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AssigneeRafael-Armament Development Authority Ltd.
InventorsTamar Kaully, Benjamin Keren, Tamar Kimmel, Orly Dekel
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Method of shaping solid, particulate materials, which comprises forming a raw slurry of the starting material, in a liquid which is a partial solvent of said material, and submitting the slurry to treatment by ultrasound generators to produce therein ultrasonic vibrations which shape and grind the starting, particulate material to produce a shaped slurry of ground and shaped particles. The shaped particles may be separated from their slurry by removing the partial solvent by decantation and/or filtration. The partial solvent may be a liquid in which the material to be shaped has a solubility comprised between 1 and 10, wherein the solubility is expressed as grams of material that are dissolved in 100 ml of the liquid at a temperature of 20° C. The partial solvent can be chosen from among acetone, methyl ethyl ketone, and mixtures of said solvents with one another or other solvents and/or a minor amount of water, and may also be an organic solvent.
A method of shaping starting solid, particulate materials comprising suspending said starting material in a liquid which is a partial solvent for said starting material to form a starting suspension, and applying ultrasonic vibrations to said starting suspension, whereby said starting material is shaped and ground to produce a final suspension of ground and rounded particles.
Dependencies are inferred from the claim text.