BR0313820A - Método para modificar propriedades elétricas de composições para fabricação de papel e método para reduzir uma quantidade de aditivos quìmicos introduzidos em uma composição de fabricação de papel - Google Patents

Método para modificar propriedades elétricas de composições para fabricação de papel e método para reduzir uma quantidade de aditivos quìmicos introduzidos em uma composição de fabricação de papel

Info

Publication number
BR0313820A
BR0313820A BR0313820-8A BR0313820A BR0313820A BR 0313820 A BR0313820 A BR 0313820A BR 0313820 A BR0313820 A BR 0313820A BR 0313820 A BR0313820 A BR 0313820A
Authority
BR
Brazil
Prior art keywords
papermaking
compositions
electrical properties
value
carbon dioxide
Prior art date
Application number
BR0313820-8A
Other languages
English (en)
Inventor
V S Meenakshi Sundaram
Daniel Duarte
Steven A Fisher
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
Application filed by Air Liquide filed Critical Air Liquide
Publication of BR0313820A publication Critical patent/BR0313820A/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
    • 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
    • D21H23/08—Controlling the addition by measuring pulp properties, e.g. zeta potential, pH
    • 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

Landscapes

  • Paper (AREA)

Abstract

"MéTODO PARA MODIFICAR PROPRIEDADES ELéTRICAS DE COMPOSIçõES PARA FABRICAçãO DE PAPEL E MéTODO PARA REDUZIR UMA QUANTIDADE DE ADITIVOS QUìMICOS INTRODUZIDOS EM UMA COMPOSIçãO DE FABRICAçãO DE PAPEL". Dióxido de carbono pode ser usado para ajustar as propriedades elétricas de composições de fabricação de papel. Tais composições de fabricação de papel podem conter uma fase coloidal, uma fase aquosa e, opcionalmente, fibras de polpa. Exemplos de propriedades elétricas cujos valores podem ser ajustados incluem potencial zeta, demanda de carga elétrica, condutividade e potencial de escorrimento. O dióxido de carbono pode ser introduzido em muitos diferentes pontos em um processo de fabricação de papel, incluindo suprimentos de pastas fluidas de carbonato de cálcio, pastas fluidas de fibras de polpa, pastas fluidas de fibras de polpa diluídas, refugo e água branca. Quando um valor ou faixa de valores baseados em uma propriedade elétrica é predeterminado, tal como um valor ou faixa ótimo, a introdução de dióxido de carbono pode ser usada para ajustar o valor de modo que fique próximo do valor predeterminado.
BR0313820-8A 2002-09-30 2003-09-17 Método para modificar propriedades elétricas de composições para fabricação de papel e método para reduzir uma quantidade de aditivos quìmicos introduzidos em uma composição de fabricação de papel BR0313820A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US41487602P 2002-09-30 2002-09-30
US10/656,857 US7056419B2 (en) 2002-09-30 2003-09-06 Methods for modifying electrical properties of papermaking compositions using carbon dioxide
PCT/IB2003/003997 WO2004029359A1 (en) 2002-09-30 2003-09-17 Methods for modifying electrical properties of papermaking compositions using carbon dioxide

Publications (1)

Publication Number Publication Date
BR0313820A true BR0313820A (pt) 2005-07-05

Family

ID=32045299

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0313820-8A BR0313820A (pt) 2002-09-30 2003-09-17 Método para modificar propriedades elétricas de composições para fabricação de papel e método para reduzir uma quantidade de aditivos quìmicos introduzidos em uma composição de fabricação de papel

Country Status (8)

Country Link
US (1) US7056419B2 (pt)
EP (1) EP1552059A1 (pt)
JP (1) JP4448089B2 (pt)
CN (1) CN100342082C (pt)
AU (1) AU2003263428A1 (pt)
BR (1) BR0313820A (pt)
CA (1) CA2495006C (pt)
WO (1) WO2004029359A1 (pt)

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Also Published As

Publication number Publication date
CA2495006C (en) 2008-04-08
JP2006501383A (ja) 2006-01-12
CN1685110A (zh) 2005-10-19
US20040118539A1 (en) 2004-06-24
CN100342082C (zh) 2007-10-10
JP4448089B2 (ja) 2010-04-07
US7056419B2 (en) 2006-06-06
AU2003263428A1 (en) 2004-04-19
EP1552059A1 (en) 2005-07-13
CA2495006A1 (en) 2004-04-08
WO2004029359A1 (en) 2004-04-08

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 7A E 8A 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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.