Glycidyl ester adducts having increased glass transition temperatures
    2.
    发明授权
    Glycidyl ester adducts having increased glass transition temperatures 有权
    具有增加的玻璃化转变温度的缩水甘油酯加合物

    公开(公告)号:US06342615B1

    公开(公告)日:2002-01-29

    申请号:US09566314

    申请日:2000-05-08

    IPC分类号: C07D30132

    CPC分类号: C07D301/32 C07D303/16

    摘要: The invention provides for a purified glycidyl ester product prepared from neo acids wherein said ester product is recovered as a light fraction from a glycidyl ester reaction product composition that has been subjected to conditions of temperature and vacuum in a thin film, short pass distillation evaporator, said purified glycidyl ester product further characterized that its polymerizable reaction product with methacrylic acid has a higher effective glass transition temperature as compared with the polymerizable reaction product with methacrylic acid of said glycidyl ester reaction product composition prior to purification.

    摘要翻译: 本发明提供由新酸制备的纯化的缩水甘油酯产物,其中所述酯产物作为轻度馏分从在薄膜,短途蒸馏蒸发器中经过温度和真空条件的缩水甘油酯反应产物组合物回收, 所述纯化的缩水甘油酯产物的特征还在于其与甲基丙烯酸的可聚合反应产物与纯化前所述缩水甘油酯反应产物组合物的甲基丙烯酸的可聚合反应产物相比具有更高的有效玻璃化转变温度。

    Process for the purification of glycidyl esters from epihalohydrin and
carboxylic acids
    3.
    发明授权
    Process for the purification of glycidyl esters from epihalohydrin and carboxylic acids 失效
    从表卤代醇和羧酸纯化缩水甘油酯的方法

    公开(公告)号:US5880297A

    公开(公告)日:1999-03-09

    申请号:US861408

    申请日:1997-05-21

    CPC分类号: C07D303/16 C07D301/32

    摘要: A process for the distillation of the glycidyl ester reaction product of a straight or branched chain saturated monocarboxylic acid or salt thereof and an halo-substituted monoepoxidc is disclosed, wherein the reaction product is subjected to conditions of temperature and vacuum in a thin film, short pass distillation apparatus such as a wiped film evaporator. The product distillate has significantly reduced color than the reaction product prior to distillation, and has improved heat and color stability.

    摘要翻译: 公开了一种蒸馏直链或支链饱和一元羧酸或其盐和卤素取代的单环氧化物的缩水甘油酯反应产物的方法,其中反应产物在薄膜中进行温度和真空条件,短 通过蒸馏装置如擦膜蒸发器。 在蒸馏之前,产物馏出物的颜色比反应产物显着降低,并且具有改善的热量和颜色稳定性。

    Integrated dimethyl ether recovery from an oxygenate-to-olefins process and production of polypropylene
    4.
    发明授权
    Integrated dimethyl ether recovery from an oxygenate-to-olefins process and production of polypropylene 有权
    从含氧化合物到烯烃方法的二甲醚回收和聚丙烯的生产

    公开(公告)号:US08207387B2

    公开(公告)日:2012-06-26

    申请号:US12772276

    申请日:2010-05-03

    IPC分类号: C07C2/06 C07C1/207

    CPC分类号: C08F110/06 Y02P30/42

    摘要: Provided is a method of producing polypropylene comprising contacting an oxygenate stream with a molecular sieve to form an olefin stream comprising propane, propylene and dimethylether; introducing the olefin stream into a propylene rectification tower possessing from less than 200 theoretical stages; withdrawing from the propylene rectification tower a bottom stream comprising dimethylether, a sidestream comprising propane, and an overhead stream comprising propane and propylene; introducing the overhead to a condenser to accumulate a propylene-rich stream; passing the propylene-rich stream to a splitter to produce (i) a first propylene stream that is introduced into a polypropylene reactor to contact a polyolefin catalyst, and (ii) a second propylene stream that is re-introduced into the rectification tower, the first and second propylene streams introduced at a desirable ratio; and recirculating the dimethylether stream to contact the molecular sieve.

