BR9711890A - Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa. - Google Patents

Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa.

Info

Publication number
BR9711890A
BR9711890A BR9711890-7A BR9711890A BR9711890A BR 9711890 A BR9711890 A BR 9711890A BR 9711890 A BR9711890 A BR 9711890A BR 9711890 A BR9711890 A BR 9711890A
Authority
BR
Brazil
Prior art keywords
steaming
high pressure
pulp
carried out
less
Prior art date
Application number
BR9711890-7A
Other languages
English (en)
Inventor
Robert J Prough
Original Assignee
Ahlstrom Machinery 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24929257&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9711890(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ahlstrom Machinery Inc filed Critical Ahlstrom Machinery Inc
Publication of BR9711890A publication Critical patent/BR9711890A/pt

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • 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
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices

Landscapes

  • Paper (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO E APARELHO PARA FORMAçãO DE POLPA COM AQUECIMENTO CONTROLADO PARA MELHORAR A DESLIGNIFICAçãO E A RESISTêNCIA DA POLPA<D>". Passagem por vapor e formação de lama a baixa temperatura de cavacos de madeira resulta em melhoria significativa no tratamento, os cavacos sendo mantidos a uma temperatura abaixo de 110‹C (mais desejavelmente a cerca de 105‹C ou menos e mais desejavelmente a cerca de 100‹C menos) até realmente aquecido até uma temperatura de cozimento. A passagem por vapor pode ser realizada utilizando-se uma tremonha vertical para cavacos com uma convergência dimensional e saída lateral, ou um vaso horizontal para passagem por vapor, o dispositivo para passagem por vapor conectado a um alimentador de alta pressão. Uma bomba que tem o NPSHR menor que NPSHA pode ser utilizada para trazer lama para o interior do alimentador de alta pressão a partir do dispositivo de passagem por vapor, ou uma bomba pode ser colocada entre o dispositivo para passagem por vapor e o alimentador de alta pressão, para forçar lama para o interior do alimentador de alta pressão através de um conduto que inclui um joelho encurvado. A passagem por vapor é realizada a uma pressão de 0,35kg/cm~ 2~ g (5psig), ou menos, preferivelmente é relizada passagem por vapor substancialmente atmosférica. A polpa produzida tipicamente tem propriedades de resistência no mínimo 10% maiores que a polpa produzida a partir de material que é passado por vapor e tornado lama a temperatura de 110‹ C.
BR9711890-7A 1996-10-10 1997-09-17 Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa. BR9711890A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/729,022 US5736006A (en) 1996-10-10 1996-10-10 Method and apparatus for pulping with controlled heating to improve delignification and pulp strength
PCT/US1997/016427 WO1998015687A1 (en) 1996-10-10 1997-09-17 Method and apparatus for pulping with controlled heating to improve delignification and pulp strength

Publications (1)

Publication Number Publication Date
BR9711890A true BR9711890A (pt) 1999-09-21

Family

ID=24929257

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9711890-7A BR9711890A (pt) 1996-10-10 1997-09-17 Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa.

Country Status (11)

