Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Reexamination Certificate
2007-09-25
2007-09-25
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
C210S652000, C210S668000, C210S687000, C422S014000
Reexamination Certificate
active
10257952
ABSTRACT:
The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is achieved without reducing the quantity of hardness constituents contained in the liquid overall, without exchanging the hardness constituents in the liquid for other cations such as e.g. hydronium, sodium or potassium and without adding chemicals such as e.g. phosphates which inhibit scale formation to the liquid. Instead, scale formation is reduced by specifically shifting the molar distribution of the hardness constituents, especially the distribution proportions of the individual hardness constituents magnesium and calcium strontium and barium. According to the inventive method, proportions of the hardness constituents calcium, strontium and barium in the liquid are substituted with the proportions of the hardness constituent magnesium, In addition to efficiently reducing scale formation, the method inhibits corrosion processes in systems which conduct liquids or are in contact with liquids and reduces the extent of these processes.
REFERENCES:
patent: 2807807 (1957-10-01), Harper
patent: 3649532 (1972-03-01), McLean
patent: 4029576 (1977-06-01), Shivers
patent: 4253950 (1981-03-01), Wojtowicz
patent: 4383924 (1983-05-01), Ritter
patent: 4451361 (1984-05-01), Paterson
patent: 4931187 (1990-06-01), Derham et al.
patent: 5156746 (1992-10-01), Maree et al.
patent: 5277823 (1994-01-01), Hann et al.
patent: 5837134 (1998-11-01), Heskett
patent: 5993737 (1999-11-01), Mackintosh et al.
patent: 1 955 571 (1971-05-01), None
patent: 38 12 413 (1989-10-01), None
patent: 40 15 336 (1991-11-01), None
patent: 2 013 171 (1979-08-01), None
Hoffman Wasson & Gitler
Honeywell Technologies SARL
Hruskoci Peter A.
LandOfFree
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