FI871730A - FOERFARANDE FOER FRAMSTAELLNING AV HEMICELLULOSAHYDROLYSAT OCH SPECIALMASSA. - Google Patents

FOERFARANDE FOER FRAMSTAELLNING AV HEMICELLULOSAHYDROLYSAT OCH SPECIALMASSA. Download PDF

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Publication number
FI871730A
FI871730A FI871730A FI871730A FI871730A FI 871730 A FI871730 A FI 871730A FI 871730 A FI871730 A FI 871730A FI 871730 A FI871730 A FI 871730A FI 871730 A FI871730 A FI 871730A
Authority
FI
Finland
Prior art keywords
specialmassa
hemicellulosahydrolysat
och
foerfarande foer
foer framstaellning
Prior art date
Application number
FI871730A
Other languages
Finnish (fi)
Other versions
FI79564C (en
FI79564B (en
FI871730A0 (en
Inventor
Panu Olavi Tikka
Nils-Erik Virkola
Original Assignee
Suomen Sokeri Oy
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 filed Critical Suomen Sokeri Oy
Publication of FI871730A0 publication Critical patent/FI871730A0/en
Priority to FI871730A priority Critical patent/FI79564C/en
Priority to AT88106006T priority patent/ATE111986T1/en
Priority to CA000564311A priority patent/CA1295095C/en
Priority to EP88106006A priority patent/EP0287960B1/en
Priority to DE3851565T priority patent/DE3851565T2/en
Priority to SU884355611A priority patent/RU1799408C/en
Priority to BR8801894A priority patent/BR8801894A/en
Priority to ES88106006T priority patent/ES2062995T3/en
Priority to ZA884037A priority patent/ZA884037B/en
Publication of FI871730A publication Critical patent/FI871730A/en
Application granted granted Critical
Publication of FI79564B publication Critical patent/FI79564B/en
Publication of FI79564C publication Critical patent/FI79564C/en
Priority to US07/535,287 priority patent/US5139617A/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
    • 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.
FI871730A 1987-04-21 1987-04-21 FOERFARANDE FOER FRAMSTAELLNING AV HEMICELLULOSAHYDROLYSAT OCH SPECIALMASSA. FI79564C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI871730A FI79564C (en) 1987-04-21 1987-04-21 FOERFARANDE FOER FRAMSTAELLNING AV HEMICELLULOSAHYDROLYSAT OCH SPECIALMASSA.
CA000564311A CA1295095C (en) 1987-04-21 1988-04-15 Process for the production of a hemicellulose hydrolysate and special pulp
AT88106006T ATE111986T1 (en) 1987-04-21 1988-04-15 PROCESS FOR THE PRODUCTION OF HEMICELLULOSIC HYDROLYSATE AND A SPECIAL PULP.
EP88106006A EP0287960B1 (en) 1987-04-21 1988-04-15 A process for the production of a hemicellulose hydrolysate and special pulp
DE3851565T DE3851565T2 (en) 1987-04-21 1988-04-15 Process for the production of hemicellulose hydrolyzate and a special pulp.
SU884355611A RU1799408C (en) 1987-04-21 1988-04-20 Method of wood raw materials processing
BR8801894A BR8801894A (en) 1987-04-21 1988-04-21 PROCESS FOR THE PRODUCTION OF A HEMICELLULOSE AND SPECIAL PULP HYDROLYZATE
ES88106006T ES2062995T3 (en) 1987-04-21 1988-05-11 A PRODUCTION PROCESS OF A HEMICELLULOSE HYDROLYZATE AND A SPECIAL PASTA.
ZA884037A ZA884037B (en) 1987-04-21 1988-06-07 A process for the production of a hemicellulose hydrolysate and special pulp
US07/535,287 US5139617A (en) 1987-04-21 1990-06-08 Process for the production of a hemicellulose hydrolysate and special high alpha cellulose pulp

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 (4)

Publication Number Publication Date
FI871730A0 FI871730A0 (en) 1987-04-21
FI871730A true FI871730A (en) 1988-10-22
FI79564B FI79564B (en) 1989-09-29
FI79564C FI79564C (en) 1990-01-10

Family

ID=8524351

Family Applications (1)

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

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

Family Cites Families (4)

* 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
ZA773044B (en) * 1976-06-02 1978-04-26 Australian Paper Manufacturers Improvements in pulping processes
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

Also Published As

Publication number Publication date
ES2062995T3 (en) 1995-01-01
FI79564C (en) 1990-01-10
EP0287960A3 (en) 1991-04-17
RU1799408C (en) 1993-02-28
EP0287960B1 (en) 1994-09-21
CA1295095C (en) 1992-02-04
EP0287960A2 (en) 1988-10-26
DE3851565T2 (en) 1995-01-26
ATE111986T1 (en) 1994-10-15
DE3851565D1 (en) 1994-10-27
FI79564B (en) 1989-09-29
BR8801894A (en) 1988-11-22
FI871730A0 (en) 1987-04-21

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MM Patent lapsed

Owner name: SCITECH SERVICES INC.