Country Link
US (1) US5736006A (pt)
JP (1) JP3560162B2 (pt)
AU (1) AU725906B2 (pt)
BR (1) BR9711890A (pt)
CA (1) CA2265872C (pt)
ES (1) ES2195672A1 (pt)
FI (1) FI122813B (pt)
ID (1) ID19820A (pt)
SE (1) SE525751C2 (pt)
WO (1) WO1998015687A1 (pt)
ZA (1) ZA979000B (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3562297A (en) * 1997-06-25 1999-01-04 Kvaerner Pulping Ab Method in connection with the pretreatment of comminuted fibrous material
US6120646A (en) * 1998-04-06 2000-09-19 Kvaerner Pulping Ab Feeding system of feeding a cellulose material
US6284095B1 (en) 1999-02-04 2001-09-04 Andritz-Ahlstrom Inc. Minimization of malodorous gas release from a cellulose pulp mill feed system
US6368453B1 (en) * 1999-03-18 2002-04-09 Andritz Inc. Chip feeding to a comminuted cellulosic fibrous material treatment vessel
US6468006B1 (en) 1999-05-11 2002-10-22 Andritz, Inc. High pressure feeder having restriction ramp in high pressure inlet
US20030215293A1 (en) * 1999-05-11 2003-11-20 Andritz Inc. High pressure feeder having smooth pocket in rotor
CA2318027C (en) * 1999-09-13 2008-07-08 Andritz-Ahlstrom Inc. Treating pulp with yield or strength-enhancing additive
US6451172B1 (en) 2000-05-18 2002-09-17 Andritz Inc. In-line drainer enhancements
US6436233B1 (en) 2000-05-18 2002-08-20 Andritz Inc. Feeding cellulose material to a treatment vessel
SE0104247L (sv) * 2001-12-14 2002-10-22 Kvaerner Pulping Tech Förbehandling av flis med färsk vitlut före behandling med svartlut
US20060163393A1 (en) * 2002-09-02 2006-07-27 Sun-Ho Chung Apparatus and method for automatically defibering and extracting kraft pulp from old corrugated cardboard
AU2003291874A1 (en) * 2003-06-03 2005-01-21 David Tarasenko Method for producing pulp and lignin
US7060162B2 (en) * 2003-08-29 2006-06-13 Jack T. Baker Chip bin
SE528571C2 (sv) * 2005-03-23 2006-12-19 Kvaerner Pulping Tech Arrangemang för matning av en flissuspension från ett kärl till en kokare
FI118005B (fi) * 2005-09-27 2007-05-31 Metso Paper Inc Syötin
AT503611B1 (de) * 2006-05-10 2009-05-15 Chemiefaser Lenzing Ag Verfahren zur herstellung eines zellstoffes
AT503610B1 (de) * 2006-05-10 2012-03-15 Chemiefaser Lenzing Ag Verfahren zur herstellung eines zellstoffes
JP5215706B2 (ja) * 2007-08-01 2013-06-19 三井造船株式会社 固気２相物質の押し込み装置
US8651772B2 (en) * 2007-12-20 2014-02-18 General Electric Company Rotary apparatus for use with a gasifier system and methods of using the same
US20100263813A1 (en) * 2009-04-21 2010-10-21 Andritz Inc. Green liquor pretreatment of lignocellulosic material
US8956505B2 (en) * 2009-06-11 2015-02-17 Andritz Technology And Asset Management Gmbh Compact feed system and method for comminuted cellulosic material
JP5796850B2 (ja) * 2009-11-24 2015-10-21 アンドリッツ インコーポレーテッド 薄いチップの蒸解缶での蒸解方法および装置
US9115214B2 (en) 2012-09-24 2015-08-25 Abengoa Bioenergy New Technologies, Llc Methods for controlling pretreatment of biomass

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215588A (en) * 1963-08-15 1965-11-02 Lummus Co Continuous impregnation, cooking, and washing of fibrous material
US3619348A (en) * 1969-09-05 1971-11-09 Defibrator Ab Process for continuous cellulose cooking
US3664918A (en) * 1969-12-09 1972-05-23 Pulp Paper Res Inst Vapor phase pulping of water saturated lignocellulosic materials
US4071399A (en) * 1976-09-01 1978-01-31 Kamyr, Inc. Apparatus and method for the displacement impregnation of cellulosic chips material
US4632729A (en) * 1984-05-01 1986-12-30 Laakso Oliver A Chip presteaming and air washing
US4958741A (en) * 1989-06-14 1990-09-25 Jr Johanson, Inc. Modular mass-flow bin
US5053108A (en) * 1989-06-28 1991-10-01 Kamyr Ab High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips
US5183535B1 (en) * 1990-02-09 1996-02-06 Sunds Defibrator Rauma Oy Process for preparing kraft pulp using black liquor pretreatment reaction
US5213662A (en) * 1991-08-14 1993-05-25 Kamyr, Inc. Treatment of chips with high temperature black liquor to reduce black liquor viscosity
US5302247A (en) * 1992-11-02 1994-04-12 Kamyr, Inc. Top circulation line cooling for a modified cook digester
US5413677A (en) * 1993-04-05 1995-05-09 Kamyr, Inc. Method for producing chemical pulp from hardwood chips
US5489363A (en) * 1993-05-04 1996-02-06 Kamyr, Inc. Pulping with low dissolved solids for improved pulp strength
US5500083A (en) * 1994-02-01 1996-03-19 Kamyr, Inc. Method of feeding cellulosic material to a digester using a chip bin with one dimensional convergence and side relief
US5476572A (en) * 1994-06-16 1995-12-19 Kamyr, Inc. Chip feeding for a continuous digester
US5622598A (en) * 1995-04-25 1997-04-22 Ahlstrom Machinery Inc. Chip pumping to a digester

Also Published As

Publication number Publication date
JP2001527605A (ja) 2001-12-25
CA2265872C (en) 2005-01-04
AU4351597A (en) 1998-05-05
SE9901264L (sv) 1999-06-09
AU725906B2 (en) 2000-10-26
FI990747A0 (fi) 1999-03-31
CA2265872A1 (en) 1998-04-16
ZA979000B (en) 1998-10-12
WO1998015687A1 (en) 1998-04-16
FI990747A (fi) 1999-06-04
ES2195672A1 (es) 2003-12-01
US5736006A (en) 1998-04-07
SE9901264D0 (sv) 1999-04-09
JP3560162B2 (ja) 2004-09-02
ID19820A (id) 1998-08-06
SE525751C2 (sv) 2005-04-19
FI122813B (fi) 2012-07-13

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved
B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 11/03/2008, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2272 DE 22-07-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.