Abstract: An inclined static deoiler and conditioner for treating ore such as coal, phosphate, and the like which combines with liquid to form a slurry prior to froth floation which includes in combination a trough having plural baffles therein which are oriented to cause turbulence in the slurry. End walls on the trough are provided having an inlet and outlet adapted to fasten to piping in which the maximum flow rate is determined by the piping diameter such that liquid entering in the trough is assured of staying substantially at or below the vertical height of the baffles. The through flow within the device is controlled by angulation of the trough which is variable, and baffle configuration.