CA1000540A - Bleaching tower for gas phase bleaching - Google Patents

Bleaching tower for gas phase bleaching

Info

Publication number
CA1000540A
CA1000540A CA189,464A CA189464A CA1000540A CA 1000540 A CA1000540 A CA 1000540A CA 189464 A CA189464 A CA 189464A CA 1000540 A CA1000540 A CA 1000540A
Authority
CA
Canada
Prior art keywords
bleaching
gas phase
tower
bleaching tower
phase bleaching
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
CA189,464A
Other languages
English (en)
Other versions
CA189464S (en
Inventor
Bengt E. Pettersson
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.)
Valmet AB
Original Assignee
Sunds 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 Sunds AB filed Critical Sunds AB
Application granted granted Critical
Publication of CA1000540A publication Critical patent/CA1000540A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/82—Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3213—Disposition of the drive at the lower side of the axis, e.g. driving the stirrer from the bottom of a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA189,464A 1973-01-05 1974-01-04 Bleaching tower for gas phase bleaching Expired CA1000540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7300147A SE369531B (no) 1973-01-05 1973-01-05

Publications (1)

Publication Number Publication Date
CA1000540A true CA1000540A (en) 1976-11-30

Family

ID=20316250

Family Applications (1)

Application Number Title Priority Date Filing Date
CA189,464A Expired CA1000540A (en) 1973-01-05 1974-01-04 Bleaching tower for gas phase bleaching

Country Status (8)

Country Link
US (1) US4085002A (no)
JP (1) JPS5720438B2 (no)
CA (1) CA1000540A (no)
DE (1) DE2400308C2 (no)
FI (1) FI61054C (no)
FR (1) FR2213372B1 (no)
NO (1) NO136581C (no)
SE (1) SE369531B (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US4141784A (en) * 1977-05-02 1979-02-27 Macmillan Bloedel Limited Method and apparatus for controlling wood chip digester level
AT387995B (de) * 1987-06-12 1989-04-10 Andritz Ag Maschf Austragvorrichtung
AT394738B (de) * 1990-09-03 1992-06-10 Andritz Ag Maschf Verfahren und vorrichtung zum austragen eines mediums aus einem behaelter
US6096170A (en) * 1997-04-30 2000-08-01 Kvaerner Pulping Aktiebolag Pressurized peroxide bleaching vessel having a rotatable scraper arm and cleaning device
JP2020203256A (ja) * 2019-06-18 2020-12-24 セイコーエプソン株式会社 攪拌装置
CN113930992A (zh) * 2021-10-29 2022-01-14 泰安天兴木业科技有限公司 一种用于非常规生产针叶纤维素的漂白工艺及其设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938824A (en) * 1957-01-22 1960-05-31 Kamyr Ab Digestion apparatus and method
US3434920A (en) * 1965-10-07 1969-03-25 Frank B K Green Apparatus for continuous digesting
US3519532A (en) * 1967-04-17 1970-07-07 Black Clawson Co Continuous digester discharger containing automatic temperature and level sensing means and method thereof
SE318180B (no) * 1967-05-16 1969-12-01 Kamyr Ab
US3586600A (en) * 1967-07-27 1971-06-22 Improved Machinery Inc Continuous digesting apparatus
US3785577A (en) * 1972-07-18 1974-01-15 Improved Machinery Inc Apparatus for the gaseous reaction of material

Also Published As

Publication number Publication date
FI61054B (fi) 1982-01-29
SE369531B (no) 1974-09-02
JPS49100304A (no) 1974-09-21
US4085002A (en) 1978-04-18
FI61054C (fi) 1982-05-10
NO136581B (no) 1977-06-20
DE2400308A1 (de) 1974-07-11
DE2400308C2 (de) 1983-07-21
NO136581C (no) 1977-09-28
FR2213372B1 (no) 1978-11-10
JPS5720438B2 (no) 1982-04-28
FR2213372A1 (no) 1974-08-02

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