CN105735022B - A kind of paper-making pulping liquid and the pulping process using the liquid - Google Patents
A kind of paper-making pulping liquid and the pulping process using the liquid Download PDFInfo
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- CN105735022B CN105735022B CN201610100569.4A CN201610100569A CN105735022B CN 105735022 B CN105735022 B CN 105735022B CN 201610100569 A CN201610100569 A CN 201610100569A CN 105735022 B CN105735022 B CN 105735022B
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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
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to pulp technology for making paper, more particularly to a kind of paper-making pulping liquid and the pulping process using the liquid.The paper-making pulping liquid, it is characterized in that：It is made of the raw material of following parts by weight：17 parts of sodium hydroxide, 13 parts of calcium carbonate, 24 parts of magnesium sulfate, 14 parts of sodium salicylate, 0.5 2 parts of cellulase, 90 110 parts of water.Pulp liquor of the present invention is in low temperature, it can react, be modified to the lignin in the fibrous raw materials such as blade, stalk, timber under normal pressure, it is set to become hydrophilic substance, blade water suction is caused to become larger in short time, lignin structure is defeated and dispersed, strong condition is created to discongest into slurry, it is used for non-wood or wood fibre slurrying using the pulping process of the pulp liquor, realize " no thermophilic digestion, without black liquor produce, non-wastewater discharge ", slurry is clean, substantial amounts of washing slurry is not required to, it is pollution-free, make full use of straw resource to be of great significance China's paper industry.
Description
Technical field
The present invention relates to pulp technology for making paper, more particularly to a kind of paper-making pulping liquid and the slurrying work using the liquid
Skill.
（Two）Background technology
Existing paper-making pulping mainly uses following three kinds of modes：1. vertically digesting slurrying；2 rotary spherical digester pulping by cooking；3 even steams
Even drift slurrying；It can be seen that the prior art is relied primarily on high-alkali, high mainly using the method for boiling by lignin dissolution as far as possible
Temperature, autoclaving, there is it is more the problem of.First, environment is seriously polluted, paper-making effluent discharge is China's industrial wastewater
The emission source of COD maximums, due to largely to remove lignin and few fibers, hemicellulose, causes COD, BOD in water to be up to
More than 10000, later regulation is difficult, it is difficult to which qualified discharge, causes serious pollution, COD (COD) refers to one
Under conditions of fixed stringent, for the reducing substances in water under the action of additional strong oxidizer, by oxygenolysis when consumes oxygen
The quantity of agent, is represented with the mg/L of oxygen.COD reflects the degree polluted in water by reducing substances, these things
Matter includes organic matter, nitrite, ferrous salt, sulfide etc., but in general water and waste water inorganic reduction material quantity phase
To little, and it is very universal by organic pollution, therefore, COD can be as a comprehensive finger of organic substance relative amount
Mark；Biochemical oxygen demand (BOD) (BOD) is that Organic substance in water is resolved into inanimate matter by the aerobic microbiological in water body at a certain temperature, this
Required dissolved oxygen content in oxidizing process in one special time, is that a synthesis for reflecting organic pollutants content refers to
Mark.Secondly, it is low into pulp yield, be only 40% or so, high temperature, high pressure, high-alkali cooking schedule while dissolved lignin,
Also make more cellulose degradations and be lost in, cause boiling, washing, screening process to produce large amount of sewage, and the suspension in sewage
Thing and organic concentration are high, viscosity is big, high-alkali, color and luster is dark, biodegradability is poor, fiber loss amount is big, cause slurry yield low.Most
Afterwards, production cost is high, complex process, high energy consumption, and system operation expense is high, and later stage cost for wastewater treatment is higher.
（Three）The content of the invention
Few and few dosage paper-making pulping in order to compensate for the shortcomings of the prior art, the present invention provides a kind of chemical raw material
Liquid and the technique using liquid slurrying under low temperature, normal pressure.
The present invention is achieved through the following technical solutions：
A kind of paper-making pulping liquid, it is characterized in that：It is made of the raw material of following parts by weight：Sodium hydroxide 1-7
Part, 1-3 parts of calcium carbonate, 2-4 parts of magnesium sulfate, 1-4 parts of sodium salicylate, 0.5-2 parts of cellulase, 90-110 parts of water.
Preferably, above-mentioned paper-making pulping liquid, it is characterized in that：It is made of the raw material of following parts by weight：Hydrogen-oxygen
Change 3 parts of sodium, 2 parts of calcium carbonate, 2 parts of magnesium sulfate, 3 parts of sodium salicylate, 1 part of cellulase, 100 parts of water.
When carrying out slurrying using above-mentioned liquid, specifically comprise the following steps：
（1）Prepare pulp liquor：The sodium hydroxide of the parts by weight, calcium carbonate, magnesium sulfate, water are added in dispensing canister
Poplar acid sodium, cellulase, and water are configured to liquid, and then the liquid prepared is transported in retort with chemical pump；
（2）React in retort inner liquid medicine with raw material, reaction temperature is 70-90 DEG C, and reaction pressure is normal pressure, instead
It is 30-50 minutes between seasonable；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to tank is compounded again, pumps to retort reused again.
