ES481720A1 - Procedimiento para la obtencion de celulosa. - Google Patents

Procedimiento para la obtencion de celulosa.

Info

Publication number
ES481720A1
ES481720A1 ES481720A ES481720A ES481720A1 ES 481720 A1 ES481720 A1 ES 481720A1 ES 481720 A ES481720 A ES 481720A ES 481720 A ES481720 A ES 481720A ES 481720 A1 ES481720 A1 ES 481720A1
Authority
ES
Spain
Prior art keywords
cellulose
production
agent usable
weight
agent
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES481720A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of ES481720A1 publication Critical patent/ES481720A1/es
Expired legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Confectionery (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Procedimiento para la obtención de celulosa, a partir de materiales de lignocelulosa en presencia de compuestos orgánicos, cíclicos, conteniendo grupos ceto y/o hidroxi, caracterizado porque la deslignificación se efectúa en presencia de compuestos orgánicos, cíclicos, conteniendo grupos ceto y/o hidroxi que se emplean en forma de un medio que contiene los compuestos orgánicos cíclicos, conteniendo grupos ceto y/o hidroxi, en forma finamente repartida y agentes tensioactivos.
ES481720A 1978-06-21 1979-06-20 Procedimiento para la obtencion de celulosa. Expired ES481720A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782827111 DE2827111A1 (de) 1978-06-21 1978-06-21 Mittel zur verwendung bei der zellstoffgewinnung

Publications (1)

Publication Number Publication Date
ES481720A1 true ES481720A1 (es) 1980-02-16

Family

ID=6042304

Family Applications (1)

Application Number Title Priority Date Filing Date
ES481720A Expired ES481720A1 (es) 1978-06-21 1979-06-20 Procedimiento para la obtencion de celulosa.

Country Status (16)

Country Link
EP (1) EP0006201B1 (es)
JP (1) JPS556585A (es)
AT (1) ATE3449T1 (es)
AU (1) AU537690B2 (es)
BR (1) BR7903896A (es)
CA (1) CA1140706A (es)
DE (2) DE2827111A1 (es)
ES (1) ES481720A1 (es)
FI (1) FI66442C (es)
IN (1) IN151933B (es)
NO (1) NO791974L (es)
NZ (1) NZ190753A (es)
PH (1) PH15789A (es)
PT (1) PT69751A (es)
TR (1) TR20455A (es)
ZA (1) ZA793064B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925545A1 (de) * 1979-06-25 1981-01-29 Bayer Ag Verfahren zur herstellung eines mittels, das organische, cyclische, keto- und/oder hydrogruppen enthaltende verbindungen und tenside enthaelt, sowie verfahren zur zellstoffgewinnung unter verwendung dieses mittels
US4295928A (en) * 1980-08-07 1981-10-20 Nalco Chemical Company Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching
JPS57177080A (en) * 1981-04-24 1982-10-30 Kawasaki Kasei Chem Ltd Preparation of composition for digestion assistant
JPS6197492A (ja) * 1984-10-18 1986-05-15 川崎化成工業株式会社 高濃度パルプ蒸解助剤水溶液
CA1321449C (en) * 1988-03-02 1993-08-24 Cheng-I Chen Process for producing kraft pulp for paper
DE3905311C2 (de) * 1989-02-21 1994-09-29 Bayer Ag Verfahren zur Herstellung von Anthrachinon/Tensid-Gemischen und Verwendung dieser Gemische
AU626407B2 (en) * 1989-05-19 1992-07-30 Betz International, Inc. Process for producing kraft pulp for paper
CA2111921A1 (en) * 1992-12-21 1994-06-22 Kenji Kumagai Formulated composition of pulp digesting assistant agent
WO1995029288A1 (fr) * 1994-04-26 1995-11-02 Harima Chemicals, Inc. Adjuvant pour lessivage des pulpes
US6346536B1 (en) 1997-09-03 2002-02-12 Guilford Pharmaceuticals Inc. Poly(ADP-ribose) polymerase inhibitors and method for treating neural or cardiovascular tissue damage using the same
EP3167112B1 (en) 2014-07-10 2021-05-26 Leaf Sciences Pty Ltd Methods for hydrolysing lignocellulosic material
AU2015286229B2 (en) * 2014-07-10 2018-11-08 Leaf Sciences Pty Ltd Methods for treating lignocellulosic material
JP7165323B2 (ja) * 2018-07-04 2022-11-04 株式会社片山化学工業研究所 パルプ蒸解助剤、及びそれを用いた化学パルプの製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049567A (en) * 1934-06-05 1936-08-04 Du Pont Manufacture of paper pulp
FR950573A (fr) * 1947-07-09 1949-09-30 Application de mouillants à la fabrication des pâtes à papier
SE384883B (sv) * 1974-09-06 1976-05-24 Kopparfors Ab Sett att oka cellulosautbytet vid sulfitkokning av ved
FI783563A (fi) * 1977-12-01 1979-06-02 Sandoz Ag Foerbaettringar i och angaoende organiska foereningar
DE2816473A1 (de) * 1978-04-15 1979-10-25 Bayer Ag Dispersion zur verwendung bei der zellstoffgewinnung

Also Published As

Publication number Publication date
JPS556585A (en) 1980-01-18
DE2965428D1 (en) 1983-07-07
PH15789A (en) 1983-03-25
FI66442C (fi) 1984-10-10
NO791974L (no) 1979-12-27
FI791949A (fi) 1979-12-22
IN151933B (es) 1983-09-03
AU4821079A (en) 1980-01-03
AU537690B2 (en) 1984-07-05
NZ190753A (en) 1981-07-13
BR7903896A (pt) 1980-02-20
PT69751A (en) 1979-07-01
ZA793064B (en) 1980-08-27
ATE3449T1 (de) 1983-06-15
TR20455A (tr) 1981-07-14
DE2827111A1 (de) 1980-01-10
FI66442B (fi) 1984-06-29
EP0006201A1 (de) 1980-01-09
CA1140706A (en) 1983-02-08
EP0006201B1 (de) 1983-05-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991007