公开(公告)号：US5895820A

公开(公告)日：1999-04-20

申请号：US115993

申请日：1998-07-15

申请人： Kazuo Tanaka ,  Masashi Yabuno ,  Hiroshi Ogawa ,  Atsushi Ohkoshi

发明人： Kazuo Tanaka ,  Masashi Yabuno ,  Hiroshi Ogawa ,  Atsushi Ohkoshi

IPC分类号： C07C51/265 ,  C07C51/573

CPC分类号： C07C51/265 ,  C07C51/573

摘要： A process for the production of a trimellitic acid by oxidizing dialkyl aromatic aldehyde and/or its oxide derivative in a liquid phase, the oxidation being carried out in a lower aliphatic carboxylic acid solvent having a water content of 5 to 70% by weight in the presence of a catalyst containing a heavy metal and bromine or being carried out in a solvent containing a lower aliphatic carboxylic acid in the presence of a bromine-manganese catalyst system containing zirconium and/or cerium, and a process for the production of high-quality trimellitic acid anhydride from the trimellitic acid.

摘要翻译： 通过在液相中氧化二烷基芳族醛和/或其氧化物衍生物来生产偏苯三酸的方法，该氧化是在含水量为5-70重量％的低级脂族羧酸溶剂中进行的 在含有锆和/或铈的溴 - 锰催化剂体系的存在下，存在含有重金属和溴的催化剂或在含有低级脂肪族羧酸的溶剂中进行的催化剂，以及生产高质量的方法 偏苯三酸的偏苯三酸酐。

公开(公告)号：US6063938A

公开(公告)日：2000-05-16

申请号：US900875

申请日：1997-07-25

申请人： Kazuo Tanaka ,  Kengi Nakaya ,  Atsushi Ohkoshi ,  Hideaki Fujita

发明人： Kazuo Tanaka ,  Kengi Nakaya ,  Atsushi Ohkoshi ,  Hideaki Fujita

IPC分类号： C07D315/00 ,  C07D309/00

CPC分类号： C07D315/00

摘要： Disclosed is a process for producing .epsilon.-caprolactone which comprises distilling a reaction mixture obtained by oxidation of cyclohexanone to separate impurities, wherein .epsilon.-caprolactone separated in a rectifying column is contacted with an oxygen-containing gas and then distilled. Thereby, a high quality of .epsilon.-caprolactone of in which no coloration occurs during long time preservation can be produced by industrial advantages.

摘要翻译： 公开了一种生产ε-己内酯的方法，其包括将通过环己酮氧化获得的反应混合物蒸馏到分离的杂质中，其中在精馏塔中分离的ε-己内酯与含氧气体接触，然后蒸馏。 因此，通过工业上的优点，可以制造长时间保存时不发生着色的高品质的ε-己内酯。

公开(公告)号：US4776008A

公开(公告)日：1988-10-04

申请号：US34923

申请日：1987-04-06

申请人： Atsushi Ohkoshi

发明人： Atsushi Ohkoshi

IPC分类号： H04M1/26 ,  H04M1/50

CPC分类号： H04M1/26 ,  H04M1/50

摘要： A key-in sound-generating circuit comprises a keyboard including dial number keys and function keys, a DTMF signal generator coupled, at the output terminal, with a telephone network, a sound generator for converting, into a sound, the output signal from the DTMF signal generator, and a data processor circuit for executing the key data processing according to the keying operation performed using the keyboard, and supplying a control signal to the DTMF signal generator, the data processor being responsive to the operation of the dial number key, to supply a DTMF signal to the keyboard and the sound generator, and responsive to the operation of the function key, to supply a single-frequency signal to the keyboard and the sound generator.

摘要翻译： 键入声音产生电路包括键盘，其包括拨号号码键和功能键，DTMF信号发生器在输出端与电话网络耦合，声音发生器，用于将来自 DTMF信号发生器和用于根据使用键盘执行的键控操作来执行密钥数据处理的数据处理器电路，并且向DTMF信号发生器提供控制信号，数据处理器响应于拨号号码键的操作， 向键盘和声音发生器提供DTMF信号，并且响应于功能键的操作，向键盘和声音发生器提供单频信号。