Beneficial effects of the present invention：Pulp liquor of the present invention can be to fibers such as blade, stalk, timber under low temperature, normal pressure
Lignin in raw material is reacted, is modified, and it is become hydrophilic substance, causes blade water suction to become larger in the short time, wood
Plain structure is defeated and dispersed, and strong condition is created to discongest into slurry, using the pulping process of the pulp liquor be used for non-wood or
Wood fibre slurrying, realize " no thermophilic digestion, without black liquor produce, non-wastewater discharge ", slurry is clean, is not required to largely wash
Slurry, it is pollution-free, make full use of straw resource to be of great significance China's paper industry.
（Four）Embodiment
Below by specific embodiment, the present invention will be further described, but not limited to this.
Embodiment 1
A kind of pulping process of pulp liquor using the present invention, specifically comprises the following steps：
（1）Prepare pulp liquor：2 parts of sodium hydroxide, 3 parts of calcium carbonate, 3 parts of magnesium sulfate, salicylic acid are added in dispensing canister
2 parts of sodium, 2 parts of cellulase, 90 parts of water are configured to liquid, and then the liquid prepared is transported in retort with chemical pump；
（2）Reacting in retort inner liquid medicine with raw material, the raw material are to pass through prewashed blade, wood chip,
Reaction temperature is 70 DEG C, and reaction pressure is normal pressure, and the reaction time is 50 minutes；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to compounding in tank again, pump again to being repeated in retort
Utilize.
Embodiment 2：
A kind of pulping process of pulp liquor using the present invention, specifically comprises the following steps：
（1）Prepare pulp liquor：3 parts of sodium hydroxide, 2 parts of calcium carbonate, 2 parts of magnesium sulfate, salicylic acid are added in dispensing canister
3 parts of sodium, 1 part of cellulase, 100 parts of water are configured to liquid, and then the liquid prepared is transported in retort with chemical pump；
（2）Reacting in retort inner liquid medicine with raw material, the raw material are to pass through prewashed blade, wood chip,
Reaction temperature is 80 DEG C, and reaction pressure is normal pressure, and the reaction time is 40 minutes；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to compounding in tank again, pump again to being repeated in retort
Utilize.
Embodiment 3：
A kind of pulping process of pulp liquor using the present invention, specifically comprises the following steps：
（1）Prepare pulp liquor：1 part of sodium hydroxide, 3 parts of calcium carbonate, 4 parts of magnesium sulfate, salicylic acid are added in dispensing canister
1 part of sodium, 1.5 parts of cellulase, 110 parts of water are configured to liquid, and the liquid prepared then is transported to retort with chemical pump
It is interior；
（2）Reacting in retort inner liquid medicine with raw material, the raw material are to pass through prewashed blade, wood chip,
Reaction temperature is 90 DEG C, and reaction pressure is normal pressure, and the reaction time is 30 minutes；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to compounding in tank again, pump again to being repeated in retort
Utilize.
Embodiment 4：
A kind of pulping process of pulp liquor using the present invention, specifically comprises the following steps：
（1）Prepare pulp liquor：5 parts of sodium hydroxide, 1 part of calcium carbonate, 3 parts of magnesium sulfate, salicylic acid are added in dispensing canister
4 parts of sodium, 2 parts of cellulase, 100 parts of water are configured to liquid, and then the liquid prepared is transported in retort with chemical pump；
（2）Reacting in retort inner liquid medicine with raw material, the raw material are to pass through prewashed blade, wood chip,
Reaction temperature is 80 DEG C, and reaction pressure is normal pressure, and the reaction time is 30 minutes；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to compounding in tank again, pump again to being repeated in retort
Utilize.
Embodiment 5：
A kind of pulping process of pulp liquor using the present invention, specifically comprises the following steps：
（1）Prepare pulp liquor：7 parts of sodium hydroxide, 1 part of calcium carbonate, 2 parts of magnesium sulfate, salicylic acid are added in dispensing canister
2 parts of sodium, 0.5 part of cellulase, 110 parts of water are configured to liquid, and the liquid prepared then is transported to retort with chemical pump
It is interior；
（2）Reacting in retort inner liquid medicine with raw material, the raw material are to pass through prewashed blade, wood chip,
Reaction temperature is 70 DEG C, and reaction pressure is normal pressure, and the reaction time is 40 minutes；
（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, falls
Sent on to conveyer belt to fluffer, adjust material concentration afterwards, be beaten,
（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and precipitates back
Receive, the liquid pumping of recycling is then configured to pulp liquor to compounding in tank again, pump again to being repeated in retort
Utilize.
