Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-01-24
1979-07-03
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
252180, 252181, 2605024R, 528271, C02B 506
Patent
active
041599462
ABSTRACT:
A method of inhibiting the precipitation of scale-forming salts of calcium, magnesium, barium and strontium from aqueous systems which involves adding to the aqueous system a telomeric compound of the formula: ##STR1## and the salt forming derivatives thereof, wherein: R.sup.11 is H, CH.sub.3, C.sub.2 H.sub.5 ; R.sup.1 is --OX wherein X is alkyl of 1-4 carbon atoms or hydrogen; R is hydrogen, alkyl of 1-18 carbon atoms, cycloalkyl of 5-12 carbon atoms, phenyl or benzyl, and n is a positive integer of at most 100.
REFERENCES:
patent: 2957931 (1960-10-01), Hamilton et al.
patent: 3159537 (1964-12-01), Takesue et al.
patent: 4042324 (1977-08-01), Avel et al.
Finan Michael A.
Miles Peter
Richardson Norman
Smith Malcolm J.
Ciba Geigy (UK) Limited
Hart Charles N.
Hruskoci Peter A.
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