CA2048618C - A method of de-inking waste paper materials - Google Patents

A method of de-inking waste paper materials Download PDF

Info

Publication number
CA2048618C
CA2048618C CA 2048618 CA2048618A CA2048618C CA 2048618 C CA2048618 C CA 2048618C CA 2048618 CA2048618 CA 2048618 CA 2048618 A CA2048618 A CA 2048618A CA 2048618 C CA2048618 C CA 2048618C
Authority
CA
Canada
Prior art keywords
weight
ink
approximately
stock
fibrous stock
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 2048618
Other languages
English (en)
French (fr)
Other versions
CA2048618A1 (en
Inventor
Stanley Blum
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.)
Woodfree Ltd
Original Assignee
Woodfree Ltd
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 Woodfree Ltd filed Critical Woodfree Ltd
Priority claimed from PCT/GB1990/000385 external-priority patent/WO1990010749A1/en
Publication of CA2048618A1 publication Critical patent/CA2048618A1/en
Application granted granted Critical
Publication of CA2048618C publication Critical patent/CA2048618C/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
    • 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
    • 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

  • Paper (AREA)
  • Treatment Of Sludge (AREA)
CA 2048618 1989-03-15 1990-03-14 A method of de-inking waste paper materials Expired - Fee Related CA2048618C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8905942.2 1989-03-15
GB8905942A GB8905942D0 (en) 1989-03-15 1989-03-15 A method of de-inking waste paper materials
PCT/GB1990/000385 WO1990010749A1 (en) 1989-03-15 1990-03-14 Method of de-inking waste paper materials

Publications (2)

Publication Number Publication Date
CA2048618A1 CA2048618A1 (en) 1990-09-16
CA2048618C true CA2048618C (en) 2002-04-23

Family

ID=10653370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2048618 Expired - Fee Related CA2048618C (en) 1989-03-15 1990-03-14 A method of de-inking waste paper materials

Country Status (16)

Country Link
KR (1) KR0151110B1 (OSRAM)
BG (1) BG95308A (OSRAM)
BR (1) BR9007224A (OSRAM)
CA (1) CA2048618C (OSRAM)
DE (1) DE69017205T2 (OSRAM)
FI (1) FI914276A0 (OSRAM)
GB (1) GB8905942D0 (OSRAM)
IN (1) IN174412B (OSRAM)
LT (1) LTIP1852A (OSRAM)
MC (1) MC2179A1 (OSRAM)
MW (1) MW5091A1 (OSRAM)
MY (1) MY107139A (OSRAM)
NZ (1) NZ232892A (OSRAM)
PH (1) PH27030A (OSRAM)
PT (1) PT93425B (OSRAM)
ZA (1) ZA901713B (OSRAM)

Also Published As

Publication number Publication date
DE69017205D1 (de) 1995-03-30
LTIP1852A (en) 1995-08-25
MY107139A (en) 1995-09-30
CA2048618A1 (en) 1990-09-16
KR920701565A (ko) 1992-08-12
BG95308A (bg) 1993-12-24
KR0151110B1 (ko) 1999-05-15
FI914276A7 (fi) 1991-09-11
MC2179A1 (fr) 1992-05-22
PH27030A (en) 1993-02-01
PT93425B (pt) 1996-09-30
FI914276A0 (fi) 1991-09-11
IN174412B (OSRAM) 1994-12-03
MW5091A1 (en) 1993-02-10
DE69017205T2 (de) 1995-10-19
GB8905942D0 (en) 1989-04-26
NZ232892A (en) 1991-11-26
ZA901713B (en) 1990-12-28
BR9007224A (pt) 1992-02-18
PT93425A (pt) 1990-11-07

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