IT1020664B - Procedimento per la rimozione di semicellulosa da semicellulosa con tenente liquori caustici in proces so di circolazione - Google Patents

Procedimento per la rimozione di semicellulosa da semicellulosa con tenente liquori caustici in proces so di circolazione

Info

Publication number
IT1020664B
IT1020664B IT69275/74A IT6927574A IT1020664B IT 1020664 B IT1020664 B IT 1020664B IT 69275/74 A IT69275/74 A IT 69275/74A IT 6927574 A IT6927574 A IT 6927574A IT 1020664 B IT1020664 B IT 1020664B
Authority
IT
Italy
Prior art keywords
semicellulose
liqueurs
removal
procedure
circulation process
Prior art date
Application number
IT69275/74A
Other languages
English (en)
Original Assignee
Keskuslaboratorio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keskuslaboratorio filed Critical Keskuslaboratorio
Application granted granted Critical
Publication of IT1020664B publication Critical patent/IT1020664B/it

Links

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)
IT69275/74A 1973-07-23 1974-07-17 Procedimento per la rimozione di semicellulosa da semicellulosa con tenente liquori caustici in proces so di circolazione IT1020664B (it)

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
IT1020664B true IT1020664B (it) 1977-12-30

Family

ID=8506932

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69275/74A IT1020664B (it) 1973-07-23 1974-07-17 Procedimento per la rimozione di semicellulosa da semicellulosa con tenente liquori caustici in proces so di circolazione

Country Status (16)

Country Link
US (1) US3935022A (it)
JP (1) JPS5082164A (it)
BR (1) BR7406081D0 (it)
CA (1) CA1032707A (it)
CH (1) CH601552A5 (it)
DD (1) DD113236A5 (it)
DE (1) DE2433235A1 (it)
FI (1) FI49438C (it)
FR (1) FR2238714B1 (it)
GB (1) GB1409586A (it)
IN (1) IN141048B (it)
IT (1) IT1020664B (it)
NL (1) NL7409374A (it)
NO (1) NO742669L (it)
PL (1) PL91400B1 (it)
SE (1) SE7409515L (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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
US7815741B2 (en) * 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US7815876B2 (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
EP3307791B1 (en) 2015-06-10 2020-08-05 Stora Enso Oyj Methods for treating lignocellulosic materials
CN116479671A (zh) * 2018-05-28 2023-07-25 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB1409586A (en) 1975-10-08
NO742669L (it) 1975-02-17
BR7406081D0 (pt) 1975-05-13
US3935022A (en) 1976-01-27
CH601552A5 (it) 1978-07-14
FI49438C (fi) 1980-12-23
FR2238714B1 (it) 1978-03-24
SE7409515L (it) 1975-01-24
DD113236A5 (it) 1975-05-20
CA1032707A (en) 1978-06-13
IN141048B (it) 1977-01-15
PL91400B1 (it) 1977-02-28
DE2433235A1 (de) 1975-02-13
FI49438B (it) 1975-02-28
NL7409374A (nl) 1975-01-27
FR2238714A1 (it) 1975-02-21
JPS5082164A (it) 1975-07-03

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