Patent ID: 7001454
Filing Date: 2006-02-21
Classification: C04B

Abstract:
1. A white portland cement clinker, with the capacity to fix sulfur derived from an organic fuel having a high sulfur content, greater than 5% S, used as a fuel in the calcination of said clinker, said clinker additionally exhibiting reduced fuel consumption during such calcination and useful for producing a fast setting cement, and comprising amounts of clinker phases in percentage by weight, as follows: 3CaO.SiO 2CaO.SiO 3CaO.Al CaO.SO 4CaO.3Al 11CaO.7Al Total % CaF % Fe and a SO 3 content between 1.5 and 5% by weight obtained through the calcination of a raw meal comprising CaO, SiO 2 , Al 2 O 3 and CaF 2 , and using an organic fuel with a sulfur content higher than 5% as the main source of the clinker's SO 3 content, at temperatures between 2192° F. and 2462° F. without the addition of any SO 3 -containing additive to the raw meal as a main source of SO 3 content in the clinker.