BR9100565A - Processo para producao de polpa dissolvente de qualidade e processo para reducao de teor de lignina de polpa nao descorada - Google Patents

Processo para producao de polpa dissolvente de qualidade e processo para reducao de teor de lignina de polpa nao descorada

Info

Publication number
BR9100565A
BR9100565A BR919100565A BR9100565A BR9100565A BR 9100565 A BR9100565 A BR 9100565A BR 919100565 A BR919100565 A BR 919100565A BR 9100565 A BR9100565 A BR 9100565A BR 9100565 A BR9100565 A BR 9100565A
Authority
BR
Brazil
Prior art keywords
pulp
unpolored
dissolvent
quality
reducing
Prior art date
Application number
BR919100565A
Other languages
English (en)
Portuguese (pt)
Inventor
Stephanus Jacobus Raubenheimer
Original Assignee
Sappi Ltd
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 Sappi Ltd filed Critical Sappi Ltd
Publication of BR9100565A publication Critical patent/BR9100565A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid 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
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
BR919100565A 1990-02-12 1991-02-08 Processo para producao de polpa dissolvente de qualidade e processo para reducao de teor de lignina de polpa nao descorada BR9100565A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA901031 1990-02-12

Publications (1)

Publication Number Publication Date
BR9100565A true BR9100565A (pt) 1991-10-29

Family

ID=25580010

Family Applications (2)

Application Number Title Priority Date Filing Date
BR919100565A BR9100565A (pt) 1990-02-12 1991-02-08 Processo para producao de polpa dissolvente de qualidade e processo para reducao de teor de lignina de polpa nao descorada
BR919100592A BR9100592A (pt) 1990-02-12 1991-02-13 Processo para producao de polpa de material contendo lignocelulose

Family Applications After (1)

Application Number Title Priority Date Filing Date
BR919100592A BR9100592A (pt) 1990-02-12 1991-02-13 Processo para producao de polpa de material contendo lignocelulose

Country Status (10)

Country Link
EP (1) EP0442806A1 (ru)
AU (1) AU643746B2 (ru)
BR (2) BR9100565A (ru)
CA (1) CA2036311A1 (ru)
FI (1) FI910655A (ru)
MW (1) MW191A1 (ru)
NZ (1) NZ237098A (ru)
PT (1) PT96722A (ru)
RU (1) RU2037594C1 (ru)
ZW (1) ZW1191A1 (ru)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057438A (en) * 1996-10-11 2000-05-02 Eastman Chemical Company Process for the co-production of dissolving-grade pulp and xylan
AU9778398A (en) * 1997-10-01 1999-04-23 Weyerhaeuser Company Cellulose treatment and the resulting product
EP1883731B1 (en) 2005-05-24 2015-11-11 International Paper Company Modified kraft fibers
KR20110123184A (ko) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 높은 알파 용해 펄프 제조를 위한 방법 및 시스템
CN104345126B (zh) * 2014-09-23 2016-02-17 周栋 一种快速评价楹木硫酸盐法制浆工艺的方法
CN104330525B (zh) * 2014-09-24 2016-03-23 梁朔 一种快速评价桉木烧碱蒽醌法制浆工艺的方法
EP3960771A1 (en) 2014-11-12 2022-03-02 Renmatix, Inc. Method of coalescing a substance
SE538752C2 (en) * 2014-11-21 2016-11-08 Innventia Ab Process for the production of a treated pulp, treated pulp, and textile fibers produced from the treated pulp
GB2534589A (en) * 2015-01-28 2016-08-03 Innovia Films Ltd Process
SG10201503723TA (en) * 2015-05-12 2016-12-29 Pt Sateri Viscose Internat Dissolving Pulp
FI130070B (fi) * 2018-03-07 2023-01-31 Andritz Oy Menetelmä liukosellun valmistamiseksi
FI130568B (en) 2020-07-06 2023-11-21 Amppc Finland Oy COOKING METHOD

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301314A (en) * 1935-02-16 1942-11-10 Univ Minnesota Board Of Regent Process of making alpha cellulose

Also Published As

Publication number Publication date
FI910655A0 (fi) 1991-02-11
EP0442806A1 (en) 1991-08-21
FI910655A (fi) 1991-08-13
BR9100592A (pt) 1991-10-29
MW191A1 (en) 1991-09-10
ZW1191A1 (en) 1991-08-28
AU643746B2 (en) 1993-11-25
AU7098791A (en) 1991-08-15
PT96722A (pt) 1991-10-31
NZ237098A (en) 1994-01-26
RU2037594C1 (ru) 1995-06-19
CA2036311A1 (en) 1991-08-13

Similar Documents

Publication Publication Date Title
BR9306334A (pt) Processo para o branqueamento de polpa
BR9100565A (pt) Processo para producao de polpa dissolvente de qualidade e processo para reducao de teor de lignina de polpa nao descorada
BR9508061A (pt) Estrutura de papel aparelho para usar na produção de uma textura de fibras de fabricar papel e processo para formar uma estrutura de papel
BR9408596A (pt) Processo para alvejamento de polpa de madeira kraft
BR8806133A (pt) Processo para producao de eteres e processo para producao de alquenos de elevada pureza
BR9007254A (pt) Processo para preparar polpa
BR8403235A (pt) Processo de formacao continua de feltros de fibra de um material vitreo e dispositivo para a pratica do processo
BR9104455A (pt) Processo para deslignificacao de polpa com oxigenio,processo para deslignificacao e alvejamento de polpa e polpa
FI952630A (fi) Uudenlainen ksylanaasi, menetelmä sen tuottamiseksi, menetelmä massan käsittelemiseksi ja ksylo-oligosakkaridien tuottaminen
BR9505502A (pt) Processo para deslignificação e branqueamento de polpa de organossolvente e polpa de organossolvente
BR9000983A (pt) Aparelho e processo para a deslignificacao de polpa de celulose
PT83603B (pt) Processo para descorar polpa de celulose
ZA92466B (en) Process for the delignification of cellulosic fibre raw materials
BR9206211A (pt) Processo para tratamento de polpa aquosa
BR8405320A (pt) Processo para a producao de polpa mecanica e polpa mecanica branqueada possuindo alvura acentuada
BR9006578A (pt) Processo de branqueamento de polpa de material de fibra celulosica
PT99335A (pt) Aparelho e processo para a producao de acido peroxomonossulfurico
BR8505099A (pt) Processo para remocao de resina em polpa mecanica de alto rendimento atraves de uma desidratacao mecanica
BR8400686A (pt) Processo e aparelho para determinar as propriedades de polpa de fibra
BR8801589A (pt) Processo para producao continua de polpa contendo fibras de duas ou mais diferentes materias primas
BR9302956A (pt) Processo para a producao de papel fiduciario em uma maquina fourdrinier e papel fiduciario assim produzido
FR2545847B1 (fr) Fibres acryliques et procede pour la production de fibres preoxydees
BR9205869A (pt) Processo para fiação de fibra e produto produzido pelo mesmo
BR9206860A (pt) Processo e preparação enzimática para tratamento de pastas de celulose
BR8601558A (pt) Processo para producao de polpa celulosica e sua respectiva polpa

Legal Events

Date Code Title Description
KF Request for proof of payment of annual fee
FD5 Application fees: dismissal - article 86 of industrial property law