Process and apparatus for treating a liquid with a gas
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
InventorGuillermo Garrido
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Abstract
The invention relates to the treatment of a liquid with a gas. A gas injector, for example oxygen, is surrounded with a sheath to carry a flow of a liquid under treatment (for example lead) which is taken up and circulated by the pump. The end of the injector is thereby protected by moving away the bubbles of oxygen. Application for example in the refining of metals, for example non ferrous metals, food liquids, paper pulps and the production of sulfur.
Claims9
In a process for treating a molten metal in a molten metal bath with a processing gas, comprising injecting a flow of said processing gas through an outlet end of a gas ejector immersed within said bath of said molten metal, the improvement comprising:
- recirculating a flow of said molten metal from said bath and ejecting said molten metal flow back into said bath in the immediate vicinity of said outlet end of said gas ejector, said ejecting of said molten metal flow being generally co-axial to the direction of said injecting of said flow of processing gas.
In an apparatus for treating a molten metal in a molten metal bath with a processing gas comprising means for injecting a flow of said processing gas through an outlet end of a gas ejector immersed within said bath of said molten metal, the improvement comprising:
- molten metal ejection means for circulating a flow of said molten metal taken from said bath and ejecting said molten metal flow back into said bath in the immediate vicinity of said outlet of said gas injector, said molten metal ejection means effecting ejecting of said molten metal flow generally co-axially to the direction of said injecting of said flow of processing gas.
Dependencies are inferred from the claim text.