FI115226B - Menetelmä paineistettua peroksidivalkaisua varten - Google Patents

Menetelmä paineistettua peroksidivalkaisua varten Download PDF

Info

Publication number
FI115226B
FI115226B FI972375A FI972375A FI115226B FI 115226 B FI115226 B FI 115226B FI 972375 A FI972375 A FI 972375A FI 972375 A FI972375 A FI 972375A FI 115226 B FI115226 B FI 115226B
Authority
FI
Finland
Prior art keywords
vessel
valve
pressure
bleaching
pulp
Prior art date
Application number
FI972375A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI972375A0 (fi
FI972375A (fi
Inventor
Torbjoern Carlsson
Lennart Gustavsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Publication of FI972375A0 publication Critical patent/FI972375A0/fi
Publication of FI972375A publication Critical patent/FI972375A/fi
Application granted granted Critical
Publication of FI115226B publication Critical patent/FI115226B/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
FI972375A 1994-12-08 1997-06-05 Menetelmä paineistettua peroksidivalkaisua varten FI115226B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9404299 1994-12-08
SE9404299A SE506809C2 (sv) 1994-12-08 1994-12-08 Metod för att säkert bedriva trycksatt peroxidblekning
PCT/SE1995/001462 WO1996017997A1 (en) 1994-12-08 1995-12-06 Method for pressurized peroxide bleaching
SE9501462 1995-12-06

Publications (3)

Publication Number Publication Date
FI972375A0 FI972375A0 (fi) 1997-06-05
FI972375A FI972375A (fi) 1997-06-05
FI115226B true FI115226B (fi) 2005-03-31

Family

ID=20396285

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972375A FI115226B (fi) 1994-12-08 1997-06-05 Menetelmä paineistettua peroksidivalkaisua varten

Country Status (12)

Country Link
US (1) US5858170A ( )
EP (1) EP0796369B1 ( )
JP (1) JPH10510331A ( )
CN (1) CN1070961C ( )
AT (1) ATE201066T1 ( )
AU (1) AU4276196A ( )
BR (1) BR9509894A ( )
CA (1) CA2205912A1 ( )
DE (1) DE69520889T2 ( )
FI (1) FI115226B ( )
SE (1) SE506809C2 ( )
WO (1) WO1996017997A1 ( )

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954066A (en) * 1995-01-25 1999-09-21 Kvaerner Pulping Ab Method for controlling chemical reaction
EP0981663A1 (en) * 1997-04-30 2000-03-01 Kvaerner Pulping Ab Outlet arrangement in a pressure vessel for the bleaching of pulp
US6059927A (en) * 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
WO2009050882A1 (ja) * 2007-10-17 2009-04-23 Nippon Steel Chemical Co., Ltd. 可溶化リグニン、糖類原料および単糖類原料の製造方法ならびに可溶化リグニン

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822179A (en) * 1969-02-27 1974-07-02 N Chari Method and apparatus for optimizing steam consumption of continuous digester
US3607117A (en) * 1969-07-28 1971-09-21 Rust Engineering Co Black liquor recovery boiler combustion and safety control system
US3622441A (en) * 1969-10-07 1971-11-23 Improved Machinery Inc Multiple discharge stock treatment apparatus and method
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US4177105A (en) * 1973-05-22 1979-12-04 Kamyr, Incorporated Apparatus for delignifying and bleaching cellulose pulp
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp
US4353384A (en) * 1978-12-29 1982-10-12 El Paso Polyolefins Company High pressure tubular reactor apparatus
US4496099A (en) * 1984-03-05 1985-01-29 Garland Bull Low pressure heating system
US4748004A (en) * 1986-02-13 1988-05-31 Goodspeed Byron Lester Apparatus for cleaning air ports of a chemical recovery furnace
US4967840A (en) * 1990-01-18 1990-11-06 Resource Production Management, Inc. Process and apparatus for forming a gaseous stream for introduction into hydrocarbon bearing formations and gas generator therefor
US5364505A (en) * 1992-12-07 1994-11-15 Kamyr, Inc. Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck

Also Published As

Publication number Publication date
EP0796369B1 (en) 2001-05-09
ATE201066T1 (de) 2001-05-15
DE69520889T2 (de) 2001-11-29
CA2205912A1 (en) 1996-06-13
US5858170A (en) 1999-01-12
SE506809C2 (sv) 1998-02-16
WO1996017997A1 (en) 1996-06-13
EP0796369A2 (en) 1997-09-24
DE69520889D1 (de) 2001-06-13
SE9404299D0 (sv) 1994-12-08
AU4276196A (en) 1996-06-26
FI972375A0 (fi) 1997-06-05
CN1169170A (zh) 1997-12-31
BR9509894A (pt) 1997-12-30
CN1070961C (zh) 2001-09-12
SE9404299L (sv) 1996-06-09
JPH10510331A (ja) 1998-10-06
FI972375A (fi) 1997-06-05

Similar Documents

Publication Publication Date Title
JPH07280980A (ja) 原子炉の除圧装置
FI115226B (fi) Menetelmä paineistettua peroksidivalkaisua varten
EP0511016B1 (en) Emergency coolant accumulator for nuclear reactor
JPH0659075A (ja) 原子炉
RU2666346C2 (ru) Пассивная система снижения давления для емкостей под давлением в ядерных реакторах
WO2004109417A2 (en) Mechanically operated kill agent injection safety system and method to stop a runaway chemical reaction
US5364505A (en) Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
US6007680A (en) Apparatus for safely conducting pressurized peroxide bleaching
US5954066A (en) Method for controlling chemical reaction
US10994894B2 (en) Liquid storage tank protection system and method
JP3903127B2 (ja) 原子力発電所の原子炉からの余熱除去の保護方法及び装置
JP3727042B2 (ja) 圧抜き機構を有するプリコート式ろ過脱塩装置
JP2001316992A (ja) セルロース繊維材料の処理槽への供給方法
SE506808C2 (sv) Metod för att säkert bedriva trycksatt peroxidblekning
US20020185176A1 (en) Pressure vessel for a pulp mill having overflow chute
JPS60205286A (ja) 制御棒駆動水圧装置
GB2576427A (en) Closed-loop pipework system de-aeration apparatus
JPH0395301A (ja) 緊急時の蒸気圧並びに水位制御装置を備えた脱気器
SU857005A1 (ru) Термический деаэратор
JPS6414006A (en) Temperature control instrument of mold
KR101106222B1 (ko) 펄프 생산 공정 중 표백제 공급 장치
JPH06174878A (ja) 制御棒駆動装置
ATE69785T1 (de) Fluessigkeitsversorgungsanlage.
JPH1019239A (ja) 燃料スラリノズルの先導水の詰まり検出方法
JPS59111098A (ja) 原子炉格納容器スプレイ冷却装置

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 115226

Country of ref document: FI