Coating with emissions abatement i

Details Coating with emissions abatement i Coating with emissions abatement i

B - Operations, Transporting

01

D

117/57

B01D 53/34 (2006.01) B05D 1/02 (2006.01)

Patent

CA 1159319

- 54 - ABSTRACT OF DISCLOSURE This invention relates to a process of coating a workpiece using a sprayable coating composition in a spraybooth that communicates with a water wash, said water wash permitting contact between airborne components of said sprayable coating composition that enter said water wash and scrubbing water of a high volume, low energy wet scrubber operating at an inlet and outlet pressure difference in a range of less than about 10 inches of water, the improvement which comprises (A) spraying in said spraybooth a scrubbable coating composition comprising a volatile organic compound that boils above about 98°C at atmospheric pressure and is soluble in water above about 6% by weight at 20°C; (B) capturing in said scrubbing water a volatile portion of said scrubbable coating composition wherein said volatile portion comprises an amount of said volatile compound; and (C) maintaining the concentration of said volatile organic compound in said scrubbing water below that concentration at which capturing efficiency falls below 10% of a maximum efficiency.

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