CN106120432B - The method for manufacturing paper pulp using corn leafage one kettle way - Google Patents

The method for manufacturing paper pulp using corn leafage one kettle way Download PDF

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CN106120432B
CN106120432B CN201610495117.0A CN201610495117A CN106120432B CN 106120432 B CN106120432 B CN 106120432B CN 201610495117 A CN201610495117 A CN 201610495117A CN 106120432 B CN106120432 B CN 106120432B
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reactor
corn
leafage
corn leafage
paper pulp
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CN106120432A (en
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刘延湘
刘君侠
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Jianghan University
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Jianghan University
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    • 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
    • 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
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

The invention discloses a kind of methods manufacturing paper pulp using corn leafage one kettle way, which is characterized in that it is Filamentous fine fibre of the length less than 1cm to crush fresh corn bud skin；Corn leafage after crushing is placed in reactor and is just submerged by the biological laccase solution of a concentration of 10 20g/L, 50 60 DEG C are kept for 20 24 hours；The H that volume is material total volume 10 20% in reactor is added2O2, quality be reactor in material gross mass 0.3 0.5% MgSO4And 3.0 5.0% Na2SiO3, pH to 9 10 is adjusted, keeps the constant boiling and bleachings at 90 100 DEG C of system pH to the white suede pulpous state of corn leafage；Cooled and filtered is rinsed, drying to corn leafage white paper pulp.Boiling and bleaching are carried out at the same time by the present invention using " one kettle way ", and without intermediate pollution products while simple for process, and initial stage melting process only crushes, and no waste water generates, and entire process costs are low and environmental-friendly.

