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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US42357092 Ago 197825 Nov 1980Bureau de Recherches Geologiques et MinieresSelective flocculation process for treating fines of phosphate ores
US46907523 Abr 19851 Sep 1987Resource Technology AssociatesSelective flocculation process for the recovery of phosphate
US478326317 Jun 19868 Nov 1988Detoxification process
US514359929 Jul 19911 Sep 1992Kaolin Industries, Ltd.Process for refining kaolin
US53119979 Dic 199217 May 1994Engelhard CorporationSelective separation of finely-divided minerals by addition of selective collector reagent and centrifugation
US535812021 Mar 199425 Oct 1994Engelhard CorporationSelective separation of finely-divided minerals by addition of selective collector reagent and centrifugation
US55358907 Dic 199416 Jul 1996Engelhard CorporationMethod for separating mixture of finely divided minerals
US568831531 Jul 199618 Nov 1997Engelhard CorporationColored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process
US680524219 Dic 200119 Oct 2004ARR-MAZ Products, L.P.Method of reducing phosphate ore losses in a desliming process