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    • 42. 发明申请
    • TWO-STAGE HYDROFORMYLATION PROCESS WITH CIRCULATING GAS AND SILP TECHNOLOGY
    • 具有循环气和硅胶技术的两级氢化方法
    • US20160304426A1
    • 2016-10-20
    • US15103842
    • 2014-12-10
    • Marc BeckerKatrin Marie DyballaRobert FrankeDirk FridagHanna HahnMarina LazarMarkus PriskeGuido Stochniol
    • Marc BeckerKatrin Marie DyballaRobert FrankeDirk FridagHanna HahnMarina LazarMarkus PriskeGuido Stochniol
    • C07C45/50C07C45/79B01D61/36B01J31/18B01J31/02B01D5/00C07C45/82B01J31/24
    • C07C45/50B01D5/006B01D5/0072B01D61/362B01D61/38B01D2311/02B01D2311/04B01D2311/06B01D2311/263B01D2311/2669B01D2311/2673B01J31/0292B01J31/1845B01J31/185B01J31/24B01J2231/321B01J2531/822C07C45/786C07C45/79C07C45/82C07C47/02
    • The invention relates to processes for preparing aldehydes by hydroformylation of alkenes, in which an alkene-containing feed mixture is subjected to a primary hydroformylation with synthesis gas in the presence of a homogeneous catalyst system, the primary hydroformylation being effected in a primary reaction zone from which a cycle gas containing at least some of the products and unconverted reactants of the primary hydroformylation are drawn off continuously and partly condensed, with recycling of uncondensed components of the cycle gas into the primary reaction zone, and with distillative separation of condensed components of the cycle gas in an aldehyde removal stage to give an aldehyde-rich mixture and a low-aldehyde mixture. The problem that it addresses is that of developing the process such that it achieves high conversions and affords aldehyde in good product quality even in the case of a deteriorating raw material position. More particularly, a solution is to be found for making legacy oxo process plants capable of utilizing lower-value raw material sources. This problem is solved by separating the low-aldehyde mixture into a retentate and a permeate by means of a membrane separation unit in such a way that alkenes present in the low-aldehyde mixture become enriched in the permeate, while alkanes present in the low-aldehyde mixture become enriched in the retentate. The alkene-rich permeate is then transferred into a secondary reaction zone and subjected to a secondary hydroformylation therein with synthesis gas in the presence of an SILP catalyst system. The reaction product obtained from the secondary hydroformylation is recycled into the aldehyde removal stage.
    • 本发明涉及通过烯烃的加氢甲酰化制备醛的方法,其中含烯烃的进料混合物在均相催化剂体系的存在下用合成气进行初级加氢甲酰化,初级加氢甲酰化在主反应区 其中包含至少一些产物的循环气体和初级加氢甲酰基化的未转化的反应物被连续地和部分地冷凝,循环气体的未冷凝的组分循环进入初级反应区,并且通过蒸馏分离 在醛去除阶段中循环气体,得到富含醛的混合物和低醛混合物。 它所解决的问题是开发该方法,即使在原料位置恶化的情况下,其达到高转化率并提供良好的产品质量的醛。 更具体地说,可以找到一种解决方案,用于制造能够利用较低价值的原材料来源的传统氧化工艺装置。 通过将低醛混合物通过膜分离单元将低醛混合物分离成滞留物和渗透物来解决,使得存在于低醛混合物中的烯烃变得富集在渗透物中, 醛混合物在保留物中变得富集。 然后将富含烯烃的渗透物转移到第二反应区中,并在有SILP催化剂体系的情况下用合成气对其进行二次加氢甲酰化。 从二次加氢甲酰化得到的反应产物再循环到醛去除阶段。
    • 45. 发明授权
    • Method for producing acrolein comprising the regeneration of a raw glycerin phase
    • 制备丙烯醛的方法,其包括再生生成的甘油相
    • US08524945B2
    • 2013-09-03
    • US13128538
    • 2009-11-03
    • Guido StochniolGoetz BaumgartenFranz-Felix Kuppinger
    • Guido StochniolGoetz BaumgartenFranz-Felix Kuppinger
    • C07C51/00C07C31/22
    • C07C45/79C07C45/52C07C45/786C07C45/82C07C47/22
    • The invention relates to a method for producing acrolein by dehydrating an aqueous glycerin phase in an acrolein reaction region, obtaining an aqueous acrolein reaction phase; at least partially separating the aqueous acrolein reaction phase into an acrolein-rich acrolein phase and an acrolein-poor residual phase comprising glycerin, water and various other residuals; and recirculating at least part of the residual phase into the acrolein reaction region. Additionally, removing at least one of the residuals, other than glycerin or water, from either of the glycerin phase or a mixture phase obtained by mixing the glycerol phase with the low-acrolein residue phase and feeding the resulting purified glycerin or mixture phase into the acrolein reaction region. The invention furthermore relates to a method for producing acrylic acid, water-absorbing polymer formations, compounds and hygiene articles, and to devices for carrying out those methods.
    • 本发明涉及通过在丙烯醛反应区域中脱水甘油三酯相来制备丙烯醛的方法,获得丙烯醛水溶液反应相; 至少部分地将丙烯醛水溶液反应相分离成富含丙烯醛的丙烯醛相和不含丙烯醛的残余相,其包含甘油,水和各种其它残余物; 并将至少部分剩余相再循环到丙烯醛反应区中。 此外,从甘油相或通过将甘油相与低丙烯醛残基相混合而获得的甘油相或混合相中除去甘油或水以外的至少一种残余物,并将得到的纯化甘油或混合物相加入到 丙烯醛反应区。 本发明还涉及制备丙烯酸,吸水聚合物结构,化合物和卫生制品的方法以及用于实施这些方法的装置。