Description

The method for manufacturing paper pulp using corn leafage one kettle way
Technical field
The present invention relates to pulp technology for making paper, in particular to a kind of method manufacturing paper pulp using corn leafage one kettle way.
Background technology
Agriculture and forestry organic waste material corn leafage, also referred to as bracteal leaf of corn are the coating part outside corn ear, content of cellulose Height, institutional framework are close, fibrous fraction height and wax thickness, are not easy to macerate rotten, influence crop root system development after returning to the field, and influence Cultivation, so be not suitable for cropland application, therefore most of corn leafage is simply discarded or on-site incineration, this not only causes money The serious waste in source also results in a degree of environmental pollution.
With expanding economy, in recent years China's increasing environmental pollution, especially take place frequently air " haze ", has seriously affected people Life and health, so country forbids the agro-ecologies waste such as crop straw burning, therefore seek comprehensive friendly to utilize these Waste is at the task of top priority.
Research shows that corn leafage fibre morphology is similar with wheat straw, and its length, intensity are preferable, but brittleness and shrinkage compared with Height can greatly increase the added value of itself if paper pulp papermaking can be used successfully to, and can also alleviate China to a certain extent The problem of paper-making fibre shortage of resources.Traditional paper-making process using wood fibre when will pass through stock, boiling, condensation, pulp washing, The complicated procedures of forming such as bleaching, wherein a large amount of high-concentration waste waters are generated, therefore papermaking is a high pollution industry, if one kind can be developed Corn leafage manufactures the environment protection method of paper pulp, then will create good economy, environment, economy of resources.
Invention content
Present invention aim to solve the deficiency of above-mentioned background technology, a kind of simple for process, small, cost of pollution is provided Low, the high method for manufacturing paper pulp using corn leafage one kettle way of pulp brightness.
The technical scheme is that：A method of manufacturing paper pulp using corn leafage one kettle way, which is characterized in that will It is Filamentous fine fibre of the length less than 1cm that fresh corn bud skin, which crushes,；Corn leafage after crushing is placed in dense in reactor Degree is that the biological laccase solution of 10-20g/L just submerges, and 50-60 DEG C is kept for 20-24 hours；It is object in reactor that volume, which is added, Expect the H of total volume 10-20%2O2, quality be reactor in material gross mass 0.3-0.5% MgSO4And 3.0-5.0% Na2SiO3, pH to 9-10 is adjusted, keeps the constant boiling and bleachings at 90-100 DEG C of system pH to the white suede pulpous state of corn leafage； Cooled and filtered is rinsed, drying to corn leafage white paper pulp.
Preferably, step is：
A. fresh corn bud skin is cut into segment, is put into pulverizer crushing 10-20S and obtains filiform of the length less than 1cm carefully Fiber；
B. the corn leafage after crushing is laid in reactor, a concentration of 10-20g/L biologies laccase solution is added to jade The luxuriant skin of rice is just completely submerged, and is kept for 20-24 hours at 50-60 DEG C；
C. the H that volume is material total volume 10-20% in reactor is added in reactor2O2It is anti-as bleaching agent, quality Answer the MgSO of material gross mass 0.3-0.5% in device4And the Na that quality is material gross mass 3.0-5.0% in reactor2SiO3 As stabilizer, pH to 9-10 is adjusted with sodium hydroxide, keeps system pH is constant to carry out boiling and bleaching 2-3h at 90-100 DEG C, Until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
Further, addition sodium hydroxide holding is spaced during boiling and bleaching after adjusting pH to 9.5 with sodium hydroxide System pH is constant.
Further, H is added2O2Volume is material total volume 15-20%, MgSO in reactor4Quality is object in reactor Expect gross mass 0.4-0.5% and Na2SiO3Quality is material gross mass 4.0-5.0% in reactor.
Preferably, the filtrate that cooled and filtered obtains, for the bleaching liquid in manufacture next time pulping process.
Further, when filtrate manufactures the bleaching liquid in paper pulp as next time, it will crush and be less than 1cm for length The fresh corn bud skin of shape fine fibre, which is placed in reactor, to be bleached liquid and just submerges, and 50-60 DEG C is kept for 20-24 hours；It adjusts PH to 9-10 keeps the constant boiling and bleaching 3-4h at 90-100 DEG C of system pH to the white suede pulpous state of corn leafage；After cooling Filtration and washing, drying to corn leafage white paper pulp.
Beneficial effects of the present invention are：
1. total chlorine free bleaching has become the inexorable trend of bleaching development in paper pulp fabrication process.H2O2Bleaching is because with drift The advantages that white at low cost, pollution is less, bleached pulp cleanliness factor is high, retention of whiteness is good, reduces the discharge of waste water.In pulping and paper-making Highly selective feature of the middle biological laccase of application in terms of oxidative degradation lignin is pre-processed, and subsequent drift is can aid in In vain.
2. in existing paper technology, the process that boiling is separated with bleaching, boiling is to convert plant fiber material to Paper pulp, bleaching are that oxidative bleaches are destroyed the structure of lignin and coloring matter to be worth purity and whiteness, the two to improve Will produce high-concentration waste water, and boiling is carried out at the same time by the present invention using " one kettle way " with bleaching, while simple for process without Intermediate pollution products, bleaching agent filtrate can also recycle, and initial stage melting process only crushes, and no waste water generates, Entire process costs are low and environmental-friendly.
Description of the drawings
Fig. 1 is the process flow chart of the present invention
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 10S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 20g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 24 hours at 60 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 10% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.3% in reactor4And quality is anti- Answer the Na of material gross mass 3.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=9.5), corn leafage is in yellow at this time, boiling and bleaching 2h is carried out at 100 DEG C, during boiling and bleaching reaction discontinuously Add NaOH into reactor, it is 9.5 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 73.4%.
Embodiment 2
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 15S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 10g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 20 hours at 50 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 12% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.4% in reactor4And quality is anti- Answer the Na of material gross mass 4.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=9), corn leafage is in yellow at this time, carries out boiling and bleaching 2.5h at 95 DEG C, boiling and bleaching react during discontinuously to Add NaOH in reactor, it is 9 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 70.1%.
