会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 63. 发明申请
    • PROCESS FOR PRODUCING ACETIC ACID
    • 生产乙酸的方法
    • US20130310603A1
    • 2013-11-21
    • US13994373
    • 2011-12-01
    • Masahiko ShimizuRyuji SaitoHiroyuki Miura
    • Masahiko ShimizuRyuji SaitoHiroyuki Miura
    • C07C51/12
    • C07C51/12C07C53/08
    • Acetic acid is produced while inhibiting an increased concentration or production of hydrogen iodide in a carbonylation reactor or corrosion of the carbonylation reactor.A production process of acetic acid comprises a reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst (e.g., a rhodium catalyst), an ionic iodide (e.g., lithium iodide), and methyl iodide in a carbonylation reactor; and in the process, (i) the concentration of the metal catalyst is maintained at not less than 860 ppm on the basis of weight, the concentration of water is maintained at 0.8 to 15% by weight, the concentration of methyl iodide is maintained at not more than 13.9% by weight, and the concentration of methyl acetate is maintained at not less than 0.1% by weight, in a whole liquid phase in the reactor, and/or (ii) the concentration of the metal catalyst is maintained at not less than 660 ppm on the basis of weight, the concentration of water is maintained at 0.8 to 3.9% by weight, the concentration of the ionic iodide is maintained at not more than 13% by weight, the concentration of methyl iodide is maintained at not more than 13.9% by weight, and the concentration of methyl acetate is maintained at not less than 0.1% by weight, in a whole liquid phase in the reactor.
    • 产生乙酸,同时抑制羰基化反应器中碘化氢的浓度增加或羰基化反应器的腐蚀。 乙酸的生产方法包括在包含金属催化剂(例如,铑催化剂),离子碘化物(例如碘化锂)和甲基的催化剂体系存在下,连续使甲醇与一氧化碳反应的反应步骤 碘化物在羰基化反应器中; 在该过程中,(i)金属催化剂的浓度基于重量维持在不低于860ppm,水的浓度保持在0.8至15重量%,甲基碘的浓度保持在 不超过13.9重量%,乙酸甲酯的浓度在反应器的整个液相中保持在不小于0.1重量%,和/或(ii)金属催化剂的浓度保持不变 基于重量小于660ppm,水的浓度保持在0.8〜3.9重量%,离子碘的浓度保持在不超过13重量%,甲基碘的浓度保持不变 大于13.9重量%,并且在反应器中的整个液相中,乙酸甲酯的浓度保持在不小于0.1重量%。
    • 68. 发明授权
    • Charging device and image forming apparatus
    • 充电装置及成像装置
    • US07496318B2
    • 2009-02-24
    • US11510570
    • 2006-08-28
    • Hiroyuki MiuraMinoru RokutanTakanori SugaYukiko Oda
    • Hiroyuki MiuraMinoru RokutanTakanori SugaYukiko Oda
    • G03G15/02
    • G03G15/0233
    • The invention provides a charging device including a charging roll and a voltage application unit which is capable of applying to the charging roll a voltage in which an alternating current voltage is superimposed on a direct current voltage, the alternating current (Iac) which flows through the charging roll satisfying the following Equation (1), the charging roll satisfying the following conditions (a) to (c), and the charging roll contacting an image supporter to charge the image supporter: Iac/I(inflection)≦1.2  Equation (1) (in the Equation (1), I (inflection) represents the flexion point of lac) (a) the fluctuation of the outside diameter is 0.1 mm or less (b) resistance (common logarithm) is 9.0 log·Ω or less (c) resistance variation (common logarithm) is 0.5 log·Ω or less.
    • 本发明提供了一种充电装置,包括充电辊和电压施加单元,其能够向充电辊施加电流,其中交流电流叠加在直流电压上,交流电流(Iac)流过 充电辊满足以下等式(1),充电辊满足以下条件(a)至(c),充电辊与图像支持者接触以对图像支持者充电:<?in-line-formula description =“In 线性公式“end =”lead“?> Iac / I(拐点)<= 1.2公式(1)<?in-line-formula description =”In-line Formulas“end =”tail“?> (1),I(拐点)表示lac的屈曲点)(a)外径的波动为0.1mm以下(b)电阻(通常对数)为9.0log.Omega以下(c)电阻变化( 常用对数)为0.5log.Omega以下。
    • 69. 发明申请
    • Distillation Process
    • 蒸馏工艺
    • US20080214866A1
    • 2008-09-04
    • US11791326
    • 2005-12-05
    • Hiroyuki MiuraKenichiro Kawazumi
    • Hiroyuki MiuraKenichiro Kawazumi
    • C07C51/42
    • C07C51/44C07C53/08
    • A mixture containing hydrogen iodide and water and having a water content of not more than 5% by weight (particularly not more than 3% by weight) in a distillation system is distilled to prevent condensation of hydrogen iodide in the distillation system. The mixture may comprise hydrogen iodide, water, methanol, methyl iodide, acetic acid, and methyl acetate. Even when the mixture contains hydrogen iodide at a concentration of 1 to 3000 ppm on the basis of weight, an acetic acid product having a concentration of hydrogen iodide of not more than 50 ppm can be obtained by withdrawing a fraction containing hydrogen iodide from the top of the column, and withdrawing acetic acid as a side-cut stream or a stream from the bottom of the column. Such a process (distillation process) effectively inhibits condensation of hydrogen iodide in the distillation system and corrosion in the distillation system.
    • 在蒸馏系统中蒸馏含有碘化氢和水并且含水量不超过5重量%(特别是不超过3重量%)的混合物,以防止蒸馏系统中碘化氢的冷凝。 该混合物可以包含碘化氢,水,甲醇,甲基碘,乙酸和乙酸甲酯。 即使当混合物含有基于重量的浓度为1至3000ppm的碘化氢时,可以通过从顶部抽出含有碘化氢的馏分来获得碘化氢浓度不大于50ppm的乙酸产物 并且从塔的底部排出乙酸作为侧馏分物流或物流。 这种方法(蒸馏方法)有效地抑制了蒸馏系统中碘化氢的冷凝和蒸馏系统中的腐蚀。