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SE9301940L - Preparation of bleaching chemicals for cellulose pulp - Google Patents

Preparation of bleaching chemicals for cellulose pulp

Info

Publication number
SE9301940L
SE9301940L SE9301940A SE9301940A SE9301940L SE 9301940 L SE9301940 L SE 9301940L SE 9301940 A SE9301940 A SE 9301940A SE 9301940 A SE9301940 A SE 9301940A SE 9301940 L SE9301940 L SE 9301940L
Authority
SE
Sweden
Prior art keywords
hydrogen
produced
pulp
cellulose pulp
preparation
Prior art date
Application number
SE9301940A
Other languages
Swedish (sv)
Other versions
SE9301940D0 (en
Inventor
Kaj Henricson
Jaana Suokas
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE9301940D0 publication Critical patent/SE9301940D0/en
Publication of SE9301940L publication Critical patent/SE9301940L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01—Hydrogen peroxide
    • C01B15/022—Preparation from organic compounds
    • C01B15/023—Preparation from organic compounds by the alkyl-anthraquinone process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Hydrogen peroxide for cellulose pulp bleaching is produced directly at a pulp mill without electrolysis. Hydrogen is produced from black liquor from the pulp mill pulping process, and that hydrogen is then reacted (e.g. with oxygen and anthraquinone) to produce hydrogen peroxide, which is in turn used to bleach pulp in a P stage directly on site. The hydrogen is produced from the black liquor by heat treatment to produce an off-gas containing DMS, and other hydrocarbons. Hydrogen can be produced from the off gas in a number of ways, including by reacting it with a melt in a recovery boiler, or ash from a recovery boiler.
SE9301940A 1992-06-10 1993-06-07 Preparation of bleaching chemicals for cellulose pulp SE9301940L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89536692A 1992-06-10 1992-06-10

Publications (2)

Publication Number Publication Date
SE9301940D0 SE9301940D0 (en) 1993-06-07
SE9301940L true SE9301940L (en) 1993-12-11

Family

ID=25404411

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9301940A SE9301940L (en) 1992-06-10 1993-06-07 Preparation of bleaching chemicals for cellulose pulp

Country Status (4)

Country Link
JP (1) JPH06108391A (en)
CA (1) CA2098062A1 (en)
FI (1) FI932620L (en)
SE (1) SE9301940L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730984B1 (en) * 1995-02-28 1997-05-23 Chemoxal Sa INSTALLATION FOR SUPPLYING HYDROGEN PEROXIDE TO A TREATMENT UNIT OF AN INDUSTRIAL SITE
FR2746091B1 (en) 1996-03-18 1998-04-30 PROCESS AND PLANT FOR PROVIDING VARIABLE FLOW HYDROGEN PEROXIDE
FR2940801B1 (en) * 2009-01-06 2012-08-17 Arkema France PROCESS FOR THE PRODUCTION OF A METHYL METHACRYLATE DERIVED FROM BIOMASS

Also Published As

Publication number Publication date
FI932620A0 (en) 1993-06-09
CA2098062A1 (en) 1993-12-11
JPH06108391A (en) 1994-04-19
FI932620A7 (en) 1993-12-11
FI932620L (en) 1993-12-11
SE9301940D0 (en) 1993-06-07

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