SE9603029D0 - Method for lowering the level of oxalic acid - Google Patents

Method for lowering the level of oxalic acid

Info

Publication number
SE9603029D0
SE9603029D0 SE9603029A SE9603029A SE9603029D0 SE 9603029 D0 SE9603029 D0 SE 9603029D0 SE 9603029 A SE9603029 A SE 9603029A SE 9603029 A SE9603029 A SE 9603029A SE 9603029 D0 SE9603029 D0 SE 9603029D0
Authority
SE
Sweden
Prior art keywords
oxalic acid
lowering
level
oxalate
processes
Prior art date
Application number
SE9603029A
Other languages
Swedish (sv)
Inventor
Nils-Olof Nilvebrant
Anders Reimann
Filipe De Sousa
Original Assignee
Svenska Traeforskningsinst
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 Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst
Priority to SE9603029A priority Critical patent/SE9603029D0/en
Publication of SE9603029D0 publication Critical patent/SE9603029D0/en
Priority to PCT/SE1997/001365 priority patent/WO1998007922A1/en
Priority to EP97935959A priority patent/EP0920552A1/en

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  • Life Sciences & Earth Sciences (AREA)
  • Paper (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

One or several oxalic acid or oxalate decomposing enzymes are used to lower the concentration of oxalic acid and/or oxalate precipitates in the production of pulp and paper. The method is particularly useful in processes using oxidative bleaching and in particular in processes where the process liquids are recirculated within the plant. Thus the forming of incrusts and sediments, comprising sparingly soluble oxalate compounds, is reduced or prevented.
SE9603029A 1996-08-20 1996-08-20 Method for lowering the level of oxalic acid SE9603029D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9603029A SE9603029D0 (en) 1996-08-20 1996-08-20 Method for lowering the level of oxalic acid
PCT/SE1997/001365 WO1998007922A1 (en) 1996-08-20 1997-08-20 Method for lowering the level of oxalic acid
EP97935959A EP0920552A1 (en) 1996-08-20 1997-08-20 Method for lowering the level of oxalic acid

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SE9603029D0 true SE9603029D0 (en) 1996-08-20

Family

ID=20403605

Family Applications (1)

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

Country Status (3)

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

Families Citing this family (5)

* 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
SE518075C2 (en) * 2000-12-07 2002-08-20 Stora Kopparbergs Bergslags Ab Ways of Removing Hard Soluble Coatings
AU2002363783A1 (en) * 2001-10-05 2003-05-26 Ixion Biotechnology, Inc. Materials and methods for reducing oxalate concentrations in fluids
PT1962873E (en) 2005-12-14 2013-08-29 Oxthera Inc Pharmaceutical compositions comprising oxalate-reducing bacteria
CN104013581A (en) 2005-12-16 2014-09-03 奥克斯赛拉公司 Compositions and methods for oxalate reduction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE417114B (en) * 1977-07-25 1981-02-23 Mo Och Domsjoe Ab PROCEDURE FOR PREVENTION OF INSTRUCTIVE EDUCATION IN CELLULOS FACTORIES
US5320757A (en) * 1993-04-05 1994-06-14 Betz Laboratories, Inc. Method of inhibiting calcium oxalate scale deposition
DE69428230T2 (en) * 1993-06-14 2002-06-27 Solutia Europ Nv Sa Process for preventing oxalate deposits
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
SE504424C2 (en) * 1994-11-04 1997-02-10 Kvaerner Pulping Tech Ways to precipitate transition metals and alkaline earth metals from bleaching liquids by adding alkaline liquid

Also Published As

Publication number Publication date
EP0920552A1 (en) 1999-06-09
WO1998007922A1 (en) 1998-02-26

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