WO1998007922A1 - Method for lowering the level of oxalic acid - Google Patents

Method for lowering the level of oxalic acid Download PDF

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Publication number
WO1998007922A1
WO1998007922A1 PCT/SE1997/001365 SE9701365W WO9807922A1 WO 1998007922 A1 WO1998007922 A1 WO 1998007922A1 SE 9701365 W SE9701365 W SE 9701365W WO 9807922 A1 WO9807922 A1 WO 9807922A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxalic acid
oxalate
enzyme
liquids
enzymes
Prior art date
Application number
PCT/SE1997/001365
Other languages
English (en)
French (fr)
Inventor
Nils-Olov Nilvebrant
Anders Reimann
Filipe De Sousa
Original Assignee
Stfi
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 Stfi filed Critical Stfi
Priority to EP97935959A priority Critical patent/EP0920552A1/en
Publication of WO1998007922A1 publication Critical patent/WO1998007922A1/en

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
    • D21C9/008—Prevention of corrosion or formation of deposits on pulp-treating equipment
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
PCT/SE1997/001365 1996-08-20 1997-08-20 Method for lowering the level of oxalic acid WO1998007922A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97935959A EP0920552A1 (en) 1996-08-20 1997-08-20 Method for lowering the level of oxalic acid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603029A SE9603029D0 (sv) 1996-08-20 1996-08-20 Method for lowering the level of oxalic acid
SE9603029-1 1996-08-20

Publications (1)

Publication Number Publication Date
WO1998007922A1 true WO1998007922A1 (en) 1998-02-26

Family

ID=20403605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/001365 WO1998007922A1 (en) 1996-08-20 1997-08-20 Method for lowering the level of oxalic acid

Country Status (3)

Country Link
EP (1) EP0920552A1 (sv)
SE (1) SE9603029D0 (sv)
WO (1) WO1998007922A1 (sv)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002046680A1 (en) * 2000-12-07 2002-06-13 Stora Kopparbergs Bergslags Ab A method or removing deposits that are difficult to dissolve
WO2003042380A2 (en) * 2001-10-05 2003-05-22 Ixion Biotechnology, Inc. Materials and methods for reducing oxalate concentrations in fluids
US8486389B2 (en) 1997-05-23 2013-07-16 Oxthera, Inc. Compositions and methods for treating or preventing oxalate-related disease
US8545836B2 (en) 2005-12-14 2013-10-01 Oxthera, Inc. Pharmaceutical compositions and methods for treating oxalate-dependent conditions
US8900575B2 (en) 2005-12-16 2014-12-02 Oxthera Intellectual Property Ab Compositions and methods for oxalate reduction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218284A (en) * 1977-07-25 1980-08-19 Mo Och Domsjo Aktiebolag Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes
US5320757A (en) * 1993-04-05 1994-06-14 Betz Laboratories, Inc. Method of inhibiting calcium oxalate scale deposition
WO1995009944A1 (en) * 1993-10-01 1995-04-13 Union Camp Patent Holding, Inc. DESCALING BY REGULATING pH AND SALT CONCENTRATION
US5490942A (en) * 1993-06-14 1996-02-13 Monsanto Company Process of inhibiting oxalate scale formation
WO1996014467A1 (en) * 1994-11-04 1996-05-17 Kvaerner Pulping Ab Method of precipitating transition metals and alkaline earth metals from bleach plant effluents

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218284A (en) * 1977-07-25 1980-08-19 Mo Och Domsjo Aktiebolag Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes
US5320757A (en) * 1993-04-05 1994-06-14 Betz Laboratories, Inc. Method of inhibiting calcium oxalate scale deposition
US5490942A (en) * 1993-06-14 1996-02-13 Monsanto Company Process of inhibiting oxalate scale formation
WO1995009944A1 (en) * 1993-10-01 1995-04-13 Union Camp Patent Holding, Inc. DESCALING BY REGULATING pH AND SALT CONCENTRATION
WO1996014467A1 (en) * 1994-11-04 1996-05-17 Kvaerner Pulping Ab Method of precipitating transition metals and alkaline earth metals from bleach plant effluents

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8486389B2 (en) 1997-05-23 2013-07-16 Oxthera, Inc. Compositions and methods for treating or preventing oxalate-related disease
US10149866B2 (en) 2000-02-09 2018-12-11 Oxthera Intellectual Property Ab Compositions and methods for treating or preventing oxalate-related disease
WO2002046680A1 (en) * 2000-12-07 2002-06-13 Stora Kopparbergs Bergslags Ab A method or removing deposits that are difficult to dissolve
WO2003042380A2 (en) * 2001-10-05 2003-05-22 Ixion Biotechnology, Inc. Materials and methods for reducing oxalate concentrations in fluids
WO2003042380A3 (en) * 2001-10-05 2003-12-18 Ixion Biotechnology Inc Materials and methods for reducing oxalate concentrations in fluids
CN1578833B (zh) * 2001-10-05 2010-05-26 奥克斯赛拉公司 降低流体中草酸(盐)浓度的材料和方法
US10653726B2 (en) 2004-06-15 2020-05-19 Oxthera Intellectual Property Ab Compositions and methods for treating or preventing oxalate-related disease
US8545836B2 (en) 2005-12-14 2013-10-01 Oxthera, Inc. Pharmaceutical compositions and methods for treating oxalate-dependent conditions
US8900575B2 (en) 2005-12-16 2014-12-02 Oxthera Intellectual Property Ab Compositions and methods for oxalate reduction
US10272043B2 (en) 2005-12-16 2019-04-30 Oxthera Intellectual Property Ab Compositions and methods for oxalate reduction

Also Published As

Publication number Publication date
EP0920552A1 (en) 1999-06-09
SE9603029D0 (sv) 1996-08-20

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