WO2006098531A1 - Manufacturing method of semichemical mechanical pulp from cornstalk - Google Patents
Manufacturing method of semichemical mechanical pulp from cornstalkInfo
- Publication number
- WO2006098531A1 WO2006098531A1 PCT/KR2005/001389 KR2005001389W WO2006098531A1 WO 2006098531 A1 WO2006098531 A1 WO 2006098531A1 KR 2005001389 W KR2005001389 W KR 2005001389W WO 2006098531 A1 WO2006098531 A1 WO 2006098531A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cornstalks
- pulp
- manufacturing
- refining
- semichemical
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 229920001131 Pulp (paper) Polymers 0.000 title abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 48
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 238000007670 refining Methods 0.000 claims abstract description 20
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 16
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 13
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 18
- 235000010265 sodium sulphite Nutrition 0.000 claims description 9
- 238000010025 steaming Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000007844 bleaching agent Substances 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- 238000004061 bleaching Methods 0.000 abstract description 5
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 26
- 238000004537 pulping Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 240000007313 Tilia cordata Species 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000005638 Austrian pine Nutrition 0.000 description 1
- 241000209128 Bambusa Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241000219495 Betulaceae Species 0.000 description 1
- 208000003643 Callosities Diseases 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000008565 Pinus banksiana Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 244000019397 Pinus jeffreyi Species 0.000 description 1
- 235000013264 Pinus jeffreyi Nutrition 0.000 description 1
- 235000008578 Pinus strobus Nutrition 0.000 description 1
- 235000008585 Pinus thunbergii Nutrition 0.000 description 1
- 235000014030 Podocarpus spicatus Nutrition 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002972 pentoses Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000017985 rocky mountain lodgepole pine Nutrition 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/001—Devices for lighting, humidifying, heating, ventilation
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/405—Lighting for industrial, commercial, recreational or military use for shop-windows or displays
Definitions
- the present invention relates to a manufacturing method of semichemical mechanical pulp from cornstalks. More particularly, it relates to a manufacturing method of semichemical mechanical pulp capable of manufacturing environment- friendly pulp from cornstalks and manufacturing characteristic paper.
- a new pulp material should be developed because fostering pulp industry results in destruction of forest resources. To do so, cellulose present in a variety of plants should be processed and treated to improve their value as paper materials. Rich countries in forest resources separate fibrous cellulose from wood to produce paper pulp and dissolving pulp. Therefore, over 90 % of pulp produced across the world is made from wood. However, with a plant distribution inappropriate for pulping and with a dearth of forest resources, Korea has to find a new strategy.
- Corns cultivated in farms are used as food. But, cornstalks are mostly discarded even without being used as fodder. In the light of resources utilization and farmers' income augmentation, cornstalks need to be processed and treated to be useful for pulp or other materials, as in development of the Korean paper.
- Pulps can be classified into mechanical pulp, semichemical pulp and chemical pulp, depending on the pulping process.
- Mechanical pulp is manufactured by dissolving wood by mechanical grinding in the presence of water.
- Acicular trees having fiber Ie ngth such as spruce, fir, pine and black pine, are pulped by this method.
- Semichemical pulp is manufactured by steaming wood with a neutral sulfite solution and dissolving it through mechanical treatment.
- Light and soft trees, such as poplar, willow, linden tree, beech, oak, alder tree and ash tree, are pulped by this method.
- Chemical pulp is manufactured by adding a mixture solution of sulfurous acid and an acidic sulfite to a fibrous material and steaming it. Trees with low resin content are manufacture into chemical pulp for easy chemical treatment.
- U.S. Patent No. 1,845,487 disclosed a method of preparing cellulose by steaming and dissolving plants with a small lignin content and a high pentosan (a pentose) content with dilute sulfuric acid or with sulfuric acid and a pressure of 10 pounds, and a pulping process of heating and pressing chipped or powdered cornstalks with a 1 % sulfuric acid solution to remove water-soluble materials.
