CN106854683A - A kind of cation saccharified liquid discoloration method - Google Patents
A kind of cation saccharified liquid discoloration method Download PDFInfo
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- CN106854683A CN106854683A CN201611105610.3A CN201611105610A CN106854683A CN 106854683 A CN106854683 A CN 106854683A CN 201611105610 A CN201611105610 A CN 201611105610A CN 106854683 A CN106854683 A CN 106854683A
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/12—Purification of sugar juices using adsorption agents, e.g. active carbon
- C13B20/123—Inorganic agents, e.g. active carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/14—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/24—Haloalkylation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/14—Purification of sugar juices using ion-exchange materials
- C13B20/146—Purification of sugar juices using ion-exchange materials using only anionic ion-exchange material
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention provides a kind of cation saccharified liquid discoloration method, and saccharified liquid is carried out into vacuum and low temperature concentration, first carries out pre- desolventing technology with activated carbon, then decolourized with anion exchange resin.The step of preparing resin anion (R.A.) is 1)Polymerisation;2)Chlorination reaction;3)Aminating reaction.Have the beneficial effect that:Activated carbon dosage is greatly reduced, reduces cost;Anion exchange resin is high to pigment adsorption rate, and adsorption rate is fast;, up to 100%, saccharified liquid product quality is high, quality better for saccharified liquid light transmittance after decolouring;The anion exchange resin high recycling rate of use, good evenness, stable performance, environmental protection, high financial profit.
Description
Technical field
The present invention relates to saccharified liquid decolouring technology field, specifically a kind of cation saccharified liquid discoloration method.
Background technology
Saccharified liquid is quite varied in food and medicine trade application, and saccharified liquid color is one of product critically important
Organoleptic indicator, therefore it is the problem that producer extremely pays close attention to select a kind of not only economic but also highly effective decolouring reagent.Saccharified liquid
Production will liquefy by high-temperature injection, then some pigments can be produced in this production process, before a class pigment is sugar and coloring matter
The product of precursor reactant, another kind of pigment is that sugared degradation is produced.Some coloring matters are produced in the basic conditions, with two
Close property, both has hydrophily, there is hydrophobicity again.If not by colour removal, the organoleptic indicator of finished product will be had a strong impact on, factory is restricted
Family's economic interests.Widely used saccharification liquid decolorizer is wood activated charcoal now, its good decolorizing effect but is involved great expense.
Prior art such as Authorization Notice No. is the Chinese invention patent of CN100507008C, discloses a kind of using ion friendship
Change the method that resin is decolourized to glucose saccharifying liquid.Dry is by it by temperature, concentration, the isoparametric determination of flow velocity
35 ~ 45% glucose saccharifying liquids, by ion interchange unit, are taken off under conditions of 40 ~ 50 DEG C of 2.5 ~ 4.0BV/h of flow of temperature
Glucose saccharifying liquid after color;Or fill the glucose saccharifying liquid after a small amount of activated carbon decolorizing by ion exchange again
Put, carry out purifying refined.Glucose saccharifying liquid light transmittance obtained by the method can reach 100%, and conductance can be down to 10 μ
Below s/cm.The method is not suitable for cation saccharified liquid, and used anion and cation exchange resin reuses number of times not
It is high.Also have now and anion exchange resin is modified, be allowed to adsorption rate raising, the research that absorption property is improved.As authorized
Notification number is the Chinese invention patent of CN103483474B, discloses a kind of preparation method of macropore weak base anion resins, its
Preparation method includes polymerization stage, and Archon is obtained by getting the raw materials ready, stirring, heat up, react;The chlorination reaction stage, by Archon
It is put into chlorinating container, chlorine ball is obtained by adding the reaction such as chloromethyl ether, zinc chloride;With the aminating reaction stage, by chlorine ball with
Diformazan aqueous amine aminating reaction obtains macropore weak base anion resins.Macropore weak base anion resins are not only improved obtained in the method
The mechanical strength of resin, extends the service life of resin, and specific surface area bigger, uniform pore diameter, improves resin
Exchange capacity and contamination resistance, and production cost is reduced, improve the economic benefit of product.But the resin anion (R.A.)
Porosity is not high, and the adsorption capacity to pigment has much room for improvement.
The content of the invention
High it is an object of the invention to provide a kind of decolorizing efficiency, light transmittance is high after saccharified liquid decolourizes, and operating procedure is simple,
Cation saccharified liquid discoloration method with low cost.
