CN100507144C - Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together - Google Patents
Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together Download PDFInfo
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- CN100507144C CN100507144C CNB2005101311140A CN200510131114A CN100507144C CN 100507144 C CN100507144 C CN 100507144C CN B2005101311140 A CNB2005101311140 A CN B2005101311140A CN 200510131114 A CN200510131114 A CN 200510131114A CN 100507144 C CN100507144 C CN 100507144C
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Abstract
This invention relates to a method for making pulp with straws, which crushes wheat, rice and corn straws, adds with caustic soda solution, mixes them to generate a basic substance, then adds hydrogen peroxide in it and mixes them to generate acute resolving reaction to fully resolve and separate fibers and lignin in the crushed stalks then to be grinded, beat and cleaned to strip off the lignin and prepare straw pulp for making paper, in which, the weight percentage is: straws : caustic soda : hydrogen peroxide=1: 0.03-0.12: 0.04-0.13, the reaction temperature is controlled at 70-100deg.C and the result will be even better when some aids are added.
Description
Technical field
The present invention be a kind of be raw material with wheat straw, straw, corn stalk, reed stalks, utilize hydrogen peroxide and alkaline matter to produce the principle of vigorous reaction, produce the method for paper pulp.
Background technology
At present, the paper pulp of paper grade (stock) mainly contains two kinds of wood pulp and straw pulps, and wood pulp papermaking then will expend a large amount of timber, and China is the country of a forest reserves scarcity, the timber resources anxiety.And there are a large amount of wheat straws, straw, corn stalk etc. in the rural area, and except that being utilized on a small quantity, the most of burning caused significant wastage, and serious environment pollution.Utilize the straw of wheat straw, straw, corn stalk, reed bar etc. to produce straw pulp, paid attention to by China.But utilize straw to produce the method for straw pulp at present, exist and produce a large amount of black liquor Heisui River, serious environment pollution, and shortcoming such as complex process, investment be big, seriously restrict straws such as utilizing wheat straw, straw, corn stalk and produced straw pulp, influenced the industrial development of papermaking.
Summary of the invention
The purpose of this invention is to provide a kind of is raw material with straws such as wheat straw, straw, corn stalk, utilize hydrogen peroxide and alkaline matter to carry out vigorous reaction, and discharge this principle of heat energy, produce the method for paper pulp, it does not discharge black liquor Heisui River, free from environmental pollution, and technology is simple, small investment, easy to operate.
For achieving the above object, the technical scheme that the present invention takes is: utilize hydrogen peroxide and alkaline matter to produce vigorous reaction, and discharge this principle of heat energy, produce paper pulp.Be about to straw through pulverizing, add soda bath, stir, generate alkaline matter, add hydrogen peroxide again, stir, make hydrogen peroxide and alkaline matter carry out fierce decomposition reaction, fiber and lignin in the straw of pulverizing are carried out sufficient decomposition and separation, again through grinding the making beating washing, remove lignin, just can produce straw pulp, be used for papermaking.
Straw and caustic soda, hydrogen peroxide by its weight ratio are:
Straw: caustic soda: hydrogen peroxide=1:0.03～0.12:0.04～0.13;
Reaction temperature is controlled at 70～100 ℃.
As when adding soda bath, adds an amount of auxiliary agent, as: stabilizing agent, brighten decolorizer, washing agent etc., proper extension adds the gentle reaction time, and better effects if can satisfy the needs of high-grade blank sheet of paper production.
Straw can be a kind of in wheat straw or straw or corn stalk or the reed bar.
