CN1542217A - Method for preparing paper pulp by pharmaceutically catalyzing plant fiber at normal temperature and pressure - Google Patents
Method for preparing paper pulp by pharmaceutically catalyzing plant fiber at normal temperature and pressure Download PDFInfo
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- CN1542217A CN1542217A CNA2003101056025A CN200310105602A CN1542217A CN 1542217 A CN1542217 A CN 1542217A CN A2003101056025 A CNA2003101056025 A CN A2003101056025A CN 200310105602 A CN200310105602 A CN 200310105602A CN 1542217 A CN1542217 A CN 1542217A
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Abstract
The normal temperature and normal pressure catalytic reaction process of producing paper pulp with plant fiber adopts synthetic and re-compounded chemicals. The process includes adding emulsifier and initiator into monomer material to make intermediate polymer under certain pressure, temperature and pH value; adding activator, softener, stabilizer, inhibitor and other assistant to re-compound the chemicals; mixing the intermediate polymer and the chemicals to produce catalytic reaction to dissolve and separate lignin from cellulose mildly while decoloring; soaking to produce chemical reaction to separate chemical solution; flocculating, depositing and separating to obtain clear liquid for reuse; and circulating chemicals. The present invention produces no waste water, has high pulp yield, high pulp strength, saving in power, low cost and other advantages.
Description
Technical field: the present invention relates to a kind of method of making paper pulp, relate in particular to the method for medicine catalytic reaction string manufacturing paper pulp under the normal temperature and pressure.
Background technology: have a long history with pulp of vegetable fibre material papermaking,, can make mechanical pulp, chemi-mechanical pulp, semi-chemical pulp and chemical pulp industrial according to the difference of pulping process.Traditional pulping process technology, except that mechanical pulp completely, the paper pulp of other kinds all is to utilize different chemical substances, as: lime, caustic soda, akali sulphide, sulphite etc. are made digestant, under quite high temperature and pressure fibrous raw material are carried out boiling and make.Produce a large amount of black liquor in the pulping digestion process, environment is caused severe contamination.Just because of this, domestic various papermaking producer has to close stopping production, and the helpless throwing huge fund of the producer that also has is built between the alkali recovery vehicle, but benefit is not good.Because the pulping and paper-making industry is subjected to the restriction of black liquor pollution environment, has seriously limited the development of the sector.
Summary of the invention: the objective of the invention is to, overcome the deficiencies in the prior art part, thereby especially overcoming existing pulping technique needs the High Temperature High Pressure boiling to produce the drawback of a large amount of black liquor, the method of medicine catalytic reaction string manufacturing paper pulp under a kind of normal temperature and pressure is provided, what adopt is gentle slurrying condition, apolegamy be efficient chemical agent and make the paper pulp that meets the papermaking quality requirement.Medicine catalytic reaction string is made the method for paper pulp under the normal temperature and pressure of the present invention, and related plant fiber material is: (1) grass family stem stalk fiber class: straw, wheat straw, reed, bagasse, bamboo, sorghum stalk, cornstalk, cotton stalk; (2) lumber fibre class: needlebush, leaf wood (comprising white poplar, Cathay poplar, the living poplar of speed); (3) bast fiber class: hemp, flax, jute; (4) leaf fibre; (5) seed hair: cotton, cotton linter etc.
