High density magnesia pellet and method for making same
AssigneeBasic Incorporated
InventorVaughn V. Hughey
Life of this patent
Estimating the term…
Abstract
Caustic magnesia and magnesium hydroxide slurry are mixed together with sufficient energy in a counter-current high energy mixer to form pellets of various sizes during hydration of the caustic magnesia. The pellets may be used as formed or may be calcined to caustic magnesia or deadburned in a kiln to refractory periclase.
Claims10
A method of making magnesium hydroxide pellets comprising the steps of mixing caustic magnesia, magnesium hydroxide and water in a rotatable mixing bowl containing a plurality of mixing tools eccentrically placed within the mixing bowl, rotating the mixing bowl about its axis of rotation while simultaneously subjecting the ingredients therein to the action of the rotating mixing tools wherein at least one of said mixing tools is rotated in the direction opposite to the direction of rotation of the mixing bowl, whereby the caustic magnesia hydrates in an exothermic reaction and excess water is driven off to form magnesium hydroxide pellets in the mixing bowl.
Dependencies are inferred from the claim text.