HIGH-VOLTAGE DRIVER AND PIEZOELECTRIC PUMP WITH BUILT-IN DRIVER
    23.
    发明申请
    HIGH-VOLTAGE DRIVER AND PIEZOELECTRIC PUMP WITH BUILT-IN DRIVER 有权
    高压驱动器和内置驱动器的压电泵

    公开(公告)号:US20090060762A1

    公开(公告)日:2009-03-05

    申请号:US12167035

    申请日:2008-07-02

    IPC分类号: F04B17/00 H02N2/06

    摘要: A digital waveform generating circuit having a DC voltage as an input and generating a sinusoidal digital signal, an active filter extracting low-frequency components from the sinusoidal digital signal generated in the digital waveform generating circuit, and a high-voltage control circuit generating a high-voltage drive signal using the sinusoidal digital signal after passing through the active filter are provided. A smooth waveform without steep voltage changes is generated.

    摘要翻译: 一种具有DC电压作为输入并产生正弦数字信号的数字波形发生电路,从数字波形发生电路中产生的正弦数字信号中提取低频分量的有源滤波器和产生高电平的高压控制电路 提供通过有源滤波器后使用正弦数字信号的电压驱动信号。 产生无陡峭电压变化的平滑波形。

    Process for producing phytosterols by saponification in an alcohol/water solvent
    24.
    发明授权
    Process for producing phytosterols by saponification in an alcohol/water solvent 有权
    通过在醇/水溶剂中皂化生产植物甾醇的方法

    公开(公告)号:US07173144B1

    公开(公告)日:2007-02-06

    申请号:US10129279

    申请日:2000-11-02

    IPC分类号: C07J9/00

    CPC分类号: C07J9/00

    摘要: The present invention provides a method of obtaining highly pure phytosterols practically and efficiently from crude phytosterol compositions derived from vegetable fats and oils. That is, the present invention provides a method of saponifying fatty esters contained in crude phytosterol compositions with an alkali in a mixed solvent of an lower alcohol and water, as well as a process for producing phytosterols, which comprises, after this saponifying method, cooling the reaction solution to precipitate crystals of phytosterols, and separating the obtained crystals.

    摘要翻译: 本发明提供了从植物脂肪和油衍生的粗植物甾醇组合物实际上和有效地获得高纯度植物甾醇的方法。 也就是说,本发明提供了一种在粗制植物甾醇组合物中含有的脂肪酯在低级醇和水的混合溶剂中用碱皂化的方法,以及生产植物甾醇的方法,该方法在该皂化方法之后,冷却 反应溶液沉淀植物甾醇的晶体,并分离得到的晶体。

    Catalyst for transesterification
    25.
    发明授权
    Catalyst for transesterification 有权
    酯交换催化剂

    公开(公告)号:US06407269B2

    公开(公告)日:2002-06-18

    申请号:US09885962

    申请日:2001-06-22

    IPC分类号: C11C100

    摘要: The present invention provides a heterogeneous catalyst which is highly active, excellent in selectivity and free from elution of its catalyst-components during reaction and which has long lifetime. That is, a phosphate of a metal selected from the group consisting of aluminum, gallium and iron is used as the catalyst for transesterification of the present invention.

    摘要翻译: 本发明提供了一种非均相催化剂,它具有高活性,选择性优异,反应期间催化剂组分不溶解,寿命长。 也就是说,使用选自铝,镓和铁的金属的磷酸盐作为本发明的酯交换反应的催化剂。

    Hydrogenation reaction catalyst precursor, process for production
thereof and process for production of alcohol
    27.
    发明授权
    Hydrogenation reaction catalyst precursor, process for production thereof and process for production of alcohol 失效
    氢化反应催化剂前体,其制备方法和醇的生产方法

