CN105967997B - Sorbic acid discoloration method based on activated carbon briquetting - Google Patents
Sorbic acid discoloration method based on activated carbon briquetting Download PDFInfo
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- CN105967997B CN105967997B CN201610286875.1A CN201610286875A CN105967997B CN 105967997 B CN105967997 B CN 105967997B CN 201610286875 A CN201610286875 A CN 201610286875A CN 105967997 B CN105967997 B CN 105967997B
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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Abstract
This application discloses a kind of sorbic acid discoloration method based on activated carbon briquetting, including step：Allocate mother liquor；Deployed mother liquor and sorbic acid to be decolourized are put into the kettle that once decolourizes and is stirred to sorbic acid to be decolourized and is all dissolved；Activated carbon briquetting is put into the kettle that once decolourizes and is stirred；Circulation filters 18 22min；Filtrate is pressed into secondary decolourization kettle, activated carbon briquetting is put into and is stirred；Circulation filters 18 22min；Cooling separates out sorbic acid, and mother liquor is obtained by filtration；The dry sorbic acid separated out.According to technical solution provided by the embodiments of the present application, ordinary powder activated carbon is substituted by activated carbon briquetting, reduce the floating of dust, it can solve the shortcomings of dust is more in wood activated charcoal powder decolorization, smell weight, can directly it be fed intake during equipment operation by the way that activated carbon briquetting is made, be not required pass hull closure and wait feed intake during active carbon powder dissolving, shorten the production cycle and improve production efficiency.
Description
Technical field
The disclosure relates generally to decoloration field, and in particular to sorbic acid decoloration field, more particularly, to sorbic acid decolourize
Activated carbon briquetting.
Background technology
Sorbic acid (2,4- hexadienoic acids；2- acrylic acrylic acid) it is white to yellowish white crystalline powder, there is stink,
It is chronically exposed in air the easy moisture absorption, is changed colour by oxygenolysis.Sorbic acid soluble,very slightly in water, is soluble in ethanol, can be molten
The activity of mould, saccharomycete and aerobic bacteria can be effectively inhibited in a variety of organic solvent sorbic acids such as ether, moreover it is possible to prevented
The harmful microbes such as clostridium botulinum, staphylococcus, salmonella are grown and breeding, but to anaerobic Bacillus and acidophilus breast bar
The beneficial microbes such as bacterium are nearly unavailable, and the effect of its supression development is more stronger than bactericidal effect, effectively extends food so as to reach
Holding time, and keep the flavor of original food.Its anti-corrosion effect is 5-10 times of similar product sodium benzoate.Sent out in west
Application amount up to country is very big but also wideless in the application range of China.As a kind of generally recognized as safe, the food of efficient corrosion resisting
Product additive, sorbic acid and sylvite will can be more and more extensive in the application of China's food service industry.Sorbic acid is white to micro- Huang
White crystalline powder is, it is necessary to carry out it decolorization to meet actual production demand.
There is wood activated charcoal stronger adsorption capacity to be widely used for the characteristics such as decoloration, deodorization, impurity elimination, in sorbic acid system
Played a crucial role in standby decolorization.The artificial method for adding the decoloration of wood activated charcoal powder is now commonly used to handle, but
Be artificial addition wood activated charcoal powder carry out decoloration have the cycle compared with it is long, efficiency is low, energy consumption is big, dust is more and smell is again etc. scarce
Point.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, are intended to provide a kind of sorbic acid decoloration based on activated carbon briquetting
Method.
In a first aspect, a kind of sorbic acid discoloration method based on activated carbon briquetting, including step：
S101：Mother liquor is allocated, the mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1±
0.05)；
S102：Deployed mother liquor is put into the kettle that once decolourizes and sorbic acid decolourize is stirred, and is stirred to waiting to take off
Color sorbic acid all dissolves, wherein, mother liquor and sorbic acid mass ratio to be decolourized are (660 ± 15):(100±10)；
S103：Activated carbon briquetting is put into the kettle that once decolourizes and is stirred, in sorbic acid and the activated carbon briquetting
Quality of activated carbon ratio is (10 ± 1):(1±0.2)；
S104：18-22min is filtered to the solution circulation in the kettle that once decolourizes；
S105：Filtrate is pressed into secondary decolourization kettle, activated carbon briquetting is put into and is stirred, sorbic acid and the activated carbon
Quality of activated carbon ratio is (10 ± 1) in briquetting:(1±0.2)；
S106：18-22min is filtered to the solution circulation in the secondary decolourization kettle；
S107：Cooling separates out sorbic acid；
S108：The dry sorbic acid separated out.
