CN108978304A - A kind of paper-making pulping process - Google Patents
A kind of paper-making pulping process Download PDFInfo
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- CN108978304A CN108978304A CN201811016274.4A CN201811016274A CN108978304A CN 108978304 A CN108978304 A CN 108978304A CN 201811016274 A CN201811016274 A CN 201811016274A CN 108978304 A CN108978304 A CN 108978304A
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- Prior art keywords
- enzyme
- enzyme solution
- digestant
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- water
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
Abstract
The present invention relates to a kind of paper-making pulping process, belong to field of papermaking.A kind of paper-making pulping process, the pulping process includes secondary boiled step, cooking liquor used in first time boiling, by mass percentage, it is grouped as by following groups: sodium hydroxide 5 ~ 8%, sodium sulfite 0.5 ~ 1.0%, vulcanized sodium 1 ~ 2.5%, anthraquinone 0.3 ~ 0.5%, dodecyl sodium sulfate 0.02 ~ 0.1%, excess water；The gained after water dilutes by digestant of cooking liquor used in second of boiling, the dosage of the water are 100 ~ 200 times of digestant, and the digestant is made of the enzyme of graphene aerogel powder and load on it.Digestant of the present invention is mainly used for grass raw pulp technique.The digestant combines biological enzyme with carrier, guarantees that enzyme is not lost when in use for it, can recycle, probable life is long.
Description
Technical field
The present invention relates to a kind of paper-making pulping process, belong to field of papermaking.
Background technique
Paper production is divided into two basic processes of slurrying and papermaking.Pulping process method therefor includes mechanical means, chemistry
Plant fiber material dissociation is become true qualities paper pulp or bleached pulp by the method that method or both combines.Wherein, change legal system
Slurry is more common method, and principle is to utilize chemical liquid boiling tablet, at high temperature the wood in chemical agent and tablet
Element reaction generates the hydrotrope, so that fiber separation is dispersed into slurry, chemical pulping method is divided into soda pulping process and acid polishing again.Change
Length of schooling starches people from day length that can substantially retain fiber, removes most of lignin, can produce the high-grade paper that intensity is high, soft,
But its disadvantage is also fairly obvious low to get rate, pollution is big, and boiling raffinate contains a large amount of alkaline matters, pollutes environment.Grass family
Plant is one of common raw material of papermaking, is with the features such as with short production cycle, resource distribution is wide relative to wood raw material
Good raw material cheap and easy to get.
Summary of the invention
The object of the present invention is to provide a kind of paper-making pulping process, especially using gramineae plant as the slurrying work of raw material
Skill, the technique want the mode system combined using cheap gramineae plant as raw material, using chemical liquid and biological enzyme medical fluid
Slurry, to solve the problems, such as that the pollution of slurrying raffinate is big, recycling is difficult.The digestant combines biological enzyme with carrier, guarantee its
Enzyme is not lost when use, can be recycled, and probable life is long, and cooking effect is good.
A kind of paper-making pulping process, the pulping process include secondary boiled step,
Cooking liquor used in first time boiling is grouped as by following groups by mass percentage: sodium hydroxide 5 ~ 8%, sodium sulfite 0.5
~ 1.0%, vulcanized sodium 1 ~ 2.5%, anthraquinone 0.3 ~ 0.5%, dodecyl sodium sulfate 0.02 ~ 0.1%, excess water；
The gained after water dilutes by digestant of cooking liquor used in second of boiling, the dosage of the water are the 100 ~ 200 of digestant
Times, the digestant is made of the enzyme of graphene aerogel powder and load on it,
The enzyme is made of enzyme solution I and enzyme solution II 1 ~ 3:1 in mass ratio, wherein the enzyme solution I be milky white rake bacterium (Irpex lacteus) after CGMCC3.275 fermentation, through enzyme obtained by separating thallus；The enzyme solution II be coarse wool remove from office pore fungi (Coriolopsis gallica) after CICC2689 fermentation, through enzyme obtained by separating thallus.
Gramineae plant of the present invention is preferably reed, wheat straw, Nan Di etc..