The chemicals that the present invention uses belongs to fine chemical product, and its making comprises chemical synthesis and two processes of compound preparation.At first in raw material monomer, add emulsifying agent, initator, under certain pressure condition,, make a kind of intermediate polymer by control temperature, pH value.Then,, add multiple auxiliary agents such as activator (catalyst), softening agent, stabilizing agent, inhibitor again according to the different requirements of slurrying, compound formulated, to satisfy the needs that slurrying is produced.The composition of plant fiber material mainly comprises cellulose, hemicellulose, lignin and colloidal substance four classes.The pulping and paper-making utilization be cellulose, usefully hemicellulose in pulping process, be separated harmful components lignin in the plant fiber material and miscellany colloidal substance to greatest extent.Evidence, the black liquor color that produces in pulping digestion process mainly is owing to isolated lignin and the organic pigment that other miscellany colloidal substances produce come.Color is different with the difference of lignin separation method, and the separation method gentle color that heals is more shallow, in addition, in pulping process, can be because the condensation of lignin make darkening of lignin.The present invention is not by boiling, employed chemical liquid is issued to plant fiber material at normal temperature and pressure conditions and mixes, soaks into, pass through catalytic reaction, lignin is leniently separated with cellulose, and be dissolved in the soup, thereby limited the condensation course of lignin, simultaneously, follow organic pigment in soup and the raw material and lignin generation oxidation reaction and decolour, make pulping process not produce the black waste liquid.The pulping machinery chemical process that the method for the catalytic reaction of medicine at normal temperatures and pressures string manufacturing paper pulp of the present invention is passed through is: be example with the wheat straw, raw material at first prescinds through chaffcutter, screen out impurity, pass through grass chopper again, realize further prescinding, rub, pulverizing, comprehensive process, then carry out the medical jet spray and become moistening, wet feed is handled through undue silk machine again, enter the intermediate regulations pond by spiral propeller, then pump into catalytic reactor, implement chemical reaction process with immersion way.Soak time is generally 2 to 6 hours, but accelerated reaction under the condition of heating, and pulp brightness can reach more than 40 degree.After the cessation reaction, pump into acroll press washer, realize Separation of Solid and Liquid with pulp pump.The slurry of separating is transported to fiberizer, implements to grind, and promptly becomes paper pulp.Be transported to the washing workshop by pipeline again, promptly finished the overall process of ryegrass pulping.The soup of separating through becoming cleaning liquor after flocculation, precipitation, the separation, keeps active ingredient, and continuation was used after preparation replenished, and pulping process is realized zero-emission.
Use the method for medicine catalytic reaction string manufacturing paper pulp under the normal temperature and pressure of the present invention, mainly make raw material production paper pulp with string, can use grass, also can use the trees or the branch of becoming a useful person, consider from the angle of productivity effect, should use the raw material of the high biomass material of cellulosic content as much as possible, such as wheat straw, straw, bagasse or the like as papermaking.Because the method for medicine catalytic reaction string manufacturing paper pulp has adopted gentle chemical reaction mode under the normal temperature and pressure of the present invention, so in manufacturing process, do not produce black liquor, medicine recycles and does not produce waste water, the slurry yield height, the pulp strength height, energy savings, bleaching easily, the later stage middle section water is more easily handled, and whole process operation cost is low.
Description of drawings: accompanying drawing is the process chart that the catalytic reaction of medicine at normal temperatures and pressures string of the present invention is made the paper pulp method.1-2-the chaffcutter 3 of selecting materials-broken careless 4-mixing, 5-minute silk 6-conveying 7-reaction 8-slurries separate 9-defibrination 10-storage slurry 11-pump slurry 12-time medicine 13-soup purification 14-medicine reuse
The specific embodiment: referring now to accompanying drawing, be described in detail as follows in conjunction with the embodiments: medicine catalytic reaction string is made the method for paper pulp under the normal temperature and pressure of the present invention, include and select materials 1, chaffcutter 2, broken careless 3, mix 4, divide silk 5, carry 6, reaction 7, slurries separate 8, defibrination 9, storage slurry 10, pump slurry 11, return medicine 12, soup purify 13 and medicine reuse 14 form.Saidly select materials 1, the time select suitable pulped material for use, stand-by.Cataclasm through chaffcutter 2, further cataclasm through broken careless 3 again.Said mixing 4 is that composite good chemical liquid is mixed with the raw material thing in the mode of spray.Rub through minute silk 5, deliver in reaction 7 the reaction tank and react through carrying 6.The coarse particles of reaction terminating is delivered to equipment for separating liquid from solid, implements slurries and separates 8.The solids that is separated is delivered to defibrination 9 and is implemented to grind, and delivers to storage through the slurry that grinds refinement and starches 10 reserve pit, delivers to the washing workshop through pump slurry 11.Separate 8 isolated soups through slurries,, carry out soup and purify 13, arrive medicine reuse 14 then through returning medicine 12.Related plant fiber material is: 1. grass family stem stalk fiber class: