NO742669L - - Google Patents
Info
- Publication number
- NO742669L NO742669L NO742669A NO742669A NO742669L NO 742669 L NO742669 L NO 742669L NO 742669 A NO742669 A NO 742669A NO 742669 A NO742669 A NO 742669A NO 742669 L NO742669 L NO 742669L
- Authority
- NO
- Norway
- Prior art keywords
- hemicellulose
- solution
- lye
- mercerization
- viscose
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 128
- 229920002488 Hemicellulose Polymers 0.000 claims description 88
- 238000000034 method Methods 0.000 claims description 54
- 239000003513 alkali Substances 0.000 claims description 45
- 238000005517 mercerization Methods 0.000 claims description 38
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 36
- 229920000297 Rayon Polymers 0.000 claims description 24
- 229920002678 cellulose Polymers 0.000 claims description 13
- 239000001913 cellulose Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 12
- 238000005119 centrifugation Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011111 cardboard Substances 0.000 claims description 5
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 150000002894 organic compounds Chemical class 0.000 claims description 5
- 239000012991 xanthate Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 4
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 239000011087 paperboard Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000008394 flocculating agent Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- 239000002244 precipitate Substances 0.000 description 13
- 239000012452 mother liquor Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- -1 aliphatic alcohols Chemical class 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0057—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI2313/73A FI49438C (fi) | 1973-07-23 | 1973-07-23 | Foerfarande foer avlaegsnande av hemicellulosa ur hemicellulosahaltiga alkaliloesningar i processcirkulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO742669L true NO742669L (ja) | 1975-02-17 |
Family
ID=8506932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO742669A NO742669L (ja) | 1973-07-23 | 1974-07-22 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3935022A (ja) |
| JP (1) | JPS5082164A (ja) |
| BR (1) | BR7406081D0 (ja) |
| CA (1) | CA1032707A (ja) |
| CH (1) | CH601552A5 (ja) |
| DD (1) | DD113236A5 (ja) |
| DE (1) | DE2433235A1 (ja) |
| FI (1) | FI49438C (ja) |
| FR (1) | FR2238714B1 (ja) |
| GB (1) | GB1409586A (ja) |
| IN (1) | IN141048B (ja) |
| IT (1) | IT1020664B (ja) |
| NL (1) | NL7409374A (ja) |
| NO (1) | NO742669L (ja) |
| PL (1) | PL91400B1 (ja) |
| SE (1) | SE7409515L (ja) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278790A (en) * | 1978-07-31 | 1981-07-14 | Hopkins Agricultural Chemical Co. | Novel cellulose solutions |
| US4395543A (en) * | 1981-08-12 | 1983-07-26 | Massachusetts Institute Of Technology | Selective solvent extraction of cellulosic material |
| FI69854C (fi) * | 1984-04-02 | 1986-05-26 | Enso Gutzeit Oy | Foerfarande foer foervaratagning av loesliga kolhydrater i trae |
| US7101996B2 (en) * | 2003-09-23 | 2006-09-05 | Corn Products International, Inc. | Process for preparing purified fractions of hemicellulose and cellulose-hemicellulose complexes from alkali treated fiber and products made by the process |
| AT413548B (de) * | 2004-06-02 | 2006-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines chemiezellstoffes und seine verwendung |
| DE102004060283A1 (de) * | 2004-12-15 | 2006-06-29 | Wolff Cellulosics Gmbh & Co. Kg | Verfahren zur Gewinnung von Hemicellulosen aus lignocellulosischem Material |
