plain sodium of dimension easily unites the problem for making dissolution time grow in use.But above-mentioned solution is in carboxymethyl
Increase additive in sodium cellulosate, to quickly dissolve, but N-Methyl pyrrolidone, second diether have certain toxicity, can prestige
It coerces the health of operator and pollutes environment, some require stringent product such as food, drug to sodium carboxymethylcellulose
Etc. can not adopt this method.
Invention content
To solve the above problems, the invention discloses a kind of preparation method of instant carboxymethylcellulose sodium, the present invention adopts
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 irregular particle of puffing formation shape, not only considerably increases connecing for sodium carboxymethylcellulose and water
Contacting surface is accumulated so that it is not only easy to and water dissolution, and irregular surface substantially reduces the conglomeration of sodium carboxymethylcellulose
Phenomenon, to greatly accelerate the solution rate of sodium carboxymethylcellulose.
The present invention solves above-mentioned technical problem and is adopted the technical scheme that：
A kind of preparation method of instant carboxymethylcellulose sodium, includes the following steps:Sodium carboxymethylcellulose powder is added
Heat, then water-spraying control make sodium carboxymethylcellulose is burst through cold shock puffing to obtain finished product.
Further to improve, the air that air by vaporium heat then heating enters placement carboxymethyl cellulose
Sodium carboxymethylcellulose powder is heated and is dispelled by the hopper at plain sodium powder end, after sodium carboxymethylcellulose powder reaches preset temperature
Water spray is so that sodium carboxymethylcellulose cooling.
Further to improve, the sodium carboxymethylcellulose powder is blown into expansion chamber and is heated, and water spraying time is
1.5-2.5 hours, continues heating after water spray and prepare completion in 10 minutes, obtain finished product.
Further to improve, the water spraying time is 1.5-2.5 hour, and nozzle up and down motion is to carboxymethyl cellulose when water spray
Plain sodium is uniformly sprayed water.
Further to improve, the sodium carboxymethylcellulose powder is heated to 100 DEG C or more.
Further to improve, the sodium carboxymethylcellulose powder is heated to 125 DEG C.
Further to improve, the quality of the sodium carboxymethylcellulose powder and the mass ratio of water spray are 100:20-30.
Further to improve, the size of the sodium carboxymethylcellulose powder is less than 80 mesh.
It is further to improve, include the following steps：
Step 1：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl is made after washing is dry
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 first pipe from storage bin
It is sent into hopper, the first valve in first pipe is closed after feeding；
Step 3：Opening steam heater and vacuum pump will expect air after steam heater heats 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 puffing indoor first temperature inductor senses that temperature reaches set temperature, nozzle water spray；Its
In, set temperature is more than 100 DEG C, and nozzle is moved up and down by lifting gear and sprayed water, and lifting gear is cylinder, oil cylinder etc.；
The second temperature inductor of the gas outlet of expansion chamber incudes air outlet temperature；When air outlet temperature is less than 95 DEG C, increase steam heater
Heating temperature and vacuum pump intake velocity；
Step 5：After nozzle is sprayed water 1.5-2.5 hours, water spray finishes, and continues heating reaction in 10 minutes and finishes；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 clears up expansion chamber.
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 schematic diagram of nozzle
Specific implementation mode
Embodiment 1
Step 1：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl is made after washing is dry
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 first pipe 2 from storing
Hopper 4 is sent into storehouse 3, and the first valve 5 in first pipe 2 is closed after feeding；
Step 3：It opens steam heater 6 and vacuum pump 7 and air is passed through into second pipe 8 after the heating of steam heater 6
Sodium carboxymethylcellulose powder in hopper 4 is blown into expansion chamber 9；Wherein, the weight of sodium carboxymethylcellulose powder with it is puffing
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 set temperature, nozzle 11 sprays
Water；Wherein, set temperature is 100 DEG C, and nozzle 11 is moved up and down by lifting gear 13 and sprayed water；The gas outlet 12 of expansion chamber 9
Second temperature inductor 14 incudes air outlet temperature；When air outlet temperature is less than 95 DEG C, increase the heating temperature of steam heater 6 and true
The intake velocity of sky pump 7；Vibration of ultrasonic wave is carried out by supersonic generator 15 in above process；Supersonic generator 15
Frequency is 2W-4W hertz.Filter screen 22 is installed, by filter screen 22 by the sodium carboxymethylcellulose powder of floating in expansion chamber 9
End stops, and by supersonic generator 15 by its it is shatter prevent its cohesion, while being shaken from filter screen 22.
