Process for the preparation of aryl carbonates
    1.
    发明授权
    Process for the preparation of aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号:US5602271A

    公开(公告)日:1997-02-11

    申请号:US494111

    申请日:1995-06-23

    CPC分类号: C07C68/02

    摘要: Carbonates with aromatic ester groups are prepared by reaction of aromatic monohydroxy compounds with phosgene or with chloroformic acid esters of aromatic monohydroxy compounds, whereby operations are carried out at a temperature in the range of 50.degree. to 450.degree. C. and at a pressure in the range of 0.05 to 20 bar in the presence of metallates of the elements of groups IIIa, IVa, Va, VIa, IIIb, IVb, Vb, VIb, VIIb, and VIII of the Mendeleev periodic system as heterogeneous catalysts.

    摘要翻译: 具有芳族酯基的碳酸酯通过芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯的反应制备,由此操作在50-450℃的温度和 在作为多相催化剂的Mendeleev周期系统的IIIa,IVa,Va,VIa,IIIb,IVb,Vb,VIb,VIIb和VIII族元素的金属盐存在下,其范围为0.05至20巴。

    Method for preparing polyether polyols
    2.
    发明授权
    Method for preparing polyether polyols 失效
    制备聚醚多元醇的方法

    公开(公告)号:US06350920B1

    公开(公告)日:2002-02-26

    申请号:US09485507

    申请日:2000-03-20

    IPC分类号: C07C4311

    摘要: Polyether polyols can be prepared by reacting polyols with epoxides in the presence of basic catalysts, by treating the polyether polyols containing the basic catalysts with OH-functional solid compounds of metals of groups III to VIII of the periodic system of the elements (Mendeleyev), the compounds being insoluble in the polyether polyols and having BET surface areas of from 10 to 1000 m2/g, isolating the solid inorganic compounds laden with the basic catalysts from the polyether polyol and using them in the reaction of polyols with epoxides, or bringing the isolated inorganic compounds laden with the basic catalysts into contact with the polyols that are to be used in the reaction with epoxides, separating those polyols from the inorganic compounds and delivering them to the reaction with epoxides.

    摘要翻译: 聚醚多元醇可以通过在碱性催化剂的存在下使多元醇与环氧化物反应来制备,通过用含有元素(Mendeleyev)的周期体系的III-VIII族金属的OH-官能固体化合物处理含有碱性催化剂的聚醚多元醇, 所述化合物不溶于所述聚醚多元醇并具有10至1000m 2 / g的BET表面积,从所述聚醚多元醇中分离含有碱性催化剂的固体无机化合物,并将其用于多元醇与环氧化物的反应,或将 分离的无机化合物与碱性催化剂接触,与用于与环氧化物的反应中使用的多元醇接触,将这些多元醇与无机化合物分离并将其输送到与环氧化物反应。

    Process for preparing aryl carbonates
    8.
    发明授权
    Process for preparing aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号:US5473094A

    公开(公告)日:1995-12-05

    申请号:US271488

    申请日:1994-07-07

    CPC分类号: C07C68/02

    摘要: Carbonates with aromatic ester groups may be prepared by reacting aromatic monohydroxy compounds with phosgene or with chloroformates of aromatic monohydroxy compounds, wherein reaction takes place at a temperature in the range 50.degree. to 350.degree. C. in the presence of aluminum oxides as heterogeneous catalysts.

    摘要翻译: 具有芳族酯基的碳酸酯可以通过使芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯反应制备,其中在作为多相催化剂的氧化铝存在下,在50℃至350℃的温度下进行反应。

    Process for the production of aryl carbonates
    10.
    发明授权
    Process for the production of aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号:US5679825A

    公开(公告)日:1997-10-21

    申请号:US583882

    申请日:1996-01-11

    CPC分类号: C07C68/02

    摘要: Carbonates with aromatic ester groups may be produced by reacting aromatic monohydroxy compounds with phosgene or with chlorocarbonates of aromatic monohydroxy compounds, wherein a temperature in the range from 50.degree. to 450.degree. C. and a pressure in the range from 0.05 to 20 bar are used in the presence of hard materials with metal-like properties (ceramic precursors) as heterogeneous catalysts.

    摘要翻译: 具有芳族酯基的碳酸酯可以通过使芳族单羟基化合物与光气或芳族单羟基化合物的氯碳酸酯反应来制备,其中使用温度在50℃至450℃的温度和0.05至20巴的压力范围内 在具有金属状特性的硬质材料(陶瓷前体)作为非均相催化剂的存在下。