Nonionic polymers for the treatment of boiler water
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United States of America Patent
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Jun 18, 1996
Grant Date -
N/A
app pub date -
Dec 20, 1994
filing date -
Dec 20, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A treatment for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems, wherein the aqueous medium is maintained at a pH which minimizes magnetite solubility, comprising the use of a combination of an organic amine and a nonionic polymer having the structure: ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or a mixture of both, n is an integer of from 1 to about 40, and R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate.
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