PT69751A - Process for the production of celulose from lignocellulosematerials - Google Patents
Process for the production of celulose from lignocellulosematerialsInfo
- 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
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.
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)
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)
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 |
-
1978
- 1978-06-21 DE DE19782827111 patent/DE2827111A1/en not_active Withdrawn
-
1979
- 1979-05-21 IN IN355/DEL/79A patent/IN151933B/en unknown
- 1979-06-11 PT PT69751A patent/PT69751A/en unknown
- 1979-06-11 DE DE7979101858T patent/DE2965428D1/en not_active Expired
- 1979-06-11 AT AT79101858T patent/ATE3449T1/en not_active IP Right Cessation
- 1979-06-11 EP EP79101858A patent/EP0006201B1/en not_active Expired
- 1979-06-13 NO NO791974A patent/NO791974L/en unknown
- 1979-06-18 NZ NZ190753A patent/NZ190753A/en unknown
- 1979-06-19 FI FI791949A patent/FI66442C/en not_active IP Right Cessation
- 1979-06-19 PH PH22668A patent/PH15789A/en unknown
- 1979-06-19 TR TR20455A patent/TR20455A/en unknown
- 1979-06-19 CA CA000330073A patent/CA1140706A/en not_active Expired
- 1979-06-19 JP JP7637479A patent/JPS556585A/en active Pending
- 1979-06-20 AU AU48210/79A patent/AU537690B2/en not_active Ceased
- 1979-06-20 ZA ZA793064A patent/ZA793064B/en unknown
- 1979-06-20 ES ES481720A patent/ES481720A1/en not_active Expired
- 1979-06-20 BR BR7903896A patent/BR7903896A/en unknown
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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