FI50644C - Selluloosamassan valkaisu kaasufaasissa kloorimonoksidilla. - Google Patents

Selluloosamassan valkaisu kaasufaasissa kloorimonoksidilla.

Info

Publication number
FI50644C
FI50644C FI693632A FI363269A FI50644C FI 50644 C FI50644 C FI 50644C FI 693632 A FI693632 A FI 693632A FI 363269 A FI363269 A FI 363269A FI 50644 C FI50644 C FI 50644C
Authority
FI
Finland
Prior art keywords
bleaching
gas phase
cellulose pulp
chlorine monoxide
monoxide
Prior art date
Application number
FI693632A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI50644B (pm
Inventor
Henry I Bolker
Norman Liebergott
Original Assignee
Pulp Paper Res Inst
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 Pulp Paper Res Inst filed Critical Pulp Paper Res Inst
Application granted granted Critical
Publication of FI50644B publication Critical patent/FI50644B/fi
Publication of FI50644C publication Critical patent/FI50644C/fi

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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/123—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with Cl2O

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI693632A 1968-12-16 1969-12-15 Selluloosamassan valkaisu kaasufaasissa kloorimonoksidilla. FI50644C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB59738/68A GB1242709A (en) 1968-12-16 1968-12-16 Bleaching of cellulosic pulp

Publications (2)

Publication Number Publication Date
FI50644B FI50644B (pm) 1976-02-02
FI50644C true FI50644C (fi) 1976-05-10

Family

ID=10484328

Family Applications (1)

Application Number Title Priority Date Filing Date
FI693632A FI50644C (fi) 1968-12-16 1969-12-15 Selluloosamassan valkaisu kaasufaasissa kloorimonoksidilla.

Country Status (5)

Country Link
US (1) US3619349A (pm)
FI (1) FI50644C (pm)
GB (1) GB1242709A (pm)
NO (1) NO127544B (pm)
SE (1) SE365831B (pm)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA989112A (en) * 1972-05-30 1976-05-18 Pulp And Paper Research Institute Of Canada Bleaching of textiles with chlorine monoxide
US3907632A (en) * 1973-10-23 1975-09-23 Ppg Industries Inc Bleaching cellulosic pulps with gaseous chlorine at a pH of 7 to 10 in a multistage bleaching process
US3990843A (en) * 1974-08-05 1976-11-09 The Dow Chemical Company Method for bleaching raw cotton and cotton textiles
US20030056295A1 (en) * 2001-06-06 2003-03-27 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
WO2012097380A1 (en) * 2011-01-14 2012-07-19 The Red Triangle, LLC Compositions and methods for bamboo pulping
CN112934205A (zh) * 2021-02-24 2021-06-11 上海交通大学 基于黄芪废渣的多孔水凝胶吸附剂的制备方法及其应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2178696A (en) * 1938-02-03 1939-11-07 Pittsburgh Plate Glass Co Material treatment
US3074842A (en) * 1959-07-24 1963-01-22 Dorr Oliver Inc Treatment of unbleached cellulose pulps

Also Published As

Publication number Publication date
SE365831B (pm) 1974-04-01
GB1242709A (en) 1971-08-11
NO127544B (pm) 1973-07-09
FI50644B (pm) 1976-02-02
US3619349A (en) 1971-11-09

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