The invention relates to a method for producing a raw material for the production of refractory ceramic products, a raw material produced by said method, and a raw material for producing refractory ceramic products.

The invention relates to a method for producing a raw material for the production of refractory ceramic products, a raw material produced by said method, and a raw material for producing refractory ceramic products.

The present invention relates to a dry refractory particulate composition comprising a zeolithic microstructure, to a green body and to a refractory lining formed therefrom, and to uses thereof.

A process for preparing a refractory brick, comprises: mixing a refractory aggregate and a binder composition to obtain a refractory mixture wherein the binder composition comprises:

(a) carbohydrate reactant(s) comprising reducing sugar(s) or carbohydrate reactant(s) that yield reducing sugar(s) in situ under thermal conditions and nitrogen-containing reactant(s) and/or

(b) curable reaction product(s) of reducing sugar(s) and nitrogen-containing reactant(s) pressing the refractory mixture to obtain a moulded refractory brick; and firing the moulded refractory brick.

A hard mask film 2 provided on substrate 1 is formed by tin-containing chromium-containing material. In the chromium-containing material including tin, which forms the hard mask film 2, the etching resistance to fluorine-containing dry etching is equal to or higher than the etching resistance of the tin-free chromium-containing material, and it shows a significantly high etching rate as compared with a chromium-containing material free of tin under conditions for chlorine-containing dry etching. As a result, the time for chlorine-containing dry etching is shortened, and damage to a resist pattern is reduced. Thus, high-precision pattern transfer can be performed. The present invention provides a novel technique for increasing etching process-ability by increasing a dry-etching rate of a hard mask film made of a chromium-containing material while assuring a hard mask function of the hard mask film.

A method for treating refractory ceramic products is described herein. The method includes providing a refractory ceramic product, comprising magnesia and at least one of the following salts: one or more alkali salts and one or more alkaline earth salts. The method also includes providing a water-based liquid, combining the refractory ceramic product with the liquid, and separating the refractory ceramic product and the liquid.

A method for treating refractory ceramic products is described herein. The method includes providing a refractory ceramic product, comprising magnesia and at least one of the following salts: one or more alkali salts and one or more alkaline earth salts. The method also includes providing a water-based liquid, combining the refractory ceramic product with the liquid, and separating the refractory ceramic product and the liquid.

The invention relates to a method for producing a raw material for the production of refractory ceramic products, a raw material produced by said method, and a raw material for producing refractory ceramic products.