DE3572017D1 - A process for producing a partially oxidized, concentrated, spent pulping liquor - Google Patents

A process for producing a partially oxidized, concentrated, spent pulping liquor

Info

Publication number
DE3572017D1
DE3572017D1 DE8585901795T DE3572017T DE3572017D1 DE 3572017 D1 DE3572017 D1 DE 3572017D1 DE 8585901795 T DE8585901795 T DE 8585901795T DE 3572017 T DE3572017 T DE 3572017T DE 3572017 D1 DE3572017 D1 DE 3572017D1
Authority
DE
Germany
Prior art keywords
concentrated
spent
pulping liquor
spent pulping
liquor
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
Application number
DE8585901795T
Other languages
English (en)
Inventor
Robert J Spannuth
Robert A Damon
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.)
Georgia Pacific Consumer Products LP
Original Assignee
James River II Inc
James River Paper Co 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 James River II Inc, James River Paper Co Inc filed Critical James River II Inc
Application granted granted Critical
Publication of DE3572017D1 publication Critical patent/DE3572017D1/de
Expired 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Peptides Or Proteins (AREA)
DE8585901795T 1984-03-21 1985-03-20 A process for producing a partially oxidized, concentrated, spent pulping liquor Expired DE3572017D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59203284A 1984-03-21 1984-03-21
PCT/US1985/000468 WO1985004202A1 (en) 1984-03-21 1985-03-20 A process for producing a partially oxidized, concentrated, spent pulping liquor

Publications (1)

Publication Number Publication Date
DE3572017D1 true DE3572017D1 (en) 1989-09-07

Family

ID=24368994

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585901795T Expired DE3572017D1 (en) 1984-03-21 1985-03-20 A process for producing a partially oxidized, concentrated, spent pulping liquor

Country Status (9)

Country Link
US (1) US4718978A (de)
EP (1) EP0179803B1 (de)
JP (1) JPS61502064A (de)
AT (1) ATE45197T1 (de)
CA (1) CA1247809A (de)
DE (1) DE3572017D1 (de)
FI (1) FI81138C (de)
NO (1) NO168720C (de)
WO (1) WO1985004202A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7361687A (en) * 1986-06-23 1987-12-24 Zimpro Inc. Improvement in treatment of alkaline black liquor
FI85515C (fi) * 1990-07-09 1996-04-10 Ahlstroem Oy Foerfarande foer reglering av en sulfatcellulosafabriks sulfiditet
US6168685B1 (en) * 1992-01-10 2001-01-02 Praxair Canada Inc. Process FOR oxidation of concentrated black liquor
SE501613C2 (sv) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Sätt vid integrering av blekning och återvinning vid framställning av massa
US5472568A (en) * 1993-09-07 1995-12-05 Air Products And Chemicals, Inc. Method for controlling the viscosity of Kraft black liquor
SE9303762L (sv) * 1993-11-15 1995-05-16 Eka Nobel Ab Sätt att rena processvatten från massaframställning
US6036355A (en) * 1997-07-14 2000-03-14 Quantum Technologies, Inc. Reactor mixing assembly
US20030116290A1 (en) * 2001-12-20 2003-06-26 3M Innovative Properties Company Continuous process for controlled evaporation of black liquor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714911A (en) * 1971-03-10 1973-02-06 Sterling Drug Inc Method of treatment of alkaline pulping black liquors by wet air oxidation
US3873414A (en) * 1971-10-25 1975-03-25 Air Liquide Process for the treatment of black liquor of cellulosic pulp wherein oxidation is performed both before and after black liquor concentration
JPS52132102A (en) * 1976-04-03 1977-11-05 Oji Paper Co Process for reducing offensive smell in waste gas from recovery boiler
US4135968A (en) * 1976-04-09 1979-01-23 Weyerhaeuser Company Spent liquor treatment
US4441959A (en) * 1982-07-21 1984-04-10 International Paper Company Recovery of heat and chemical values from spent pulping liquors
SE8400904L (sv) * 1984-02-20 1985-08-21 Goetaverken Energy Syst Ab Forfarande och anordning for senkning av viskositeten hos svartlut

Also Published As

Publication number Publication date
NO854567L (no) 1985-11-15
NO168720C (no) 1992-03-25
NO168720B (no) 1991-12-16
FI854579A0 (fi) 1985-11-20
CA1247809A (en) 1989-01-03
FI81138B (fi) 1990-05-31
EP0179803A1 (de) 1986-05-07
EP0179803A4 (de) 1986-07-31
FI854579A (fi) 1985-11-20
JPS61502064A (ja) 1986-09-18
US4718978A (en) 1988-01-12
FI81138C (fi) 1990-09-10
ATE45197T1 (de) 1989-08-15
WO1985004202A1 (en) 1985-09-26
EP0179803B1 (de) 1989-08-02

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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