| abstract |
the present invention provides a method for producing a silica composite in the steps of: preparing a mixture of raw materials containing silica and zeolite; drying the mixture of raw materials to obtain a dried product; and calcining the dried product, in which the method comprises the step of letting the mixture of raw materials contain phosphoric acid and / or phosphate or placing a solution of phosphoric acid and / or phosphate in contact with the zeolite and / or the dried product, or a combination thereof, to thereby adjust a phosphorus content in the silica composite of 0.01 to 1.0 mass% based on the total mass of the silica composite. |