Hydrogen peroxide has another name called Liquor Hydrogen Peroxide, hydrogen peroxide, and molecular formula is H
2O
2Utilize it and alkaline matter that vigorous reaction can take place, and can produce this characteristic of a large amount of heat energy, the straw of hydrogen peroxide with the pulverizing of being alkalized by caustic soda decomposed cracking, also heats, with fiber and lignin decomposition and separation, through grinding the making beating washing, remove lignin again, produce straw pulp.In vigorous reaction, also cut down COD c r in a large number, thereby do not produced black liquor Heisui River.The straw pulp of producing, beating degree height, whiteness are good, as brightening conditioning with brightening decolorizer again, can satisfy various paper of whiteness requirements, and straw pulp is white and soft; Beating degree is better, reaches the requirement of high-quality straw pulp.And do not have the discharging of black liquor Heisui River, do not contain noxious material in the waste water of generation, only need to handle a little, just can be recycled.When adding soda bath, add an amount of auxiliary agent, as stabilizing agent, brighten decolorizer, washing agent etc., better effects if can satisfy the needs of high whiteness paper production.Therefore to have whole technical process both simple, easy to operate in the present invention, and do not have the discharging of black liquor Heisui River, and free from environmental pollution, the water of discharging is handled a little, just can be recycled, and water is few, and economize on electricity economizes coal, characteristics such as energy savings.
The specific embodiment
The present invention is that to utilize hydrogen peroxide be strong oxidizer, and it and alkaline matter produce vigorous reaction, and can produce these characteristics of heat energy, are applied to producing of straw pulp.Straw pulp is a raw material with wheat straw, straw, corn stalk, reed bar etc., can be wheat straw, can be straw, can be corn stalk, can be the reed bar.Straw after crushed, add soda bath, stir, make straw fully be soaked reaction, slowly add hydrogenperoxide steam generator then, and stir by soda bath, hydrogen peroxide and alkaline matter are fully reacted, the solution that will react the back generation again grinds the making beating washing, removes delignification, just can obtain beating degree, whiteness high-quality straw pulp preferably.Nurse one's health as this straw pulp is added auxiliary agent again, just can satisfy the production requirement of high whiteness paper.
Embodiment 1: get wheat straw 1000Kg, be crushed to below the 3Cm, put into the container that has agitating device, adding concentration is soda bath 150～300Kg of 30%, stirs, and wheat straw is soaked evenly, and fully reaction, the generation alkaline matter; Slowly add concentration then and be hydrogenperoxide steam generator 200～400Kg of 27.5%, start agitating device simultaneously, stir, hydrogen peroxide and alkaline matter are fully reacted, and produce a large amount of heats, and make reaction temperature be controlled at 70～100 ℃, just can produce straw pulp.Beat and to wash grinding after the straw pulp cooling of producing, remove delignification, just can satisfy the production requirement of paper.And do not have the discharging of black liquor Heisui River, do not contain noxious material in the waste water of generation, only need to handle a little, just can be recycled.
Embodiment 2: get straw 1000Kg, be crushed to below the 3Cm, put into the container that has agitating device, add soda bath 150～300Kg of 30%, stir, wheat straw is soaked evenly, add hydrogenperoxide steam generator 200～400Kg of 27.5% then, restart agitating device, stir, and fully reaction, generate alkaline matter; Hydrogen peroxide and alkaline matter are fully reacted, and produce a large amount of heats, make reaction temperature be controlled at 70～100 ℃, just can produce straw pulp.Beat and to wash grinding after the straw pulp cooling of producing, remove delignification, can satisfy the production requirement of paper equally.
Embodiment 3: get corn stalk 1000kg, be crushed to below the 3Cm, put into the container that has agitating device, add soda bath 200～300Kg of 30%, stir, wheat straw is soaked evenly, add hydrogenperoxide steam generator 250～350Kg of 27.5% then, restart agitating device, stir, and fully reaction, generate alkaline matter; Hydrogen peroxide and alkaline matter are fully reacted, and produce a large amount of heats, make reaction temperature be controlled at 70～95 ℃ (except that winter, the heat that produces during reaction just can reach said temperature basically, and can suitably heat winter), just can produce straw pulp.Beat and to wash grinding after the straw pulp cooling of producing, remove delignification, can satisfy the production requirement of paper equally.
Embodiment 4: get reed bar or weeds 1000kg, be crushed to below the 3Cm, put into the container that has agitating device, add soda bath 250～400Kg of 30%, stir, wheat straw is soaked evenly, add hydrogenperoxide steam generator 300～450Kg of 27.5% then, restart agitating device, stir, and fully reaction, generate alkaline matter; Hydrogen peroxide and alkaline matter are fully reacted, and produce a large amount of heats, make reaction temperature be controlled at 70～100 ℃, just can produce straw pulp.Beat and to wash grinding after the straw pulp cooling of producing, remove delignification, can satisfy the production requirement of paper equally.
