Uso de composiciones de alimentación en la preparación de ácido metacrílico mediante oxidación

• Main Author: Balduf, Torsten
• Format: Patent
• Language: Spanish
• Published: 20.03.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

Un procedimiento para la producción de al menos un producto de oxidación de C4 que es al menos uno de metacroleína y ácido metacrílico, que comprende las etapas de: a) proporcionar una composición de alimentación que comprende isobutileno como compuesto de alimentación principal, y al menos un compuesto de alimentación adicional seleccionado de alcohol tercbutílico, metil terc-butil éter, etil terc-butil éter; b) someter la composición de alimentación a una zona de reacción catalítica que comprende al menos una etapa de oxidación, y obtener una fase de reacción que comprende el al menos un producto de oxidación de C4, en el que la composición de alimentación comprende dicho compuesto de alimentación principal y dicho al menos un compuesto de alimentación adicional en una cantidad en un intervalo de 0,0005 a 5% en peso, basado en el peso total de los compuestos de alimentación en la composición de alimentación, y la composición de alimentación proporcionada en la etapa a) se obtiene disociando metil terc-butil éter o etil terc-butil éter. The invention relates to a process for production of at least one C 4 oxidation product, comprising the steps: a) providing a feed composition comprising at least two feed compounds selected from tert -butyl alcohol, methyl tert -butyl ether and isobutylene; b) subjecting the feed composition to a catalytic reaction zone comprising at least one oxidation stage and obtaining a reaction phase comprising the C 4 oxidation product, to a C 4 oxidation product obtainable therefrom, to an apparatus for production of at least one C 4 oxidation product, a process carried out in the apparatus,to a methacrylic acid, to a polymer comprising methacrylic acid and process for production thereof, to methyl methacrylate and a process for production thereof, to a methacrylate ester and a process for production thereof, to a polymer comprising at least one of methacrylic acid, methyl methacrylate and a methacrylate ester and a process for production thereof, to a composition comprising at least one of methacrylic acid, methyl methacrylate, a methacrylate ester and a polymer comprising at least one of methacrylic acid, methyl methacrylate and a methacrylate ester, to chemical products, and to the use of at least one of methacrylic acid, methyl methacrylate, a methacrylate ester, a polymer comprising at least one of methacrylic acid, methyl methacrylate and a methacrylate ester and a composition comprising at least one of these in chemical products