Patent ID: 7018566
Filing Date: 2006-03-28
Classification: B01D,C01B,C01G,C01P,H01M,Y02E,Y02P

Abstract:
1. A compound of formula (1): wherein: A is at least one trivalent rare earth, trivalent bismuth, trivalent antimony or trivalent arsenic; A′ is at least one alkali, alkaline-earth, tin, lead, samarium, europium, erbium, thulium, ytterbium, thorium, uranium, cerium, praseodymium or terbium element; B is at least one hexavalent element selected from groups VIA, VIIA, VIII and VIB with the further proviso that B is not oxygen; B′ is at least one lithium, sodium, magnesium, calcium, scandium, yttrium element, a rare earth element with atomic numbers of 63 to 71, an element from groups IVA to IIB with an oxidation number of less than 6, aluminum III, silicon IV, gallium III, germanium IV, indium III, tin IV, phosphorus V, antimony V or bismuth V element; X is at least one sulfur, fluorine or chlorine anion; and x, y and z satisfy the following equations: with the further proviso that, when A is lanthanum and B is tungsten or molybdenum, at least one of x, y or z is different from 0; said compound having a cationic cubic or pseudo-cubic-β-SnWO