Pulping process described in the embodiment of the present invention 2 and traditional pulping process are relatively had the following advantages：
1. slurry yield is high（By taking wheat straw bleached pulp as an example）；
1 pulping process of the present invention of table is compared with traditional pulping process-slurry yield
2. the quality of slurry is good；
Its item of high-strength corrugated base paper refer to made from pulping process through China National Pulp ＆ Paper Research Institute detection present invention
Mark is better than bleached sulphate softwood pulp standard, as shown in the table：
The index of high-strength corrugated base paper made from 2 pulping process of the present invention of table
3. small investment（By taking 100,000 tons of Straw Pulps as an example）；
3 pulping process of the present invention of table is compared with traditional slurrying-investment
4. water-saving and electricity-saving.
4 pulping process of the present invention of table and traditional slurrying-and water is used, power consumption compares
It is 5. cost-effective（In terms of wheat straw）.
5 pulping process of the present invention of table is compared with traditional slurrying-cost
It is of the present invention discongest, pulping process and discongesting in pulping process in the prior art, be beaten it is identical, herein not
Repeat again.
Pulp liquor of the present invention can occur the lignin in the fibrous raw materials such as blade, stalk, timber under low temperature, normal pressure
React, be modified, it is become hydrophilic substance, cause blade water suction to become larger in the short time, lignin structure is defeated and dispersed, to discongest
Strong condition is created into slurry, is used for non-wood or wood fibre slurrying using the pulping process of the pulp liquor, is realized
" no thermophilic digestion, without black liquor produce, non-wastewater discharge ", slurry is clean, is not required to substantial amounts of washing slurry, pollution-free, and China is made
Paper industry makes full use of straw resource to be of great significance.
Claims (1)
- A kind of 1. pulping process of paper-making pulping liquid, it is characterised in that：Pulp liquor is made of the raw material of following parts by weight： 3 parts of sodium hydroxide, 2 parts of calcium carbonate, 2 parts of magnesium sulfate, 3 parts of sodium salicylate, 1 part of cellulase, 100 parts of water；When carrying out slurrying using the pulp liquor, specifically comprise the following steps：（1）Prepare pulp liquor：The sodium hydroxide of the parts by weight, calcium carbonate, magnesium sulfate, salicylic acid are added in dispensing canister Sodium, cellulase, and water are configured to liquid, and then the liquid prepared is transported in retort with chemical pump；（2）React in retort inner liquid medicine with raw material, reaction temperature is 70-90 DEG C, and reaction pressure is normal pressure, during reaction Between be 30-50 minutes；（3）Discharge, discongest, be beaten：After the completion of reaction, resulting material sends out tank by retort outlet at bottom spiral transferring, drops down onto defeated Send to take and send to fluffer, adjust material concentration afterwards, be beaten,（4）The recycling of paper-making pulping liquid：Step（2）Liquid after reaction is delivered to desilting ditch and carries out precipitation recycling, so The liquid pumping of recycling is configured to pulp liquor to tank is compounded again afterwards, is pumped again to being reused in retort.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100569.4A CN105735022B (en) | 2016-02-24 | 2016-02-24 | A kind of paper-making pulping liquid and the pulping process using the liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100569.4A CN105735022B (en) | 2016-02-24 | 2016-02-24 | A kind of paper-making pulping liquid and the pulping process using the liquid |
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| Publication Number | Publication Date |
|---|---|
| CN105735022A CN105735022A (en) | 2016-07-06 |
| CN105735022B true CN105735022B (en) | 2018-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657697A (en) * | 2005-01-26 | 2005-08-24 | 李风宁 | Deink machine |
| CN1818205A (en) * | 2005-02-07 | 2006-08-16 | 雷金丰 | Catalytic pyrolyzing agent for pulping without steaming and boiling |
| CN101568685A (en) * | 2007-10-17 | 2009-10-28 | 凯米罗总公司 | Method for treating ligno-cellulosic materials |
| CN102021862A (en) * | 2009-09-10 | 2011-04-20 | 侯庆来 | Preparation method of pollution-free pulping catalyst |
| CN102191707A (en) * | 2010-12-30 | 2011-09-21 | 中冶美利纸业股份有限公司 | Low temperature rapid pulping process of reed |
-
2016
- 2016-02-24 CN CN201610100569.4A patent/CN105735022B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657697A (en) * | 2005-01-26 | 2005-08-24 | 李风宁 | Deink machine |
| CN1818205A (en) * | 2005-02-07 | 2006-08-16 | 雷金丰 | Catalytic pyrolyzing agent for pulping without steaming and boiling |
| CN101568685A (en) * | 2007-10-17 | 2009-10-28 | 凯米罗总公司 | Method for treating ligno-cellulosic materials |
| CN102021862A (en) * | 2009-09-10 | 2011-04-20 | 侯庆来 | Preparation method of pollution-free pulping catalyst |
| CN102191707A (en) * | 2010-12-30 | 2011-09-21 | 中冶美利纸业股份有限公司 | Low temperature rapid pulping process of reed |
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| Publication number | Publication date |
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| CN105735022A (en) | 2016-07-06 |
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