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    • 5. 发明授权
    • Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas
    • 基本上不含无甲酸的N-烷基-N'-甲基亚烷基脲的方法
    • US06554966B1
    • 2003-04-29
    • US09603195
    • 2000-06-26
    • Andreas KramerJohann-Peter MelderHeinz RütterGünter RieweWolfgang SiegelHans-Jürgen Weyer
    • Andreas KramerJohann-Peter MelderHeinz RütterGünter RieweWolfgang SiegelHans-Jürgen Weyer
    • B01D300
    • C07D239/10
    • The invention relates to a process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas of the formula with R1=H or CH3, R2=CnH2n+1 with n=1-4 and x=0 or 1, from the corresponding alkyleneureas by reaction with monomeric or polymerized formaldehyde in the presence of formic acid. This entails feeding the mixture, obtained in the reaction, of N-alkyl-N′-methylalkyleneurea and formic acid to the upper region of a distillation column, distilling without further additions and removing essentially formic acid-free N-alkyl-N′-methylalkyleneurea in the lower region of the column. The process parameters are set so that the pressure in the upper region of the column is at a higher level than in the lower region of the column, and the difference in pressure between the upper and lower regions of the column is from 10 to 100 mbar, and the temperature in the lower region of the column is higher than in the upper region of the column, with the difference in temperature between the upper and lower regions of the column being from 40° C. to 210° C.
    • 本发明涉及一种制备基本上无甲酸的N-烷基-N'-甲基亚烷基脲的方法,其中R1 = H或CH3,R2 = CnH2n + 1,其中n = 1-4和x = 0或1, 通过在甲酸存在下与单体或聚合的甲醛反应来制备相应的亚烷基脲。 这需要将N-烷基-N'-甲基亚烷基脲和甲酸的反应混合物加入到蒸馏塔的上部区域,无需进一步添加即可蒸馏除去基本上不含甲酸的N-烷基-N'- 甲基亚烷基脲在柱的下部区域。 设定工艺参数使得塔的上部区域中的压力处于比塔的下部区域更高的水平,并且塔的上部和下部区域之间的压力差为10至100mbar ,塔的下部区域的温度高于塔的上部区域,塔的上部和下部区域之间的温度差为40℃〜210℃。
    • 7. 发明授权
    • Processes for preparing ethylamines
    • 制备乙胺的方法
    • US07642382B2
    • 2010-01-05
    • US11908820
    • 2006-03-14
    • Till GerlachFrank HaeseAnton MeierJohann-Peter MelderHeinz Rütter
    • Till GerlachFrank HaeseAnton MeierJohann-Peter MelderHeinz Rütter
    • C07C209/16
    • C07C209/16C07C211/05
    • Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO2) and aluminum oxide (Al2O3), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of >110 μmol of CO/g of the catalyst.
    • 方法包括:(a)提供包含生物乙醇的第一反应物; 和(b)使第一反应物与包含选自氨,伯胺,仲胺及其混合物的组分的第二反应物在氢气和催化有效量的非均相氢化/脱氢催化剂存在下反应至 形成乙胺; 其中所述催化剂已经在100至500℃的温度下活化至少25分钟; 其中在活化之前,催化剂包括:(i)20至65重量%的包含二氧化锆(ZrO 2)和氧化铝(Al 2 O 3)中的一种或两种的载体材料,(ii)1至30重量% 包括以CuO计算的铜化合物,和(iii)以NiO计算的含有21重量%的含氧化合物的镍; 并且其中在活化后,催化剂的CO吸收能力为> 110molol的CO / g催化剂。
    • 10. 发明申请
    • Method for producing an ethylamine
    • 乙胺的制造方法
    • US20090234163A1
    • 2009-09-17
    • US11908820
    • 2006-03-14
    • Till GerlachFrank HaeseAnton MeierJohann-Peter MelderHeinz Rütter
    • Till GerlachFrank HaeseAnton MeierJohann-Peter MelderHeinz Rütter
    • C07C209/16
    • C07C209/16C07C211/05
    • Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO2) and aluminum oxide (Al2O3), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of >110 μmol of CO/g of the catalyst.
    • 方法包括:(a)提供包含生物乙醇的第一反应物; 和(b)使第一反应物与包含选自氨,伯胺,仲胺及其混合物的组分的第二反应物在氢气和催化有效量的非均相氢化/脱氢催化剂存在下反应至 形成乙胺; 其中所述催化剂已经在100至500℃的温度下活化至少25分钟; 其中在活化之前,催化剂包括:(i)20至65重量%的包含二氧化锆(ZrO 2)和氧化铝(Al 2 O 3)中的一种或两种的载体材料,(ii)1至30重量% 包括以CuO计算的铜化合物,和(iii)以NiO计算的含有21重量%的含氧化合物的镍; 并且其中在活化后,催化剂的CO吸收能力为> 110molol的CO / g催化剂。