| US7815876B2 (en) * | 2006-11-03 | 2010-10-19 | Olson David A | Reactor pump for catalyzed hydrolytic splitting of cellulose |
| US7815741B2 (en) * | 2006-11-03 | 2010-10-19 | Olson David A | Reactor pump for catalyzed hydrolytic splitting of cellulose |
| US7699958B2 (en) * | 2006-11-27 | 2010-04-20 | Ut-Battelle, Llc | Method for improving separation of carbohydrates from wood pulping and wood or biomass hydrolysis liquors |
| FI126512B (fi) * | 2011-03-09 | 2017-01-13 | Nanorefix Oy | Menetelmä ligniinin erottamiseksi kasvimateriaalista ja saatava tuote |
| GB2501732A (en) * | 2012-05-02 | 2013-11-06 | Innovia Films Ltd | Improved steeping conditions for manufacture of viscose |
| US10927497B2 (en) * | 2014-06-27 | 2021-02-23 | Inventure Renewables Inc. | Methods for the production of high alpha-cellulose pulp |
| FI125891B (en) * | 2014-08-14 | 2016-03-31 | Scitech Service Oy | Process for the treatment of cellulose and alkali solutions obtained from the treatment of cellulose |
| CN105525525A (zh) * | 2014-10-24 | 2016-04-27 | 上海凯鑫分离技术有限公司 | 化纤浆纤维素碱压榨液的处理回收工艺 |
| US10899850B2 (en) | 2015-06-10 | 2021-01-26 | Stora Enso Oyj | Methods for treating lignocellulosic materials |
| CN116516707A (zh) * | 2018-05-28 | 2023-08-01 | 皮尔森生物工程技术(北京)有限公司 | 用于从植物材料的有机酸预处理回收产物的有效方法和组合物 |
| CN114014957A (zh) * | 2021-11-30 | 2022-02-08 | 上海昶法新材料有限公司 | 一种从废纸中提取半纤维素的方法 |
| CN114044836A (zh) * | 2021-11-30 | 2022-02-15 | 上海昶法新材料有限公司 | 一种从化学浆中提取半纤维素的方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2362217A (en) * | 1943-01-13 | 1944-11-07 | Rayonier Inc | Production of cellulosic products |
| US2686132A (en) * | 1950-07-14 | 1954-08-10 | Rayonier Inc | Improved refined wood pulp and a method of improving it |
| US2859210A (en) * | 1956-12-10 | 1958-11-04 | Stewart E Seaman | Method of producing alkali cellulose |
| US3728330A (en) * | 1971-06-02 | 1973-04-17 | B Nizovsky | Process for manufacturing cellulose xanthate and viscose prepared from said cellulose xanthate |
-
1973
- 1973-07-23 FI FI2313/73A patent/FI49438C/fi active
- 1973-08-02 GB GB3680573A patent/GB1409586A/en not_active Expired
-
1974
- 1974-04-26 US US05/464,304 patent/US3935022A/en not_active Expired - Lifetime
- 1974-07-11 DE DE2433235A patent/DE2433235A1/de active Pending
- 1974-07-11 NL NL7409374A patent/NL7409374A/xx unknown
- 1974-07-11 IN IN1559/CAL/1974A patent/IN141048B/en unknown
- 1974-07-11 CH CH955674A patent/CH601552A5/xx not_active IP Right Cessation
- 1974-07-13 DD DD179991A patent/DD113236A5/xx unknown
- 1974-07-17 IT IT69275/74A patent/IT1020664B/it active
- 1974-07-18 CA CA205,019A patent/CA1032707A/en not_active Expired
- 1974-07-22 JP JP49084029A patent/JPS5082164A/ja active Pending
- 1974-07-22 SE SE7409515A patent/SE7409515L/xx unknown
- 1974-07-22 NO NO742669A patent/NO742669L/no unknown
- 1974-07-23 FR FR7425518A patent/FR2238714B1/fr not_active Expired
- 1974-07-24 BR BR6081/74A patent/BR7406081D0/pt unknown
- 1974-07-25 PL PL1974172933A patent/PL91400B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DD113236A5 (ja) | 1975-05-20 |
| US3935022A (en) | 1976-01-27 |
| JPS5082164A (ja) | 1975-07-03 |
| FR2238714B1 (ja) | 1978-03-24 |
| FI49438B (ja) | 1975-02-28 |
| BR7406081D0 (pt) | 1975-05-13 |
| IT1020664B (it) | 1977-12-30 |
| DE2433235A1 (de) | 1975-02-13 |
| GB1409586A (en) | 1975-10-08 |
| CH601552A5 (ja) | 1978-07-14 |
| FI49438C (fi) | 1980-12-23 |
| SE7409515L (ja) | 1975-01-24 |
| CA1032707A (en) | 1978-06-13 |
| IN141048B (ja) | 1977-01-15 |
| NL7409374A (nl) | 1975-01-27 |
| PL91400B1 (ja) | 1977-02-28 |
| FR2238714A1 (ja) | 1975-02-21 |
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