    公开(公告)号:US5478789A

    公开(公告)日:1995-12-26

    申请号:US317368

    申请日:1994-10-04

    摘要: A hydrogenation reaction catalyst precursor of the present invention comprises a catalyst carrier (A) and a metal oxide composition (B) carried on or mixed with the catalyst carrier (A) at a weight ratio of (B)/(A)=15/85 to 65/35; the catalyst carrier (A) comprising a carrier base material of silica, etc. and a coating of titanium oxide and/or titanium hydroxide, the metal oxide composition (B) comprising copper oxide, zinc oxide, and at least one oxide of a metal selected from the group consisting of an element of group IIa of the periodic table, an element of group IIIb of the table, a lanthanide element, and an actinide element at a weight ratio of 100/(0 to 25)/(0 to 25). A hydrogenation reaction catalyst with a high catalytic activity and a high reaction selectivity is obtained by reduction of the hydrogenation reaction catalyst precursor. By the use of the hydrogenation reaction catalyst of the present invention, a high quality alcohol can be produced at a high yield and with a high selectivity even at a low reaction temperature and a low hydrogen pressure.

    摘要翻译: 本发明的氢化反应催化剂前体包含负载或与催化剂载体(A)以(B)/(A)= 15 /(重量比)的比例负载的催化剂载体(A)和金属氧化物组合物(B) 85至65/35; 包含二氧化硅载体基材等的催化剂载体(A)和氧化钛和/或氢氧化钛的涂层,所述金属氧化物组合物(B)包含氧化铜,氧化锌和至少一种金属氧化物 选自元素周期表IIa族元素,表IIIb族元素,镧系元素和锕系元素,重量比为100 /(0-25)/(0-25) )。 通过还原氢化反应催化剂前体获得具有高催化活性和高反应选择性的氢化反应催化剂。 通过使用本发明的氢化反应催化剂,即使在低的反应温度和低的氢气压力下,也可以高产率和高选择性地制备高品质的醇。

    Process for producing hydrogenation reaction catalyst precursor
    28.
    发明授权
    Process for producing hydrogenation reaction catalyst precursor 失效
    生产氢化反应催化剂前体的方法

    公开(公告)号:US5229346A

    公开(公告)日:1993-07-20

    申请号:US886398

    申请日:1992-05-21

    摘要: A process for producing a hydrogenation reaction catalyst precursor is disclosed, including the steps of:(i) coating the outer surface of at least one of a first titanium oxide and a first titanium hydroxide having an outer surface area of at least 15 m.sup.2 /g with at least one of a second titanium oxide and a second titanium hydroxide formed by hydrolyzing at least one of a titanium alkoxide represented by Formula (I) and a titanium alkoxo acid represented by Formula (II) to prepare a catalyst carrier (A);Ti(OR).sub.4 (I) wherein R represents an alkyl group having from 1 to 18 carbon atoms or an aryl group,H.sub.2 [Ti(OR).sub.6 ] (II) wherein R has the same meaning as above;(ii) applying a metal oxide composition (B) onto the catalyst carrier (A) obtained in step (i), or mixing the metal oxide composition (B) with the catalyst carrier (A) to obtain a hydrogenation reaction catalyst precursor. Also, a process for producing an alcohol is described, including catalytically reducing an organic carboxylic acid ester with hydrogen in the presence of a catalyst obtained by reducing the hydrogenation reaction catalyst precursor produced by the process described above.

    摘要翻译: 公开了一种制备氢化反应催化剂前体的方法,包括以下步骤:(i)涂覆外表面积至少为15m 2 / g的第一氧化钛和第一氢氧化钛中的至少一种的外表面 与由式(I)表示的钛醇盐和由式(II)表示的钛烷氧基化物中的至少一种形成的第二氧化钛和第二氢氧化钛中的至少一种以制备催化剂载体(A); Ti(OR)4(I)其中R表示具有1至18个碳原子的烷基或芳基,H 2 [Ti(OR)6](II)其中R具有与上述相同的含义; (ii)将金属氧化物组合物(B)施加到步骤(i)中得到的催化剂载体(A)上,或将金属氧化物组合物(B)与催化剂载体(A)混合,得到氢化反应催化剂前体。 此外,描述了一种制备醇的方法,包括在通过还原由上述方法制备的氢化反应催化剂前体获得的催化剂的存在下,用氢催化还原有机羧酸酯。