BR8900300A - PROCESS FOR OBTAINING CELLULOSE - Google Patents

PROCESS FOR OBTAINING CELLULOSE

Info

Publication number
BR8900300A
BR8900300A BR8900300A BR8900300A BR8900300A BR 8900300 A BR8900300 A BR 8900300A BR 8900300 A BR8900300 A BR 8900300A BR 8900300 A BR8900300 A BR 8900300A BR 8900300 A BR8900300 A BR 8900300A
Authority
BR
Brazil
Prior art keywords
obtaining cellulose
cellulose
obtaining
Prior art date
Application number
BR8900300A
Other languages
Portuguese (pt)
Inventor
Horst H Nimz
Alex Berg
Reinhard Casten
Original Assignee
Kunz Holding Gmbh & Co Kg
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 Kunz Holding Gmbh & Co Kg filed Critical Kunz Holding Gmbh & Co Kg
Publication of BR8900300A publication Critical patent/BR8900300A/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
    • D21C3/26—Multistage 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR8900300A 1988-01-25 1989-01-26 PROCESS FOR OBTAINING CELLULOSE BR8900300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88810035A EP0325891A1 (en) 1988-01-25 1988-01-25 Process for obtaining bleached cellulose pulp

Publications (1)

Publication Number Publication Date
BR8900300A true BR8900300A (en) 1989-09-19

Family

ID=8200569

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8900300A BR8900300A (en) 1988-01-25 1989-01-26 PROCESS FOR OBTAINING CELLULOSE

Country Status (3)

Country Link
EP (1) EP0325891A1 (en)
JP (1) JPH01221586A (en)
BR (1) BR8900300A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107356C1 (en) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
DE4107357C1 (en) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
DE4107354C1 (en) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
JP2644635B2 (en) * 1991-03-25 1997-08-25 林野庁森林総合研究所長 Pulp, its production method, wood component separation method and its apparatus
DE4228171C2 (en) * 1992-08-25 1995-06-14 Kaemmerer Projekt Agentur Gmbh Process for the production of cellulose
DE19516151A1 (en) * 1995-05-03 1996-11-07 Sven Siegle Process for the production of a pulp from cellulosic material, the pulp itself and its use
CN1425090A (en) * 1999-12-22 2003-06-18 自然纸浆股份公司 Method for obtaining/recuperating by extraction carboxylic acids from waste liquors derived from pulp production
JP2006112004A (en) * 2004-10-14 2006-04-27 Kansai Paint Co Ltd Method for effectively utilizing elaeis guineensis
CN102454129A (en) * 2010-10-26 2012-05-16 李朝旺 Fiber self-coupled oxidative decomposition cleaning papermaking method
JP5938979B2 (en) * 2012-03-23 2016-06-22 日本製紙株式会社 Treatment method of plant-based materials

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2601408A (en) * 1947-08-29 1952-06-24 Celanese Corp Two-step digestion of wood with aliphatic acid
US3553076A (en) * 1968-01-22 1971-01-05 Weyerhaeuser Co Non-catalytic process for the production of cellulose from lignocellulosic materials using acetic acid
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
AT367473B (en) * 1980-04-10 1982-07-12 Kanzler Walter METHOD FOR OBTAINING FURFUROL, FORMIC, ACETIC ACID FROM ACID HYDROLYSATES OF PLANTS
DE3445132A1 (en) * 1984-12-11 1986-06-12 Nimz, Horst H., Prof.Dr., 2050 Hamburg Wood pulping with acetic acid
EP0211558A3 (en) * 1985-07-26 1987-05-27 Biodyne Chemicals, Inc. Process for digesting lignocellulosic material

Also Published As

Publication number Publication date
EP0325891A1 (en) 1989-08-02
JPH01221586A (en) 1989-09-05

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 8A, 9A, 10A, 11A, 12A, 13A, 14A, 15A, 16A, 17A, 18A, 19A E 20A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2624 DE 20-04-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.