BR0002954A - Aperfeiçoamento nos processos de fabricação de produtos de papelaria, visando a incorporar, nesses produtos, restos de papel que necessitam de um tratamento básico - Google Patents

Aperfeiçoamento nos processos de fabricação de produtos de papelaria, visando a incorporar, nesses produtos, restos de papel que necessitam de um tratamento básico

Info

Publication number
BR0002954A
BR0002954A BR0002954-8A BR0002954A BR0002954A BR 0002954 A BR0002954 A BR 0002954A BR 0002954 A BR0002954 A BR 0002954A BR 0002954 A BR0002954 A BR 0002954A
Authority
BR
Brazil
Prior art keywords
pulp
fraction
carbon dioxide
pulper
stage
Prior art date
Application number
BR0002954-8A
Other languages
English (en)
Portuguese (pt)
Inventor
Jean-Mathieu De Rigaud
Alain Sauvage
Original Assignee
Air Liquide
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=9547588&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0002954(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Liquide filed Critical Air Liquide
Publication of BR0002954A publication Critical patent/BR0002954A/pt

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/65—Acid compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)
BR0002954-8A 1999-07-01 2000-06-30 Aperfeiçoamento nos processos de fabricação de produtos de papelaria, visando a incorporar, nesses produtos, restos de papel que necessitam de um tratamento básico BR0002954A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9908482A FR2795753B1 (fr) 1999-07-01 1999-07-01 Perfectionnement aux procedes de fabrication de produits papetiers en vue de l'incorporation dans lesdits produits de dechets papetiers necessitant un traitement basique

Publications (1)

Publication Number Publication Date
BR0002954A true BR0002954A (pt) 2001-04-03

Family

ID=9547588

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0002954-8A BR0002954A (pt) 1999-07-01 2000-06-30 Aperfeiçoamento nos processos de fabricação de produtos de papelaria, visando a incorporar, nesses produtos, restos de papel que necessitam de um tratamento básico

Country Status (8)

Country Link
EP (1) EP1065314B1 (de)
AT (1) ATE364107T1 (de)
BR (1) BR0002954A (de)
CA (1) CA2311279A1 (de)
DE (1) DE60035084T2 (de)
ES (1) ES2286991T3 (de)
FR (1) FR2795753B1 (de)
PT (1) PT1065314E (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1175188A (en) * 1987-02-27 1988-09-01 Boc Group, Inc., The Use of gaseous carbon dioxide to adjust ph of cellulosic pulp
US6200416B1 (en) * 1997-06-10 2001-03-13 Praxair Technology, Inc. Recycled paper production process which incorporates carbon dioxide
US6086714A (en) * 1997-10-24 2000-07-11 Praxair Technology, Inc. Process for adjusting the alkalinity of pulp slurry in a broke pulper using carbon dioxide

Also Published As

Publication number Publication date
FR2795753B1 (fr) 2001-09-14
EP1065314B1 (de) 2007-06-06
DE60035084D1 (de) 2007-07-19
DE60035084T2 (de) 2008-01-31
ATE364107T1 (de) 2007-06-15
ES2286991T3 (es) 2007-12-16
PT1065314E (pt) 2007-08-06
EP1065314A1 (de) 2001-01-03
FR2795753A1 (fr) 2001-01-05
CA2311279A1 (fr) 2001-01-01

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PRESENTE PEDIDO DE PATENTE COMO INVENCAO - DE ACORDO COM O ART. 8O DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

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