Preferably, the graphene aerogel powder is made as follows: the oxidation stone for being 5% ~ 20% by mass fraction
Black alkene dispersion liquid is freeze-dried at -40 ~ -80 DEG C after freezing processing, is crushed, sieving；Under hydrogen atmosphere, 300 ~ 400 DEG C
6 ~ 12h of calcination processing.
Preferably, the digestant is made as follows: graphene aerogel powder is dispersed in water to obtain quality point
Mixed enzyme solution with dispersion liquid is that 1 ~ 5:1 is mixed by the dispersion liquid that number is 1 ~ 30% by volume, room temperature stirs 24 under confined conditions ~
48h, both,
Mixed enzyme solution used is made of enzyme solution I and enzyme solution II 1 ~ 3:1 in mass ratio, wherein the enzyme solution I is milky white rake bacterium
(Irpex lacteus) after CGMCC3.275 fermentation, through clarifying crude enzyme liquid obtained by separating thallus；The enzyme solution II is that coarse wool removes from office hole
Bacterium (Coriolopsis gallica) after CICC2689 fermentation, through clarifying crude enzyme liquid obtained by separating thallus.
Preferably, the first time digesting technoloy are as follows: carry out once boiling, boiling temperature 70 ~ 100 by liquor ratio 1:3 ~ 1:6
DEG C, 10 ~ 30min of digestion time.
Preferably, second of digesting technoloy are as follows: carry out secondary boiled, boiling temperature 55 ~ 70 by liquor ratio 1:4 ~ 1:8
DEG C, 10 ~ 30min of digestion time.
Preferably, the method includes following processing steps:
S1 stock will remove impurity after the chopping of gramineae plant raw material；
S2 once boiling: by liquor ratio 1:3 ~ 1:6 carry out once boiling, 70 ~ 100 DEG C of boiling temperature, 10 ~ 30min of digestion time,
Washing；
S3 is secondary boiled: it is secondary boiled by liquor ratio 1:4 ~ 1:8 progress, 55 ~ 70 DEG C of boiling temperature, 10 ~ 30min of digestion time, and water
It washes.
The beneficial effects of the present invention are: the present invention includes the steps that boiling twice, sword method is wherein selected in first step boiling
Pulping and digesting liquid thinks raw material internal penetration using cooking liquor, is swollen raw material, and dissolves part heteroproteose cell and hemicellulose
Equal ingredients.It is secondary boiled followed by mixed enzyme solution progress, lignin is decomposed using biological enzyme, fiber is made to be separated into single fiber.
The technique alkali charge and few with enzyme amount, reduces waste discharge amount, and mixed enzyme cooking liquor can be recycled, environmental-friendly；
Meanwhile the technique digestion time is short, cooking effect is good.Digestant of the present invention is mainly used for grass raw pulp technique.
The digestant combines biological enzyme with carrier, guarantees that enzyme is not lost when in use for it, can recycle, probable life is long.
Specific embodiment
The graphene aerogel powder is made as follows: the graphene oxide that mass fraction is 15% is dispersed
Liquid is freeze-dried at -60 DEG C after freezing processing, is crushed, sieving；Under hydrogen atmosphere, 360 DEG C of calcination processing 6h.
The enzyme solution I: culture medium: 12 Brix. brewer's wort 1.0L, agar 15.0g, natural pH.By milky white rake bacterium
(Irpex lacteus) CGMCC3.275 strain inoculated is on slant medium, after being cultivated 4 days in 26 DEG C of constant incubators, then
Move in culture medium, 26 DEG C constant temperature incubation 3 days, obtain fermentation liquid；Fermentation liquid is both obtained after 0.22 micron membrane filter filtration sterilization.
The enzyme solution II: culture medium: potato extracting solution 1.0L, glucose 20.0g, agar 15.0g, pH is natural.Horse
Bell potato extracting solution: taking peeled potatoes 200g, be cut into small pieces, and water 1.0L is added to boil 30min, filters off potato ball, filtrate is mended
Enough to 1.0L.By coarse wool remove from office pore fungi (Coriolopsis gallica) CICC2689 strain inoculated is on slant medium, 28 DEG C
After being cultivated 4 days in constant incubator, then move in culture medium, 28 DEG C constant temperature incubation 3 days, obtain fermentation liquid；By fermentation liquid through 0.22
After micron membrane filter filtration sterilization both.
