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CA2135826A1 - Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling - Google Patents

Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling

Info

Publication number
CA2135826A1
CA2135826A1 CA002135826A CA2135826A CA2135826A1 CA 2135826 A1 CA2135826 A1 CA 2135826A1 CA 002135826 A CA002135826 A CA 002135826A CA 2135826 A CA2135826 A CA 2135826A CA 2135826 A1 CA2135826 A1 CA 2135826A1
Authority
CA
Canada
Prior art keywords
wastepaper
inorganic components
oily waste
ignition
paper during
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.)
Granted
Application number
CA002135826A
Other languages
French (fr)
Other versions
CA2135826C (en
Inventor
Edward D. Magauran
Charles A. Cody
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.)
Rheox International Inc
Original Assignee
Rheox International Inc
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 Rheox International Inc filed Critical Rheox International Inc
Priority to CA 2135826 priority Critical patent/CA2135826C/en
Publication of CA2135826A1 publication Critical patent/CA2135826A1/en
Application granted granted Critical
Publication of CA2135826C publication Critical patent/CA2135826C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

A process for treating wastepaper to remove oily waste and inorganic components, which comprises:
(a) forming an organoclay treating composition in a wastepaper aqueous system: (b) contacting the wastepaper aqueous system with an amount of the organoclay effective to remove from the wastepaper oily waste and inorganic components; and (c) recovering paper pulp from the aqueous system. The process is effective in wastepaper treatment systems using both air flotation removal as well as systems utilizing water-washing processes.
CA 2135826 1994-11-15 1994-11-15 Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling Expired - Fee Related CA2135826C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2135826 CA2135826C (en) 1994-11-15 1994-11-15 Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2135826 CA2135826C (en) 1994-11-15 1994-11-15 Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling

Publications (2)

Publication Number Publication Date
CA2135826A1 true CA2135826A1 (en) 1996-05-16
CA2135826C CA2135826C (en) 2001-05-08

Family

ID=4154668

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2135826 Expired - Fee Related CA2135826C (en) 1994-11-15 1994-11-15 Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling

Country Status (1)

Country Link
CA (1) CA2135826C (en)

Also Published As

Publication number Publication date
CA2135826C (en) 2001-05-08

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