US PATENT SUBCLASS 75 / 405
.~.~ Removing gas from liquid metal by use of gas permeable membrane

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
405.~.~ Removing gas from liquid metal by use of gas permeable membrane

DEFINITION

Classification: 75/405

Removing gas from liquid metal by use of gas permeable membrane:

(under subclass 392) Process in which the liquid metal containing a gas is contacted with one side of a gas permeable membrane to selectively permeate the gas through the membrane to remove the gas from the liquid metal.

SEE OR SEARCH CLASS

95, Gas Separation: Processes,

46, for processes of removing a gas from a liquid other than a liquid metal by use of selective diffusion of gases through a substantially solid barrier (e.g., semipermeable membrane, etc.).