FI970105A - Suuritehoiset astiat lignoselluloosamateriaalin, selluloosamateriaalinja synteettisen polymeerikuitumateriaalin valkaisemiseksi - Google Patents

Suuritehoiset astiat lignoselluloosamateriaalin, selluloosamateriaalinja synteettisen polymeerikuitumateriaalin valkaisemiseksi Download PDF

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Publication number
FI970105A
FI970105A FI970105A FI970105A FI970105A FI 970105 A FI970105 A FI 970105A FI 970105 A FI970105 A FI 970105A FI 970105 A FI970105 A FI 970105A FI 970105 A FI970105 A FI 970105A
Authority
FI
Finland
Prior art keywords
high performance
synthetic polymeric
polymeric fibrous
cellulosic
bleaching lignocellulosic
Prior art date
Application number
FI970105A
Other languages
English (en)
Swedish (sv)
Other versions
FI970105A0 (fi
Inventor
Brian P Roy
Lierop Barbara Van
Richard M Berry
Donald E Bardsley
Original Assignee
Beloit Technologies Inc
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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of FI970105A0 publication Critical patent/FI970105A0/fi
Publication of FI970105A publication Critical patent/FI970105A/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/06—Spark arresters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2270/00—Mixing air with exhaust gases
    • F01N2270/02—Mixing air with exhaust gases for cooling exhaust gases or the apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2270/00—Mixing air with exhaust gases
    • F01N2270/08—Mixing air with exhaust gases for evacuation of exhaust gases, e.g. in tail-pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/06—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for extinguishing sparks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Nonwoven Fabrics (AREA)
FI970105A 1994-07-11 1997-01-10 Suuritehoiset astiat lignoselluloosamateriaalin, selluloosamateriaalinja synteettisen polymeerikuitumateriaalin valkaisemiseksi FI970105A (fi)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27353994A 1994-07-11 1994-07-11
US40234295A 1995-03-10 1995-03-10
PCT/US1995/008141 WO1996001921A1 (en) 1994-07-11 1995-06-29 High efficiency vessels for bleaching lignocellulosic, cellulosic and synthetic polymeric fibrous materials

Publications (2)

Publication Number Publication Date
FI970105A0 FI970105A0 (fi) 1997-01-10
FI970105A true FI970105A (fi) 1997-03-07

Family

ID=26956276

Family Applications (1)

Application Number Title Priority Date Filing Date
FI970105A FI970105A (fi) 1994-07-11 1997-01-10 Suuritehoiset astiat lignoselluloosamateriaalin, selluloosamateriaalinja synteettisen polymeerikuitumateriaalin valkaisemiseksi

Country Status (9)

Country Link
EP (1) EP0797702A1 (fi)
JP (1) JP2926518B2 (fi)
AR (2) AR000152A1 (fi)
BR (1) BR9508387A (fi)
CA (1) CA2194882A1 (fi)
FI (1) FI970105A (fi)
RU (1) RU2152467C1 (fi)
WO (1) WO1996001921A1 (fi)
ZA (1) ZA956507B (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2910027B1 (fr) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature
CL2009000939A1 (es) 2008-04-30 2010-10-01 Evonik Degussa Gmbh Proceso para recuperar molibdato o tungstato desde una solucion acuosa que comprende a) contactar la solucion con un material portador inorganico cationizado e insoluble en agua, b) separar el material portador de molibdato o tungstato, c) contactarlo con una solucion acuosa con un ph entre 6 a 14 y d) separar el material saturado.
DE102010001001A1 (de) * 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Verfahren zur Delignifizierung und Bleiche von Zellstoff
ES2724323T3 (es) 2013-11-06 2019-09-10 Evonik Degussa Gmbh Procedimiento para la deslignificación y el blanqueo de pasta de celulosa

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
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
EP0797702A1 (en) 1997-10-01
AR001152A1 (es) 1997-09-24
ZA956507B (en) 1996-05-29
WO1996001921A1 (en) 1996-01-25
JP2926518B2 (ja) 1999-07-28
AR000152A1 (es) 1997-05-21
CA2194882A1 (en) 1996-01-25
RU2152467C1 (ru) 2000-07-10
BR9508387A (pt) 1997-11-25
FI970105A0 (fi) 1997-01-10
JPH09508946A (ja) 1997-09-09

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