A plate filter often used to filtrate the silver/gold/zinc precipitate generated in a Merrill Crowe process. These filters have the advantage of low cost, great strength and ease of internal inspection.
Plate and frame filters are made in every conceivable combination of inlet and outlet positions. Bottom inlet and top outlet positions are considered best for precoating and filter aid suspension. In larger sizes it is preferable that these are at opposite ends of the filter. All air should be purged from the filter before precoating is completed. This may be difficult if gasketed filter septa are used.
