| 摘要 |
<p>A process and apparatus for treating overspray from the spray application of waterborne coatings is provided, which includes at least an electrophoresis separation step (means) (26) for recovering substantially all of solids and higher molecular weight water-soluble components, and a second separation step (means) for recovering the remainder. The result of such treatment is a recyclable waterborne coating stream (52) of substantially the same composition as the waterborne coating and a recyclable water stream (46) containing substantially none of the resin or additive parts of the original waterborne coating. The process and apparatus are effective, efficient and relatively simple, and recycling is effected without the use of coagulants, detackifiers and other chemical additives which may complicate the recycling procedure and have a detrimental effect on the so-recycled products.</p> |
