A method for manufacturing a ceramic tile may involve providing a green tile having at least a green body with an upper surface. At least a first surface covering may be provided on the upper surface of the green body. The green tile may be fired to obtain a ceramic tile having a surface structure on its upper surface. At least one sinking agent may be applied on the upper surface of the green tile before providing the first surface covering. The sinking agent may determine the surface structure.

An injection element (10) for a gas injection system (1) inside a regenerator of a fluid catalytic cracking unit, said injection element defining a flow passage (12) and being arranged so as to be able to be fastened to a support (11) so that said flow passage opens on one side into a cavity and on the other side into a fluidized catalyst bed, characterized in that said injection element is made of ceramic material.

Method and system for decorating a base ceramic article (CB) having a surface to be decorated. The decoration system comprises: a first printing assembly for applying a first layer of adhesive material on at least part of the surface; a digital depositing assembly for depositing a second layer comprising granular material or enamel atomized particles on the first layer to form an at least partially relief pattern on the surface; a detection assembly of such at least partially relief pattern; a second printing assembly, operable based on the data detected by the detection assembly, to form a defined image on the at least partially relief pattern; a dryer configured to dry the base ceramic article (CB) and arranged between the digital depositing assembly and the second printing assembly; and a firing kiln.

An injection element (10) for a gas injection system (1) inside a regenerator of a fluid catalytic cracking unit, said injection element defining a flow passage (12) and being arranged so as to be able to be fastened to a support (11) so that said flow passage opens on one side into a cavity and on the other side into a fluidized catalyst bed, characterized in that said injection element is made of ceramic material.

A method of manufacturing a separation membrane structure comprising a step of forming a first to n.sup.th zeolite membranes on a surface of a porous substrate by n repetitions (wherein n is an integer greater than or equal to 2) of formation of a zeolite membrane by a method of hydrothermal synthesis. The following formula (1) is established in relation to the step of forming the first to the n.sup.th zeolite membranes. (Formula 1) N.sub.1/N.sub.0+0.1T.sub.2n/T.sub.12N.sub.1/N.sub.0+2 (Wherein, N.sub.1 denotes a permeation rate of a predetermined gas in the substrate after formation of the first zeolite membrane, N.sub.o denotes a permeation rate of a predetermined gas in the substrate before formation of the first zeolite membrane, T.sub.1 is a time required for formation of the first zeolite membrane, and T.sub.2n is a total time required for formation of the second to the n.sup.th zeolite membranes.)

A cutting tool for performing cutting operations on a workpiece when the cutting tool is rotated about a central axis by a machine tool, the cutting tool includes a generally cylindrical body disposed about the central axis. The generally cylindrical body includes a first end and an opposite second end. The cutting tool further includes a cutting portion and a mounting portion. The cutting portion is disposed at or about the first end of the generally cylindrical body and includes a number of cutting edges structured to engage the workpiece during cutting operations. The mounting portion is disposed at or about the opposite second end of the generally cylindrical body and is structured to be coupled to the machine tool. At least a portion of the generally cylindrical body comprises a molded portion formed via a molding process about the cutting portion in a manner that couples the cutting portion to the generally cylindrical body.