- U.S. Patent No. 5,944,953 disclosed a pulping process for simultaneous mechanical and chemical defibration of cornstalks and straws. It mentions using soda (NaOH), lime soda (CaO , NaOH) and neutral sulfite (Na SO , NaOH). Although not specifying the addition amount, it describes pulp making by refining cornstalks with 10-15 wt% of KOH and 1-5 wt% of K SO , based on the dry weight of the cornstalk, at 90 °C for 30-60 minutes.
- the manufacturing method of semichemical mechanical pulp from cornstalks comprises: (1) a pretreatment process of cutting cornstalks to a size of 1 cm x 1 cm to 5 cm x 5 cm; (2) a chemical treatment process of adding a mixture of 0.05-3.0 wt% of caustic soda and 0.2-5 wt% of sodium sulfite, based on the total weight of the pretreated cornstalks, and applying heat and pressure in the range of 25-45 °C and 3-10 kg/cm 2 ; (3) a first refining process of defibrating the chemical-treated cornstalks with a refiner; and (4) a second refining process of adding 5-20 wt% of hydrogen peroxide and 7-30 wt% of sodium silicate, based on the total weight of the pretreated cornstalks, to refine and bleach them.
- the manufacturing method of semichemical mechanical pulp from cornstalks is characterized by comprising: (1) a pretreatment process of cutting cornstalks to a size of 1 cm x 1 cm to 5 cm x 5 cm; (2) a chemical treatment process of adding a mixture of 0.05-3.0 wt% of caustic soda and 0.2-5 wt% of sodium sulfite, based on the total weight of the pretreated cornstalks, and applying heat and pressure in the range of 25-45 °C and 3-10 kg/cm ; (3) a first refining process of defibrating the chemical-treated cornstalks with a refiner; and (4) a second refining process of adding 5-20 wt% of hydrogen peroxide and 7-30 wt% of sodium silicate, based on the total weight of the pretreated cornstalks, while bleaching them.
- cornstalks are cut to a size of 1 cm x 1 cm to 5 cm x
- the cornstalk is about
- the size of the cornstalks to be pretreated is preferably in the range of 1 cm x 1 cm to 5 cm x 5 cm, although not particularly important. If the size of the cornstalks is below 1 cm x 1 cm, energy consumption increases. Otherwise, if it exceeds 5 cm x 5 cm, the succeeding chemical treatment process takes more time.
- addition amount of sodium sulfite is below 0.2 wt%, based on the total weight of the cornstalks, flexibility of fibers may decrease. Otherwise, if it exceeds 5 wt%, amount of fibers may decrease.
- Application of pressure may be performed with a screw press, etc.
- the chemical-treated cornstalks are defribrated with a refiner.
- such materials as resin are extracted and removed from the cornstalks and lignin is softened to improve fiber length and mechanical properties of the resultant pulp.
- a heat treatment process of heating the cornstalks to 50-80 °C may be included. Heat treatment in this temperature range may improve pulp extraction efficiency while reducing the amount of chemicals to be used. If the heat treatment is performed below 50 °C, mechanical pulping may be insufficient. Otherwise, if it is performed at higher than 80 °C, it is uneconomical.
- the heat treatment may be performed inside a conventional silo.
- Freeness(CSF) of 85- 130D a tensile strength of 1.5-3.0 kgf, a breaking length of 2.0-3.0 km and a tear strength of 17-20 g. Thus, it was confirmed to be adequate for manufacturing printing paper or other paper.
- cornstalk chips were put in a silo and pretreatment was performed at 60 °C.
