Patent ID: 6090197
Filing Date: 2000-07-18
Classification: B24C,C04B,Y02P

Abstract:
A method for reclaiming and recycling a calcium carbonate waste product from a sugar beet refining process, said method comprising the steps of:providing a feed stock which comprises particulate calcium carbonate waste produced in a sugar beet refining process;drying said feed stock;sizing said feed stock so as to separate a particulate fraction therefrom, said particulate fraction having a size range of 10.times.0 mesh;employing said particulate fraction as a medium in a blast cleaning process, whereby said blast cleaning process produces a volume of contaminated blast medium; andheating said contaminated blast medium in a cement kiln along with at least one other component of a cement composition, said component being selected from the group consisting of: clay, marl, bauxite, slag, limestone, and combinations thereof, at a temperature sufficient to produce a cement clinker including therein calcium which was derived from said feed stock.