BE445331A - - Google Patents

Info

Publication number
BE445331A
BE445331A BE445331DA BE445331A BE 445331 A BE445331 A BE 445331A BE 445331D A BE445331D A BE 445331DA BE 445331 A BE445331 A BE 445331A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE445331A publication Critical patent/BE445331A/xx

Links

Classifications

    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/40—Radicals substituted by oxygen atoms
    • C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
    • C07D307/48—Furfural
    • C07D307/50—Preparation from natural products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paper (AREA)
BE445331D 1940-03-02 1942-04-24 BE445331A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH161749D DE747454C (de) 1940-03-02 1940-03-02 Verfahren zur Herstellung von hochpolymeren Zellstoffen

Publications (1)

Publication Number Publication Date
BE445331A true BE445331A (de) 1942-05-30

Family

ID=7183518

Family Applications (1)

Application Number Title Priority Date Filing Date
BE445331D BE445331A (de) 1940-03-02 1942-04-24

Country Status (5)

Country Link
BE (1) BE445331A (de)
DE (1) DE747454C (de)
DK (1) DK63544C (de)
FR (1) FR870328A (de)
IT (1) IT596887A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967570C (de) * 1941-12-23 1957-11-21 Phrix Werke Akt Ges Verfahren zur Erzeugung eines fuer die Viskoseherstellung geeigneten Zellstoffes aus pentosanreichen Einjahrespflanzen
DE968585C (de) * 1942-01-10 1958-03-06 Phrix Werke Ag Verfahren zur Erzeugung eines fuer die Kunstfaserherstellung geeigneten Zellstoffesaus Kiefernholz
DE969452C (de) * 1942-03-20 1958-06-04 Phrix Werke Ag Verfahren zur Gewinnung von Kunstfaserzellstoffen
DE938229C (de) * 1943-05-25 1956-01-26 Phrix Werke Ag Verfahren zur Herstellung eines fuer die chemische Weiterverarbeitung geeigneten Zellstoffes durch Aufschluss mit nicht kaustifizierten Laugen
US2999783A (en) * 1957-10-05 1961-09-12 Hodogaya Chemical Co Ltd Process for simultaneous production of high alpha-pulp with furfural from latifoliate tree materials
ZA766073B (en) * 1975-10-24 1977-09-28 D Econimidis Production of pulp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE77598C (de) * E. RUDEL, Dresden-Neustadt, Königsbrückerstr. 91 Verfahren zum Aufschliefsen von Pflanzenstoffen zur Zellstoffgewinnung
DE647913C (de) * 1931-08-25 1937-07-19 Holzhydrolyse A G Verfahren zur Gewinnung von Pentosen aus stark pentosanehaltigen Pflanzenteilen
US1960812A (en) * 1931-10-22 1934-05-29 Groth Bertil Sixten Manufacture of furfur
US2026900A (en) * 1934-10-19 1936-01-07 Kodama Kenta Method of manufacturing refined pulp from straw of graminaceous plants
FR831702A (fr) * 1937-02-20 1938-09-13 Henkel & Cie Gmbh Procédé de fabrication de carton-paille avec obtention simultanée de furfurol
FR847463A (fr) * 1938-06-16 1939-10-10 Pingris & Molley Fontaine Reun Procédé de traitement des matières cellulosiques en vue de la préparation de la cellulose pure

Also Published As

Publication number Publication date
FR870328A (fr) 1942-03-10
DK63544C (da) 1945-05-28
IT596887A (de)
DE747454C (de) 1944-10-04

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