PT101999B - Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio - Google Patents

Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio

Info

Publication number
PT101999B
PT101999B PT101999A PT10199997A PT101999B PT 101999 B PT101999 B PT 101999B PT 101999 A PT101999 A PT 101999A PT 10199997 A PT10199997 A PT 10199997A PT 101999 B PT101999 B PT 101999B
Authority
PT
Portugal
Prior art keywords
magnesium
acid
ammonium
cooking acid
present innovation
Prior art date
Application number
PT101999A
Other languages
English (en)
Other versions
PT101999A (pt
Original Assignee
Joao Manuel Almeida Oliveira B
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 Joao Manuel Almeida Oliveira B filed Critical Joao Manuel Almeida Oliveira B
Priority to PT101999A priority Critical patent/PT101999B/pt
Priority to EP98914170A priority patent/EP0977918B1/en
Priority to AT98914170T priority patent/ATE362010T1/de
Priority to BR9809423-8A priority patent/BR9809423A/pt
Priority to DE69837755T priority patent/DE69837755T2/de
Priority to PCT/PT1998/000002 priority patent/WO1998049390A1/en
Priority to AU68586/98A priority patent/AU738720B2/en
Priority to US09/403,864 priority patent/US20020153108A1/en
Publication of PT101999A publication Critical patent/PT101999A/pt
Publication of PT101999B publication Critical patent/PT101999B/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/14—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites ammonium bisulfite
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite

Landscapes

  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
PT101999A 1997-04-28 1997-04-28 Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio PT101999B (pt)

Priority Applications (8)

Application Number Priority Date Filing Date Title
PT101999A PT101999B (pt) 1997-04-28 1997-04-28 Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio
EP98914170A EP0977918B1 (en) 1997-04-28 1998-04-20 A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent
AT98914170T ATE362010T1 (de) 1997-04-28 1998-04-20 Ein holzdesignifizierendes chemisches verfahren wobei ammonium magniseium bisulfit als aktives reagenzverwendet wird
BR9809423-8A BR9809423A (pt) 1997-04-28 1998-04-20 Processo quìmico de deslignificação da madeira utilizando como reagente ativo bissulfito de magnésio e amÈnio
DE69837755T DE69837755T2 (de) 1997-04-28 1998-04-20 Chemisches Verfahren zur Holzdelignifizierung unter Verwendung von Ammonium-Magnesium-Bisulfit als aktives Reagenz
PCT/PT1998/000002 WO1998049390A1 (en) 1997-04-28 1998-04-20 A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent
AU68586/98A AU738720B2 (en) 1997-04-28 1998-04-20 A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent
US09/403,864 US20020153108A1 (en) 1997-04-28 1998-04-20 Wood delignification chemical process using ammonium magnesium bisulphite as the active reagent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT101999A PT101999B (pt) 1997-04-28 1997-04-28 Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio

Publications (2)

Publication Number Publication Date
PT101999A PT101999A (pt) 1998-11-30
PT101999B true PT101999B (pt) 2003-09-30

Family

ID=20085674

Family Applications (1)

Application Number Title Priority Date Filing Date
PT101999A PT101999B (pt) 1997-04-28 1997-04-28 Processo quimico de deslenhificacao da madeira utilizando como reagente activo o composto - bissulfito duplo de magnesio e amonio

Country Status (8)

Country Link
US (1) US20020153108A1 (pt)
EP (1) EP0977918B1 (pt)
AT (1) ATE362010T1 (pt)
AU (1) AU738720B2 (pt)
BR (1) BR9809423A (pt)
DE (1) DE69837755T2 (pt)
PT (1) PT101999B (pt)
WO (1) WO1998049390A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112013015190B1 (pt) * 2010-12-15 2021-05-11 Imperial Innovations Limited método de tratamento de uma biomassa de lignocelulose para dissolver a lignina na mesma e processo de preparação de glicose a partir de uma biomassa de lignocelulose
US11118308B2 (en) 2013-03-15 2021-09-14 Ip2Ipo Innovations Limited Treatment of lignocellulosic biomass with ionic liquid
GB201520453D0 (en) 2015-11-20 2016-01-06 Imp Innovations Ltd Process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL87584C (pt) * 1952-02-15
DE2445523A1 (de) * 1974-09-24 1976-04-01 Waldhof Aschaffenburg Papier Verfahren zur herstellung von zellstoff
DD151581A3 (de) * 1976-11-11 1981-10-28 Kurt Doeink Verfahren zum aufschluss lignozellulsischen materials nach dem bisulfitverfahren
JPS5653295A (en) * 1979-10-04 1981-05-12 Kogyo Gijutsuin Pulping method of waste rubber material
US4634499A (en) * 1983-05-02 1987-01-06 The Procter & Gamble Company Sulfite process for making pulp having a tactile softness from hardwood chips
SU1359387A1 (ru) * 1985-09-25 1987-12-15 Центральный научно-исследовательский институт бумаги Волокниста масса дл изготовлени гофрированной бумаги
SU1696631A1 (ru) * 1989-06-26 1991-12-07 Сибирский научно-исследовательский институт целлюлозы и картона Состав дл обработки древесной массы

Also Published As

Publication number Publication date
EP0977918A1 (en) 2000-02-09
AU6858698A (en) 1998-11-24
ATE362010T1 (de) 2007-06-15
BR9809423A (pt) 2000-06-13
DE69837755T2 (de) 2008-01-31
PT101999A (pt) 1998-11-30
EP0977918B1 (en) 2007-05-09
US20020153108A1 (en) 2002-10-24
AU738720B2 (en) 2001-09-27
WO1998049390A1 (en) 1998-11-05
DE69837755D1 (de) 2007-06-21

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Legal Events

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Effective date: 19970731

FG3A Patent granted, date of granting

Effective date: 20030722

MM4A Annulment/lapse due to non-payment of fees, searched and examined patent

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20111028