CA2210385A1 - Utilisation de polyelectrolytes cationiques et de surfactants pour le desencrage de vieux papiers - Google Patents

Utilisation de polyelectrolytes cationiques et de surfactants pour le desencrage de vieux papiers

Info

Publication number
CA2210385A1
CA2210385A1 CA 2210385 CA2210385A CA2210385A1 CA 2210385 A1 CA2210385 A1 CA 2210385A1 CA 2210385 CA2210385 CA 2210385 CA 2210385 A CA2210385 A CA 2210385A CA 2210385 A1 CA2210385 A1 CA 2210385A1
Authority
CA
Canada
Prior art keywords
filtrate
ppm
recited
added
surfactant
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.)
Abandoned
Application number
CA 2210385
Other languages
English (en)
Inventor
Kenneth J. Chascin
Frank J. Sutman
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.)
Suez WTS USA Inc
Original Assignee
BetzDearborn 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 BetzDearborn Inc filed Critical BetzDearborn Inc
Publication of CA2210385A1 publication Critical patent/CA2210385A1/fr
Abandoned 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
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0027—Floating sedimentation devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
CA 2210385 1997-07-07 1997-07-22 Utilisation de polyelectrolytes cationiques et de surfactants pour le desencrage de vieux papiers Abandoned CA2210385A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88903797A 1997-07-07 1997-07-07
US08/889,037 1997-07-07

Publications (1)

Publication Number Publication Date
CA2210385A1 true CA2210385A1 (fr) 1999-01-07

Family

ID=25394399

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2210385 Abandoned CA2210385A1 (fr) 1997-07-07 1997-07-22 Utilisation de polyelectrolytes cationiques et de surfactants pour le desencrage de vieux papiers

Country Status (5)

Country Link
JP (1) JP2001509555A (fr)
KR (1) KR20010021612A (fr)
AU (1) AU7829098A (fr)
CA (1) CA2210385A1 (fr)
WO (1) WO1999002770A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046744B1 (fr) * 1999-03-22 2004-08-11 Kalkfabrik Netstal AG Procédé pour séparer de l'encre de vieux papier
JP4553519B2 (ja) * 2001-05-31 2010-09-29 ハイモ株式会社 古紙排水の処理方法
US6666950B2 (en) 2001-11-28 2003-12-23 Basf Ag Process for deinking paper using a triglyceride
FR2904011B1 (fr) * 2006-07-21 2011-03-18 Ct Tech De L Ind Du Papier Carton Et Cellulose Procede de reduction de la teneur en tensioactifs au cours du desencrage du papier et dispositif de desencrage mettant en oeuvre ce procede.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5387318A (en) * 1991-04-25 1995-02-07 Betz Laboratories, Inc. Water soluble graft copolymers for laser print deinking loop clarification
US5681480A (en) * 1991-08-02 1997-10-28 Allied Colloids Limited Dewatering of aqueous suspensions
US5415733A (en) * 1993-05-27 1995-05-16 High Point Chemical Corp. Method of removing hydrophilic ink

Also Published As

Publication number Publication date
JP2001509555A (ja) 2001-07-24
KR20010021612A (ko) 2001-03-15
AU7829098A (en) 1999-02-08
WO1999002770A1 (fr) 1999-01-21

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Legal Events

Date Code Title Description
FZDE Dead