EP0663030A4 - IMPROVED BLEACHING OF HIGH CONSISTENCY pulp. - Google Patents

IMPROVED BLEACHING OF HIGH CONSISTENCY pulp.

Info

Publication number
EP0663030A4
EP0663030A4 EP93922772A EP93922772A EP0663030A4 EP 0663030 A4 EP0663030 A4 EP 0663030A4 EP 93922772 A EP93922772 A EP 93922772A EP 93922772 A EP93922772 A EP 93922772A EP 0663030 A4 EP0663030 A4 EP 0663030A4
Authority
EP
European Patent Office
Prior art keywords
pulp
bleaching
lignocellulosic
brightness
specific surface
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.)
Withdrawn
Application number
EP93922772A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0663030A1 (en
Inventor
Thomas P Gandek
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 Patent Holding Inc
Original Assignee
Union Camp Patent Holding 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 Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc
Publication of EP0663030A1 publication Critical patent/EP0663030A1/en
Publication of EP0663030A4 publication Critical patent/EP0663030A4/en
Withdrawn legal-status Critical Current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
    • 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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
EP93922772A 1992-10-01 1993-09-28 IMPROVED BLEACHING OF HIGH CONSISTENCY pulp. Withdrawn EP0663030A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US95500192A 1992-10-01 1992-10-01
US955001 1992-10-01
US2754493A 1993-03-05 1993-03-05
PCT/US1993/009230 WO1994008087A1 (en) 1992-10-01 1993-09-28 Improved bleaching of high consistency lignocellulosic pulp
US27544 2001-12-21

Publications (2)

Publication Number Publication Date
EP0663030A1 EP0663030A1 (en) 1995-07-19
EP0663030A4 true EP0663030A4 (en) 1995-12-06

Family

ID=26702594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93922772A Withdrawn EP0663030A4 (en) 1992-10-01 1993-09-28 IMPROVED BLEACHING OF HIGH CONSISTENCY pulp.

Country Status (14)

Country Link
EP (1) EP0663030A4 (ko)
JP (1) JPH08502327A (ko)
KR (1) KR950703683A (ko)
CN (1) CN1104274A (ko)
AU (1) AU671159B2 (ko)
BR (1) BR9307135A (ko)
CA (1) CA2144433A1 (ko)
FI (1) FI951533A0 (ko)
ID (1) ID925B (ko)
MY (1) MY110586A (ko)
NO (1) NO951190L (ko)
NZ (1) NZ256783A (ko)
RU (1) RU2115780C1 (ko)
WO (1) WO1994008087A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002697A1 (en) * 1994-07-14 1996-02-01 Union Camp Patent Holding, Inc. Improved bleaching of high consistency lignocellulosic pulp
US5667974A (en) * 1995-06-07 1997-09-16 Abbott Laboratories Method for detecting nucleic acid sequences using competitive amplification
CN100345955C (zh) * 2006-02-25 2007-10-31 武汉市神虫液蜂蜜酒业有限公司 纯蜂蜜酒的酿造方法
EP3512996B1 (en) * 2016-09-14 2021-07-28 FPInnovations Method of transforming high consistency pulp fibers into pre-dispersed semi-dry and dry fibrous materials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018145A1 (en) * 1990-05-17 1991-11-28 Union Camp Corporation Environmentally improved process for bleaching lignocellulosic materials

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
NO131996C (ko) * 1973-10-04 1975-09-03 Papirind Forskningsinst
NO142091C (no) * 1977-10-17 1980-06-25 Myrens Verksted As Fremgangsmaate ved ozonbehandling av raffinoermekanisk og termomekanisk masse.
SE419603B (sv) * 1979-11-27 1981-08-17 Kamyr Ab Apparat for inblandning av behandlingsmedel i suspensioner
EP0492040A1 (en) * 1990-12-21 1992-07-01 Kamyr, Inc. Tumbling ozone reactor for paper pulp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018145A1 (en) * 1990-05-17 1991-11-28 Union Camp Corporation Environmentally improved process for bleaching lignocellulosic materials

Also Published As

Publication number Publication date
FI951533A (fi) 1995-03-31
NO951190D0 (no) 1995-03-28
AU5166593A (en) 1994-04-26
WO1994008087A1 (en) 1994-04-14
KR950703683A (ko) 1995-09-20
NO951190L (no) 1995-03-28
RU95110663A (ru) 1997-04-10
MY110586A (en) 1998-08-29
EP0663030A1 (en) 1995-07-19
FI951533A0 (fi) 1995-03-31
ID925B (id) 1996-09-16
BR9307135A (pt) 1999-07-27
NZ256783A (en) 1996-08-27
JPH08502327A (ja) 1996-03-12
AU671159B2 (en) 1996-08-15
RU2115780C1 (ru) 1998-07-20
CA2144433A1 (en) 1994-04-14
CN1104274A (zh) 1995-06-28

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19950322

AK Designated contracting states

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A4 Supplementary search report drawn up and despatched

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18W Application withdrawn

Withdrawal date: 19990125