straw, wheat straw, reed, bagasse, bamboo, sorghum stalk, cornstalk, cotton stalk; 2. lumber fibre class: needlebush, leaf wood (comprising white poplar, Cathay poplar, the living poplar of speed); 3. bast fiber class: hemp, flax, jute; 4. leaf fibre; 5. seed hair: cotton, cotton linter etc.The chemicals that the present invention uses belongs to fine chemical product, and its making comprises chemical synthesis and two processes of compound preparation.At first in intermediate feed, add emulsifying agent, initator, under certain pressure condition,, make a kind of intermediate polymer by control temperature, pH value.Then,, add multiple auxiliary agents such as activator (catalyst), softening agent, stabilizing agent, inhibitor again according to the different requirements of slurrying, compound formulated, to satisfy the needs that slurrying is produced.The composition of plant fiber material mainly comprises cellulose, hemicellulose, lignin and colloidal substance four classes.The pulping and paper-making utilization be cellulose, usefully hemicellulose in pulping process, be separated harmful components lignin in the plant fiber material and miscellany colloidal substance to greatest extent.Evidence, the black liquor color that produces in pulping digestion process mainly is owing to isolated lignin and the organic pigment that other miscellany colloidal substances produce come.Color is different with the difference of lignin separation method, and the separation method gentle color that heals is more shallow, in addition, in pulping process, can be because the condensation of lignin make darkening of lignin.The present invention is not by boiling, employed chemical liquid is issued to plant fiber material at normal temperature and pressure conditions and mixes, soaks into, pass through catalytic reaction, lignin is leniently separated with cellulose, and be dissolved in the soup, thereby limited the condensation course of lignin, simultaneously, follow organic pigment in soup and the raw material and lignin generation oxidation reaction and decolour, make pulping process not produce the black waste liquid.The pulping machinery chemical process that the method for the catalytic reaction of medicine at normal temperatures and pressures string manufacturing paper pulp of the present invention is passed through is: be example with the wheat straw, raw material at first prescinds through chaffcutter, screen out impurity, pass through grass chopper again, realize further prescinding, rub, pulverizing, comprehensive process, then carry out the medical jet spray and become moistening, wet feed is handled through undue silk machine again, enter the intermediate regulations pond by spiral propeller, then pump into catalytic reactor, implement chemical reaction process with immersion way.Soak time is generally 2 to 6 hours, but accelerated reaction under the condition of heating, and pulp brightness can reach more than 40 degree.After the cessation reaction, pump into acroll press washer, realize Separation of Solid and Liquid with pulp pump.The slurry of separating is transported to fiberizer, implements to grind, and promptly becomes paper pulp.Be transported to the washing workshop by pipeline again, promptly finished the overall process of ryegrass pulping; The soup of separating through becoming cleaning liquor after flocculation, precipitation, the separation, keeps active ingredient, and continuation was used after preparation replenished, and pulping process is realized zero-emission.Use the catalytic reaction of medicine at normal temperatures and pressures string of the present invention to make the method for paper pulp, mainly make raw material production paper pulp with string, can use grass, also can use the trees or the branch of becoming a useful person, consider from the angle of productivity effect, should use the raw material of the high biomass material of cellulosic content as much as possible, such as wheat straw, straw, bagasse or the like as papermaking.Because the catalytic reaction of medicine at normal temperatures and pressures string of the present invention is made the method for paper pulp and has been adopted gentle chemical reaction mode, so in manufacturing process, do not produce black liquor, medicine recycles and does not produce waste water, the slurry yield height, the pulp strength height, energy savings, bleaching easily, the later stage middle section water is more easily handled, and whole process operation cost is low.
Claims (5)
1, medicine catalytic reaction string is made the method for paper pulp under the normal temperature and pressure, and related plant fiber material is: 1. grass family stem stalk fiber class: straw, wheat straw, reed, bagasse, bamboo, sorghum stalk, cornstalk, cotton stalk; 2. lumber fibre class: needlebush, leaf wood (comprising white poplar, Cathay poplar, the living poplar of speed); 3. bast fiber class: hemp, flax, jute; 4. leaf fibre; 5. seed hair: cotton, cotton linter, it is characterized in that the chemical liquid that uses is issued to plant fiber material at normal temperature and pressure conditions mixes, soaks into, pass through catalytic reaction, lignin is leniently separated with cellulose, and be dissolved in the soup, thereby limited the condensation course of lignin, simultaneously, followed organic pigment in soup and the raw material and lignin generation oxidation reaction and decolour.
2, medicine catalytic reaction string is made the method for paper pulp under the normal temperature and pressure according to claim 1, it is characterized in that said chemicals belongs to fine chemical product, its making comprises chemical synthesis and two processes of compound preparation, at first in raw material monomer, add emulsifying agent, initator, under certain pressure condition, by the control temperature, pH value, make a kind of intermediate polymer, then, different requirements according to slurrying, add activator (catalyst) again, softening agent, stabilizing agent, multiple auxiliary agent such as inhibitor, compound formulated, to satisfy the needs that slurrying is produced.
