DE69725858D1 - Verfahren zum agglomerieren von klebenden verunreinigungen aus altpapier-suspensionen - Google Patents

Verfahren zum agglomerieren von klebenden verunreinigungen aus altpapier-suspensionen

Info

Publication number
DE69725858D1
DE69725858D1 DE69725858T DE69725858T DE69725858D1 DE 69725858 D1 DE69725858 D1 DE 69725858D1 DE 69725858 T DE69725858 T DE 69725858T DE 69725858 T DE69725858 T DE 69725858T DE 69725858 D1 DE69725858 D1 DE 69725858D1
Authority
DE
Germany
Prior art keywords
waste paper
agglomizing
adhesive impurities
paper suspensions
suspensions
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
DE69725858T
Other languages
English (en)
Other versions
DE69725858T2 (de
Inventor
Gary Thurman
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.)
Union Camp Corp
Original Assignee
Union Camp 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 Union Camp Corp filed Critical Union Camp Corp
Application granted granted Critical
Publication of DE69725858D1 publication Critical patent/DE69725858D1/de
Publication of DE69725858T2 publication Critical patent/DE69725858T2/de
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
    • D21C9/086—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 with organic compounds or compositions comprising organic compounds
    • 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)
  • Adhesives Or Adhesive Processes (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
DE1997625858 1996-08-26 1997-08-25 Verfahren zum agglomerieren von klebenden verunreinigungen aus altpapier-suspensionen Expired - Fee Related DE69725858T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US69746296A 1996-08-26 1996-08-26
US697462 1996-08-26
PCT/US1997/014917 WO1998009017A1 (en) 1996-08-26 1997-08-25 Method of agglomerating stickies in an aqueous slurry of wastepaper

Publications (2)

Publication Number Publication Date
DE69725858D1 true DE69725858D1 (de) 2003-12-04
DE69725858T2 DE69725858T2 (de) 2004-07-22

Family

ID=24801216

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997625858 Expired - Fee Related DE69725858T2 (de) 1996-08-26 1997-08-25 Verfahren zum agglomerieren von klebenden verunreinigungen aus altpapier-suspensionen

Country Status (5)

Country Link
EP (1) EP0920551B1 (de)
AT (1) ATE253137T1 (de)
CA (1) CA2264034C (de)
DE (1) DE69725858T2 (de)
WO (1) WO1998009017A1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518459A (en) * 1979-11-13 1985-05-21 Economics Laboratory, Inc. Methods of deinking secondary fibers
US5500082A (en) * 1993-04-26 1996-03-19 North Carolina State University Deinking of xerographic printed wastepaper using long chain alcohol

Also Published As

Publication number Publication date
EP0920551A1 (de) 1999-06-09
DE69725858T2 (de) 2004-07-22
EP0920551A4 (de) 1999-11-17
WO1998009017A1 (en) 1998-03-05
ATE253137T1 (de) 2003-11-15
CA2264034A1 (en) 1998-03-05
CA2264034C (en) 2007-01-23
EP0920551B1 (de) 2003-10-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee