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    • 33. 发明授权
    • Brominated anionic styrenic polymers and their preparation
    • 溴化阴离子苯乙烯聚合物及其制备
    • US08071688B2
    • 2011-12-06
    • US12636250
    • 2009-12-11
    • Charles H. KolichJohn F. BalhoffMartin B. BerdonRonny W. Lin
    • Charles H. KolichJohn F. BalhoffMartin B. BerdonRonny W. Lin
    • C08F12/08
    • C08F8/20C08F8/22C08F12/00C08F12/08
    • Concurrently fed into a reaction zone held at about 10° C. or less are brominating agent, aluminum halide catalyst, and a solution of anionic styrenic polymer having a GPC Mn about 2000-30,000. The components are in at least two separate feed streams. The feeds are proportioned to maintain (a) the amount of aluminum halide being fed at about 0.8 mole percent or less based on the amount of aromatic monomeric units in the polymer being fed, and (b) amounts of brominating agent and unbrominated polymer in the reaction zone that produce a final washed and dried polymer product containing about 60-71 wt % bromine. The catalyst is deactivated, bromide ions and catalyst residues are washed away from the reaction mixture, and the brominated anionic styrenic polymer is recovered and dried. The dried polymer has a volatile bromobenzene content of about 600 ppm (wt/wt) or less as well as other beneficial properties.
    • 同时加入保持在约10℃或更低的反应区域的是溴化剂,卤化铝催化剂和具有大约2000-30,000的GPC Mn的阴离子苯乙烯聚合物溶液。 这些组件至少有两个单独的进料流。 进料成比例以维持(a)基于所加入的聚合物中芳族单体单元的量,以约0.8摩尔%或更少的量加入卤化铝的量,和(b)溴化剂和未溴化聚合物的量 反应区,其产生含有约60-71重量%溴的最终洗涤和干燥的聚合物产物。 催化剂失活,溴化物离子和催化剂残余物从反应混合物中洗去,回收溴化阴离子苯乙烯聚合物并干燥。 干燥的聚合物具有约600ppm(wt / wt)或更低的挥发性溴苯含量以及其它有益特性。
    • 34. 发明授权
    • Brominated anionic styrenic polymers and their preparation
    • 溴化阴离子苯乙烯聚合物及其制备
    • US07638583B2
    • 2009-12-29
    • US11612991
    • 2006-12-19
    • Charles H. KolichJohn F. BalhoffMartin B. BerdonRonny W. Lin
    • Charles H. KolichJohn F. BalhoffMartin B. BerdonRonny W. Lin
    • C08F12/08
    • C08F8/20C08F8/22C08F12/00C08F12/08
    • Concurrently fed into a reaction zone held at about 10° C. or less are brominating agent, aluminum halide catalyst, and a solution of anionic styrenic polymer having a GPC Mn about 2000-30,000. The components are in at least two separate feed streams. The feeds are proportioned to maintain (a) the amount of aluminum halide being fed at about 0.8 mole percent or less based on the amount of aromatic monomeric units in the polymer being fed, and (b) amounts of brominating agent and unbrominated polymer in the reaction zone that produce a final washed and dried polymer product containing about 60-71 wt % bromine. The catalyst is deactivated, bromide ions and catalyst residues are washed away from the reaction mixture, and the brominated anionic styrenic polymer is recovered and dried. The dried polymer has a volatile bromobenzene content of about 600 ppm (wt/wt) or less as well as other beneficial properties.
    • 同时加入保持在约10℃或更低的反应区域的是溴化剂,卤化铝催化剂和具有大约2000-30,000的GPC Mn的阴离子苯乙烯聚合物溶液。 这些组件至少有两个单独的进料流。 进料成比例以维持(a)以所加入的聚合物中的芳族单体单元的量为基准,以约0.8摩尔%或更少的量加入卤化铝的量,和(b)溴化剂和未溴化聚合物的量 反应区,其产生含有约60-71重量%溴的最终洗涤和干燥的聚合物产物。 催化剂失活,溴化物离子和催化剂残余物从反应混合物中洗去,回收溴化阴离子苯乙烯聚合物并干燥。 干燥的聚合物具有约600ppm(wt / wt)或更低的挥发性溴苯含量以及其它有益特性。
    • 38. 发明授权
    • Preparation and recovery of N-hydrocarbylthiophosphoric triamides or
N-hydrocarbylphosphoric triamides
    • N-烃基硫代磷酸三酰胺或N-烃基磷酸三酰胺的制备和回收
    • US5883297A
    • 1999-03-16
    • US58367
    • 1998-04-09
    • Gerald M. SulzerChi Hung ChengW. Dirk KlobucarCharles H. Kolich
    • Gerald M. SulzerChi Hung ChengW. Dirk KlobucarCharles H. Kolich
    • C01C1/16C07F9/02C07F9/22C07F9/26
    • C01C1/164C07F9/025C07F9/224C07F9/26
    • A reaction mixture containing N-hydrocarbylthiophosphoric triamide or N-hydrocarbylphosphoric triamide ("Triamide") is formed by reacting ammonia with N-hydrocarbylaminothiophosphoryl dichloride or N-hydrocarbylaminophosphoryl dichloride in a liquid organic medium, in proportions of at least 16 moles of ammonia per mole of such dichloride and that keep in solution the ammonium chloride co-product formed in the reaction. The temperature of the reaction mixture is kept high enough to keep ammonium chloride-ammonia complex from forming a solid phase in the reaction mixture, but low enough to avoid significant reduction in Triamide yield. The reaction mixture is then caused/allowed to separate into an inorganic phase comprising ammonia, ammonium chloride and co-product thiophosphoric triamide or phosphoric triamide, and an organic phase comprising Triamide, liquid organic medium, dissolved ammonia and, usually, phosphorus impurities. These phases are separated from each other. The ammonia is removed from the organic phase to leave a concentrated solution of Triamide in residual liquid organic medium usually also containing phosphorus impurities. The Triamide is separated or recovered from this residual mixture by continuously introducing a stream of the liquid mixture into a wiped film evaporator operating at a temperature of about 60.degree.-140.degree. C., and at a pressure that avoids solids formation on the heating surface of the wiped film evaporator, and continuously collecting the Triamide product. Triamides are urease inhibitors for use with urea-based fertilizers.
    • 通过使氨与N-烃基氨基硫代磷酰基二氯化物或N-烃基氨基磷酰基二氯化物在液体有机介质中反应,按每摩尔至少16摩尔氨的比例形成含有N-烃基硫代磷酰三胺或N-烃基磷酸三酰胺(“三酰胺”)的反应混合物 的这种二氯化物,并保持溶液中形成的氯化铵副产物在反应中。 反应混合物的温度保持足够高以保持氯化铵 - 氨络合物在反应混合物中形成固相,但足够低以避免三酰胺产率的显着降低。 然后使反应混合物分离成包含氨,氯化铵和副产物硫代磷酸三酰胺或磷酸三酰胺的无机相,以及包含三酰胺,液体有机介质,溶解氨和通常为磷杂质的有机相。 这些阶段相互分离。 从有机相中除去氨,留下通常也含有磷杂质的残留液体有机介质中的三酰胺浓缩溶液。 通过将液体混合物流连续地引入到在约60-140℃的温度下操作的擦拭膜蒸发器中并且在避免在加热表面上形成固体的压力下将三酰胺分离或回收 的擦拭膜蒸发器,并连续收集三酰胺产物。 三酰胺是用于尿素肥料的尿素酶抑制剂。