B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
126/12, 252/37,
B01D 9/00 (2006.01) B01J 35/00 (2006.01)
Patent
CA 1077459
NUCLEATING DEVICE AND METHOD OF PREPARING SAME Abstract of the Disclosure A nucleating device is formed of a material, such as glass, having a highly disordered lattice which has been processed to produce microcavities therein each having a size typically in the order of less than 1000 Angstroms. Solid crystals are disposed in the microcavities to aid in the crystal seeding and thereby promote crystallization of a melt or solution of a compound without supercooling. In one embodiment the nucleating device is in the form of a glass float covered with glass fibers processed so as to have microcavities with said crystals disposed in the micro- cavities. Advantageously, the crystals do not have to have the same chemical structure as the compound being crystallized. According to the method of this invention, micro- cavities are formed in a substance having highly disordered lattices by removing parts of the lattices as by leaching. At least a portion of the microcavities are then filled with solid crystals. The nucleating device may be in the form of a glass float or it may be in the form of glass fibers which surround the float.
260947
The University Of Delaware
University Of Delaware
LandOfFree
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