Beneficiation of phosphate ore is a process which includes washing, flotation and calcining. Wetsuits provide both thermal insulation and flotation. Syntactic foam is often used for the flotation material. These processes are gravity separation, flotation, and magnetic separation. The beginnings of the revolutionary froth flotation process are associated with graphite mining. Processing is via froth flotation and cyanidation. Closed-cell foam is used on smaller cushions which can, sometimes, double as flotation devices. This renders the ore difficult to treat via the froth flotation technique. He eventually came up with an idea for inflatable flotation. It is used in other applications including ore flotation, oil recovery, making dyes, and detergent. This is one of the easiest methods to remove surfactants from effluents (foam flotation). This had minor internal changes and deleted the hull flotation feature. This includes processes involving solids, such as flotation and crystallization. A very similar process known as "induced gas flotation" is also used for wastewater treatment. It is then concentrated using mineral flotation.