Embodiment 3
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 20S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 12g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 21 hours at 55 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 15% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.5% in reactor4And quality is anti- Answer the Na of material gross mass 5.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=10), corn leafage is in yellow at this time, carries out boiling and bleaching 3h at 90 DEG C, boiling and bleaching react during discontinuously to Add NaOH in reactor, it is 10 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 69.3%.
Embodiment 4
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 10S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 16g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 22 hours at 52 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 20% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.35% in reactor4And quality is The Na of material gross mass 3.5% in reactor2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (this implementation The preferred pH=9.8 of example), corn leafage is in yellow at this time, and boiling and bleaching 2h is carried out at 100 DEG C, and boiling and bleaching is interrupted during reacting Ground adds NaOH into reactor, and it is 9.8 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 74.5%.
Embodiment 5
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 16S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 15g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 20 hours at 58 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 10% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.45% in reactor4And quality is The Na of material gross mass 4.5% in reactor2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (this implementation The preferred pH=9 of example), corn leafage is in yellow at this time, boiling and bleaching 2.5h is carried out at 92 DEG C, during boiling and bleaching reaction discontinuously Add NaOH into reactor, it is 9 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 68.4%.
Embodiment 6
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 20S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 20g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 24 hours at 60 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 18% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.3% in reactor4And quality is anti- Answer the Na of material gross mass 5.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=10), corn leafage is in yellow at this time, carries out boiling and bleaching 3h at 90 DEG C, boiling and bleaching react during discontinuously to Add NaOH in reactor, it is 10 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 75.3%.
Embodiment 7
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 12S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 10g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 23 hours at 55 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 20% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.4% in reactor4And quality is anti- Answer the Na of material gross mass 3.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=9.2), corn leafage is in yellow at this time, carries out boiling and bleaching 2h at 94 DEG C, boiling and bleaching react during discontinuously to Add NaOH in reactor, it is 9.2 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 88.1%.
Embodiment 8
As shown in Figure 1, method of the present invention using corn leafage one kettle way manufacture paper pulp, step are：
A. fresh not air-dried green corn bud skin is cut into length 3-5cm segments, is put into pulverizer and crushes 18S, obtains Length is less than the Filamentous fine fibre of 1cm；
B., corn leafage after crushing is laid in reactor to (reactor that the present invention uses is all types of flat adds The container of heat), the interior a concentration of 15g/L biologies laccase aqueous solution of addition of reactor is just completely submerged to corn leafage, System is kept for 22 hours at 50 DEG C；
C. it is (i.e. biological laccase aqueous solution and the corn bud being immersed of material in reactor that volume is added in reactor Skin) total volume 15% H2O2As bleaching agent, the MgSO that quality is material gross mass 0.5% in reactor4And quality is anti- Answer the Na of material gross mass 4.0% in device2SiO3As stabilizer, solid NaOH regulation systems pH is added to 9-10 (the present embodiment It is preferred that pH=9.5), corn leafage is in yellow at this time, boiling and bleaching 3h is carried out at 100 DEG C, during boiling and bleaching reaction discontinuously Add NaOH into reactor, it is 9.5 so that reaction environment is maintained at pH, until the white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is white to corn leafage at being rinsed 3-5 times, 105 DEG C with clear water Coloured paper is starched.
The pulp brightness that detection obtains corn leafage white paper pulp is 77.4%.
When the filtrate that cooled and filtered obtains in step d manufactures the bleaching liquid of paper pulp as next time：
Embodiment 9
Using the filtrate of step d in embodiment 1 as the present embodiment bleaching liquid
The fresh corn bud skin for being less than 1cm filiform fine fibres for length will have been crushed to be laid in reactor, be bleached Liquid just submerges, and 50 DEG C are kept for 20 hours, and sodium hydroxide is added and adjusts pH to 9, and boiling and bleaching 3h is in corn leafage at 90 DEG C White suede pulpous state, boiling and bleaching is spaced in the process is added sodium hydroxide holding system pH=9；It filters and is sieved through through 100 mesh after cooling Filter is rinsed 3-5 times with clear water；Drying is to corn leafage white paper pulp at 105 DEG C.
The pulp brightness that detection obtains corn leafage white paper pulp is 61.6%.
Embodiment 10
Using the filtrate of step d in embodiment 3 as the present embodiment bleaching liquid
The fresh corn bud skin for being less than 1cm filiform fine fibres for length will have been crushed to be laid in reactor, be bleached Liquid just submerges, and 60 DEG C are kept for 24 hours, and sodium hydroxide is added and adjusts pH to 10, boiling and bleaching 3.5h is luxuriant to corn at 100 DEG C The white suede pulpous state of skin, boiling and bleaching is spaced in the process is added sodium hydroxide holding system pH=10；It is filtered through 100 mesh after cooling It is sieved through filter, is rinsed 3-5 times with clear water；Drying is to corn leafage white paper pulp at 105 DEG C.
The pulp brightness that detection obtains corn leafage white paper pulp is 58.3%.
Embodiment 11
Using the filtrate of step d in embodiment 5 as the present embodiment bleaching liquid
The fresh corn bud skin for being less than 1cm filiform fine fibres for length will have been crushed to be laid in reactor, be bleached Liquid just submerges, and 55 DEG C are kept for 22 hours, and sodium hydroxide is added and adjusts pH to 9.5, and boiling and bleaching 4h is to corn leafage at 95 DEG C White suede pulpous state, boiling and bleaching is spaced in the process is added sodium hydroxide holding system pH=9.5；It is filtered through 100 mesh after cooling It is sieved through filter, is rinsed 3-5 times with clear water；Drying is to corn leafage white paper pulp at 105 DEG C.
The pulp brightness that detection obtains corn leafage white paper pulp is 60.1%.