According to technical solution provided by the embodiments of the present application, ordinary powder activated carbon is substituted by activated carbon briquetting, is reduced
The floating of dust, can solve the shortcomings of in wood activated charcoal powder decolorization dust is more, smell weight.Further, according to
The some embodiments of the application, can directly be fed intake, it is not necessary to close by the way that activated carbon briquetting is made during equipment operation
The dissolving of active carbon powder, shortens the production cycle and improves production efficiency during equipment and wait feed intake.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the sorbic acid discoloration method flow chart based on activated carbon briquetting in the embodiment of the present invention；
Fig. 2 is the preparation method flow chart for the activated carbon briquetting for being used for sorbic acid decoloration in the embodiment of the present invention.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
It illustrate only easy to describe, in attached drawing with inventing relevant part.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one：
Please refer to Fig.1, the present embodiment provides a kind of sorbic acid discoloration method based on activated carbon briquetting, it is characterised in that
Including step：
S101：Mother liquor is allocated, the mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1±
0.05)；
S102：Deployed mother liquor is put into the kettle that once decolourizes and sorbic acid decolourize is stirred, and stirring is to treating
Sorbic acid whole of decolourizing dissolves, wherein, mother liquor and sorbic acid mass ratio to be decolourized are (660 ± 15):(100±10)；
S103：Activated carbon briquetting is put into the kettle that once decolourizes and is stirred, in sorbic acid and the activated carbon briquetting
Quality of activated carbon ratio is (10 ± 1):(1±0.2)；
S104：18-22min is filtered to the solution circulation in the kettle that once decolourizes；
S105：Filtrate is pressed into secondary decolourization kettle, activated carbon briquetting is put into and is stirred, sorbic acid and the activated carbon
Quality of activated carbon ratio is (10 ± 1) in briquetting:(1±0.2)；
S106：18-22min is filtered to the solution circulation in the secondary decolourization kettle；
S107：Cooling separates out sorbic acid；
S108：The dry sorbic acid separated out.
Sorbic acid discoloration method provided in this embodiment substitutes ordinary powder activated carbon by activated carbon briquetting, reduces powder
The floating of dirt, can solve the shortcomings of dust in wood activated charcoal powder decolorization, smell are heavy；Mother liquor uses ethanol and sorb
Acid configuration, including micro impurity.Further, can be during equipment operation directly by the way that activated carbon briquetting is made
Feed intake, it is not necessary to which the dissolving of active carbon powder during pass hull closure feeds intake with wait, shortens the production cycle and improve
Production efficiency.
Further, whipping temp is 65-70 DEG C, mixing time 30-50min in the S103 and S105, is turned
Speed is 90-110 revs/min.Disperseed in the solution by stirring activated carbon briquetting, it is more preferable to the decolorizing effect of sorbic acid,
Sorbic acid light transmittance after once decolourizing is up to 94.8%.
Further, further included after S106：Whether detection filtrate light transmittance meets the requirements, if so, then entering S107；
Otherwise, S105-S106 is repeated.According to the requirement in actual production to sorbic acid light transmittance, decoloration can be repeated
Step, repeats sorbic acid decoloration and is required until reaching.
Embodiment two：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：50 parts of Powdered Activated Carbon, 10 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 50 parts of Powdered Activated Carbon, 10 parts of sorbic acid, 100 parts of water；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Embodiment three：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：70 parts of Powdered Activated Carbon, 30 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, takes each component of following mass parts
Carry out being mixed to form mixture, 70 parts of Powdered Activated Carbon, 30 parts of sorbic acid, 120 parts of water；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Example IV：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：60 parts of Powdered Activated Carbon, 20 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, takes each component of following mass parts
Carry out being mixed to form mixture, 60 parts of Powdered Activated Carbon, 20 parts of sorbic acid, 110 parts of water；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Embodiment five：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass fraction：50 parts of Powdered Activated Carbon, 20 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, takes each component of following mass parts
Carry out being mixed to form mixture, 50 parts of Powdered Activated Carbon, 20 parts of sorbic acid, 120 parts of ethanol；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh, and ethanol is pure to analyze.
Embodiment six：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass fraction：70 parts of Powdered Activated Carbon, 40 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 70 parts of Powdered Activated Carbon, 40 parts of sorbic acid, 140 parts of ethanol；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh, and ethanol is pure to analyze.
Embodiment seven：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：60 parts of Powdered Activated Carbon, 30 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 60 parts of Powdered Activated Carbon, 30 parts of sorbic acid, 130 parts of ethanol；
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh, and ethanol is pure to analyze.
Embodiment eight：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：70 parts of Powdered Activated Carbon, sorbic acid 20,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 70 parts of Powdered Activated Carbon, 140 parts of mother liquor；
Wherein, mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1±0.05)；Wherein further include micro-
Amount treats discoloring impurities.
