ATE1914T1 - METHOD AND DEVICE FOR THE CONTINUOUS DIGESTING OF PLANT FIBER MATERIAL. - Google Patents

METHOD AND DEVICE FOR THE CONTINUOUS DIGESTING OF PLANT FIBER MATERIAL.

Info

Publication number
ATE1914T1
ATE1914T1 AT79105195T AT79105195T ATE1914T1 AT E1914 T1 ATE1914 T1 AT E1914T1 AT 79105195 T AT79105195 T AT 79105195T AT 79105195 T AT79105195 T AT 79105195T AT E1914 T1 ATE1914 T1 AT E1914T1
Authority
AT
Austria
Prior art keywords
reactor
fibre material
plant fibre
organic solvent
conducted
Prior art date
Application number
AT79105195T
Other languages
German (de)
Inventor
Manfred Dr. Baumeister
Eugen Edel
Original Assignee
Md-Papierfabriken Heinrich Nicolaus Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6057775&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE1914(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Md-Papierfabriken Heinrich Nicolaus Gmbh filed Critical Md-Papierfabriken Heinrich Nicolaus Gmbh
Application granted granted Critical
Publication of ATE1914T1 publication Critical patent/ATE1914T1/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
    • D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment

Abstract

1. A process for the continuous digestion of plant fibre material, wherein the plant fibre material is treated countercurrently with an organic solvent and wherein the plant fibre material is introduced at the top of a reactor by means of an in-feeding device, is conducted by the latter in a downward direction and cellulose is produced at the bottom of the reactor, organic solvent is conducted upwardly in countercurrent to the plant fibre material and is withdrawn at the top of the reactor, and the laden extraction liquor is separated into its essential components of lignin, hemicellulose and solvent, characterized in that the plant fibre material is impregnated in an impregnating device with organic solvent, the impregnated plant fibre material is positively conducted downwardly through the reactor, organic solvent at a temperature of between 130 and 210 degrees C is introduced as an extraction liquor into the centre of the reactor and at the bottom of the reactor water is fed in as a wash liquor, conducted upwardly in countercurrent to the plant fibre material and is withdrawn at the centre of the reactor.
AT79105195T 1978-12-20 1979-12-14 METHOD AND DEVICE FOR THE CONTINUOUS DIGESTING OF PLANT FIBER MATERIAL. ATE1914T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782855052 DE2855052A1 (en) 1978-12-20 1978-12-20 METHOD AND DEVICE FOR CONTINUOUSLY UNLOCKING PLANT FIBER MATERIAL
EP79105195A EP0012960B1 (en) 1978-12-20 1979-12-14 Process and apparatus for the continuous cooking of fibrous plant material

Publications (1)

Publication Number Publication Date
ATE1914T1 true ATE1914T1 (en) 1982-12-15

Family

ID=6057775

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79105195T ATE1914T1 (en) 1978-12-20 1979-12-14 METHOD AND DEVICE FOR THE CONTINUOUS DIGESTING OF PLANT FIBER MATERIAL.

Country Status (7)

Country Link
EP (1) EP0012960B1 (en)
AT (1) ATE1914T1 (en)
BR (1) BR7908189A (en)
CA (1) CA1111694A (en)
DE (2) DE2855052A1 (en)
FI (1) FI69130C (en)
PL (1) PL220500A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT373303B (en) * 1981-08-06 1984-01-10 Chemiefaser Lenzing Ag METHOD FOR THE PRODUCTION OF LOW-LEVEL CELLS
AT373932B (en) * 1981-11-12 1984-03-12 Chemiefaser Lenzing Ag METHOD FOR RECONSTRUCTING USED DIGESTIVE FLUID FLOWING GEAR, AND PLANTS FOR IMPLEMENTING THIS METHOD
DE3212767A1 (en) * 1982-04-06 1983-10-06 Nicolaus Md Verwaltungsges METHOD AND REACTOR FOR CONTINUOUSLY UNLOCKING PLANT FIBER MATERIAL
DE3339449A1 (en) * 1983-10-31 1985-05-09 MD Verwaltungsgesellschaft Nicolaus GmbH & Co. KG, 8000 München METHOD FOR OBTAINING LIGNINE FROM ALKALINE LIGNINE SOLUTIONS
US5788812A (en) * 1985-11-05 1998-08-04 Agar; Richard C. Method of recovering furfural from organic pulping liquor
AT385061B (en) * 1985-11-29 1988-02-10 Neusiedler Ag METHOD FOR OBTAINING CELL FABRIC FROM PLANT FIBER MATERIAL
DE4103572C2 (en) * 1991-02-06 1995-11-23 Organocell Ges Fuer Zellstoff Process for delignifying plant fiber material
ATE245222T1 (en) * 1997-09-15 2003-08-15 Melville Gordon Brown METHOD FOR PRODUCING PULP
MY137982A (en) * 1999-08-11 2009-04-30 Startech Internat Group Ltd Integrated process for treating oil palm biomass wastes
DE102009051884A1 (en) * 2009-11-04 2011-05-05 Blue Globe Energy Gmbh Processing a biomass comprises separating the biomass into a lignin fraction and (hemi)cellulose fraction, processing the (hemi)cellulose fraction, and converting the lignin fraction into an organo-mineral fertilizer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532741C (en) * 1929-11-02 1931-09-08 Kurt Von Tayenthal Dr Ing Process for the digestion of vegetable fibers
GB945957A (en) * 1960-02-08 1964-01-08 Ass Pulp & Paper Mills Continuous pulping process
US3585104A (en) * 1968-07-29 1971-06-15 Theodor N Kleinert Organosolv pulping and recovery process
DE2644155C2 (en) * 1976-09-30 1978-07-27 Theodor N. Dr. Pointe Claire Quebec Kleinert (Kanada) Continuous digestion and recovery process for vegetable fiber raw materials for the production of cellulose in organic solvents
CA1131415A (en) * 1978-11-27 1982-09-14 Bau- Und Forschungsgesellschaft Thermoform A.G. Pulping of lignocellulose with aqueous methanol/ catalyst mixture

Also Published As

Publication number Publication date
FI69130B (en) 1985-08-30
EP0012960A1 (en) 1980-07-09
PL220500A1 (en) 1980-12-01
FI69130C (en) 1985-12-10
DE2964181D1 (en) 1983-01-05
DE2855052A1 (en) 1980-06-26
CA1111694A (en) 1981-11-03
FI793985A (en) 1980-06-21
BR7908189A (en) 1980-07-22
EP0012960B1 (en) 1982-12-01

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Legal Events

Date Code Title Description
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee