CA2197241C - Melanges de persulfate/metal pour le repulpage et la decoloration - Google Patents

Melanges de persulfate/metal pour le repulpage et la decoloration Download PDF

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Publication number
CA2197241C
CA2197241C CA 2197241 CA2197241A CA2197241C CA 2197241 C CA2197241 C CA 2197241C CA 2197241 CA2197241 CA 2197241 CA 2197241 A CA2197241 A CA 2197241A CA 2197241 C CA2197241 C CA 2197241C
Authority
CA
Canada
Prior art keywords
formulation
persulfate
adjuster
catalyst
sesquicarbonate
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 - Fee Related
Application number
CA 2197241
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English (en)
Other versions
CA2197241A1 (fr
Inventor
Robert Hugo Tieckelmann
Dean Samuel Thorp
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Priority claimed from PCT/US1994/008861 external-priority patent/WO1995005504A1/fr
Publication of CA2197241A1 publication Critical patent/CA2197241A1/fr
Application granted granted Critical
Publication of CA2197241C publication Critical patent/CA2197241C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)

Abstract

L'invention concerne des formulations et mélanges servant à la désintégration et/ou à la décoloration de vieux papiers, qui comprennent une quantité catalytique d'un sel d'un métal tel que du cuivre, du fer, de l'argent ou du nickel; un persulfate; et de 0 à 10 % de saccharide. Pour régler le pH, on préfère les formulations contenant un carbonate, un sesquicarbonate ou un bicarbonate. L'invention concerne un procédé de désintégration et/ou de décoloration des déchets de papier, que ceux-ci contiennent ou non une résine résistant à l'état humide, ledit procédé utilisant les formulations mentionnées ci-dessus ou des mélanges des ingrédients de ces formulations.
CA 2197241 1993-08-17 1994-08-04 Melanges de persulfate/metal pour le repulpage et la decoloration Expired - Fee Related CA2197241C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10820293A 1993-08-17 1993-08-17
US08/108,202 1993-08-17
PCT/US1994/008861 WO1995005504A1 (fr) 1993-08-17 1994-08-04 Melanges de persulfate/metal servant a la desintegration et a la decoloration de vieux papiers

Publications (2)

Publication Number Publication Date
CA2197241A1 CA2197241A1 (fr) 1995-02-23
CA2197241C true CA2197241C (fr) 2005-10-25

Family

ID=35311699

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2197241 Expired - Fee Related CA2197241C (fr) 1993-08-17 1994-08-04 Melanges de persulfate/metal pour le repulpage et la decoloration

Country Status (1)

Country Link
CA (1) CA2197241C (fr)

Also Published As

Publication number Publication date
CA2197241A1 (fr) 1995-02-23

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