Abstract

A process for heat treating a lithium containing material with reduced dust generation comprising: (a) directing a lithium containing material to a heating vessel; (b) heating the lithium containing material in the heating vessel with a controllable source of electromagnetic energy directed toward the lithium containing material to cause a phase transformation in said lithium containing material; and (c) extracting gas and dust from the heating vessel into a gas extraction system. A system for the heating the lithium containing material is also disclosed. The process and system allow higher impurity lithium materials to be treated while reducing the burden of an accumulating dust load during calcination operations.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 1/02 - Roasting processes
• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
• C22B 4/02 - Light metals

Abstract

A process for heat treating a lithium containing material with reduced dust generation comprising: (a) directing a lithium containing material to a heating vessel (1); (b) heating the lithium containing material in the heating vessel (1) with a controllable source of electromagnetic energy (5) directed toward the lithium containing material to cause a phase transformation in said lithium containing material; and (c) extracting gas and dust from the heating vessel (1)a into a gas extraction system (6). A system (10) for the heating the lithium containing material is also disclosed. The process and system allow higher impurity lithium materials to be treated while reducing the burden of an accumulating dust load during calcination operations.

IPC Classes  ?

• F27D 11/12 - Arrangement of elements for electric heating in or on furnaces with electromagnetic fields acting directly on the material being heated
• C01D 15/08 - CarbonatesBicarbonates
• C22B 1/02 - Roasting processes
• C22B 4/08 - Apparatus
• C22B 26/12 - Obtaining lithium
• F27B 7/00 - Rotary-drum furnaces, i.e. horizontal or slightly inclined

IPC Classes  ?

• C01D 15/08 - CarbonatesBicarbonates
• C22B 1/02 - Roasting processes
• C22B 4/08 - Apparatus
• C22B 26/12 - Obtaining lithium
• F27D 11/12 - Arrangement of elements for electric heating in or on furnaces with electromagnetic fields acting directly on the material being heated