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公开(公告)号：US06588450B2
公开(公告)日：2003-07-08
申请号：US09788598
申请日：2001-02-21
IPC分类号： F17D114
CPC分类号： B65D88/10 , Y10T137/8342 , Y10T137/85954
摘要： This invention relates to a storage tank for a viscous oil containing easily polymerizable compounds. The storage tank of the present invention for storing viscous oil containing easily polymerizable compounds comprises a bottom plate, a side wall, a draw-off pipe and an inlet pipe. The bottom plate slopes downwardly toward the draw-off pipe, and an angle of downward inclination of the bottom plate is a gradient of at least 1/200. It becomes possible because of the storage tank to effectively prevent polymerization of easily polymerizable compounds contained in waste oil within the storage tank, and clogging of a pipe is suppressed considerably.
摘要翻译： 本发明涉及一种含有容易聚合的化合物的粘稠油储罐。 用于储存容易聚合的化合物的粘性油的本发明的储罐包括底板，侧壁，抽出管和入口管。 底板朝向排出管向下倾斜，底板的向下倾斜角度为至少1/200的坡度。 由于储罐能够有效地防止储罐内的废油中容易聚合的化合物的聚合，因此可以大幅度地抑制管堵塞。
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公开(公告)号：US06660881B2
公开(公告)日：2003-12-09
申请号：US09928574
申请日：2001-08-12
申请人： Hajime Matsumoto , Tetsuya Kajihara , Yasuhiro Shingai , Masatoshi Ueoka , Yukihiro Yoneda , Masahiro Uemura , Sei Nakahara , Fumio Munechika
发明人： Hajime Matsumoto , Tetsuya Kajihara , Yasuhiro Shingai , Masatoshi Ueoka , Yukihiro Yoneda , Masahiro Uemura , Sei Nakahara , Fumio Munechika
IPC分类号： C07C6954
摘要： The present invention provides a process for producing a (meth)acrylic ester which enables to obtain a (meth)acrylic ester in an excellent reaction yield. The process for producing a (meth)acrylic ester uses an alcohol and an acid as raw materials and an ion-exchange resin as a catalyst, and the process is characterized by comprising a dehydration step and an esterification step, wherein the esterification reaction step follows the dehydration step in which water impregnated in the ion-exchange resin is removed by using as a dehydrating solvent at least one member selected from the group consisting of the alcohol, the acid, and the resulting ester.
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