SE9603029D0 - Method for lowering the level of oxalic acid - Google Patents
Method for lowering the level of oxalic acidInfo
- 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
Links
Landscapes
- 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.
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)
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)
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 |
-
1996
- 1996-08-20 SE SE9603029A patent/SE9603029D0/en unknown
-
1997
- 1997-08-20 EP EP97935959A patent/EP0920552A1/en not_active Withdrawn
- 1997-08-20 WO PCT/SE1997/001365 patent/WO1998007922A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0920552A1 (en) | 1999-06-09 |
WO1998007922A1 (en) | 1998-02-26 |
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