PT69751A - Process for the production of celulose from lignocellulosematerials - Google Patents

Process for the production of celulose from lignocellulosematerials

Info

Publication number
PT69751A
PT69751A PT69751A PT6975179A PT69751A PT 69751 A PT69751 A PT 69751A PT 69751 A PT69751 A PT 69751A PT 6975179 A PT6975179 A PT 6975179A PT 69751 A PT69751 A PT 69751A
Authority
PT
Portugal
Prior art keywords
lignocellulosematerials
celulose
production
weight
surfactants
Prior art date
Application number
PT69751A
Other languages
Portuguese (pt)
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 PT69751A publication Critical patent/PT69751A/en

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

Abstract

1. Agent for use in obtaining wood pulp, characterised in that it consists of a pulverulent mixture which contains 30 to 98% by weight of one (or more) organic, cyclic compound(s) containing keto and/or hydroxyl groups and which contains 2 to 70% by weight of one or more surfactants.
PT69751A 1978-06-21 1979-06-11 Process for the production of celulose from lignocellulosematerials PT69751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782827111 DE2827111A1 (en) 1978-06-21 1978-06-21 AGENTS FOR USE IN CELL PROCESSING

Publications (1)

Publication Number Publication Date
PT69751A true PT69751A (en) 1979-07-01

Family

ID=6042304

Family Applications (1)

Application Number Title Priority Date Filing Date
PT69751A PT69751A (en) 1978-06-21 1979-06-11 Process for the production of celulose from lignocellulosematerials

Country Status (16)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925545A1 (en) * 1979-06-25 1981-01-29 Bayer Ag METHOD FOR PRODUCING A MEDIUM CONTAINING ORGANIC, CYCLIC, KETO- AND / OR HYDROGROUPES AND COMPOSITIONS AND SURFACES, AND METHOD FOR PRODUCING CELLS BY USING THIS MEDIUM
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 (en) * 1984-10-18 1986-05-15 川崎化成工業株式会社 High concentrated pulp digestion aid aqueous solution
CA1321449C (en) * 1988-03-02 1993-08-24 Cheng-I Chen Process for producing kraft pulp for paper
DE3905311C2 (en) * 1989-02-21 1994-09-29 Bayer Ag Process for the preparation of anthraquinone / surfactant mixtures and use of these mixtures
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 (en) * 1994-04-26 1995-11-02 Harima Chemicals, Inc. Pulp digestion aid
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
WO2016004481A1 (en) * 2014-07-10 2016-01-14 Leaf Sciences Pty Ltd Methods for treating lignocellulosic material
CA2953715A1 (en) 2014-07-10 2016-01-14 Leaf Sciences Pty Ltd Methods for hydrolysing lignocellulosic material
JP7165323B2 (en) * 2018-07-04 2022-11-04 株式会社片山化学工業研究所 Pulp cooking aid and method for producing chemical pulp using the same
US20240175205A1 (en) * 2022-11-29 2024-05-30 Solenis Technologies, L.P. Method for digesting lignocellulosic material

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 (en) * 1947-07-09 1949-09-30 Application of wetting agents in the manufacture of pulp
SE384883B (en) * 1974-09-06 1976-05-24 Kopparfors Ab WAY TO INCREASE THE CELLULOSE YIELD WHEN SULPHITE BOILING OF WOOD
FI783563A (en) * 1977-12-01 1979-06-02 Sandoz Ag FOERBAETTRINGAR I OCH ANGAOENDE ORGANISKA FOERENINGAR
DE2816473A1 (en) * 1978-04-15 1979-10-25 Bayer Ag DISPERSION FOR USE IN CELL PROCESSING

Also Published As

Publication number Publication date
BR7903896A (en) 1980-02-20
PH15789A (en) 1983-03-25
IN151933B (en) 1983-09-03
DE2965428D1 (en) 1983-07-07
AU4821079A (en) 1980-01-03
FI791949A (en) 1979-12-22
ZA793064B (en) 1980-08-27
NZ190753A (en) 1981-07-13
TR20455A (en) 1981-07-14
AU537690B2 (en) 1984-07-05
ES481720A1 (en) 1980-02-16
EP0006201A1 (en) 1980-01-09
CA1140706A (en) 1983-02-08
JPS556585A (en) 1980-01-18
NO791974L (en) 1979-12-27
FI66442B (en) 1984-06-29
DE2827111A1 (en) 1980-01-10
FI66442C (en) 1984-10-10
ATE3449T1 (en) 1983-06-15
EP0006201B1 (en) 1983-05-18

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