A process for the production of a zeolite body includes the steps of: forming a zeolite reaction mix having zeolite crystallites and water; removing water from the zeolite reaction mix to form a partially dried zeolite mass; extruding and/or cutting/breaking the partially dried zeolite mass to form a partially dried zeolite body; subjecting the partially dried zeolite bodies to a further processing step selected from rounding, drying and size classification; heating the partially dried zeolite bodies to temperatures greater than 400 C. to form calcined zeolite bodies; contacting the calcined zeolite bodies with water to form washed calcined zeolite bodies; contacting the washed calcined zeolite bodies with an ammonium ion containing solution so as to exchange sodium ions in the zeolite with ammonium ions to form cation-exchanged zeolite bodies; and heating the cation-exchanged zeolite bodies to temperatures greater than 200 C. to form zeolite bodies.

A process for the production of a zeolite body includes the steps of: forming a zeolite reaction mix having zeolite crystallites and water; removing water from the zeolite reaction mix to form a partially dried zeolite mass; extruding and/or cutting/breaking the partially dried zeolite mass to form a partially dried zeolite body; subjecting the partially dried zeolite bodies to a further processing step selected from rounding, drying and size classification; heating the partially dried zeolite bodies to temperatures greater than 400 C. to form calcined zeolite bodies; contacting the calcined zeolite bodies with water to form washed calcined zeolite bodies; contacting the washed calcined zeolite bodies with an ammonium ion containing solution so as to exchange sodium ions in the zeolite with ammonium ions to form cation-exchanged zeolite bodies; and heating the cation-exchanged zeolite bodies to temperatures greater than 200 C. to form zeolite bodies.

A shaped catalyst body for manufacturing a synthetic gas according to an aspect includes a catalyst including a carrier and a metal active particle supported on the carrier, wherein a metal oxide coating layer is present on at least a portion of surfaces of the metal active particle and carrier.

A shaped catalyst body for manufacturing a synthetic gas according to an aspect includes a catalyst including a carrier and a metal active particle supported on the carrier, wherein a metal oxide coating layer is present on at least a portion of surfaces of the metal active particle and carrier.

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium(III) oxide and chromium(VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition.

Disclosed herein is a chromium oxide catalyst composition having reduced levels of chromium (VI), methods of making a chromium oxide catalyst composition and system, and illustrative uses of the chromium oxide catalyst composition and system. The catalyst disclosed may be a gel and may comprise chromium(III) oxide and chromium(VI) oxide at an amount of about 10,000 ppm or less based on total chromium oxide contents in the chromium oxide catalyst composition.

A molded sintered body containing a mayenite type compound, an inorganic binder sintered material, and a transition metal, wherein a content of the inorganic binder sintered material is 3 to 30 parts by mass with respect to 100 parts by mass of the molded sintered body, and the molded sintered body has at least one pore peak in each of a pore diameter range of 2.5 to 20 nm and a pore diameter range of 20 to 350 nm. A method for producing the molded sintered body, including mixing a precursor of a mayenite type compound and a raw material of an inorganic binder sintered material to prepare a mixture; molding the mixture to prepare a molded body of the mixture; firing the molded body to prepare a fired product; and supporting a transition metal on the fired product to produce a molded sintered body.

A molded sintered body containing a mayenite type compound, an inorganic binder sintered material, and a transition metal, wherein a content of the inorganic binder sintered material is 3 to 30 parts by mass with respect to 100 parts by mass of the molded sintered body, and the molded sintered body has at least one pore peak in each of a pore diameter range of 2.5 to 20 nm and a pore diameter range of 20 to 350 nm. A method for producing the molded sintered body, including mixing a precursor of a mayenite type compound and a raw material of an inorganic binder sintered material to prepare a mixture; molding the mixture to prepare a molded body of the mixture; firing the molded body to prepare a fired product; and supporting a transition metal on the fired product to produce a molded sintered body.

A pillar-shaped honeycomb structure including an outer peripheral side wall, and a plurality of partition walls disposed on an inner peripheral side of the outer peripheral side wall, the plurality of partition walls partitioning a plurality of cells forming flow paths from a first end surface to a second end surface, wherein an average pore diameter of the partition walls measured by a mercury porosimeter is 10 m or less, and when a cross section of the plurality of partition walls is observed with an X-ray microscope and porosities (%) of each partition wall is measured in a thickness direction from one surface to the other surface of each partition wall, an average porosity of each partition wall is 40 to 70%, and a difference between a maximum value and a minimum value of the porosity of each partition wall is 11% or less.

The invention relates to a method for producing a metal-foam body, comprising the steps of (a) providing a metal-foam body A, which consists of nickel, cobalt, copper, or alloys or combinations thereof, (b) applying an aluminum-containing material MP to metal-foam body A so as to obtain metal-foam body AX, (c) thermally treating of metal-foam body AX, with the exclusion of oxygen, to achieve the formation of an alloy between the metallic components of metal-foam body A and the aluminum-containing material MP so as to obtain metal-foam body B, wherein the duration of the thermal treatment is chosen in dependence on the temperature of the thermal treatment and the temperature of the thermal treatment is chosen in dependence on the thickness of the metal-foam body AX. The invention also relates to the metal-foam bodies obtainable by the methods according to the invention and to the use thereof as catalysts for chemical transformations.