公开(公告)号：US20070142974A1

公开(公告)日：2007-06-21

申请号：US11670338

申请日：2007-02-01

申请人： Peter CHIPMAN ,  Jeffrey Kobe ,  Arjan Te Raa ,  Leonid Rubinstein ,  Brian Vanderwilp ,  Thijs Wermink

发明人： Peter CHIPMAN ,  Jeffrey Kobe ,  Arjan Te Raa ,  Leonid Rubinstein ,  Brian Vanderwilp ,  Thijs Wermink

IPC分类号： G06F19/00

CPC分类号： C07D301/10

摘要： A process for the epoxidation of an olefin, which process comprises reacting a feed comprising the olefin, oxygen and a reaction modifier in the presence of a highly selective silver-based catalyst at a reaction temperature T, and with the reaction modifier being present in a relative quantity Q which is the ratio of an effective molar quantity of active species of the reaction modifier present in the feed to an effective molar quantity of hydrocarbons present in the feed, and which process comprises the steps of: operating at a first operating phase wherein the value of T is T1 and the value of Q is Q1, and subsequently operating at a second operating phase at a reaction temperature which is different from the reaction temperature employed in the first operating phase, such that the value of T is T2 and the value of Q is substantially Q2, whereby Q2 is determined by calculation and Q2 is defined by the formula Q2=Q1+B(T2−T1), wherein B denotes a constant factor which is greater than 0; a reaction system suitable for performing the process for the epoxidation of an olefin; a computer program product which comprises a computer readable program recorded on a computer readable medium, suitable for instructing a data processing system of a computer system to execute calculations for the process for the epoxidation of an olefin; and a computer system which comprises the computer program product and a data processing system.

摘要翻译： 一种烯烃环氧化方法，该方法包括在高反应温度T下在高度选择性的银基催化剂存在下使包含烯烃，氧和反应调节剂的进料反应，并且反应改性剂存在于 相对量Q是进料中存在的反应改性剂的活性物质的有效摩尔量与进料中存在的有效摩尔量的烃的比例，该方法包括以下步骤：在第一操作阶段 T的值为T 1 N且Q的值为Q 1 N 1，随后在与所用反应温度不同的反应温度下在第二操作阶段 在第一操作阶段中，使得T的值为T 2，并且Q的值基本上为Q 2，其中Q 2是 通过计算确定，并且Q <2>由公式<β在线定义 -formulae description =“In-line Formulas”end =“lead”？> Q＆lt; 2＆gt; = Q 1＆lt; 1＆gt; + B（T 2＆lt; 2＆gt; <？in-line-formula description =“In-line formula”end =“tail”？>其中B表示大于0的常数因子; 适于进行烯烃环氧化方法的反应体系; 计算机程序产品，其包括记录在计算机可读介质上的计算机可读程序，适于指示计算机系统的数据处理系统执行烯烃的环氧化方法的计算; 以及包括计算机程序产品和数据处理系统的计算机系统。

公开(公告)号：US20070129557A1

公开(公告)日：2007-06-07

申请号：US11670335

申请日：2007-02-01

申请人： Peter Chipman ,  Jeffrey Kobe ,  Arjan Te Raa ,  Leonid Rubinstein ,  Brian Vanderwilp ,  Thijs Wermink

发明人： Peter Chipman ,  Jeffrey Kobe ,  Arjan Te Raa ,  Leonid Rubinstein ,  Brian Vanderwilp ,  Thijs Wermink

IPC分类号： C07D301/03

CPC分类号： C07D301/10

摘要： A process for the epoxidation of an olefin, which process comprises reacting a feed comprising the olefin, oxygen and a reaction modifier in the presence of a highly selective silver-based catalyst at a reaction temperature T, and with the reaction modifier being present in a relative quantity Q which is the ratio of an effective molar quantity of active species of the reaction modifier present in the feed to an effective molar quantity of hydrocarbons present in the feed, and which process comprises the steps of: operating at a first operating phase wherein the value of T is T1 and the value of Q is Q1, and subsequently operating at a second operating phase at a reaction temperature which is different from the reaction temperature employed in the first operating phase, such that the value of T is T2 and the value of Q is substantially Q2, whereby Q2 is determined by calculation and Q2 is defined by the formula Q2=Q1+B(T2−T1), wherein B denotes a constant factor which is greater than 0; a reaction system suitable for performing the process for the epoxidation of an olefin; a computer program product which comprises a computer readable program recorded on a computer readable medium, suitable for instructing a data processing system of a computer system to execute calculations for the process for the epoxidation of an olefin; and a computer system which comprises the computer program product and a data processing system.