Phosphate bonded high alumina bricks P and phosphate bonded anti-wear high alumina bricks PA use bauxite as aggregate,added with phosphate acid and phosphate salt, being pressed and sintered.The products antiwearing and anti-spalling, as well as anti erosion of K,Na,S,CL and alkaine salts.Special phosphate bonded alumina bricks TP,basing on phosphate bonded alumina bricks, by the additive to improve the load softening temperature of products.They mainly used for pheheaters, buring zone, hoops,and coolers.