Class C01D : COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
Subclass 1/36: Oxides or hydroxides of sodium, potassium, or alkali metals in general Hydroxides Purification; Separation by oxidation
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9029624 | Treatment method for spent caustic soda | Jun 26, 12 | May 12, 15 | SK ENERGY CO., LTD. |
| 8308957 | Process for separating mercaptans from caustic | Aug 03, 10 | Nov 13, 12 | MERICHEM COMPANY |
| 7833499 | Separation process | Jun 14, 07 | Nov 16, 10 | MERICHEM COMPANY |
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