Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2006-01-31
2006-01-31
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S688000, C210S694000, C210S721000, C210S760000, C210S912000
Reexamination Certificate
active
06991730
ABSTRACT:
Methods for removing organolead compounds from aqueous and non-aqueous organolead compositions. The methods of the present invention include: providing aqueous or non-aqueous compositions including organolead compounds; ozonating the organolead compositions with ozone, wherein the organolead compounds are oxidized producing insoluble lead oxide polymers; contacting the aqueous or non-aqueous compositions including insoluble lead oxide polymers through activated carbon to remove the insoluble lead oxide polymers; filtering the aqueous or non-aqueous compositions including lead oxide polymers through at least one filtering means to remove the insoluble lead oxide polymers; and recovering the aqueous or non-aqueous compositions substantially free of organolead compounds and/or other unwanted contaminants or impurities.
REFERENCES:
patent: 3308061 (1967-03-01), Collier, Jr.
patent: 3770423 (1973-11-01), Lores et al.
patent: 4048061 (1977-09-01), Blytas
patent: 4070282 (1978-01-01), Otto
patent: 5082568 (1992-01-01), Holler
patent: 5128029 (1992-07-01), Herrmann
Haley Charlene A.
Hruskoci Peter A.
The United States of America as represented by the Secretary of
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