Method for flocculating metal oxide particles in an organic medi

Details Method for flocculating metal oxide particles in an organic medi Method for flocculating metal oxide particles in an organic medi

1981-01-26

1982-06-15

Pianalto, Bernard D.

Chemistry: physical processes

Physical processes

Agglomerating

210729, 252 6254, 252316, 252352, 252357, 427128, 428694, 428900, C05B 1900, C22B 114

Patent

active

043348874

ABSTRACT:
A method for complexing metal oxide particles in an organic medium is disclosed. The method comprises incorporating into said medium an effective amount of a complexing agent of the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl and alkenyl groups containing from 4 to 22 carbon atoms, aryl groups containing from 4 to 10 carbon atoms, alkyl and alkenyl groups containing from 4 to 22 carbon atoms substituted with one or more aryl groups containing from 4 to 10 carbon atoms and aryl groups containing from 4 to 10 carbon atoms substituted with one or more alkyl or alkenyl groups containing from 1 to 22 carbon atoms; R.sub.2 is selected from the group consisting of hydrogen, --(CH.sub.2 CH.sub.2 O).sub.n H, wherein n is an integer from 1 to 10, alkyl and alkenyl groups containing from 1 to 22 carbon atoms, aryl groups containing from 4 to 10 carbon atoms, alkyl and alkenyl groups containing from 1 to 22 carbon atoms substituted with one or more aryl groups containing from 4 to 10 carbon atoms and aryl groups containing from 4 to 10 carbon atoms substituted with one or more alkyl or alkenyl groups containing from 1 to 22 carbon atoms; R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen, -- CH.sub.3, and --CH.sub.2 CH.sub.3 ; and R.sub.5 and R.sub.6 are independently selected from the group consisting of hydrogen, --CH.sub.3, --CH.sub.2 CH.sub.3, and --(CH.sub.2 CH.sub.2 O).sub.n H wherein n is an integer from 1 to 10.

REFERENCES:
JACS 68, 14 (1946) Johnson.

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