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Chemistry
Class Information
Number:
423/176
Name:
Chemistry of inorganic compounds
>
Treating mixture to obtain metal containing compound
>
Alkaline earth metal (mg, ca, sr, or ba)
>
Treating impure carbonate (e.g., oyster shells, etc.)
>
Calcining
> Utilizing vacuum or steam
Description:
Processes wherein the mixture is subjected to a pressure below atmospheric or the heat is supplied by steam or water vapor.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
5547640
Compact high temperature air purifier
Aug. 20, 1996
5169617
Method of treating produced gypsum
Dec. 8, 1992
5107517
Melting furnace
Apr. 21, 1992
4748010
Energy conserving limestone calcining system
May. 31, 1988
4468201
Dental endosseous implants
Aug. 28, 1984
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