SE7609134L - Forfarande och anordning for framstellning av polysackaridetrar - Google Patents

Forfarande och anordning for framstellning av polysackaridetrar

Info

Publication number
SE7609134L
SE7609134L SE7609134A SE7609134A SE7609134L SE 7609134 L SE7609134 L SE 7609134L SE 7609134 A SE7609134 A SE 7609134A SE 7609134 A SE7609134 A SE 7609134A SE 7609134 L SE7609134 L SE 7609134L
Authority
SE
Sweden
Prior art keywords
polysaccaride
ethers
procedure
preparation
polysaccaride ethers
Prior art date
Application number
SE7609134A
Other languages
English (en)
Inventor
G Y T Liu
C P Strange
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of SE7609134L publication Critical patent/SE7609134L/sv

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/06—Rendering cellulose suitable for etherification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/08—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals with hydroxylated hydrocarbon radicals; Esters, ethers, or acetals thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
SE7609134A 1975-08-18 1976-08-16 Forfarande och anordning for framstellning av polysackaridetrar SE7609134L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/605,794 US4015067A (en) 1975-08-18 1975-08-18 Method of preparing polysaccharide ethers and apparatus

Publications (1)

Publication Number Publication Date
SE7609134L true SE7609134L (sv) 1977-02-19

Family

ID=24425238

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7609134A SE7609134L (sv) 1975-08-18 1976-08-16 Forfarande och anordning for framstellning av polysackaridetrar

Country Status (8)

Country Link
US (1) US4015067A (sv)
JP (1) JPS5225887A (sv)
BE (1) BE845296A (sv)
BR (1) BR7605385A (sv)
CA (1) CA1067071A (sv)
DE (1) DE2636935A1 (sv)
NL (1) NL7609047A (sv)
SE (1) SE7609134L (sv)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924330A1 (de) * 1979-06-15 1980-12-18 Hoechst Ag Kontinuierliches verfahren und vorrichtung zur herstellung von wasserloeslicher hydroxyalkylcellulose oder deren mischethern
DE2929011A1 (de) * 1979-07-18 1981-02-12 Henkel Kgaa Herstellung von alkylcellulose nach kontinuierlicher verfahrensweise
DE3140813A1 (de) * 1981-10-14 1983-04-21 Wolff Walsrode Ag, 3030 Walsrode Verfahren zur herstellung von celluloseethern
US4384113A (en) * 1982-03-23 1983-05-17 The Dow Chemical Company Stabilization of alkali polysaccharides
US4419510A (en) * 1982-07-30 1983-12-06 The Dow Chemical Company Method for controlling cellulose etherification reaction
US4452978A (en) * 1982-11-19 1984-06-05 A. E. Staley Manufacturing Company Granular starch ethers having reduced pasting temperatures
US4477657A (en) * 1983-07-08 1984-10-16 The Dow Chemical Company Process for preparing hydroxyalkylcellulose ethers
DE3331997A1 (de) * 1983-09-05 1985-03-21 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von waessrigen destillationsrueckstaenden waehrend der aufbereitung von bei der herstellung von celluloseethern anfallenden fluessigkeiten
US4474951A (en) * 1983-09-27 1984-10-02 The Dow Chemical Company Hydroxyalkylation of polysaccharides
DE3417952A1 (de) * 1984-05-15 1985-11-21 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von wasserloeslichen cellulosemischethern
US4705809A (en) * 1986-07-07 1987-11-10 The Dow Chemical Company Process for preparing a porous polymer article
US4845206A (en) * 1987-05-21 1989-07-04 The Dow Chemical Company Production of cellulose ethers using a premix of alkali and etherifying agent
JP2722830B2 (ja) * 1991-03-13 1998-03-09 日産自動車株式会社 内燃機関の排気装置
US6261218B1 (en) * 1998-12-01 2001-07-17 The Dow Chemical Company Process and apparatus for making low molecular weight cellulose ethers
EP1293515B1 (de) * 2001-09-14 2007-04-11 Wolff Cellulosics GmbH & Co.KG Verfahren und Vorrichtung zur industriellen Herstellung von Methylhydroxyalkylcellulose
DE10234426A1 (de) * 2001-09-14 2003-04-03 Wolff Cellulosics Gmbh & Co Kg Verfahren und Vorrichtung zur industriellen Herstellung von Methylhydroxyalkylcellulose
US6881252B2 (en) 2003-09-23 2005-04-19 Corn Products International, Inc. Fiber-based product
EP2428523B1 (en) 2010-09-14 2017-12-06 Shin-Etsu Chemical Co., Ltd. Method for producing low-substituted hydroxypropylcellulose
EP2998340B1 (en) 2014-09-22 2019-07-17 Shin-Etsu Chemical Co., Ltd. Method for continuously producing cellulose ether

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA632046A (en) * 1961-12-05 E.I. Du Pont De Nemours And Company Alkali metal salt of carboxymethyl cellulose manufacture
US2476331A (en) * 1945-11-15 1949-07-19 Dow Chemical Co Method of making methyl carboxymethyl cellulose
US3278520A (en) * 1963-02-08 1966-10-11 Hercules Inc Hydroxypropyl cellulose and process
US3351583A (en) * 1964-07-06 1967-11-07 Hercules Inc Preparation of hydroxypropyl cellulose
DE1468048B2 (de) * 1964-11-28 1975-02-20 Henkel & Cie Gmbh, 4000 Duesseldorf Verfahren zur Herstellung von Hydroxypropyl-methylcellulosen
DE1543114B2 (de) * 1965-05-06 1977-04-28 Hoechst Ag, 6000 Frankfurt Verwendung zweiwelliger schneckenpressen bei der herstellung von alkalicellulose und celluloseaethern
US3544556A (en) * 1965-12-30 1970-12-01 Kalle Ag Process for the preparation of cellulose ethers
US3915959A (en) * 1974-03-15 1975-10-28 Crown Zellerbach Corp Activated alkali cellulose and derivatives formed therefrom and a process for making the same

Also Published As

Publication number Publication date
NL7609047A (nl) 1977-02-22
DE2636935A1 (de) 1977-03-03
US4015067A (en) 1977-03-29
JPS5225887A (en) 1977-02-26
BE845296A (fr) 1977-02-18
BR7605385A (pt) 1977-08-16
CA1067071A (en) 1979-11-27

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