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Title: Methods of use of calcium hexa aluminate refractory linings and/or chemical barriers in high alkali or alkaline environments

Patent ·
OSTI ID:1107609

A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA.sub.6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C.sub.12A.sub.7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from -20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Assignee:
Westmoreland Advanced Materials, Inc. (Monessen, PA)
Patent Number(s):
8,563,083
Application Number:
11/901,909
OSTI ID:
1107609
Country of Publication:
United States
Language:
English

References (13)

Gasification of black liquor patent July 1987
Plasma Whirl Reactor Apparatus and Methods of Use patent-application February 2003
Calcium aluminate based refractory hydraulic binder and its process of preparation patent July 1979
Highly reactive hydraulic binder for the preparation of building, construction and raw materials patent April 1992
Settable mineral clinker compositions patent January 1989
Portland cement clinker and use thereof patent December 1998
Process for dyeing concrete patent August 1990
Cryolite resistant refractory liner patent April 1998
Cementitious compositions and method patent December 1991
Method of sintering calcium aluminate raw mixes patent March 1976
Clinker hydraulic binder, use and method for making same patent May 2004
Method of chromizing large size articles patent October 1990
Portland cement clinker and portland cement patent October 1994

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