Method for Producing Aldehyde
    8.
    发明公开

    公开(公告)号:US20240025831A1

    公开(公告)日:2024-01-25

    申请号:US18255451

    申请日:2021-12-02

    IPC分类号: C07C45/50 C07C51/16 B01J23/75

    摘要: A method for producing 3,5,5-trimethylhexanal by allowing diisobutylene (DIB), carbon monoxide and hydrogen to react with one another in the presence of a cobalt-based catalyst, comprising: a step of allowing DIB to react with carbon monoxide and hydrogen in the presence of a cobalt-based catalyst until a convention of DIB reaches 50 to 85% (first stage reaction step); a step of separating unreacted DIB from a reaction product obtained in the first stage reaction step (unreacted DIB separation step); and a step of allowing the unreacted DIB separated to react with carbon monoxide and hydrogen in the presence of a cobalt-based catalyst (second stage reaction step).

    Refrigerating machine oil composition and working fluid composition for refrigerating machine using same

    公开(公告)号:US10647901B2

    公开(公告)日:2020-05-12

    申请号:US15764741

    申请日:2016-09-29

    摘要: Provided is a refrigerating machine oil composition for a mixed refrigerant comprising difluoromethane, the composition comprising a polymer (A) below and an ester (B) of polyhydric alcohol(s) with aliphatic monocarboxylic acid(s).The polymer (A): a polymer which is obtained by polymerizing monomer(s) consisting of at least one monomer of monosubstituted ethylenes and disubstituted ethylenes, and in which a ratio of a monomer represented by the following general formula (I): wherein R1 represents an alkyl group having 1 to 14 carbon atoms, R2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and the sum of carbon numbers in R1 and R2 is 2 to 14, is 75 to 100% by mass based on a total mass of monomers constituting the polymer.