The problem mentioned for background technology of the present invention, the technical scheme taken is:
Saccharified liquid is carried out into vacuum and low temperature concentration, the concentrate that will be obtained is first with the work that quality is saccharified liquid butt amount 0.1 ~ 0.5%
Property charcoal carry out pre- desolventing technology, absorption blade diameter length ratio is 8 ~ 9, and saccharification flow velocity is 1.3 ~ 1.7mL/min, and temperature is 15 ~ 25 DEG C,
PH is 5.0 ~ 6.0, then is decolourized with anion exchange resin, and blade diameter length ratio is 5 ~ 6, and saccharification flow velocity is 1.6 ~ 2.0 mL/
Min, temperature is 18 ~ 22 DEG C, and pH is neutral range.Cation saccharified liquid is decolourized using the above method, activated carbon dosage is big
Amplitude is reduced, reduces cost;Anion exchange resin is high to pigment adsorption rate, and adsorption rate is fast;Saccharified liquid printing opacity after decolouring
, up to 100%, saccharified liquid product quality is high, quality better for rate;The anion exchange resin high recycling rate of use, good evenness, property
Can stabilization, environmental protection.
Wherein, the preparation process of anion exchange resin is:
1) polymerisation:A. first by preparing raw material styrene-divinylbenzene, TXB, initiator isobutanol and pore-foaming agent TXA
And calcium acetate, be put into kettle of getting the raw materials ready that to stir 20 ~ 40min standby, add in a kettle. polyethylene of dispersing agent alcohol, thiocarboxylic acid and
Glycerin monostearate and water, heating, temperature are 46 ~ 52 DEG C and stir 0.8 ~ 1.2 hour.Quality compares styrene-divinylbenzene:
TXB:Initiator:Pore-foaming agent is 10:(1.5~2.0):(3.8~5.3):(0.2~0.3), quality compares raw material:Dispersant:Water is 10:
(0.12~0.35):(18~35);B. raw material stirred in kettle of getting the raw materials ready is added in reactor, temperature is warming up to 78 ~ 82
DEG C, temperature is risen to 85 ~ 95 DEG C by insulation again after 1.8 ~ 2.2 hours, and is incubated 3.5 ~ 4.5 hours;Again by temperature rise to 95 DEG C with
On, insulation is lowered the temperature after 5 ~ 7 hours, cools the temperature to less than 45 DEG C, obtains Archon;C. the Archon in reactor is put into and washes material
Cleaned in kettle, until water outlet is limpid;D. dried in the Archon feeding drying machine that will have been washed, granularity is filtered out after drying qualified
Archon.The Archon good evenness for obtaining, porosity is high, and resin exchange capacity is big, big to cation saccharified liquid pigment adsorbance,
Pigment removal is high, and decolorization rate is fast;
2) chlorination reaction:Qualified Archon and chloromethyl ether are put into carries out chlorination reaction in chlorinating container, and reaction temperature is 29 ~
32 DEG C, the reaction time is 1.8 ~ 2.3 hours, Archon is obtained in chloromethyl ether fully swelling, and inner skeleton is opened, and is made in Archon
The chloromethylation in portion can also be accelerated, and more thoroughly carry out.Add zinc chloride, ferrous acetate and nano cupric oxide, mass ratio
Chloromethyl ether:Zinc chloride:Ferrous acetate:Nano cupric oxide is 1:(1.6~3.2):(0.1~0.4):(0.004~0.006), heating,
Reaction temperature is 45 ~ 50 DEG C, and the reaction time is 12 ~ 16 hours, then is cooled to less than 30 DEG C and obtains chlorine ball.Archon is in catalyst chlorine
Change under zinc and ferrous acetate effect, chloromethyl ether is imported on the phenyl ring of styrene-divinylbenzene carries out Friedel-Crafts
Reaction(Chloromethylation)As chlorine ball, Archon chlorination rate is improved under nano cupric oxide existence condition, and saccharified liquid decolorizing effect is increased
By force;
3) aminating reaction:Dimethylamine and water are quickly added dropwise in chlorine ball, the mass volume ratio of chlorine ball, dimethylamine and water is 1Kg:
(3.5~5.5)L:(0.7 ~ 1.1) Kg, stirring is started after stablizing 15 ~ 25min, after being stirred, temperature is risen into 40 ~ 45 DEG C, insulation
Sampled after 7.6 ~ 8.3 hours and survey moisture, water content can obtain qualified macropore weak base anion resins more than 57%.It is above-mentioned anti-
Should make to take secondary amine on chlorine ball phenyl ring(-N+(CH3)2-), it can be swapped with electronegative pigment in saccharified liquid, so as to reach
To saccharified liquid decolorizing effect.Macropore weak base anion resins good evenness prepared by the above method, porosity is high, and resins exchange is held
Amount is big, and big to cation saccharified liquid pigment adsorbance, pigment removal is high, and decolorization rate is fast.
