FR1137749A - Process for the preparation of peroxide solutions specially useful for the bleaching of cellulosic materials - Google Patents

Process for the preparation of peroxide solutions specially useful for the bleaching of cellulosic materials

Info

Publication number
FR1137749A
FR1137749A FR1137749DA FR1137749A FR 1137749 A FR1137749 A FR 1137749A FR 1137749D A FR1137749D A FR 1137749DA FR 1137749 A FR1137749 A FR 1137749A
Authority
FR
France
Prior art keywords
bleaching
preparation
cellulosic materials
peroxide solutions
specially useful
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
Other languages
French (fr)
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.)
Kymmene Oy
Original Assignee
Kymin Osakeyhtio Kymmene AB
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 Kymin Osakeyhtio Kymmene AB filed Critical Kymin Osakeyhtio Kymmene AB
Application granted granted Critical
Publication of FR1137749A publication Critical patent/FR1137749A/en
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
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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
    • C01B15/03—Preparation from inorganic peroxy compounds, e.g. from peroxysulfates
    • C01B15/032—Preparation from inorganic peroxy compounds, e.g. from peroxysulfates from metal peroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
FR1137749D 1954-11-05 1955-11-04 Process for the preparation of peroxide solutions specially useful for the bleaching of cellulosic materials Expired FR1137749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI1137749X 1954-11-05

Publications (1)

Publication Number Publication Date
FR1137749A true FR1137749A (en) 1957-06-03

Family

ID=8556843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1137749D Expired FR1137749A (en) 1954-11-05 1955-11-04 Process for the preparation of peroxide solutions specially useful for the bleaching of cellulosic materials

Country Status (1)

Country Link
FR (1) FR1137749A (en)

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