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66 条记录 (耗时 0.018 秒)

    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol
    2.
    发明授权
    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中降低反应性重副产物的粘度

    公开(公告)号：US07276634B2

    公开(公告)日：2007-10-02

    申请号：US10676682

    申请日：2003-10-01

    申请人： John Frederick Knifton ,  Talmadge Gail James ,  Paul Richard Weider ,  Joseph Broun Powell ,  Edward Lewis Nielsen ,  Glenn Charles Komplin

    发明人： John Frederick Knifton ,  Talmadge Gail James ,  Paul Richard Weider ,  Joseph Broun Powell ,  Edward Lewis Nielsen ,  Glenn Charles Komplin

    IPC分类号： C07C27/10

    CPC分类号： C07C45/58 ,  C07C29/141 ,  C07C31/205

    摘要： The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy components. The improvement on this process comprises replacing the sodium hydroxide with a hydroxide selected from the group consisting of ammonium hydroxide, alkali metal hydroxides other than sodium hydroxide, and alkaline earth metal hydroxides to reduce the viscosity of the reactive heavy components.

    摘要翻译： 本发明是对生产1,3-丙二醇的方法的改进，其中形成3-羟基丙醛的水溶液，从该溶液中除去所述地层中使用的催化剂（如果有的话），将氢氧化钠加入 中和其中的任何酸使其pH至少约为5的溶液，中和的水溶液进行氢化以产生粗制的1,3-丙二醇混合物，其被蒸馏以产生1,3-丙二醇，水和反应性 重组件。 该方法的改进包括用选自氢氧化铵，氢氧化钠以外的碱金属氢氧化物和碱土金属氢氧化物的氢氧化物代替氢氧化钠，以降低反应性重组分的粘度。

    Saturated, liquid isobutylene polymers terminally functionalized by special groups
    4.
    发明授权
    Saturated, liquid isobutylene polymers terminally functionalized by special groups 失效
    饱和的液体异丁烯聚合物由特殊的基团末端官能化

    公开(公告)号：US5274182A

    公开(公告)日：1993-12-28

    申请号：US904646

    申请日：1992-06-26

    申请人： Richard Weider ,  Thomas Scholl

    发明人： Richard Weider ,  Thomas Scholl

    IPC分类号： C08F8/00 ,  C08F8/04 ,  C08F8/06 ,  C08F8/30 ,  C08F8/32 ,  C08F210/00 ,  C08F210/12 ,  C08J3/24 ,  C08L23/00 ,  C08L23/22 ,  C08L23/26 ,  C07C263/10 ,  C07C211/09 ,  C07C265/04 ,  C07C321/14

    CPC分类号： C08F8/04 ,  C08F8/06

    摘要： Saturated, liquid, low molecular weight and low-viscosity isobutylene polymers terminally functionalized by special groups, which correspond to the following formula ##STR1## are produced by solution ozonolysis of high molecular weight isobutylene/diene copolymers containing diene monomers, stabilization of the products obtained after the ozone treatment by addition of peroxide decomposers and subsequent reduction with hydrogen in the presence of hydrogenation catalysts under pressures of 10 to 300 bar and at temperatures of 20.degree. to 300.degree. C., optionally in the presence of sulfur or amines or ammonia.

    摘要翻译： 通过特殊基团末端官能化的饱和，液体，低分子量和低粘度异丁烯聚合物，其对应于下式通过溶液臭氧分解产生，所述高分子量异丁烯/二烯共聚物含有二烯单体，所得产物的稳定化 在通过加入过氧化物分解剂进行臭氧处理之后，随后在氢化催化剂存在下，在10-300巴的压力和20-300℃的温度下，任选在硫或胺或氨的存在下用氢还原。

    Process for the preparation of aromatic dicarboxylic acids and aromatic hydrocarbons
    5.
    发明授权
    Process for the preparation of aromatic dicarboxylic acids and aromatic hydrocarbons 失效
    制备芳族二羧酸和芳香烃的方法

    公开(公告)号：US5183926A

    公开(公告)日：1993-02-02

    申请号：US759794

    申请日：1991-09-13

    申请人： Richard Weider ,  Thomas Scholl

    发明人： Richard Weider ,  Thomas Scholl

    IPC分类号： C07C13/28 ,  C07C51/255 ,  C07C69/76 ,  C07C309/65

    CPC分类号： C07C309/65 ,  C07C13/28 ,  C07C51/255 ,  C07C69/76 ,  C07C2101/14

    摘要： Aromatic dicarboxylic acids of the formula ##STR1## in which R.sup.1, R.sup.2, m, n, and X have the meaning mentioned in the description,can be prepared from the bisphenols, on which they are based, of the formula ##STR2## if the bisphenols are first reacted to give the bissulphonates, the sulphonate groups are removed catalytically with H.sub.2 and the hydrocarbons obtained in this way are doubly acylated in a known manner and the acyl groups are oxidized to the carboxyl groups.Many of the aromatic dicarboxylic acids which can be prepared in this way are new.

