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    • 4. 发明授权
    • Method for crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester
    • α-L-天冬氨酰-L-苯丙氨酸甲酯的结晶方法
    • US5347035A
    • 1994-09-13
    • US125193
    • 1993-09-23
    • Hidetoshi WakamatsuTsuneo HaradaYukio KunisawaKiyotaka Oyama
    • Hidetoshi WakamatsuTsuneo HaradaYukio KunisawaKiyotaka Oyama
    • A23L27/30C07K1/14C07K5/06C07K5/072C07K5/075C07C229/00
    • C07K5/0613
    • A method for crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester from a hot aqueous solution containing .alpha.-L-aspartyl-L-phenylalanine methyl ester by cooling is disclosed, which comprises (i) continuously supplying a hot aqueous solution of .alpha.-L-aspartyl-L-phenylalanine methyl ester having a concentration such that the content of L-aspartyl-L-aspartyl-L-phenylalanine methyl esters is less than 0.6% by weight based on the weight of .alpha.-L-aspartyl-L-phenylalanine methyl ester in said solution, or if the content of L-aspartyl-L-aspartyl-L-phenylalanine methyl esters is 0.6% by weight or more based on the weight of .alpha.-L-aspartyl-L-phenylalanine methyl ester in said solution, to a crystallization vessel the temperature of which is lowered to that corresponding to the solubility of .alpha.-L-aspartyl-L-phenylalanine methyl ester or less, and (ii) continuously discharging the formed slurry from the crystallization vessel.
    • 公开了一种通过冷却从含有α-L-天冬氨酰-L-苯丙氨酸甲酯的热水溶液中结晶α-L-天冬氨酰基-L-苯丙氨酸甲酯的方法,其包括(i)连续供应热的α水溶液 L-天冬氨酰-L-苯丙氨酸甲酯的浓度使得L-天冬氨酰基-L-天冬氨酰基-L-苯丙氨酸甲酯的含量基于α-L-天冬氨酰-L重量的小于0.6重量% - 苯丙氨酸甲酯,或者如果L-天冬氨酰基-L-天冬氨酰基-L-苯丙氨酸甲酯的含量基于α-L-天冬氨酰基-L-苯丙氨酸甲酯的重量计为0.6重量%以上 所述溶液加到结晶容器中,该结晶容器的温度降低至与α-L-天冬氨酰基-L-苯丙氨酸甲酯的溶解度或更低的溶解度,和(ii)从结晶容器中连续排出形成的浆料。
    • 10. 发明申请
    • HYDROGENATION CATALYST, PROCESS FOR ITS PRODUCTION AND ITS USE
    • 氢化催化剂,其生产工艺及其使用
    • US20120264976A1
    • 2012-10-18
    • US13518933
    • 2010-12-24
    • Tsuneo HaradaShou Kawabe
    • Tsuneo HaradaShou Kawabe
    • B01J21/08C07C209/36
    • C07C209/36B01J21/16B01J23/72B01J23/78B01J35/1014B01J37/18C07C211/46
    • To provide a hydrogenation catalyst which does not contain chromium oxide, unlike conventional copper/chromium oxide catalysts, and therefore does not cause any environmental contamination or health hazard, and which shows an activity, selectivity and durability at equivalent or higher levels to or than those of conventional copper/chromium oxide catalysts. A hydrogenation catalyst which comprises, as the main components, (1) copper and (2) at least one member selected from the group consisting of silicon oxide, calcium oxide and calcium silicate, wherein the content of the copper is from 20 to 60 wt % based on the entire amount of the hydrogenation catalyst, and in the calcium silicate, the molar ratio of calcium oxide (CaO) to silicon oxide (SiO2) is less than 1.
    • 为了提供与常规的铜/铬氧化物催化剂不同的不含氧化铬的氢化催化剂,因此不引起任何环境污染或健康危害,并且在相当于或更高的水平上表现出活性,选择性和耐久性 的常规铜/铬氧化物催化剂。 一种氢化催化剂,其以(1)铜和(2)选自氧化硅,氧化钙和硅酸钙的至少一种成分为主要成分,其中铜的含量为20〜60重量% 基于氢化催化剂的全部量,在硅酸钙中,氧化钙(CaO)与氧化硅(SiO 2)的摩尔比小于1。