Step 5：After nozzle 11 is sprayed water 1.5-2.5 hours, water spray finishes, and continues heating reaction in 10 minutes and finishes；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 clears up expansion chamber 9.
As shown in Fig. 2, the water spraying direction of spout 16 on nozzle 11 with circumference tangentially；Spout 16 on nozzle 11 includes
First spout 17 on top, second spout 18 at middle part and the third spout 19 of lower part；First spout 17 tilts 45 ° upwards and sets
It sets；The 19 downward 45 ° of inclination angle settings of third spout.Consequently facilitating by material uniform wet.Nozzle 11 passes through hose 20 and water pump
21 connections.
A concentration of 6% sodium carboxymethylcellulose obtained can be completely dissolved within half an hour in water.
Embodiment 2
A kind of preparation method of instant carboxymethylcellulose sodium, includes the following steps:Screen sodium carboxymethylcellulose powder
Size is selected to be less than the sodium carboxymethylcellulose powder of 60 mesh.By air by vaporium heat then heating air into
Sodium carboxymethylcellulose powder is heated and is dispelled into expansion chamber, carboxymethyl by the hopper for entering to place sodium carboxymethylcellulose powder
Sodium cellulosate powder reaches 110 DEG C of preset temperature, and rear water spray is so that sodium carboxymethylcellulose cools down so that sodium carboxymethylcellulose
It is burst through cold shock puffing.The quality of sodium carboxymethylcellulose powder and the mass ratio of water spray are 100:30.Water spraying time is 2 small
When, continue heating after water spray and prepare for 10 minutes to complete.Sodium carboxymethylcellulose is uniformly sprayed in nozzle up and down motion when water spray
Water.
A concentration of 6% sodium carboxymethylcellulose obtained can be completely dissolved within 25 minutes in water.
Embodiment 3
A kind of preparation method of instant carboxymethylcellulose sodium, includes the following steps:Screen sodium carboxymethylcellulose powder
Size is selected to be less than the sodium carboxymethylcellulose powder of 80 mesh.By air by vaporium heat then heating air into
Sodium carboxymethylcellulose powder is heated and is dispelled into expansion chamber, carboxymethyl by the hopper for entering to place sodium carboxymethylcellulose powder
Sodium cellulosate powder reaches 125 DEG C of preset temperature, and rear water spray is so that sodium carboxymethylcellulose cools down so that sodium carboxymethylcellulose
It is burst through cold shock puffing.The quality of sodium carboxymethylcellulose powder and the mass ratio of water spray are 100:25.Water spraying time is 2.5
Hour, continue heating after water spray and prepares completion in 10 minutes.Nozzle moves up and down uniform to sodium carboxymethylcellulose when water spray
Water spray.The weight of sodium carboxymethylcellulose powder is 150kg with the volume ratio of expansion chamber 9：10m3When, obtained a concentration of 6%
Sodium carboxymethylcellulose can be completely dissolved within ten minutes in water.
Above-mentioned principle is:Water spray cold shock is puffing after sodium carboxymethylcellulose powder particle is heated, forms irregular surface,
To increase the surface area of sodium carboxymethylcellulose powder, simultaneously because sodium carboxymethylcellulose powder be irregular shape because
It is that will not generate clustering phenomena that this, which is dissolved in water,.
