US PATENT SUBCLASS 34 / 373
.~.~.~ With contact with additional gas or vapor flow

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

282  DF  PROCESS {24}
359  DF  .~ With fluid current conveying or suspension of treated material {3}
372  DF  .~.~ Spray drying and cooling of slurry or suspension {1}
373.~.~.~ With contact with additional gas or vapor flow {1}
374  DF  .~.~.~.~> Additional flow is countercurrent

DEFINITION

Classification: 34/373

With contact with additional gas or vapor flow:

(under subclass 372) Process wherein a first gas or vapor is used to convey the suspension or slurry through an atomizing nozzle and a second gas or vapor is used to dry the resulting atomized solid-liquid stream.