Compared with prior art, it is of the invention to be a little:Activated carbon dosage is greatly reduced, reduces cost;Anion
Exchanger resin is high to pigment adsorption rate, and adsorption rate is fast;Saccharified liquid light transmittance after decolouring is up to 100%, saccharified liquid product quality
Height, quality better;The anion exchange resin high recycling rate of use, good evenness, stable performance, environmental protection;Prepare
Macropore weak base anion resins good evenness, porosity is high, and resin exchange capacity is big, to cation saccharified liquid pigment adsorbance
Greatly, pigment removal is high, and decolorization rate is fast.
Specific embodiment
Technical solution of the present invention is described further below by embodiment:
Embodiment 1:
A kind of cation saccharified liquid discoloration method, concretely comprises the following steps:
Saccharified liquid is carried out into vacuum and low temperature concentration, the concentrate that will be obtained is first with the work that quality is saccharified liquid butt amount 0.1 ~ 0.5%
Property charcoal carry out pre- desolventing technology, absorption blade diameter length ratio is 8 ~ 9, and saccharification flow velocity is 1.3 ~ 1.7mL/min, and temperature is 15 ~ 25 DEG C,
PH is 5.0 ~ 6.0, then is decolourized with anion exchange resin, and blade diameter length ratio is 5 ~ 6, and saccharification flow velocity is 1.6 ~ 2.0 mL/
Min, temperature is 18 ~ 22 DEG C, and pH is neutral range.Cation saccharified liquid is decolourized using the above method, activated carbon dosage is big
Amplitude is reduced, reduces cost;Anion exchange resin is high to pigment adsorption rate, and adsorption rate is fast;Saccharified liquid printing opacity after decolouring
, up to 100%, saccharified liquid product quality is high, quality better for rate;The anion exchange resin high recycling rate of use, good evenness, property
Can stabilization, environmental protection.
Wherein, the preparation process of anion exchange resin is:
1) polymerisation:A. first by preparing raw material styrene-divinylbenzene, TXB, initiator isobutanol and pore-foaming agent TXA
And calcium acetate, be put into kettle of getting the raw materials ready that to stir 20 ~ 40min standby, add in a kettle. polyethylene of dispersing agent alcohol, thiocarboxylic acid and
Glycerin monostearate and water, heating, temperature are 46 ~ 52 DEG C and stir 0.8 ~ 1.2 hour.Quality compares styrene-divinylbenzene:
TXB:Initiator:Pore-foaming agent is 10:(1.5~2.0):(3.8~5.3):(0.2~0.3), quality compares raw material:Dispersant:Water is 10:
(0.12~0.35):(18~35);B. raw material stirred in kettle of getting the raw materials ready is added in reactor, temperature is warming up to 78 ~ 82
DEG C, temperature is risen to 85 ~ 95 DEG C by insulation again after 1.8 ~ 2.2 hours, and is incubated 3.5 ~ 4.5 hours;Again by temperature rise to 95 DEG C with
On, insulation is lowered the temperature after 5 ~ 7 hours, cools the temperature to less than 45 DEG C, obtains Archon;C. the Archon in reactor is put into and washes material
Cleaned in kettle, until water outlet is limpid;D. dried in the Archon feeding drying machine that will have been washed, granularity is filtered out after drying qualified
Archon.The Archon good evenness for obtaining, porosity is high, and resin exchange capacity is big, big to cation saccharified liquid pigment adsorbance,
Pigment removal is high, and decolorization rate is fast;
2) chlorination reaction:Qualified Archon and chloromethyl ether are put into carries out chlorination reaction in chlorinating container, and reaction temperature is 29 ~
32 DEG C, the reaction time is 1.8 ~ 2.3 hours, Archon is obtained in chloromethyl ether fully swelling, and inner skeleton is opened, and is made in Archon
The chloromethylation in portion can also be accelerated, and more thoroughly carry out.Add zinc chloride, ferrous acetate and nano cupric oxide, mass ratio
Chloromethyl ether:Zinc chloride:Ferrous acetate:Nano cupric oxide is 1:(1.6~3.2):(0.1~0.4):(0.004~0.006), heating,
Reaction temperature is 45 ~ 50 DEG C, and the reaction time is 12 ~ 16 hours, then is cooled to less than 30 DEG C and obtains chlorine ball.Archon is in catalyst chlorine
Change under zinc and ferrous acetate effect, chloromethyl ether is imported on the phenyl ring of styrene-divinylbenzene carries out Friedel-Crafts
Reaction(Chloromethylation)As chlorine ball, Archon chlorination rate is improved under nano cupric oxide existence condition, and saccharified liquid decolorizing effect is increased
By force;
3) aminating reaction:Dimethylamine and water are quickly added dropwise in chlorine ball, the mass volume ratio of chlorine ball, dimethylamine and water is 1Kg:
(3.5~5.5)L:(0.7 ~ 1.1) Kg, stirring is started after stablizing 15 ~ 25min, after being stirred, temperature is risen into 40 ~ 45 DEG C, insulation
Sampled after 7.6 ~ 8.3 hours and survey moisture, water content can obtain qualified macropore weak base anion resins more than 57%.It is above-mentioned anti-
Should make to take secondary amine on chlorine ball phenyl ring(-N+(CH3)2-), it can be swapped with electronegative pigment in saccharified liquid, so as to reach
To saccharified liquid decolorizing effect.Macropore weak base anion resins good evenness prepared by the above method, porosity is high, and resins exchange is held
Amount is big, and big to cation saccharified liquid pigment adsorbance, pigment removal is high, and decolorization rate is fast.
