DE69837755D1 - Ein holzdesignifizierendes chemisches verfahren wobei ammonium magniseium bisulfit als aktives reagenzverwendet wird - Google Patents

Ein holzdesignifizierendes chemisches verfahren wobei ammonium magniseium bisulfit als aktives reagenzverwendet wird

Info

Publication number
DE69837755D1
DE69837755D1 DE69837755T DE69837755T DE69837755D1 DE 69837755 D1 DE69837755 D1 DE 69837755D1 DE 69837755 T DE69837755 T DE 69837755T DE 69837755 T DE69837755 T DE 69837755T DE 69837755 D1 DE69837755 D1 DE 69837755D1
Authority
DE
Germany
Prior art keywords
acid
ammonium
cooking acid
magnesium
present innovation
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 - Fee Related
Application number
DE69837755T
Other languages
English (en)
Other versions
DE69837755T2 (de
Inventor
Oliveira Baptista Joao Almeida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE69837755D1 publication Critical patent/DE69837755D1/de
Application granted granted Critical
Publication of DE69837755T2 publication Critical patent/DE69837755T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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)
DE69837755T 1997-04-28 1998-04-20 Chemisches Verfahren zur Holzdelignifizierung unter Verwendung von Ammonium-Magnesium-Bisulfit als aktives Reagenz Expired - Fee Related DE69837755T2 (de)

Applications Claiming Priority (3)

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
PT10199997 1997-04-28
PCT/PT1998/000002 WO1998049390A1 (en) 1997-04-28 1998-04-20 A wood delignification chemical process using ammonium magnesium bisulphite as the active reagent

Publications (2)

Publication Number Publication Date
DE69837755D1 true DE69837755D1 (de) 2007-06-21
DE69837755T2 DE69837755T2 (de) 2008-01-31

Family

ID=20085674

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69837755T Expired - Fee Related DE69837755T2 (de) 1997-04-28 1998-04-20 Chemisches Verfahren zur Holzdelignifizierung unter Verwendung von Ammonium-Magnesium-Bisulfit als aktives Reagenz

Country Status (8)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2652193B1 (de) 2010-12-15 2020-09-16 IP2IPO Innovations Limited Behandlung
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 (de) * 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
US20020153108A1 (en) 2002-10-24
WO1998049390A1 (en) 1998-11-05
BR9809423A (pt) 2000-06-13
EP0977918A1 (de) 2000-02-09
EP0977918B1 (de) 2007-05-09
AU738720B2 (en) 2001-09-27
PT101999A (pt) 1998-11-30
AU6858698A (en) 1998-11-24
ATE362010T1 (de) 2007-06-15
DE69837755T2 (de) 2008-01-31
PT101999B (pt) 2003-09-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee