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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
B01D29/39—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D37/00—Processes of filtration
B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
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FR631411D1926-05-281927-03-25Procédé et appareil pour la purification de liquides contenant des colloïdes et (ou) des dispersions plus grossières
ExpiredFR631411A
(fr)
Appareil perfectionné pour le traitement des effluents ou d'autres liquides et pourla séparation et la récupération de matières de densité différente