3, the method for medicine catalytic reaction string manufacturing paper pulp under the normal temperature and pressure according to claim 1, it is characterized in that said pulping machinery chemical process is: be example with the wheat straw, raw material at first prescinds through chaffcutter, screen out impurity, pass through grass chopper again, realize further prescinding, rub, pulverizing, comprehensive process, then carry out the medical jet spray and become moistening, wet feed is handled through undue silk machine again, enter the intermediate regulations pond by spiral propeller, then pump into catalytic reactor, implement chemical reaction process with immersion way.
4, the method for medicine catalytic reaction string manufacturing paper pulp under the normal temperature and pressure according to claim 1, it is characterized in that soaking the reaction time was generally 2 to 6 hours, but the accelerated reaction of heating, after the cessation reaction, pump into acroll press washer with pulp pump, realize Separation of Solid and Liquid, the slurry of separating is transported to fiberizer, implement to grind, promptly become paper pulp.
5, the method for medicine catalytic reaction string manufacturing paper pulp under the normal temperature and pressure according to claim 1, it is characterized in that the soup separated, through becoming cleaning liquor after flocculation, precipitation, the separation, keep active ingredient, continuation was used after preparation replenished.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2003101056025A CN1542217A (en) | 2003-11-04 | 2003-11-04 | Method for preparing paper pulp by pharmaceutically catalyzing plant fiber at normal temperature and pressure |
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| CNA2003101056025A CN1542217A (en) | 2003-11-04 | 2003-11-04 | Method for preparing paper pulp by pharmaceutically catalyzing plant fiber at normal temperature and pressure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054777B (en) * | 2006-04-13 | 2011-05-18 | 安德里兹有限公司 | Hardwood alkaline pulping processes and systems |
| CN102392377A (en) * | 2011-10-28 | 2012-03-28 | 邹平福海科技发展有限公司 | Electrocatalysis oxidation pulping method for purified cotton and production system equipment |
| CN103614942A (en) * | 2013-11-08 | 2014-03-05 | 尚诚德 | Pollution-free papermaking process utilizing crop straws |
| CN107460753A (en) * | 2017-09-04 | 2017-12-12 | 山东东平容业达植物纤维科技有限公司 | A kind of compound drug and compound method for string extraction |
| CN107513875A (en) * | 2017-09-04 | 2017-12-26 | 天津容业达科技发展有限公司 | A kind of technique of weak alkalinity extraction rice-wheat straw fibre |
| CN107542012A (en) * | 2017-09-04 | 2018-01-05 | 山东东平容业达植物纤维科技有限公司 | A kind of disposable environmental protection tableware |
| CN107723809A (en) * | 2017-11-02 | 2018-02-23 | 天津容业达科技发展有限公司 | A kind of stalk fibre extraction process |
-
2003
- 2003-11-04 CN CNA2003101056025A patent/CN1542217A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054777B (en) * | 2006-04-13 | 2011-05-18 | 安德里兹有限公司 | Hardwood alkaline pulping processes and systems |
| CN102392377A (en) * | 2011-10-28 | 2012-03-28 | 邹平福海科技发展有限公司 | Electrocatalysis oxidation pulping method for purified cotton and production system equipment |
| CN103614942A (en) * | 2013-11-08 | 2014-03-05 | 尚诚德 | Pollution-free papermaking process utilizing crop straws |
| CN103614942B (en) * | 2013-11-08 | 2016-04-13 | 尚诚德 | One utilizes agricultural crop straw pollution-free paper-making technology |
| CN107460753A (en) * | 2017-09-04 | 2017-12-12 | 山东东平容业达植物纤维科技有限公司 | A kind of compound drug and compound method for string extraction |
| CN107513875A (en) * | 2017-09-04 | 2017-12-26 | 天津容业达科技发展有限公司 | A kind of technique of weak alkalinity extraction rice-wheat straw fibre |
| CN107542012A (en) * | 2017-09-04 | 2018-01-05 | 山东东平容业达植物纤维科技有限公司 | A kind of disposable environmental protection tableware |
| CN107723809A (en) * | 2017-11-02 | 2018-02-23 | 天津容业达科技发展有限公司 | A kind of stalk fibre extraction process |
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