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    • 65. 发明授权
    • Method for producing lower alkyl acetate
    • 低级烷基乙酸酯的制备方法
    • US5457228A
    • 1995-10-10
    • US330115
    • 1994-10-27
    • Yuichi TokumotoKazuo SakamotoKikuo SasakiIsoo Shimizu
    • Yuichi TokumotoKazuo SakamotoKikuo SasakiIsoo Shimizu
    • C07C67/04
    • C07C67/04Y02P20/584
    • A method for producing a lower alkyl acetate in which undesirable polymerization of the starting material of olefin and deterioration of catalyst can be avoided, a higher catalytic efficiency and a higher reaction rate are attained, the installation of reaction equipment is inexpensive and the operation of the reaction can be carried out without difficulty. The method of the invention comprises the steps of feeding acetic acid and an olefin both in a liquid state and in cocurrent through a continuous flow type fixed bed reactor containing an acidic ion exchange resin catalyst(s) under the conditions that the molar ratio of acetic acid to the olefin in a feed current is in the range of 1.0 to 2.0 and an LHSV of acetic acid relative to the catalyst layer is 0.1 to 10.0 with maintaining the inlet of the catalyst bed at 70.degree. C. to 120.degree. C.; cooling the obtained reaction mixture to a temperature not lower than 70.degree. C.; and recycling it to the catalyst bed.
    • 一种生产低级烷基乙酸酯的方法,其中可以避免烯烃原料的不期望的聚合和催化剂的劣化,更高的催化效率和更高的反应速率,反应设备的安装便宜, 反应可以毫无困难地进行。 本发明的方法包括以下步骤:将乙酸和烯烃以液体状态并通过包含酸性离子交换树脂催化剂的连续流式固定床反应器在乙酸的摩尔比 在进料电流中酸与烯烃的摩尔比在1.0至2.0的范围内,乙酸的相对于催化剂层的LHSV为0.1至10.0,同时保持催化剂床的入口在70℃至120℃。 将得到的反应混合物冷却至不低于70℃的温度。 并将其再循环到催化剂床上。
    • 67. 发明授权
    • Orthogonal transformation processor for compressing information
    • 用于压缩信息的正交变换处理器
    • US5331585A
    • 1994-07-19
    • US58475
    • 1993-05-05
    • Masafumi TanakaKazuo SakamotoTatsuya FujiiRyo Fukui
    • Masafumi TanakaKazuo SakamotoTatsuya FujiiRyo Fukui
    • G06F7/38G06F17/14G06F15/332
    • G06F17/147
    • An orthogonal transformation processor has a first one-dimensional orthogonal transformation calculator for calculating a one-dimensional orthogonal transformation; a memory device for temporarily storing an output of the first one-dimensional orthogonal transformation calculator; a second one-dimensional orthogonal transformation calculator for calculating a one-dimensional orthogonal transformation and inputting an output of the memory device thereto; and an address generator for designating an address of the memory device and replacing row and column addresses with each other in accordance with a switching operation of writing and reading operations of the memory device. Instead of this address generator, the orthogonal transformation processor may have an address generator for designating an address of the memory device and replacing row and column addresses with each other in accordance with calculating operations of the first and second one-dimensional orthogonal transformation calculators. The orthogonal transformation processor may further have a reading-writing control section for reading one data of the memory device and writing new results calculated by the first one-dimensional orthogonal transformation calculator to the same address after the data reading operation.
    • 正交变换处理器具有用于计算一维正交变换的第一一维正交变换计算器, 用于临时存储第一一维正交变换计算器的输出的存储装置; 第二一维正交变换计算器,用于计算一维正交变换并向其输入存储器件的输出; 以及地址发生器,用于根据存储器件的写入和读取操作的切换操作指定存储器件的地址并且相互替换行和列地址。 代替该地址生成器,正交变换处理器可以具有地址发生器,用于根据第一和第二一维正交变换计算器的计算操作来指定存储器件的地址并且相互替换行和列地址。 正交变换处理器还可以具有读取写入控制部分,用于在数据读取操作之后读取存储器件的一个数据并将由第一个一维正交变换计算器计算出的新结果写入相同的地址。
    • 68. 发明授权
    • Orthogonal transformation processor for compressing information
    • 用于压缩信息的正交变换处理器
    • US5268853A
    • 1993-12-07
    • US616418
    • 1990-11-21
    • Masafumi TanakaKazuo SakamotoTatsuya FujiiRyo Fukui
    • Masafumi TanakaKazuo SakamotoTatsuya FujiiRyo Fukui
    • G06F7/38G06F17/14
    • G06F17/147
    • An orthogonal transformation processor has a first one-dimensional orthogonal transformation calculator for calculating a one-dimensional orthogonal transformation; a memory device for temporarily storing an output of the first one-dimensional orthogonal transformation calculator; a second one-dimensional orthogonal transformation calculator for calculating a one-dimensional orthogonal transformation and inputting an output of the memory device thereto; and an address generator for designating an address of the memory device and replacing row and column addresses with each other in accordance with a switching operation of writing and reading operations of the memory device. Instead of this address generator, the orthogonal transformation processor may have an address generator for designating an address of the memory device and replacing row and column addresses with each other in accordance with calculating operations of the first and second one-dimensional orthogonal transformation calculators. The orthogonal transformation processor may further have a reading-writing control section for reading one data of the memory device and writing new results calculated by the first one-dimensional orthogonal transformation calculator to the same address after the data reading operation.
    • 正交变换处理器具有用于计算一维正交变换的第一一维正交变换计算器, 用于临时存储第一一维正交变换计算器的输出的存储装置; 第二一维正交变换计算器,用于计算一维正交变换并向其输入存储器件的输出; 以及地址发生器,用于根据存储器件的写入和读取操作的切换操作指定存储器件的地址并且相互替换行和列地址。 代替该地址生成器,正交变换处理器可以具有地址发生器,用于根据第一和第二一维正交变换计算器的计算操作来指定存储器件的地址并且相互替换行和列地址。 正交变换处理器还可以具有读取写入控制部分,用于在数据读取操作之后读取存储器件的一个数据并将由第一个一维正交变换计算器计算出的新结果写入相同的地址。