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19 条记录 (耗时 0.022 秒)

    STABLISED COMPOSITIONS COMPRISING OLEFINS
    2.
    发明授权
    STABLISED COMPOSITIONS COMPRISING OLEFINS 无效
    稳定的组合物含烯烃

    公开(公告)号：EP1133460B1

    公开(公告)日：2005-08-10

    申请号：EP99957297.7

    申请日：1999-11-11

    申请人： ONDEO NALCO ENERGY SERVICES, L.P.

    发明人： WINTER, Roland, Arthur, Edwin

    IPC分类号： C07C7/20

    CPC分类号： C09K19/20 ,  C07C7/20 ,  C07C11/02

    摘要： Subject of the invention is a composition stabilized against premature polymerization comprising a) a light olefin monomer, and an effective polymerization inhibiting amount of b) at least one phenylenediamine of formula (I) wherein R1, R2, and R3 are the same or different and are hydrogen, straight or branched chain alkyl of 1 to 20 carbon atoms, straight or branched chain alkyl of 1 to 20 carbon atoms which is substituted by one to three aryl groups, aryl of 1 to 12 carbon atoms, or aryl of 1 to 12 carbon atoms which is substituted by one to three alkyl groups of 1 to 6 carbon atoms; and c) at least one nitroxide of formula (II) wherein R4 and R5 are independently alkyl of 1 to 4 carbon atoms or are together pentamethylene; and Z1 and Z2 are each methyl or Z1 and Z2 together form a linking moiety which may or may not contain heteroatoms or carbonyl groups and which additionally may be substituted by hydroxy, cyanohydrin, amino, alkoxy, amido, ketal, carboxy, hydantoin, carbamate, or a urethane group. A further subject of the invention is a method for inhibiting the premature polymerization of reactive light olefins and the use of a phenylendiamine together with at least one nitroxide to prevent polymerization of reactive light olefins.

    REDUCING UNDESIRED POLYMERIZATION IN HYDROCARBON CRACKING PROCESSES
    3.
    发明公开
    REDUCING UNDESIRED POLYMERIZATION IN HYDROCARBON CRACKING PROCESSES 有权
    异径烃类的不需要的聚合开裂

    公开(公告)号：EP1337604A1

    公开(公告)日：2003-08-27

    申请号：EP01950872.0

    申请日：2001-07-05

    申请人： ONDEO NALCO ENERGY SERVICES, L.P.

    发明人： MCCLAIN, Robert, D. ,  PATEL, Natu, R. ,  GLATH, Raymond, M.

    IPC分类号： C10G9/12 ,  C10G9/16

    CPC分类号： C10G75/04 ,  C10G9/00 ,  C10G19/02 ,  C10G70/06 ,  Y02P30/464 ,  Y10S585/95

    摘要： This invention is a method to inhibit the polymerization of carbonyl compounds in a basic wash unit operation in a hydrocarbon cracking process, wherein a compound selected from the group consisting of alpha-amino acids and esters thereof and amides thereof and salts thereof and mixtures thereof or Mercaptoacetic acid and alkyl esters thereof, is added either to a stream comprising a carbonyl compound or to the basic wash unit operation; wherein the compound is selected such that it remains water-soluble and base-soluble and does not flocculate in the stream or in the basic wash unit operation; and wherein the stream is contacted with the compound either before or at the same time as the stream enters the basic wash unit operation; or wherein the compound is added to the basic wash unit operation before or while the stream enters the basic wash unit operation.

    PHOSPHITE COKE INHIBITORS FOR EDC-VCM FURNACES
    4.
    发明公开
    PHOSPHITE COKE INHIBITORS FOR EDC-VCM FURNACES 审中-公开
    用于EDC-VCM炉的磷酸盐焦炭抑制剂

    公开(公告)号：EP1313823A1

    公开(公告)日：2003-05-28

    申请号：EP01952337.2

    申请日：2001-06-29

    申请人： ONDEO NALCO ENERGY SERVICES, L.P.