    摘要翻译： 其中R 1，R 2，m，n和X具有说明书中提到的含义的式（I）的芳族二羧酸可由其所基于的双酚制备，具有下式：IMAGE 如果双酚首先反应得到双磺酸盐，用H2催化除去磺酸盐基团，以这种方式得到的烃以已知的方式进行双重酰化，酰基被氧化成羧基。 可以以这种方式制备的许多芳族二羧酸是新的。

    HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION
    7.
    发明申请
    HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION 审中-公开
    异构促进氧化水解

    公开(公告)号：US20090163742A1

    公开(公告)日：2009-06-25

    申请号：US12337374

    申请日：2008-12-17

    申请人： Stephen Blake Mullin ,  Joseph Broun Powell ,  Paul Richard Weider

    发明人： Stephen Blake Mullin ,  Joseph Broun Powell ,  Paul Richard Weider

    IPC分类号： C07C45/00

    CPC分类号： C07C45/58 ,  C07C47/19

    摘要： A process for making betahydroxyaldehydes such as 3-hydroxypropanal which comprises intimately contacting (a) an oxirane, (b) carbon monoxide, (c) a reducing agent such as hydrogen, (d) from about 0.01 to about 1 weight percent, basis cobalt metal, of a cobalt hydroformylation catalyst which is optionally complexed with a tertiary phosphine ligand, and (e) a heterogeneous, preferably solid, metal promoter used at a molar ratio of 0.05, preferably 0.15, to 100 moles of heterogeneous metal relative to the moles of soluble cobalt hydroformylation catalyst.

    摘要翻译： 一种制备β-羟基醛例如3-羟基丙醛的方法，其包括使（a）环氧乙烷，（b）一氧化碳，（c）还原剂如氢气，（d）约0.01至约1重量％ 金属，钴加氢甲酰化催化剂，其任选与叔膦配体络合，和（e）非均相的，优选固体的金属促进剂，其摩尔比为0.05，优选0.15至100摩尔异相金属，相对于摩尔数 的可溶性羰基羰基化催化剂。

    Process for separating volatile components from polymers
    9.
    发明授权
    Process for separating volatile components from polymers 失效
    挥发性组分与聚合物分离的方法

    公开(公告)号：US07144981B2

    公开(公告)日：2006-12-05

    申请号：US10684600

    申请日：2003-10-14

    申请人： Thomas König ,  Klemens Kohlgrüber ,  Ulrich Liesenfelder ,  Michael Bierdel ,  Helmut Meyer ,  Richard Weider ,  Jörg Krüger

    发明人： Thomas König ,  Klemens Kohlgrüber ,  Ulrich Liesenfelder ,  Michael Bierdel ,  Helmut Meyer ,  Richard Weider ,  Jörg Krüger

    IPC分类号： C08F6/00

    CPC分类号： C08F6/003

    摘要： A process for concentrating polymers by evaporation is disclosed. The process entails (i) obtaining a mixture containing a polymer and volatile component, the volatile components being present in the mixture at an amount less than 20 wt. % relative to the weight of the mixture, and (ii) introducing the mixture in a downward direction under pressure through a plurality of nozzles arranged vertically and next to one another into a degassing container to form an extrudate. The volatile component contains at least one of residual monomers, oligomers and solvents, and the throughput of the mixture per nozzle is 0.3 to 2 kg/h. The vapor pressure of the volatile component of the extrudate is more than 2.5 bar, and the absolute pressure in the degassing container is 50 to 5000 Pa. The polymer prepared by the process is characterized in that it contains volatile components in an amount of less than 300 ppm.

    摘要翻译： 公开了通过蒸发浓缩聚合物的方法。 该方法需要（i）获得含有聚合物和挥发性组分的混合物，所述挥发性组分以小于20重量％的量存在于混合物中。 相对于混合物重量的％，和（ii）通过垂直且彼此相邻布置的多个喷嘴在压力下向下引入混合物到脱气容器中以形成挤出物。 挥发性组分含有残留单体，低聚物和溶剂中的至少一种，并且每个喷嘴的混合物的生产量为0.3至2kg / h。 挤出物的挥发性成分的蒸气压大于2.5巴，脱气容器中的绝对压力为50〜5000Pa。本方法制备的聚合物的特征在于，其含有挥发性成分的量小于 300 ppm。