The densimetric tables are machines designed for the separation of products of different densities, through a fluidization system plus a vibration component.

A fluidization gas is flowed into the fluidizing chamber.

The first fluidizing bed and the second fluidizing bed (52) are arranged side by side, with a divider (54) that separates the first fluidizing bed (52) and the second fluidizing bed (52).

A drying system includes a fluidized bed dryer and fluidizing gas loop.

Valve means (32) also adjusts the fluidizing air supply to the container from which powder is pumped.

The powder collector (14) includes a first fluidizing bed (52) and a second fluidizing bed (52).

The invention involves a system and a process that reduces the potential for catalyst fluidization in a reduction vessel of a continuous catalyst regeneration system.

A conventional lateral system results in uneven fluidisation of the filter media bed.

A gas distribution system is used for controlling the gas flow to create regions of greater and lesser fluidization.

Into a second chamber room (19) positioned downstream of the direction of fluidization, a second fluidization gas with a relatively high vapor concentration compared to the first fluidization gas flows.

Into a first chamber room (18) positioned upstream of the direction of fluidization, a first fluidization gas with a low vapor concentration flows.

The fluidisation gas (7) flows through said gap which may be altered into the fluidisation chamber (1).

An agitation mechanism is operable to mix the gypsum adjacent the fluidization pad to prevent pockets of gypsum from coagulating and preventing fluidization of the gypsum.

A fluidizing distribution apparatus for distributing alumina powder in the fume-purifying system of the aluminium electrolytic process is disclosed.

The retort of the fluidized bed includes a system for recycling the air (500) or other gas passed through the fluidizing media in the furnace.