CA2214019C - Traitement pour inhiber la formation de depots dans des systemes de fabrication de papier - Google Patents

Traitement pour inhiber la formation de depots dans des systemes de fabrication de papier Download PDF

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Publication number
CA2214019C
CA2214019C CA 2214019 CA2214019A CA2214019C CA 2214019 C CA2214019 C CA 2214019C CA 2214019 CA2214019 CA 2214019 CA 2214019 A CA2214019 A CA 2214019A CA 2214019 C CA2214019 C CA 2214019C
Authority
CA
Canada
Prior art keywords
pulp
polyvinyl alcohol
molecular weight
gelatin
deposition
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 2214019
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English (en)
Other versions
CA2214019A1 (fr
Inventor
Duy T. Nguyen
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.)
Solenis Technologies Cayman LP
Original Assignee
Hercules LLC
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 US08/421,349 external-priority patent/US5536363A/en
Application filed by Hercules LLC filed Critical Hercules LLC
Publication of CA2214019A1 publication Critical patent/CA2214019A1/fr
Application granted granted Critical
Publication of CA2214019C publication Critical patent/CA2214019C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

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  • Paper (AREA)

Abstract

La présente invention décrit des compositions et des procédés d'inhibition de la formation des dépôts de contaminants organiques de pâte à papier sur les surfaces de systèmes de fabrication de pâte à papier et de papier. La composition est une combinaison d'alcool polyvinylique présentant un "pourcentage d'hydrolyse" compris entre 50 et 100 et comportant une gélatine de poids moléculaire élevé ayant un poids moléculaire d'environ 100 000 ou plus. Ladite composition est ajoutée à la pâte à papier ou pulvérisée sur les surfaces des systèmes de fabrication de pâte à papier et de papier. Dans un mode de réalisation préféré de l'invention, la synergie est démontrée par un rapport en poids de 8 à 1 de l'alcool polyvinylique à la gélatine de poids moléculaire élevé.
CA 2214019 1995-04-12 1996-03-25 Traitement pour inhiber la formation de depots dans des systemes de fabrication de papier Expired - Lifetime CA2214019C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/421,349 US5536363A (en) 1995-04-12 1995-04-12 Methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems using a composition comprising of polyvinyl alcohol and gelatin
US08/421,349 1995-04-12
PCT/US1996/003960 WO1996032530A1 (fr) 1995-04-12 1996-03-25 Traitement pour inhiber la formation de depots dans des systemes de fabrication de papier

Publications (2)

Publication Number Publication Date
CA2214019A1 CA2214019A1 (fr) 1996-10-17
CA2214019C true CA2214019C (fr) 2006-07-04

Family

ID=36648508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2214019 Expired - Lifetime CA2214019C (fr) 1995-04-12 1996-03-25 Traitement pour inhiber la formation de depots dans des systemes de fabrication de papier

Country Status (1)

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CA (1) CA2214019C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110373928B (zh) * 2019-08-07 2024-05-03 云南云景林纸股份有限公司 一种制浆造纸过程中吸附树脂及胶黏物的装置

Also Published As

Publication number Publication date
CA2214019A1 (fr) 1996-10-17

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