A catalyst, which can be used even under mild conditions and also has durability so as to enable repeated use while maintaining high activity, and with which a reduction reaction for converting an amide compound into an amine compound can be carried out, is provided by means of an amide compound hydrogenation reaction catalyst characterized in that platinum and vanadium are supported on a carrier and a method for producing an amine compound using the same.

A transesterification catalyst that is heterogeneous and a method for preparing said transesterification catalyst are provided. The catalyst can be used in a variety of transesterification reactor configurations including CSTR (continuous stirred tank reactors), ebullated (or ebullating) beds or any other fluidized bed reactors, and PFR (plug flow, fixed bed reactors). The catalyst can be used for manufacturing commercial grade biodiesel, biolubricants and glycerin.

The present invention provides the use of a metal-doped hydroxyapatite catalyst for highly selective conversion of an alcohol to an aldehyde at low temperatures. More specifically, the invention provides the use of a silver-doped hydroxyapatite catalyst for the highly selective oxidative dehydrogenation of ethanol to acetaldehyde. The present invention also provides the method for converting ethanol to acetaldehyde using a silver-doped hydroxyapatite catalyst.

Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.

Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.

Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.

Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.

A porous permanently polarized hydroxyapatite has a mean pore diameter from 10 nm to 10.000 nm. A process is used for obtaining the porous permanently polarized hydroxyapatite. A composition or material includes the porous permanently polarized hydroxyapatite. The porous permanently polarized hydroxyapatite or the composition or material can be used as a catalyst. A composition is used for preparing the porous permanently polarized hydroxyapatite.

A transesterification catalyst that is heterogeneous and a method for preparing said transesterification catalyst are provided. The catalyst can be used in a variety of transesterification reactor configurations including CSTR (continuous stirred tank reactors), ebullated (or ebullating) beds or any other fluidized bed reactors, and PFR (plug flow, fixed bed reactors). The catalyst can be used for manufacturing commercial grade biodiesel, biolubricants and glycerin.

A catalyst for preparing an unsaturated carboxylic acid or derivative thereof, the catalyst capable of preparing the unsaturated carboxylic acid or derivative thereof in a high yield over a long period of time during a dehydration reaction of a hydroxycarboxylic acid or a derivative thereof.