EP0287960A3 - A process for the production of a hemicellulose hydrolysate and special pulp - Google Patents

A process for the production of a hemicellulose hydrolysate and special pulp Download PDF

Info

Publication number
EP0287960A3
EP0287960A3 EP19880106006 EP88106006A EP0287960A3 EP 0287960 A3 EP0287960 A3 EP 0287960A3 EP 19880106006 EP19880106006 EP 19880106006 EP 88106006 A EP88106006 A EP 88106006A EP 0287960 A3 EP0287960 A3 EP 0287960A3
Authority
EP
European Patent Office
Prior art keywords
production
hemicellulose hydrolysate
special pulp
dissolving
pulp
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.)
Granted
Application number
EP19880106006
Other languages
German (de)
French (fr)
Other versions
EP0287960A2 (en
EP0287960B1 (en
Inventor
Panu Tikka
Nils Erik Virkola
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.)
SciTech Services Inc
Original Assignee
Suomen Sokeri Oy
SciTech Services Inc
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 Suomen Sokeri Oy, SciTech Services Inc filed Critical Suomen Sokeri Oy
Publication of EP0287960A2 publication Critical patent/EP0287960A2/en
Publication of EP0287960A3 publication Critical patent/EP0287960A3/en
Application granted granted Critical
Publication of EP0287960B1 publication Critical patent/EP0287960B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00—Glucose; Glucose-containing syrups
    • C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Amplifiers (AREA)

Abstract

The invention relates to a process for the production of a hemicellulose hydrolysate and special pulp through two steps, the first step comprising the prehydrolysis of the material and the second step the dissolving of the lignin contained in the prehydrolyzed material. According to the process the lignin dissolving is carried out by means of a neutral sulphite cooking with anthraquinone or a derivative thereof as a catalyst, the pH of the cooking liquor being initially at least 10.
EP88106006A 1987-04-21 1988-04-15 A process for the production of a hemicellulose hydrolysate and special pulp Expired - Lifetime EP0287960B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI871730A FI79564C (en) 1987-04-21 1987-04-21 FOERFARANDE FOER FRAMSTAELLNING AV HEMICELLULOSAHYDROLYSAT OCH SPECIALMASSA.
FI871730 1987-04-21

Publications (3)

Publication Number Publication Date
EP0287960A2 EP0287960A2 (en) 1988-10-26
EP0287960A3 true EP0287960A3 (en) 1991-04-17
EP0287960B1 EP0287960B1 (en) 1994-09-21

Family

ID=8524351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106006A Expired - Lifetime EP0287960B1 (en) 1987-04-21 1988-04-15 A process for the production of a hemicellulose hydrolysate and special pulp

Country Status (8)

Country Link
EP (1) EP0287960B1 (en)
AT (1) ATE111986T1 (en)
BR (1) BR8801894A (en)
CA (1) CA1295095C (en)
DE (1) DE3851565T2 (en)
ES (1) ES2062995T3 (en)
FI (1) FI79564C (en)
RU (1) RU1799408C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10064131C2 (en) * 2000-12-22 2003-03-27 Sca Hygiene Prod Gmbh Fully bleached sulfite pulp, process for its manufacture and products made from it
DE602007008591D1 (en) * 2007-11-27 2010-09-30 Innventia Ab Use of a wood hydrolyzate
FI129760B (en) 2020-07-06 2022-08-15 Amppc Finland Oy A high yield cooking method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532597A (en) * 1969-03-11 1970-10-06 Uddeholms Ab Preparation of dissolving pulps from wood by hydrolysis and alkaline sulfite digestion
DE2628971A1 (en) * 1976-06-28 1978-01-05 Waldhof Aschaffenburg Papier Cellulose and wood sugar prodn. from wood - using a washing stage after pre-hydrolysis, with controlled pH during decomposition
CA1216105A (en) * 1984-04-06 1987-01-06 C-I-L Inc. Pulping process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA773044B (en) 1976-06-02 1978-04-26 Australian Paper Manufacturers Improvements in pulping processes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532597A (en) * 1969-03-11 1970-10-06 Uddeholms Ab Preparation of dissolving pulps from wood by hydrolysis and alkaline sulfite digestion
DE2628971A1 (en) * 1976-06-28 1978-01-05 Waldhof Aschaffenburg Papier Cellulose and wood sugar prodn. from wood - using a washing stage after pre-hydrolysis, with controlled pH during decomposition
CA1216105A (en) * 1984-04-06 1987-01-06 C-I-L Inc. Pulping process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY. vol. 58, no. 7, January 1988, APPLETON US page 943 Abou-State, M.A.: "Highly reactive viscose pulp from wheat straw by alkaline sulfide-sulfite-anthraquinone pulping." *

Also Published As

Publication number Publication date
ES2062995T3 (en) 1995-01-01
DE3851565D1 (en) 1994-10-27
EP0287960A2 (en) 1988-10-26
DE3851565T2 (en) 1995-01-26
FI871730A (en) 1988-10-22
RU1799408C (en) 1993-02-28
FI79564C (en) 1990-01-10
FI871730A0 (en) 1987-04-21
FI79564B (en) 1989-09-29
CA1295095C (en) 1992-02-04
ATE111986T1 (en) 1994-10-15
BR8801894A (en) 1988-11-22
EP0287960B1 (en) 1994-09-21

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