Composition Comprising an Oxidic Substrate Material Containing Si and a Material Supported on the Oxidic Substrate Material

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention discloses a catalyst composition based on a silicon-containing oxidic substrate (such as silica or alumina-silica), onto which is supported a mixture containing phosphorus, oxygen, at least one metal from groups 8 to 11 of the periodic table (such as Ru, Rh, Pd, Pt, Ag, Au, etc.), and optionally one or more additional metals or metalloids (such as W, Te, Sb, or V). The composition is specifically tailored for the selective partial oxidation of hydrocarbons, like alkanes and alkenes (e.g., propane, propene, n-butane), into valuable oxygenates such as maleic anhydride, acrolein, or acrylic acid. The patent also claims efficient and simplified methods for catalyst preparation, avoiding energy- and resource-intensive steps, and enabling good catalytic performance at comparatively low temperatures.

Use CasesContent extracted from patent full text and abstract with AI.

• Industrial production of maleic anhydride from n-butane via selective partial oxidation.
• Manufacture of acrolein and acrylic acid from propane or propene in chemical plants.
• Catalytic converters or reactors for selective oxidation reactions in petrochemical processes.
• Potential use in processes requiring vanadium-free catalysts for environmental or cost reasons.
• Custom catalyst supports for fine-tuning selectivity and activity in hydrocarbon oxidation.
• Recycling and recovery of noble metals from spent catalysts for resource optimization.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables highly selective production of valuable chemicals (e.g., acrylic acid, acrolein, maleic anhydride) from simple hydrocarbons.
• Avoids or greatly reduces the use of vanadium, addressing toxicity and regulatory concerns and enabling vanadium-free processes.
• Simple, cost-effective preparation routes avoiding energy-intensive calcination or combustion synthesis steps.
• Allows catalyst operation at lower temperatures, reducing energy consumption and side-reactions (e.g., total oxidation to CO2 and CO).
• High flexibility in catalyst composition, allowing optimization for different target reactions and raw materials.
• Facilitates efficient use and recovery of noble metals, supporting circular economy and resource saving.
• Enhanced catalyst stability and tunability via choice of support (e.g., mixed oxides, coated silica), which also inhibits less active or undesirable crystal phases.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a composition comprising an oxidic substrate material containing Si and a material supported on the oxidic substrate material, wherein the supported material comprises phosphorous, oxygen, at least one metal M1 from groups 8 to 11 of the periodic table of the elements and optionally at least one element M2 from the metals and metalloids of the periodic table of the elements, wherein the molar ratio x(M1) of the at least one metal M1 is in the range 0