Embodiment 2:
A kind of cation saccharified liquid discoloration method, most preferably step is:
Saccharified liquid is carried out into vacuum and low temperature concentration, the concentrate that will be obtained is first with the activated carbon that quality is saccharified liquid butt amount 0.3%
Pre- desolventing technology is carried out, absorption blade diameter length ratio is 8, and saccharification flow velocity is 1.5mL/min, and temperature is 20 DEG C, and pH is 5.3, then is used
Anion exchange resin is decolourized, and blade diameter length ratio is 5, and saccharification flow velocity is 1.8mL/min, and temperature is 20 DEG C, and pH is 7.Make
Cation saccharified liquid is decolourized in aforementioned manners, activated carbon dosage is greatly reduced, reduces cost;Anion exchange resin is checked colors
Plain adsorption rate is high, and adsorption rate is fast;, up to 100%, saccharified liquid product quality is high, quality better for saccharified liquid light transmittance after decolouring;Using
Anion exchange resin high recycling rate, good evenness, stable performance, environmental protection.
Wherein, the preparation process of anion exchange resin is:
1)Polymerisation:A. first by preparing raw material styrene-divinylbenzene, TXB, initiator isobutanol and pore-foaming agent TXA
And calcium acetate, stirring 35min is standby in being put into kettle of getting the raw materials ready, and polyethylene of dispersing agent alcohol, thiocarboxylic acid and list are added in a kettle.
Tristerin and water, heating, temperature are 48 DEG C and stir 1 hour.Quality compares styrene-divinylbenzene:TXB:Initiator:
Pore-foaming agent is 10:1.7:4.2:0.2, quality compares raw material:Dispersant:Water is 10:0.24:25;B. will get the raw materials ready stirred in kettle
Raw material is added in reactor, and temperature is warming up into 80 DEG C, and temperature is risen to 87 DEG C by insulation again after 2 hours, and is incubated 4 hours;
Temperature is risen to 98 DEG C again, insulation is lowered the temperature after 6 hours, cools the temperature to less than 45 DEG C, obtains Archon;C. by reactor
Archon is cleaned in being put into Material-washing kettle, until water outlet is limpid;D. dried in the Archon feeding drying machine that will have been washed, sieved after drying
Select the qualified Archon of granularity.Polyvinyl alcohol, thiocarboxylic acid and glycerin monostearate system can obtain uniformity, porosity
Balance.Therefore, the Archon good evenness that course of reaction is obtained, porosity is high, and resin exchange capacity is big, to cation saccharified liquid
Pigment adsorbance is big, and pigment removal is high, and decolorization rate is fast;
2)Chlorination reaction:Qualified Archon and chloromethyl ether are put into carries out chlorination reaction in chlorinating container, reaction temperature is 30
DEG C, the reaction time is 2 hours, Archon is obtained in chloromethyl ether fully swelling, and inner skeleton is opened, and makes the chloromethane inside Archon
Glycosylation reaction can also be accelerated, and more thoroughly carry out.Zinc chloride, ferrous acetate and nano cupric oxide are added, quality compares chloromethyl ether:Chlorine
Change zinc:Ferrous acetate:Nano cupric oxide is 1:2.2:0.3:0.005, heating, reaction temperature is 47 DEG C, and the reaction time is 15 small
When, then be cooled to less than 30 DEG C and obtain chlorine ball.Archon catalyst zinc chloride and ferrous acetate effect under, in styrene-diethyl
Chloromethyl ether is imported on the phenyl ring of alkenyl benzene carries out Friedel-Crafts reactions(Chloromethylation)As chlorine ball, nano cupric oxide is deposited
Archon chlorination rate is improved under conditions, and saccharified liquid decolorizing effect is strengthened;
3)Aminating reaction:Dimethylamine and water are quickly added dropwise in chlorine ball, the mass volume ratio of chlorine ball, dimethylamine and water is 1Kg:
4L:0.9Kg, stirring is started after stablizing 15 ~ 25min, after being stirred, temperature is risen into 42 DEG C, and insulation is sampled after 7.8 hours and surveys water
Point, water content can obtain qualified macropore weak base anion resins more than 57%.Above-mentioned reaction makes to be taken on chlorine ball phenyl ring secondary
Amido(-N+(CH3)2-), it can be swapped with electronegative pigment in saccharified liquid, so as to reach saccharified liquid decolorizing effect.On
The macropore weak base anion resins good evenness of method preparation is stated, porosity is high, resin exchange capacity is big, to cation saccharified liquid
Pigment adsorbance is big, and pigment removal is high, and decolorization rate is fast.
