Patent ID: 8123853

Claim:
A method for improving the insulating character and/or penetration resistance of a liner in contact with material in a manufacturing process or during material transport, comprising: lining a rotary kiln and/or processing equipment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium aluminate clinker having the formula C n A x , wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said calcium aluminate clinker has from zero to less than about fifty weight percent C 12 A 7 , and wherein greater than 98 weight percent of said calcium aluminate clinker having a particle size ranging from 325 mesh to +10 mesh, for forming a liner prior to contacting said equipment with the material and for improving the insulating character and/or penetration resistance of said liner.