MX9604570A - An aqueous system containing a synergistic phosphonate scale control combination. - Google Patents

An aqueous system containing a synergistic phosphonate scale control combination.

Info

Publication number
MX9604570A
MX9604570A MX9604570A MX9604570A MX9604570A MX 9604570 A MX9604570 A MX 9604570A MX 9604570 A MX9604570 A MX 9604570A MX 9604570 A MX9604570 A MX 9604570A MX 9604570 A MX9604570 A MX 9604570A
Authority
MX
Mexico
Prior art keywords
aqueous system
synergistic
system containing
scale control
control combination
Prior art date
Application number
MX9604570A
Other languages
Spanish (es)
Other versions
MXPA96004570A (en
Inventor
Jasbir S Gill
Original Assignee
Calgon Corp
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 US08/540,270 external-priority patent/US5593595A/en
Priority claimed from US08/540,268 external-priority patent/US5709814A/en
Application filed by Calgon Corp filed Critical Calgon Corp
Publication of MX9604570A publication Critical patent/MX9604570A/en
Publication of MXPA96004570A publication Critical patent/MXPA96004570A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a synergistic effective amount of a combination comprising (A) a polyether polyamino methylene phosphonate, (B) a terpolymer comprising the monomers of acrylic acid, sulfophenomethallyl ether and maleic acid, and (C) a hydroxyphosphonoacetic acid, is disclosed. A method for inhibiting the formation, deposition and adherence of such scale forming salts in the aqueous system employing the synergistic combination is also provided.
MXPA/A/1996/004570A 1995-10-06 1996-10-04 An aqueous system that contains a synergistic combination for the control of defrosf incrustations MXPA96004570A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08540270 1995-10-06
US08540268 1995-10-06
US08/540,270 US5593595A (en) 1995-10-06 1995-10-06 Method for controlling scale using a synergistic phosphonate combination
US08/540,268 US5709814A (en) 1995-10-06 1995-10-06 Aqueous system containing a synergistic phosphonate scale control combination

Publications (2)

Publication Number Publication Date
MX9604570A true MX9604570A (en) 1997-09-30
MXPA96004570A MXPA96004570A (en) 1998-07-03

Family

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Also Published As

Publication number Publication date
BR9603998A (en) 1998-11-03
JPH09174092A (en) 1997-07-08
CA2187121A1 (en) 1997-04-07

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