Catalyst system for producing aromatic carbonates
    3.
    发明授权
    Catalyst system for producing aromatic carbonates 失效
    用于生产芳族碳酸酯的催化剂体系

    公开(公告)号:US06355597B1

    公开(公告)日:2002-03-12

    申请号:US09559855

    申请日:2000-04-27

    CPC classification number: C07C68/005 C07C69/96

    Abstract: A catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing bismuth. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.

    Abstract translation: 用于从芳族羟基化合物经济地生产芳族碳酸酯的催化剂体系。 在一个实施方案中,本发明提供了包含催化量的含有铋的无机助催化剂的羰基化催化剂体系。 在各种替代实施方案中,羰基化催化剂体系可以包括有效量的钯源和有效量的卤化物组合物。 另外的替代实施方案可以包括催化量的各种无机助催化剂组合。

    Method and apparatus for using DFSS to manage a research project

    公开(公告)号:US06725183B1

    公开(公告)日:2004-04-20

    申请号:US09387332

    申请日:1999-08-31

    Abstract: In an exemplary embodiment, an application of combinatorial materials development with minimum materials development, minimum variance, and maximum integration is provided. The embodiment is directed to a method of project development of a combinatorial materials development process using DFSS techniques having four major elements. The first element is the use of a design for six sigma (DFSS) process mapping to convert a complex and disorganized process structure to an organized structure that can be further analyzed. The second element comprises the use of quality function deployment houses as a method of flowing critical to quality characteristics (CTQ) through a research project. The third element comprises a transfer function that connects the overall steps of the project to the output which is measured as variability not as mean. Score cards are used as the “function” to total the variabilities of each process step. The final element comprises an extension of design of experiment (DOE) techniques.

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