Embodiment 1
S1 stock will remove impurity after the chopping of reed raw material；
S2 once boiling: once boiling is carried out by liquor ratio 1:4,80 DEG C of boiling temperature, digestion time 15min, is washed, steaming used
Boil liquid is grouped as by following groups by mass percentage: sodium hydroxide 6%, sodium sulfite 0.5%, vulcanized sodium 1.6%, anthraquinone 0.5%,
Dodecyl sodium sulfate 0.03%, excess water；
S3 is secondary boiled: it is secondary boiled by liquor ratio 1:5 progress, 60 DEG C of boiling temperature, digestion time 15min, and washing, steaming used
Boil liquid gained after water dilutes by digestant, the dosage of the water are 120 times of digestant；The digestant is made as follows
: by graphene aerogel powder be dispersed in water mass fraction be 15% dispersion liquid, mixed enzyme solution and dispersion liquid are pressed into body
For product than being that 3:1 is mixed, room temperature stirs 36h under confined conditions, both, wherein mixed enzyme solution used presses matter by enzyme solution I and enzyme solution II
Amount is formed than 2.1:1.
Embodiment 2
S1 stock will remove impurity after the chopping of reed raw material；
S2 once boiling: once boiling is carried out by liquor ratio 1:4,80 DEG C of boiling temperature, digestion time 15min, is washed, steaming used
Boil liquid is grouped as by following groups by mass percentage: sodium hydroxide 6%, sodium sulfite 0.5%, vulcanized sodium 1.6%, anthraquinone 0.5%,
Dodecyl sodium sulfate 0.03%, excess water；
S3 is secondary boiled: it is secondary boiled by liquor ratio 1:5 progress, 60 DEG C of boiling temperature, digestion time 15min, and washing, steaming used
Boil liquid gained after water dilutes by digestant, the dosage of the water are 120 times of digestant；The digestant is made as follows
: by graphene aerogel powder be dispersed in water mass fraction be 18% dispersion liquid, mixed enzyme solution and dispersion liquid are pressed into body
For product than being that 3.5:1 is mixed, room temperature stirs 36h under confined conditions, both, wherein mixed enzyme solution used is pressed by enzyme solution I and enzyme solution II
Mass ratio 1.8:1 composition.
Embodiment 3
S1 stock will remove impurity after the chopping of reed raw material；
S2 once boiling: once boiling is carried out by liquor ratio 1:4,80 DEG C of boiling temperature, digestion time 15min, is washed, steaming used
Boil liquid is grouped as by following groups by mass percentage: sodium hydroxide 6%, sodium sulfite 0.5%, vulcanized sodium 1.6%, anthraquinone 0.5%,
Dodecyl sodium sulfate 0.03%, excess water；
S3 is secondary boiled: it is secondary boiled by liquor ratio 1:5 progress, 60 DEG C of boiling temperature, digestion time 15min, and washing, steaming used
Boil liquid gained after water dilutes by digestant, the dosage of the water are 120 times of digestant；The digestant is made as follows
: by graphene aerogel powder be dispersed in water mass fraction be 12% dispersion liquid, mixed enzyme solution and dispersion liquid are pressed into body
For product than being that 4:1 is mixed, room temperature stirs 36h under confined conditions, both, wherein mixed enzyme solution used presses matter by enzyme solution I and enzyme solution II
Amount is formed than 1.5:1.
Comparative example 1
Other conditions are same as Example 1, and difference is only mixed enzyme solution, dosage and 1 phase of embodiment of biological enzyme in cooking liquor
Together.
Table 1
Boiling raffinate described in embodiment 1 and comparative example 1 is removed after solid impurity plus water complements to after meeting liquor ratio requirement
It is directly used in boiling next time, each conditions of cooking is all the same, the results are shown in Table 2.