Claims (4)

1. a kind of method manufacturing paper pulp using corn leafage one kettle way, which is characterized in that crushing fresh corn bud skin for length Filamentous fine fibre of the degree less than 1cm；Corn leafage after crushing is placed in reactor and is painted by the biology of a concentration of 10-20g/L Enzyme solutions just submerge, and 50-60 DEG C is kept for 20-24 hours；The H that volume is material total volume 10-20% in reactor is added2O2、 Quality is the MgSO of material gross mass 0.3-0.5% in reactor4And the Na of 3.0-5.0%2SiO3, pH to 9-10 is adjusted, is protected The constant boiling and bleachings at 90-100 DEG C of system pH are held to the white suede pulpous state of corn leafage；Cooled and filtered is rinsed, and drying is Obtain corn leafage white paper pulp.
2. utilizing the method for corn leafage one kettle way manufacture paper pulp as described in claim 1, which is characterized in that step is：
A. fresh corn bud skin is cut into segment, is put into pulverizer and crushes the Filamentous fine fibre that 10-20S obtains length less than 1cm；
B. the corn leafage after crushing is laid in reactor, a concentration of 10-20g/L biologies laccase solution is added to corn bud Skin is just completely submerged, and is kept for 20-24 hours at 50-60 DEG C；
C. the H that volume is material total volume 10-20% in reactor is added in reactor2O2It is reactor as bleaching agent, quality The MgSO of middle material gross mass 0.3-0.5%4And the Na that quality is material gross mass 3.0-5.0% in reactor2SiO3As Stabilizer adjusts pH to 9-10 with sodium hydroxide, keeps system pH is constant to carry out boiling and bleaching 2-3h at 90-100 DEG C, until The white suede pulpous state of corn leafage；
D. it is filtered through 100 mesh sieves after cooling down, drying is to corn leafage white paper at being rinsed 3-5 times, 105 DEG C with clear water Slurry.
3. utilizing the method for corn leafage one kettle way manufacture paper pulp as claimed in claim 1 or 2, which is characterized in that use hydroxide Interval addition sodium hydroxide keeps system pH constant during boiling and bleaching after sodium adjusting pH to 9.5.
4. utilizing the method for corn leafage one kettle way manufacture paper pulp as claimed in claim 1 or 2, which is characterized in that H is added2O2Body Product is material total volume 15-20%, MgSO in reactor4Quality be reactor in material gross mass 0.4-0.5% and Na2SiO3Quality is material gross mass 4.0-5.0% in reactor.
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