In the above-described embodiment, when wheat straw, straw, corn stalk, reed stalks were fresh, clean, dry, soda bath, hydrogenperoxide steam generator can add less in right amount, otherwise then suitably add.When adding soda bath, adds an amount of auxiliary agent: stabilizing agent, brighten decolorizer, washing agent etc., better effects if can satisfy the needs of high-grade blank sheet of paper production.
Therefore the present invention is a kind of take wheat straw, straw, corn stalk, reed stalks as raw material, utilizes The intense reaction of strong oxidizer hydrogen peroxide and alkaline matter, and can produce a large amount of heat energy, produce paper grade (stock) Straw pulp. Therefore it is simple to have technology, easy operation control, and do not have the discharging of black liquor Heisui River, and free from environmental pollution, row The water of putting is processed a little, just can be recycled, and water is few, and economize on electricity economizes coal, the characteristics such as energy savings.
Claims (1)
1, a kind of method of utilizing hydrogen peroxide and alkali substance reaction to produce paper pulp is a raw material with the straw of wheat straw, straw, corn stalk, reed bar, it is characterized in that straw through pulverizing, add soda bath, stir, generate alkaline matter, add hydrogen peroxide again, stir, make hydrogen peroxide and alkalescence material carry out violent decomposition reaction, fiber and lignin in the straw of pulverizing are carried out sufficient decomposition and separation, again through grinding the making beating washing, remove lignin, just can produce straw pulp;
Straw and alkali, hydrogen peroxide by its weight ratio are:
Straw: caustic soda: hydrogen peroxide=1:0.03～0.12:0.04～0.13;
Reaction temperature is controlled at 70～100 ℃.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101311140A CN100507144C (en) | 2005-11-01 | 2005-12-21 | Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
| PCT/CN2006/003499 WO2007071187A1 (en) | 2005-12-21 | 2006-12-20 | A method for making paper pulp by reacting hydrogen peroxide and alkali substance |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510104438 | 2005-11-01 | ||
| CN200510104438.5 | 2005-11-01 | ||
| CNB2005101311140A CN100507144C (en) | 2005-11-01 | 2005-12-21 | Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
Publications (2)
| Publication Number | Publication Date |
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| CN1814910A CN1814910A (en) | 2006-08-09 |
| CN100507144C true CN100507144C (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101311140A Expired - Fee Related CN100507144C (en) | 2005-11-01 | 2005-12-21 | Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460595C (en) * | 2006-11-01 | 2009-02-11 | 北京聚德源环保科技有限公司 | Environment-friendly pulping agent and process |
| CN101613969B (en) * | 2008-06-25 | 2011-08-31 | 山东中科润环保科技有限公司 | Pulping process for paper product pulp |
| CN101748632B (en) * | 2008-12-05 | 2011-12-28 | 山东中科润环保科技有限公司 | Pulping process of paper pulp |
| CN102578710B (en) * | 2011-06-28 | 2014-06-04 | 许继东 | Production method of filter tip rod of wheat straw fiber cigarette |
| CN102363927B (en) * | 2011-11-02 | 2013-11-27 | 山东轻工业学院 | Clepulp preparation process for high-whiteness and high-strength chemical straw pulp |
| CN103924467A (en) * | 2014-04-21 | 2014-07-16 | 铜仁学院 | Pre-processing method of straw stalks |
| CN104593583B (en) * | 2014-12-24 | 2017-03-08 | 中国科学院地球化学研究所 | A kind of Wet-method preprocessing method of Carlin Trend refractory gold ore |
| CN115559146A (en) * | 2022-07-18 | 2023-01-03 | 张健一 | Process for extracting cellulose from straw |
-
2005
- 2005-12-21 CN CNB2005101311140A patent/CN100507144C/en not_active Expired - Fee Related
Non-Patent Citations (8)
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| 烟秆制碱性过氧化氢机械浆. 梁虎南，刘秉钺.黑龙江造纸，第3期. 2003 |
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