Liquid purification or separation – With means to add treating material – Plural distinct separators
Reexamination Certificate
2005-02-22
2005-02-22
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
With means to add treating material
Plural distinct separators
C210S206000, C210S208000, C210S257100
Reexamination Certificate
active
06858136
ABSTRACT:
A method for treating silicone emulsion waste includes the steps of adding base chemical materials to the silicone emulsion waste in an amount effective to cause separating of the silicone emulsion waste. The added chemicals separate the silicone emulsion waste into silicone oil and an emulsion-free water. The components can be separated, with the silicone oil laden liquid being sent to an incinerator and the emulsion-free water being sent to a wastewater treatment plant. The base chemicals can include sodium hydroxide, sodium carbonate, sodium chloride and/or combinations thereof. To enhance separating of the silicone emulsion waste, the silicone emulsion waste can be heated prior to the addition of the chemicals. Also, by recycling the treated water and adding the same to the silicone emulsion waste and base chemicals separation of the silicone emulsion waste can be enhanced.
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Chemical Technicians' Ready Reference Handbook, Second Edition, (McGraw-Hill Book Company, NY, NY, copyright 1987) pp. 311-312.
Freshour Amy Rene
Kim Bang Mo
Thornton Roy Fred
General Electric Company
Hruskoci Peter A.
Parker Kimberly H.
Parks Kathy L.
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