Table 2
Claims (6)
1. a kind of paper-making pulping process, characterized in that the pulping process includes secondary boiled step,
Cooking liquor used in first time boiling is grouped as by following groups by mass percentage: sodium hydroxide 5 ~ 8%, sodium sulfite 0.5
~ 1.0%, vulcanized sodium 1 ~ 2.5%, anthraquinone 0.3 ~ 0.5%, dodecyl sodium sulfate 0.02 ~ 0.1%, excess water；
The gained after water dilutes by digestant of cooking liquor used in second of boiling, the dosage of the water are the 100 ~ 200 of digestant
Times, the digestant is made of the enzyme of graphene aerogel powder and load on it,
The enzyme is made of enzyme solution I and enzyme solution II 1 ~ 3:1 in mass ratio, wherein the enzyme solution I be milky white rake bacterium (Irpex lacteus) after CGMCC3.275 fermentation, through enzyme obtained by separating thallus；The enzyme solution II be coarse wool remove from office pore fungi (Coriolopsis gallica) after CICC2689 fermentation, through enzyme obtained by separating thallus.
2. technique according to claim 1, characterized in that the graphene aerogel powder is made as follows: will
The graphene oxide dispersion that mass fraction is 5% ~ 20% is freeze-dried at -40 ~ -80 DEG C after freezing processing, is crushed, mistake
Sieve；Under hydrogen atmosphere, 300 ~ 400 DEG C of 6 ~ 12h of calcination processing.
3. technique according to claim 1, characterized in that the digestant is made as follows: by graphene airsetting
Rubber powder body be dispersed in water mass fraction be 1 ~ 30% dispersion liquid, be by volume 1 ~ 5:1 mixed by mixed enzyme solution and dispersion liquid
It closes, room temperature stirs 24 ~ 48h under confined conditions, both,
Mixed enzyme solution used is made of enzyme solution I and enzyme solution II 1 ~ 3:1 in mass ratio, wherein the enzyme solution I is milky white rake bacterium
(Irpex lacteus) after CGMCC3.275 fermentation, through clarifying crude enzyme liquid obtained by separating thallus；The enzyme solution II is that coarse wool removes from office hole
Bacterium (Coriolopsis gallica) after CICC2689 fermentation, through clarifying crude enzyme liquid obtained by separating thallus.
4. technique according to claim 1, characterized in that the first time digesting technoloy are as follows: carried out by liquor ratio 1:3 ~ 1:6
Once boiling, 70 ~ 100 DEG C of boiling temperature, 10 ~ 30min of digestion time.
5. technique according to claim 1, characterized in that second of digesting technoloy are as follows: by liquor ratio 1:4 ~ 1:8 into
Row is secondary boiled, and 55 ~ 70 DEG C of boiling temperature, 10 ~ 30min of digestion time.
6. technique according to claim 1, characterized in that the method includes following processing steps:
S1 stock will remove impurity after the chopping of gramineae plant raw material；
S2 once boiling: by liquor ratio 1:3 ~ 1:6 carry out once boiling, 70 ~ 100 DEG C of boiling temperature, 10 ~ 30min of digestion time,
Washing；
S3 is secondary boiled: it is secondary boiled by liquor ratio 1:4 ~ 1:8 progress, 55 ~ 70 DEG C of boiling temperature, 10 ~ 30min of digestion time, and water
It washes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016274.4A CN108978304B (en) | 2018-09-02 | 2018-09-02 | Papermaking pulping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811016274.4A CN108978304B (en) | 2018-09-02 | 2018-09-02 | Papermaking pulping process |
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| Publication Number | Publication Date |
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| CN108978304A true CN108978304A (en) | 2018-12-11 |
| CN108978304B CN108978304B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811016274.4A Active CN108978304B (en) | 2018-09-02 | 2018-09-02 | Papermaking pulping process |
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Cited By (1)
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| CN111379184A (en) * | 2018-12-28 | 2020-07-07 | 安徽雪龙纤维科技股份有限公司 | Cotton pulp for producing cellulose acetate butyrate and preparation method thereof |
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