CA2177254C - Desencrage de vieux papiers par traitement a l'aide d'une enzyme de decomposition de l'amidon telle que l'amylase - Google Patents

Desencrage de vieux papiers par traitement a l'aide d'une enzyme de decomposition de l'amidon telle que l'amylase Download PDF

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Publication number
CA2177254C
CA2177254C CA 2177254 CA2177254A CA2177254C CA 2177254 C CA2177254 C CA 2177254C CA 2177254 CA2177254 CA 2177254 CA 2177254 A CA2177254 A CA 2177254A CA 2177254 C CA2177254 C CA 2177254C
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CA
Canada
Prior art keywords
enzyme
done
disintegration
treatment
paper
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA 2177254
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English (en)
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CA2177254A1 (fr
Inventor
Masaki Sharyo
Hidesato Shimoto
Hiromichi Sakaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novozymes AS
Original Assignee
Novozymes AS
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
Priority claimed from DK131193A external-priority patent/DK131193D0/da
Application filed by Novozymes AS filed Critical Novozymes AS
Publication of CA2177254A1 publication Critical patent/CA2177254A1/fr
Application granted granted Critical
Publication of CA2177254C publication Critical patent/CA2177254C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Abstract

Dans la production de la pâte à papier et du papier à partir de papier amidonné, l'effet de désencrage peut être amélioré au moyen d'un traitement supplémentaire utilisant une enzyme de décomposition de l'amidon telle que l'amylase ou une enzyme débranchante. Le procédé consiste à effectuer le traitement enzymatique avant, pendant ou après la désintégration du papier pour produire la pâte, et à séparer les particules de l'encre.
CA 2177254 1993-11-23 1994-11-23 Desencrage de vieux papiers par traitement a l'aide d'une enzyme de decomposition de l'amidon telle que l'amylase Expired - Lifetime CA2177254C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK1311/93 1993-11-23
DK131193A DK131193D0 (fr) 1993-11-23 1993-11-23
PCT/DK1994/000437 WO1995014807A1 (fr) 1993-11-23 1994-11-23 Desencrage de vieux papiers par traitement a l'aide d'une enzyme de decomposition de l'amidon telle que l'amylase

Publications (2)

Publication Number Publication Date
CA2177254A1 CA2177254A1 (fr) 1995-06-01
CA2177254C true CA2177254C (fr) 2005-10-25

Family

ID=35311635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2177254 Expired - Lifetime CA2177254C (fr) 1993-11-23 1994-11-23 Desencrage de vieux papiers par traitement a l'aide d'une enzyme de decomposition de l'amidon telle que l'amylase

Country Status (1)

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CA (1) CA2177254C (fr)

Also Published As

Publication number Publication date
CA2177254A1 (fr) 1995-06-01

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