This patent allows sodium carboxymethylcellulose quickly to dissolve using the method for physics, need not be to carboxymethyl cellulose
Additive is added in plain sodium, not will produce pollution condition, will not reduce the quality of sodium carboxymethylcellulose.
Finally it should be noted that：Above example only illustrates technical scheme of the present invention, rather than its limitations；Although reference
Invention is explained in detail for previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be right
Technical solution recorded in foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
A little modification or replacements, the spirit and scope for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (3)
1. a kind of preparation method of instant carboxymethylcellulose sodium, which is characterized in that include the following steps：
Air is heated by vaporium, the air then heated enters the hopper for placing sodium carboxymethylcellulose powder,
Sodium carboxymethylcellulose powder is heated and dispelled, water spray is so that carboxymethyl after sodium carboxymethylcellulose powder reaches preset temperature
Sodium cellulosate cools down；The sodium carboxymethylcellulose powder is blown into expansion chamber and is heated, and water spraying time is that 1.5-2.5 is small
When, continue heating after water spray and prepare for 10 minutes to complete, obtains finished product；
Above-mentioned preparation process is specially：
Step 1：Using purified cotton as raw material, through quaternization and etherification reaction, and carry out that carboxymethyl cellulose is made after washing is dry
Plain sodium powder end, sodium carboxymethylcellulose powder of the screening less than 80 mesh；
Step 2：Vacuum feed appliance is opened to be sent into the sodium carboxymethylcellulose powder after screening from storage bin by first pipe
Hopper closes the first valve in first pipe after feeding；
Step 3：It opens steam heater and vacuum pump will be in hopper by second pipe after steam heater heats by air
Sodium carboxymethylcellulose powder be blown into expansion chamber；Wherein, the volume ratio of the weight of sodium carboxymethylcellulose powder and expansion chamber
For 80-150kg：8-18m3；
Step 4：When puffing indoor first temperature inductor senses that temperature reaches set temperature, nozzle water spray；Wherein, if
Constant temperature degree is more than 100 DEG C, and nozzle is moved up and down by lifting gear and sprayed water；The second temperature inductor sense of the gas outlet of expansion chamber
Answer air outlet temperature；When air outlet temperature is less than 95 DEG C, increase the heating temperature of steam heater and the intake velocity of vacuum pump；Institute
It states in step 4, vibration of ultrasonic wave is carried out by supersonic generator, the frequency of supersonic generator is 2W-4W hertz；It is described
Filter screen is installed in expansion chamber, is stopped the sodium carboxymethylcellulose powder of floating by filter screen, and sent out by ultrasonic wave
Raw device by its it is shatter prevent its cohesion, while being shaken from filter screen；
The water spraying direction and circumference of spout on the nozzle are tangentially；Spout on nozzle includes first spout on top, in
Second spout in portion and the third spout of lower part, the first spout tilt 45 ° of settings upwards, and the downward 45 ° of inclinations angle of third spout are set
It sets, consequently facilitating by material uniform wet, nozzle is connected to by hose with water pump；
Step 5：After nozzle is sprayed water 1.5-2.5 hours, water spray finishes, and continues heating reaction in 10 minutes and finishes；Wherein, carboxymethyl
The ratio between the quality of sodium cellulosate powder and the gross mass of water spray are 100:20-30；
Step 6：The sodium carboxymethylcellulose powder prepared is stored up and clears up expansion chamber.
2. the preparation method of instant carboxymethylcellulose sodium as described in claim 1, which is characterized in that when water spray above and below nozzle
Movement uniformly sprays water to sodium carboxymethylcellulose.
3. the preparation method of instant carboxymethylcellulose sodium as described in claim 1, which is characterized in that the carboxymethyl cellulose
Plain sodium powder end is heated to 125 DEG C.
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| 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 |
| 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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| 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 |
| CN105566500B (en) * | 2016-02-02 | 2018-09-18 | 上海长光企业发展有限公司 | A kind of preparation method of granular pattern polyanion 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 |
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