ES2163427T3 - Procedimiento para inhibir la formacion de depositos de oxalato. - Google Patents

Procedimiento para inhibir la formacion de depositos de oxalato.

Info

Publication number
ES2163427T3
ES2163427T3 ES94870087T ES94870087T ES2163427T3 ES 2163427 T3 ES2163427 T3 ES 2163427T3 ES 94870087 T ES94870087 T ES 94870087T ES 94870087 T ES94870087 T ES 94870087T ES 2163427 T3 ES2163427 T3 ES 2163427T3
Authority
ES
Spain
Prior art keywords
formation
inhibit
procedure
ppm
oxalate deposits
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 - Lifetime
Application number
ES94870087T
Other languages
English (en)
Inventor
Krzysztof Kuczynski
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.)
Solutia Europe BVBA SPRL
Original Assignee
Solutia Europe BVBA SPRL
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
Priority claimed from EP93870111A external-priority patent/EP0629585A1/en
Application filed by Solutia Europe BVBA SPRL filed Critical Solutia Europe BVBA SPRL
Application granted granted Critical
Publication of ES2163427T3 publication Critical patent/ES2163427T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
    • C07F9/3817—Acids containing the structure (RX)2P(=X)-alk-N...P (X = O, S, Se)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Treating Waste Gases (AREA)
  • Polyamides (AREA)

Abstract

SE PRESENTA UN PROCESO PARA INHIBIR LA FORMACION DE ESCAMAS DE OXALATO EN SISTEMAS ACUOSOS. UNA CLASE PREFERIDA DE INHIBIDORES DE ESCAMAS ESTA REPRESENTADA POR LOS FOSFONATOS DE EXAMETILENO DE POLIAMINO. ESTOS INHIBIDORES DE FOSFONATO PUEDEN UTILIZARSE EN NIVELES DE ENTRE 0.005 HASTA 300 PPM (DE LA SOLUCION ACUOSA) A UN PH QUE VA DESDE EL PH CERCANO AL NEUTRO HASTA PREFERIBLEMENTE EL ALCALINO.
ES94870087T 1993-06-14 1994-05-24 Procedimiento para inhibir la formacion de depositos de oxalato. Expired - Lifetime ES2163427T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP93870111A EP0629585A1 (en) 1993-06-14 1993-06-14 Process of inhibition oxalate scale formation
EP94870087A EP0628518B1 (en) 1993-06-14 1994-05-24 Process of inhibition oxalate scale formation
US08/257,855 US5490942A (en) 1993-06-14 1994-06-10 Process of inhibiting oxalate scale formation

Publications (1)

Publication Number Publication Date
ES2163427T3 true ES2163427T3 (es) 2002-02-01

Family

ID=27235604

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94870087T Expired - Lifetime ES2163427T3 (es) 1993-06-14 1994-05-24 Procedimiento para inhibir la formacion de depositos de oxalato.

Country Status (6)

Country Link
US (1) US5490942A (es)
EP (1) EP0628518B1 (es)
AT (1) ATE205460T1 (es)
DE (1) DE69428230T2 (es)
DK (1) DK0628518T3 (es)
ES (1) ES2163427T3 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9603029D0 (sv) * 1996-08-20 1996-08-20 Svenska Traeforskningsinst Method for lowering the level of oxalic acid
AU2002346240B2 (en) * 2001-06-06 2006-10-26 Thermphos Trading Gmbh Method and aqueous composition for the production of improved pulp
MY138251A (en) * 2001-06-06 2009-05-29 Thermphos Trading Gmbh Method for inhibiting calcium salt scale
MY129053A (en) * 2001-06-06 2007-03-30 Thermphos Trading Gmbh Composition for inhibiting calcium salt scale
ITMI20021706A1 (it) * 2002-07-31 2004-02-01 Bozzetto Giovanni Spa Poliamminomeilenfosfono derivati.
US7807021B2 (en) * 2006-06-21 2010-10-05 Blackstone Michael M Compositions and processes to increase pulp yield, reduce extractives, and reduce scaling in a chemical pulping process
US20100197545A1 (en) 2009-01-30 2010-08-05 Ecolab USA High alkaline detergent composition with enhanced scale control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434969A (en) * 1967-08-11 1969-03-25 Calgon Corp Scale inhibiting
US3619427A (en) * 1970-06-22 1971-11-09 Textilana Corp Methods of scale inhibition using polyalkylene polyamino polykis methylene phosphonic acids and their salts
US4872995A (en) * 1983-10-26 1989-10-10 Betz Laboratories, Inc. Method for calcium oxalate scale control
US4575425A (en) * 1984-12-24 1986-03-11 Calgon Corporation Process for controlling calcium oxalate scale over a wide pH range
DE3526640A1 (de) * 1985-07-25 1987-01-29 Benckiser Knapsack Gmbh Korrosions- und steinschutzmittel fuer brauchwassersysteme
US4804476A (en) * 1987-10-23 1989-02-14 Calgon Corporation Process for controlling calcium oxalate scale over a wide pH range
GB2248830A (en) * 1990-10-04 1992-04-22 Britoil Plc Method for inhibiting scale formation
DE69114436T2 (de) * 1990-10-04 1996-06-20 Britoil Plc Verfahren zur Bekämpfung der Kesselsteinbildung.
US5338477A (en) * 1991-05-31 1994-08-16 Calgon Corporation Polyether polyamino methylene phosphonates for high pH scale control
AU2701392A (en) * 1991-10-15 1993-04-22 Calgon Corporation Method for controlling calcium sulfate scaling in metal mining circuits

Also Published As

Publication number Publication date
EP0628518B1 (en) 2001-09-12
ATE205460T1 (de) 2001-09-15
DE69428230T2 (de) 2002-06-27
DK0628518T3 (da) 2001-12-17
DE69428230D1 (de) 2001-10-18
US5490942A (en) 1996-02-13
EP0628518A1 (en) 1994-12-14

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