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Embodiment nine：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：50 parts of Powdered Activated Carbon, 15 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 50 parts of Powdered Activated Carbon, 105 parts of mother liquor；
Wherein, mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1±0.05)；Wherein further include micro-
Amount treats discoloring impurities.
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Embodiment ten：
The present embodiment provides a kind of activated carbon briquetting for being used in above-mentioned discoloration method use, including compressing bulk
Activated carbon, the block absorbent charcoal include each component of following mass parts：60 parts of Powdered Activated Carbon, 25 parts of sorbic acid,
The activated carbon briquetting preparation method for being used for sorbic acid decoloration as shown in Figure 2, take each components of following mass parts into
Row is mixed to form mixture, 60 parts of Powdered Activated Carbon, 175 parts of mother liquor；
Wherein, mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1 ± 0.05), wherein further including micro-
Amount treats discoloring impurities.
20 DEG C are not higher than in whipping temp, mixture is stirred 5- by speed of agitator under conditions of being 50-70 revs/min
10min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is
0.2-1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h, that is, activated carbon briquetting is made.
Wherein, above-mentioned Powdered Activated Carbon is wood activated charcoal powder, its granularity is 100-200 mesh.
Activated carbon briquetting made of above-described embodiment decolourizes for sorbic acid, does not change existing sorbic acid decoloration production technology
The condition of parameter can improve production efficiency, be not in the situation that dust waves during feeding intake, no because it is bulk
Operating personnel's health can be endangered；And block activated carbon feed intake it is simple and convenient, it is more efficient, and activated carbon briquetting exists
It scatter during stirring, disclosure satisfy that the demand decolourized to sorbic acid.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical solution that the technical characteristic of energy is replaced mutually and formed.
Claims (4)
1. a kind of sorbic acid discoloration method based on activated carbon briquetting, it is characterised in that including step：
S101：Mother liquor is allocated, the mother liquor includes ethanol, sorbic acid, and ethanol and sorbic acid mass ratio are 6:(1±0.05)；
S102：Deployed mother liquor is put into the kettle that once decolourizes and sorbic acid to be decolourized is stirred, stirring to mountain to be decolourized
The all dissolvings of pears acid, wherein, mother liquor and sorbic acid mass ratio to be decolourized are (660 ± 15):(100±10)；
S103：Activated carbon briquetting is put into the kettle that once decolourizes and is stirred, sorbic acid and activity in the activated carbon briquetting
Charcoal mass ratio is (10 ± 1):(1±0.2)；
S104：18-22min is filtered to the solution circulation in the kettle that once decolourizes；
S105：Filtrate is pressed into secondary decolourization kettle, activated carbon briquetting is put into and is stirred, sorbic acid and the activated carbon briquetting
Middle quality of activated carbon ratio is (10 ± 1):(1±0.2)；
S106：18-22min is filtered to the solution circulation in the secondary decolourization kettle；
S107：Cooling separates out sorbic acid；
S108：The dry sorbic acid separated out；
The activated carbon briquetting preparation method includes：The each component of following mass parts is taken to carry out being mixed to form mixture, powder is lived
50 parts of charcoal of property, 10 parts of sorbic acid, 100 parts of water；
20 DEG C are not higher than in whipping temp, mixture is stirred 5-10min by speed of agitator under conditions of being 50-70 revs/min,
Uniformly mixed mixture is put into mould cold pressing 1-2min and forms primary activity charcoal briquetting, the pressure in mould is 0.2-
1 megapascal,
Primary activity charcoal briquetting is removed from the molds and spontaneously dries 15-20h.
2. the sorbic acid discoloration method according to claim 1 based on activated carbon briquetting, it is characterised in that the S103 and
Whipping temp is 65-70 DEG C, mixing time 30-50min in the S105, and rotating speed is 90-110 revs/min.
3. the sorbic acid discoloration method according to claim 1 based on activated carbon briquetting, it is characterised in that
Further included after the S106：Detect whether the filtrate light transmittance meets the requirements, if so, then entering S107；
Otherwise, S105-S106 is repeated.
4. the sorbic acid discoloration method according to claim 1 based on activated carbon briquetting, it is characterised in that the powder is lived
Property charcoal is wood activated charcoal powder, and the Powdered Activated Carbon granularity is 100-200 mesh.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377874A (en) * | 2002-04-12 | 2002-11-06 | 浙江大学 | Process for preparing sorbic acid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000103759A (en) * | 1998-09-29 | 2000-04-11 | Daicel Chem Ind Ltd | Production of sorbic acid or its salt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1377874A (en) * | 2002-04-12 | 2002-11-06 | 浙江大学 | Process for preparing sorbic acid |
Non-Patent Citations (1)
| Title |
|---|
| 高密度活性炭材料;黄利华等;《功能材料》;20041231;第35卷;第2541-2545页下转第2549页 * |
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