Embodiment described above has been described in detail to technical scheme, it should be understood that the above is only
It is specific embodiment of the invention, is not intended to limit the invention, all any modifications made in spirit of the invention,
Supplement or similar fashion replacement etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of cation saccharified liquid discoloration method, it is characterised in that:Described discoloration method step is:It is first pre- de- with activated carbon
Color, then decolourized with anion exchange resin;Anion exchange resin preparation process is:
Polymerisation:A. preparing raw material styrene-divinylbenzene, TXB, initiator and pore-foaming agent are put into kettle of getting the raw materials ready first
Middle stirring is standby, and dispersant and water, heating stirring are added in a kettle.;B. raw material stirred in kettle of getting the raw materials ready is added to
In reactor, heating and heat preservation, cooling obtains Archon;C. the Archon in reactor is put into Material-washing kettle and is cleaned, until water outlet is clear
It is clear;D. dried in the Archon feeding drying machine that will have been washed, the qualified Archon of granularity is filtered out after drying;
Chlorination reaction:Qualified Archon and chloromethyl ether are put into carries out chlorination reaction in chlorinating container, add zinc chloride, acetic acid
Ferrous and nano cupric oxide, heating, then lower the temperature and obtain chlorine ball;
Aminating reaction:Dimethylamine and water are quickly added dropwise in chlorine ball, stirring is started after stabilization, after being stirred, heated up, insulation,
Moisture is surveyed, water content can obtain qualified macropore weak base anion resins more than 57%.
2. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Described initiator is different
Butanol.
3. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Described perforating agent is
TXA and calcium acetate.
4. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Described dispersant is poly-
Vinyl alcohol, thiocarboxylic acid and glycerin monostearate.
5. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:B steps in described step 1
Rapid heating and heat preservation, cooling concrete operations are that temperature is warming up into 78 ~ 82 DEG C, and temperature is risen to 85 by insulation again after 1.8 ~ 2.2 hours
~ 95 DEG C, and it is incubated 3.5 ~ 4.5 hours;Temperature is risen to more than 95 DEG C again, insulation is lowered the temperature after 5 ~ 7 hours, cools the temperature to 45 DEG C
Below.
6. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Add in described step 2
Before entering zinc chloride and ferrous acetate, reaction temperature is 29 ~ 32 DEG C, and the reaction time is 1.8 ~ 2.3 hours, adds zinc chloride and vinegar
Reaction temperature is 45 ~ 50 DEG C after sour ferrous iron, and the reaction time is 12 ~ 16 hours.
7. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Matter in described step 1
Amount compares styrene-divinylbenzene:TXB:Initiator:Pore-foaming agent is 10:(1.5~2.0):(3.8~5.3):(0.2~0.3), matter
Amount compares raw material:Dispersant:Water is 10:(0.12~0.35):(18~35).
8. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Matter in described step 2
Amount compares chloromethyl ether:Zinc chloride:Ferrous acetate:Nano cupric oxide is 1:(1.6~3.2):(0.1~0.4):(0.004~0.006).
9. a kind of cation saccharified liquid discoloration method according to claim 1, it is characterised in that:Chlorine in described step 3
The mass volume ratio of ball, dimethylamine and water is 1Kg:(3.5~5.5)L:(0.7~1.1)Kg.
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