CATALYST AND CATALYTIC PROCESS FOR THE ETHERIFICATION/REDUCTION OF FURFURYL DERIVATIVES TO TETRAHYDROFURFURYL ETHERS
申请人:CORMA CANÓS Avelino
公开号:US20150353518A1
公开(公告)日:2015-12-10
The invention relates to a method for producing tetrahydrofurfuryl ethers, characterised in that it involves carrying out consecutive etherification/reduction reactions based on a compound containing at least one furan ring, in the presence of at least one alcohol and at least one catalyst, optionally in the presence of H
2
. The catalytic process can be carried out in a cascade reaction (“one-pot”), operating under soft reaction conditions and without a solvent.
The present application relates to a process for producing ethylene polymer in a polymerization process comprising polymerisation of ethylene, optionally with comonomers selected from C3-C20-alpha-olefins, preferably selected from C4-C10-alpha-olefins, in the presence of a Ziegler-Natta catalyst under polymerisation conditions in at least one polymerisation stage carried out in a solution, slurry or gas-phase reactor or in combinations thereof, wherein the Ziegler-Natta catalyst comprises (A) a solid Ziegler-Natta catalyst component and (B) a cocatalyst, wherein the solid Ziegler-Natta catalyst component (A) comprises a solid support of a Mg compound, a transition metal of Group 4 to 6 and an internal electron donor.