air pick up points pass to the scrubber where they are sequestered any lithium compounds or vocs which escape the scrubber are condensed by the atomized water from the atomizer 84 and the condensed lithium compounds and vocs pass to the water tank 86 the ph of the water in the atomizer and the tank is controlled with for example the addition of sodium hydroxide to a concentration of 50 to ensure the gas remains condensed in the water any paper drawn off is trapped by filter 37 before it reaches the scrubber so that it will not obstruct the scrubber because of the risk of combustion with lithium ion battery feedstock the temperature in the oven conveyor is maintained below the combustion temperature of paper 454 u00b0 f with lithium button cells at the sieve the powder which drops out is mostly lithium cobalt oxide but can vary depending on the chemical composition of the lithium ion battery this powder can be used in the coatings industry as before a mesh size 30 is suitable to limit contamination of this powder the magnetic component separated by the magnetic wheel includes stainless steel and magnetic alloys as well as any copper that is trapped by the stainless steel and magnetic alloys the specific gravity separator 78 fig3 separates out non ferrous fluff encapsulated with this magnetic component.