    摘要翻译: 提供一种生产聚丙烯的方法,其包括使含氧化合物流与分子筛接触以形成包含丙烷,丙烯和二甲醚的烯烃流; 将烯烃流引入到具有小于200个理论级的丙烯精馏塔中; 从丙烯精馏塔中排出包含二甲醚的底部料流,包含丙烷的侧流和包含丙烷和丙烯的塔顶料流; 将塔顶馏出物引入冷凝器以积聚富含丙烯的料流; 将富丙烯流送入分离器以产生(i)引入聚丙烯反应器中以接触聚烯烃催化剂的第一丙烯料流,和(ii)再次引入精馏塔中的第二丙烯料流, 以期望的比例引入第一和第二丙烯料流; 并使二甲醚流再循环以与分子筛接触。

    Method of separating condensed liquid from an olefin stream
    5.
    发明授权
    Method of separating condensed liquid from an olefin stream 有权
    从烯烃流中分离冷凝液的方法

    公开(公告)号:US07893310B2

    公开(公告)日:2011-02-22

    申请号:US12023459

    申请日:2008-01-31

    IPC分类号: C07C1/00 C07C7/10

    CPC分类号: C07C7/10 C07C1/20 C07C11/02

    摘要: This invention is to a process for separating condensed water and entrained solids from an olefin stream so that fouling of the separation equipment by the entrained solids is reduced or eliminated. The process involves injecting an antifouling agent into a water condensing or quench system in an amount to maintain a zeta potential of fouling liquid and a zeta potential of the surface of the quench system both in a positive range or both in a negative range.

    摘要翻译: 本发明涉及从烯烃流中分离冷凝水和夹带固体的方法,从而减少或消除夹带的固体污染分离设备。 该方法包括将防污剂注入到水冷凝或骤冷系统中,其量使得维持窒息液体的ζ电位和猝灭系统表面的ζ电位均处于正的范围,或者在负的范围内。

    Integrated Dimethyl Ether Recovery From An Oxygenate-To-Olefins Process And Production Of Polypropylene
    8.
    发明申请
    Integrated Dimethyl Ether Recovery From An Oxygenate-To-Olefins Process And Production Of Polypropylene 有权
    从氧化烯到烯烃方法的综合二甲醚回收和聚丙烯的生产

    公开(公告)号:US20100317908A1

    公开(公告)日:2010-12-16

    申请号:US12772276

    申请日:2010-05-03

    IPC分类号: C07C1/20

    CPC分类号: C08F110/06 Y02P30/42

    摘要: Provided is a method of producing polypropylene comprising contacting an oxygenate stream with a molecular sieve to form an olefin stream comprising propane, propylene and dimethylether; introducing the olefin stream into a propylene rectification tower possessing from less than 200 theoretical stages; withdrawing from the propylene rectification tower a bottom stream comprising dimethylether, a sidestream comprising propane, and an overhead stream comprising propane and propylene; introducing the overhead to a condenser to accumulate a propylene-rich stream; passing the propylene-rich stream to a splitter to produce (i) a first propylene stream that is introduced into a polypropylene reactor to contact a polyolefin catalyst, and (ii) a second propylene stream that is re-introduced into the rectification tower, the first and second propylene streams introduced at a desirable ratio; and recirculating the dimethylether stream to contact the molecular sieve.

    摘要翻译: 提供一种生产聚丙烯的方法,其包括使含氧化合物流与分子筛接触以形成包含丙烷,丙烯和二甲醚的烯烃流; 将烯烃流引入到具有小于200个理论级的丙烯精馏塔中; 从丙烯精馏塔中排出包含二甲醚的底部料流,包含丙烷的侧流和包含丙烷和丙烯的塔顶料流; 将塔顶馏出物引入冷凝器以积聚富含丙烯的料流; 将富丙烯流输送到分流器以产生(i)引入聚丙烯反应器中以接触聚烯烃催化剂的第一丙烯料流,和(ii)再次引入精馏塔中的第二丙烯料流, 以期望的比例引入第一和第二丙烯料流; 并使二甲醚流再循环以与分子筛接触。