BR9508634A - Formação de polpa por sulfito alcalino - Google Patents

Formação de polpa por sulfito alcalino

Info

Publication number
BR9508634A
BR9508634A BR9508634A BR9508634A BR9508634A BR 9508634 A BR9508634 A BR 9508634A BR 9508634 A BR9508634 A BR 9508634A BR 9508634 A BR9508634 A BR 9508634A BR 9508634 A BR9508634 A BR 9508634A
Authority
BR
Brazil
Prior art keywords
pulping
monosulphite
solvent
alkaline
alkaline sulfite
Prior art date
Application number
BR9508634A
Other languages
English (en)
Inventor
Karl Fuchs
Albert Huber
Hans-Ludwig Schubert
Original Assignee
Impco Voest Alpine Pulp Tech
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 Impco Voest Alpine Pulp Tech filed Critical Impco Voest Alpine Pulp Tech
Publication of BR9508634A publication Critical patent/BR9508634A/pt

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
BR9508634A 1994-08-26 1995-08-25 Formação de polpa por sulfito alcalino BR9508634A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0165194A AT401068B (de) 1994-08-26 1994-08-26 Sulfitaufschlussverfahren
PCT/AT1995/000170 WO1996006974A1 (de) 1994-08-26 1995-08-25 Sulfitaufschlussverfahren

Publications (1)

Publication Number Publication Date
BR9508634A true BR9508634A (pt) 1997-12-30

Family

ID=3518027

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9508634A BR9508634A (pt) 1994-08-26 1995-08-25 Formação de polpa por sulfito alcalino

Country Status (12)

Country Link
EP (1) EP0777780B1 (pt)
CN (1) CN1160426A (pt)
AT (2) AT401068B (pt)
BR (1) BR9508634A (pt)
CA (1) CA2198485A1 (pt)
DE (1) DE59504281D1 (pt)
ES (1) ES2126305T3 (pt)
FI (1) FI970707A0 (pt)
ID (1) ID15812A (pt)
RU (1) RU2124083C1 (pt)
WO (1) WO1996006974A1 (pt)
ZA (1) ZA956506B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325723C (zh) * 2005-03-09 2007-07-11 中国制浆造纸研究院 棉杆或灌木或枝桠材的制浆方法
ES2447375T3 (es) * 2008-12-17 2014-03-11 Borregaard As Conversión de biomasa lignocelulósica por medio de tratamiento previo con sulfito
CN104878638B (zh) * 2015-06-24 2017-09-15 济南圣泉集团股份有限公司 纤维素、木质素磺酸盐的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518005A1 (de) * 1985-05-18 1986-11-20 Kraftanlagen Ag, 6900 Heidelberg Sulfitaufschlussverfahren zur herstellung von zellstoff aus lignozellulosehaltigen materialien mit rueckgewinnung der aufschlusschemikalien
DE4103572C2 (de) * 1991-02-06 1995-11-23 Organocell Ges Fuer Zellstoff Verfahren zum Delignifizieren von Pflanzenfasermaterial
AT398440B (de) * 1991-10-25 1994-12-27 Waagner Biro Ag Verfahren zur rückgewinnung der chemikalien der kochlauge

Also Published As

Publication number Publication date
RU2124083C1 (ru) 1998-12-27
AT401068B (de) 1996-06-25
ATE173517T1 (de) 1998-12-15
FI970707A (fi) 1997-02-19
ES2126305T3 (es) 1999-03-16
WO1996006974A1 (de) 1996-03-07
FI970707A0 (fi) 1997-02-19
EP0777780A1 (de) 1997-06-11
ATA165194A (de) 1995-10-15
ZA956506B (en) 1996-03-18
DE59504281D1 (de) 1998-12-24
ID15812A (id) 1997-08-14
CN1160426A (zh) 1997-09-24
CA2198485A1 (en) 1996-03-07
EP0777780B1 (de) 1998-11-18

Similar Documents

Publication Publication Date Title
BR9405642A (pt) Processo para a preparação de soluções de celulose
FI891248A (fi) Menetelmä puumassan samanaikaiseksi jauhamiseksi ja valkaisemiseksi
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
BR9201847A (pt) Processo para o tratamento de polpa secundaria compreendendo fibras celulosicas e contaminantes viscosos e produto de papel reciclado produzido
BR9508634A (pt) Formação de polpa por sulfito alcalino
BR9006578A (pt) Processo de branqueamento de polpa de material de fibra celulosica
BR8405541A (pt) Processo para a producao de lignino mediante precipitacao de solucoes de lignino alcalinas
ID22210A (id) Pembuatan bahan sutera nabati
EA199900013A1 (ru) Препараты лейкоиндиго в форме гранулята, способ их получения и способ крашения текстильных материалов, содержащих целлюлозу
BR9006579A (pt) Processo de branqueamento de polpa de material de fibra celulosica
BR8705254A (pt) Licor de polpacao e processo para producao de polpa lignocelulosica
NO953397L (no) Fremgangsmåte og anlegg for fremstilling av celluloseavlut
FR2158873A5 (en) Bleaching of wood cellulose - using nitrogen oxides
FI871730A0 (fi) Foerfarande foer framstaellning av hemicellulosahydrolysat och specialmassa.
SE9301834L (sv) Massaframställning genom uppslutning av en blandning av cellulosabaserat returmaterial och råträ
KR850001340A (ko) 요소(urea)ㆍ알칼리 증해액에 의한 화학펄프제조법
PT881326E (pt) Processo para a preparacao de celuloses speciais branqueadas
KR920001033A (ko) 리파아제를 이용한 재생 펄프의 제조방법
JPS5411321A (en) Production of hollow cellulose fibers
SE8502556D0 (sv) Sett att behandla fibermaterial
YU38891A (sh) Postupak za lepljenje papira i sličnih proizvoda
BR8301418A (pt) Processo de producao de acucares industriais de fermentacao a partir de materias-primas celulosicas e de celulose
PT83751B (pt) Processo aperfeicoado para a deslignificacao e branqueamento de uma polpa de celulose, com uma extraccao alcalina na presenca de oxigenio e de hipoclorito
NO164851C (no) Fremgangsmaate for redusering av energiforbruket ved raffinering av celluloseholdig materiale.
CS189468B1 (en) Method of producing proteinous biomasse in employment of hemicelluloses in waste dialysis liquors from the production of cellulosic fibres by yeast aureobasidium pullulants

Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law