    发明人： TONG, Youdong

    IPC分类号： C10G9/16 ,  C10G75/04 ,  C07C17/25

    CPC分类号： C10G9/16 ,  C07C17/25 ,  Y10S585/95 ,  C07C21/06

    摘要： A method of reducing the formation of coke deposits on the heat-transfer surfaces of an ethylene dichloride to vinyl chloride pyrolysis furnace comprising exposing the heat transfer surfaces of said pyrolysis furnace to a phosphite selected from the group consisting of phosphites with the general formula: wherein A1, A2 and A3 are selected from the group consisting of OR1, -SR2 and Cl, wherein R1 and R2 are selected from the group consisting of alkyl, aryl, alkylaryl and arylalkyl, wherein A1, A2 and A3 may be the same or different, provided that at least one of A1, A2, and A3 is not Cl.

    摘要翻译： 一种减少在二氯乙​​烷至氯乙烯热解炉的传热表面上形成焦炭沉积物的方法，该方法包括将所述热解炉的传热表面暴露于亚磷酸盐中，该亚磷酸盐选自具有以下通式的亚磷酸盐： A1，A2和A3选自OR1，-SR2和Cl，其中R1和R2选自烷基，芳基，烷芳基和芳烷基，其中A1，A2和A3可以相同或不同 条件是A1，A2和A3中的至少一个不是C1。

    PHOSPHINE COKE INHIBITORS FOR EDC-VCM FURNACES
    5.
    发明公开
    PHOSPHINE COKE INHIBITORS FOR EDC-VCM FURNACES 有权
    用于EDC-VCM炉的磷酸焦炭抑制剂

    公开(公告)号：EP1311713A1

    公开(公告)日：2003-05-21

    申请号：EP01950720.1

    申请日：2001-06-29

    申请人： ONDEO NALCO ENERGY SERVICES, L.P.

    发明人： TONG, Youdong

    IPC分类号： C23F11/00 ,  C08F114/06

    CPC分类号： C10G75/04 ,  B01J19/0026 ,  B01J2219/00247 ,  C07C17/00 ,  C10B43/14 ,  C10G9/16 ,  Y10S585/95 ,  C07C21/06

    摘要： A method of reducing the formation of coke deposits on the heat-transfer surfaces of an ethylene dichloride to vinyl chloride pyrolysis furnace comprising exposing the heat transfer surfaces of said pyrolysis furnace to a phosphine selected from the group consisting of phosphines with the general formula (I): wherein R1, R2 and R3 are selected from the group consisting of hydrogen, chlorine, alkyl, aryl, alkylaryl and arylalkyl, wherein R1, R2 and R3 can be the same or different.

    摘要翻译： 一种减少二氯乙烷至氯乙烯热解炉的传热表面上焦炭沉积物形成的方法，包括将所述热解炉的传热表面暴露于选自通式（I）的膦的膦中， ）：其中R1，R2和R3选自氢，氯，烷基，芳基，烷芳基和芳烷基，其中R1，R2和R3可以相同或不同。

    Phosphorus-sulfur based antifoulants
    6.
    发明公开
    Phosphorus-sulfur based antifoulants 审中-公开
    用于防止Fosfor和硫的基础上存款

    公开(公告)号：EP1085074A3

    公开(公告)日：2001-11-07

    申请号：EP00114799.0

    申请日：2000-07-10

    申请人： ONDEO NALCO ENERGY SERVICES, L.P.

    发明人： Tong, Youdong

    IPC分类号： C10G9/16 ,  C10G75/04

    CPC分类号： C10G75/04 ,  C10G9/16

    摘要： This invention is directed to a method of inhibiting fouling of heat transfer surfaces in contact with petroleum or hydrocarbon feedstocks comprising contacting the heat transfer surfaces with an effective amount of a thermally-treated phosphorous-sulfur compound and to methods and apparatus for preparing and contacting the thermally-treated phosphorous-sulfur compounds with the heat transfer surfaces.