BR7406081D0 - Processo para extracao de hemicelulose das solucoes alcalinas - Google Patents
Processo para extracao de hemicelulose das solucoes alcalinasInfo
- Publication number
- BR7406081D0 BR7406081D0 BR6081/74A BR608174A BR7406081D0 BR 7406081 D0 BR7406081 D0 BR 7406081D0 BR 6081/74 A BR6081/74 A BR 6081/74A BR 608174 A BR608174 A BR 608174A BR 7406081 D0 BR7406081 D0 BR 7406081D0
- Authority
- BR
- Brazil
- Prior art keywords
- hemicellulosis
- extraction
- alkaline solutions
- alkaline
- solutions
- Prior art date
Links
- 239000012670 alkaline solution Substances 0.000 title 1
- 238000000605 extraction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 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)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (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 |
|---|---|
| BR7406081D0 true BR7406081D0 (pt) | 1975-05-13 |
Family
ID=8506932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR6081/74A BR7406081D0 (pt) | 1973-07-23 | 1974-07-24 | Processo para extracao de hemicelulose das solucoes alcalinas |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3935022A (pt) |
| JP (1) | JPS5082164A (pt) |
| BR (1) | BR7406081D0 (pt) |
| CA (1) | CA1032707A (pt) |
| CH (1) | CH601552A5 (pt) |
| DD (1) | DD113236A5 (pt) |
| DE (1) | DE2433235A1 (pt) |
| FI (1) | FI49438C (pt) |
| FR (1) | FR2238714B1 (pt) |
| GB (1) | GB1409586A (pt) |
| IN (1) | IN141048B (pt) |
| IT (1) | IT1020664B (pt) |
| NL (1) | NL7409374A (pt) |
| NO (1) | NO742669L (pt) |
| PL (1) | PL91400B1 (pt) |
| SE (1) | SE7409515L (pt) |
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 |
| CN105745377B (zh) * | 2014-06-27 | 2019-07-30 | 因温特国际有限公司 | 生产高α-纤维素纸浆的方法 |
| 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 |
| MX2020012737A (es) * | 2018-05-28 | 2021-05-14 | Pierson Capital Environmental Beijing Ltd | Metodos y composiciones eficientes para la recuperacion de productos a partir de un pretratamiento de materiales vegetales con acidos organicos. |
| 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 |
| 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 |
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 IN IN1559/CAL/1974A patent/IN141048B/en unknown
- 1974-07-11 NL NL7409374A patent/NL7409374A/xx 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 SE SE7409515A patent/SE7409515L/xx unknown
- 1974-07-22 NO NO742669A patent/NO742669L/no unknown
- 1974-07-22 JP JP49084029A patent/JPS5082164A/ja active Pending
- 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 |
|---|---|
| JPS5082164A (pt) | 1975-07-03 |
| DE2433235A1 (de) | 1975-02-13 |
| GB1409586A (en) | 1975-10-08 |
| US3935022A (en) | 1976-01-27 |
| NO742669L (pt) | 1975-02-17 |
| FI49438B (pt) | 1975-02-28 |
| FI49438C (fi) | 1980-12-23 |
| FR2238714A1 (pt) | 1975-02-21 |
| IN141048B (pt) | 1977-01-15 |
| NL7409374A (nl) | 1975-01-27 |
| SE7409515L (pt) | 1975-01-24 |
| PL91400B1 (pt) | 1977-02-28 |
| DD113236A5 (pt) | 1975-05-20 |
| CA1032707A (en) | 1978-06-13 |
| CH601552A5 (pt) | 1978-07-14 |
| IT1020664B (it) | 1977-12-30 |
| FR2238714B1 (pt) | 1978-03-24 |
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