US PATENT SUBCLASS 423 / 157.5
.~.~ Phosphorous or phosphorous compound containing waste as feed

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
155  DF  .~ Alkaline earth metal (Mg, Ca, Sr, or Ba) {11}
157.5.~.~ Phosphorous or phosphorous compound containing waste as feed

DEFINITION

Classification: 423/157.5

Phosphorous or phosphorous compound containing waste as feed:

(under subclass 155) Processes wherein the mixture treated is a by-product or discarded product of another process.