ES8204015A1 - Procedimiento para preparar pulpa celulosica - Google Patents

Procedimiento para preparar pulpa celulosica

Info

Publication number
ES8204015A1
ES8204015A1 ES502709A ES502709A ES8204015A1 ES 8204015 A1 ES8204015 A1 ES 8204015A1 ES 502709 A ES502709 A ES 502709A ES 502709 A ES502709 A ES 502709A ES 8204015 A1 ES8204015 A1 ES 8204015A1
Authority
ES
Spain
Prior art keywords
pulping
mixture
employing
water
sulfide
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.)
Expired
Application number
ES502709A
Other languages
English (en)
Other versions
ES502709A0 (es
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.)
University of Washington
Original Assignee
University of Washington
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 University of Washington filed Critical University of Washington
Publication of ES502709A0 publication Critical patent/ES502709A0/es
Publication of ES8204015A1 publication Critical patent/ES8204015A1/es
Expired 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
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
    • 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

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR PULPA CELULOSICA. COMPRENDE LAS ETAPAS DE FORMAR UN SISTEMA ACUOSO DE PULPACION A BASE DE LIGNOCELULOSA Y UN LICOR DE PULPACION ACUOSO CONTENIENDO AGUA, UN REACTIVO ORGANICO MISCIBLE CON AGUA Y AL MENOS UN SULFURO O BISULFURO DE METAL ALCALINO O DE AMONIO, Y SOMETER A PULPACION LA LIGNOCELULOSA A UNA TEMPERATURA ELEVADA Y DURANTE UN TIEMPO SUFICIENTE PARA PRODUCIR SELECTIVAMENTE FIBRILADA Y SUSTANCIALMENTE DESLIGNIFICADA.
ES502709A 1980-06-02 1981-06-02 Procedimiento para preparar pulpa celulosica Expired ES8204015A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/155,244 US4329200A (en) 1980-06-02 1980-06-02 Method and system for selective alkaline defiberization and delignification

Publications (2)

Publication Number Publication Date
ES502709A0 ES502709A0 (es) 1982-04-01
ES8204015A1 true ES8204015A1 (es) 1982-04-01

Family

ID=22554632

Family Applications (1)

Application Number Title Priority Date Filing Date
ES502709A Expired ES8204015A1 (es) 1980-06-02 1981-06-02 Procedimiento para preparar pulpa celulosica

Country Status (8)

Country Link
US (1) US4329200A (es)
EP (1) EP0041401B1 (es)
JP (1) JPS57500933A (es)
AT (1) ATE5268T1 (es)
DE (1) DE3161365D1 (es)
ES (1) ES8204015A1 (es)
NZ (1) NZ197251A (es)
WO (1) WO1981003505A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2358885B1 (en) * 2008-12-19 2017-03-15 E. I. du Pont de Nemours and Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
US8304213B2 (en) 2008-12-19 2012-11-06 E I Du Pont De Nemours And Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
US8216809B2 (en) 2008-12-19 2012-07-10 E I Du Pont De Nemours And Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
US8278070B2 (en) 2008-12-19 2012-10-02 E I Du Pont De Nemours And Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
US8241873B2 (en) * 2008-12-19 2012-08-14 E I Du Pont De Nemours And Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
US20100159522A1 (en) * 2008-12-19 2010-06-24 E.I. De Pont De Nemours And Company Organosolv and ozone treatment of biomass to enhance enzymatic saccharification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1735013A (en) * 1928-06-01 1929-11-12 Brown Co Process of pulping raw cellulosic material
US1817525A (en) * 1929-03-12 1931-08-04 Brown Co Production of chemical wood pulp
FR704698A (fr) * 1929-11-02 1931-05-23 Procédé de désagrégation de substances fibreuses végétales en vue de l'obtention simultanée de la cellulose et des matières incrustantes
US1891337A (en) * 1930-01-09 1932-12-20 Du Pont Process of producing cellulose
GB398801A (en) * 1932-02-16 1933-09-18 Henry Dreyfus Improvements in or relating to the manufacture of cellulose or cellulosic materials
US2166540A (en) * 1937-12-17 1939-07-18 Univ Minnesota Alcoholic treatment of ligneous cellulosic material
CA856133A (en) * 1967-01-13 1970-11-17 Rayonier Inc. Process for pulping wood chips and product
BE756225A (fr) * 1969-09-26 1971-03-01 Brev Ind Et Chimiques Soc Gen Procede de fabrication de pate cellulosique

Also Published As

Publication number Publication date
ATE5268T1 (de) 1983-11-15
DE3161365D1 (en) 1983-12-15
NZ197251A (en) 1983-11-18
EP0041401A1 (en) 1981-12-09
JPS57500933A (es) 1982-05-27
ES502709A0 (es) 1982-04-01
WO1981003505A1 (en) 1981-12-10
US4329200A (en) 1982-05-11
EP0041401B1 (en) 1983-11-09

Similar Documents

Publication Publication Date Title
SE7801868L (sv) Blekning av lignocellulosamaterial med peroxidhaltiga blekmedel
GR3007008T3 (es)
SE7706247L (sv) Massakokningsforfarande
BR9609008A (pt) Processo de produção de polpa a partir de materiais de planta fibrosos, aparelho para a formação de polpa de materiais de planta fibrosos e polpa.
NO891117D0 (no) Fremgangsmaate for bleking av mekanisk masse av ved.
SE8501247L (sv) Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvedning av tvastegsimpregnering
ES8204015A1 (es) Procedimiento para preparar pulpa celulosica
ES8704569A1 (es) Procedimiento de disgregacion con sulfito para la preparacion de celulosa a partir de materiales que contienen lignocelulosa con recuperacion de los productos quimicos de disgregacion
ATE21133T1 (de) Verfahren zur herstellung von halbgebleichten zellstoffen.
SE8403372D0 (sv) Fremgangsmate til delignifisering av kjemisk masse
FI912806A0 (fi) Ligninpreparat och foerfarande foer dess framstaellning.
SE9601643D0 (sv) Framställning av pappersmassa
EP0262988A3 (en) Manufacture of pulp
FR2398839A1 (fr) Procede de fabrication de pates papetieres chimiques
SE8405061L (sv) Sett att framstella cellulosamassa
GB1301031A (en) Pulp and a process for the production thereof
US3451889A (en) Method of digesting wood by the kraft process utilizing organic sulfides
SE8501338D0 (sv) Pulping process
DE3274887D1 (en) A method of polysulphide treatment in alkaline pulping of lignocellulose material
MY110586A (en) Improved bleaching of high consistency lignocellulosic pulp
SE9700283L (sv) Framställningsprocess för pappersmassa
GB2069560B (en) Producing cellulosic pulp by thermomechanical pulping
SE9000120L (sv) Barrvedssulfatmassa, foefarande foer dess framstaellning och anvaendning av massan
JPS5721592A (en) Production of digesting liquor of sulfite pulp
Du Plooy Alkaline Pulping: A Development Study