- the present invention offers a process for manufacturing of the semichemical pulp of cornstalks, which are available almost infinitely without destroying forests but have not been used for pulping, into semichemical mechanical pulp using conventional mechanical pulping facilities with no special difficulties. Considering that vast forests had to be destroyed worldwide to produce paper, the present invention offers the advantage of manufacturing semichemical pulp from cornstalks while protecting the forests.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/560,651 US20070095492A1 (en) | 2005-03-17 | 2005-05-12 | Manufacturing method of semichemical mechanical pulp from cornstalk |
BRPI0504406-5A BRPI0504406A (en) | 2005-03-17 | 2005-05-12 | method of manufacturing semiquemically mechanical pulp from corn stalk |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050022304A KR100652975B1 (en) | 2005-03-17 | 2005-03-17 | Manufacturing method of semichemical mechanical pulp from cornstalk |
KR10-2005-0022304 | 2005-03-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006098531A1 true WO2006098531A1 (en) | 2006-09-21 |
Family
ID=36991865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2005/001389 WO2006098531A1 (en) | 2005-03-17 | 2005-05-12 | Manufacturing method of semichemical mechanical pulp from cornstalk |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070095492A1 (en) |
KR (1) | KR100652975B1 (en) |
CN (1) | CN1934314A (en) |
BR (1) | BRPI0504406A (en) |
WO (1) | WO2006098531A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023235965A1 (en) * | 2022-06-08 | 2023-12-14 | Red Leaf Sustainable Ip Corp. | Desilication and manufacture of low carbon intensity chemi-mechanical non-wood pulp and co-products |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101034603B1 (en) * | 2010-07-26 | 2011-05-12 | 김재철 | Method for fabricating agricultural waste particle and method for fabricating the particle |
CN106223087A (en) * | 2016-09-14 | 2016-12-14 | 黑龙江秀泉科技有限公司 | A kind of dry method pulping process and equipment |
CN108342923A (en) * | 2018-03-15 | 2018-07-31 | 中国制浆造纸研究院衢州分院 | A kind of preparation method of moso bamboo true qualities reducing rules |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920000746B1 (en) * | 1988-11-29 | 1992-01-21 | 전주제지 주식회사 | Mechanical process |
JPH0457982A (en) * | 1990-06-21 | 1992-02-25 | Kosei Hata | Collection of fiber from stem of corn, soybean or potato |
US5944953A (en) * | 1996-03-12 | 1999-08-31 | Le Centre Specialise En Pates Et Papiers (Cspp) Du College D'enseignement General Et Professionnel De Trois-Riveres | Process for simultaneous mechanical and chemical defibration of corn stalks and straw materials |
KR100324487B1 (en) * | 1999-06-05 | 2002-02-27 | 김철갑 | Preparation method for the cornstalk pulping |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1845487A (en) * | 1928-06-22 | 1932-02-16 | Cornstalk Products Company Inc | Method for the production of pulp |
US5141735A (en) * | 1990-06-18 | 1992-08-25 | Hoffman-La Roche, Inc. | Substituted amino-benzodiazepines having anitviral activity |
-
2005
- 2005-03-17 KR KR1020050022304A patent/KR100652975B1/en not_active IP Right Cessation
- 2005-05-12 BR BRPI0504406-5A patent/BRPI0504406A/en not_active IP Right Cessation
- 2005-05-12 US US10/560,651 patent/US20070095492A1/en not_active Abandoned
- 2005-05-12 CN CNA2005800006083A patent/CN1934314A/en active Pending
- 2005-05-12 WO PCT/KR2005/001389 patent/WO2006098531A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920000746B1 (en) * | 1988-11-29 | 1992-01-21 | 전주제지 주식회사 | Mechanical process |
JPH0457982A (en) * | 1990-06-21 | 1992-02-25 | Kosei Hata | Collection of fiber from stem of corn, soybean or potato |
US5944953A (en) * | 1996-03-12 | 1999-08-31 | Le Centre Specialise En Pates Et Papiers (Cspp) Du College D'enseignement General Et Professionnel De Trois-Riveres | Process for simultaneous mechanical and chemical defibration of corn stalks and straw materials |
KR100324487B1 (en) * | 1999-06-05 | 2002-02-27 | 김철갑 | Preparation method for the cornstalk pulping |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023235965A1 (en) * | 2022-06-08 | 2023-12-14 | Red Leaf Sustainable Ip Corp. | Desilication and manufacture of low carbon intensity chemi-mechanical non-wood pulp and co-products |
Also Published As
Publication number | Publication date |
---|---|
KR100652975B1 (en) | 2006-12-01 |
KR20060100624A (en) | 2006-09-21 |
US20070095492A1 (en) | 2007-05-03 |
BRPI0504406A (en) | 2006-11-21 |
CN1934314A (en) | 2007-03-21 |
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