Patents Assigned to Mitsubishi Chemical Engineering Corporation
  • Publication number: 20180119186
    Abstract: This method for producing a compound uses a continuous tank reactor which is provided with two or more reaction tanks for producing the compound and with a reaction liquid feeding pipe that feeds a reaction liquid from an upstream reaction tank to a downstream reaction tank, said method being characterized in that the Reynold's number of the reaction liquid that flows in the reaction liquid feeding pipe is configured to be 1800-22000. Furthermore, this compound production system is used in said method for producing a compound, and is formed by housing at least one of the reaction tanks in a portable container.
    Type: Application
    Filed: July 3, 2015
    Publication date: May 3, 2018
    Applicants: Mitsubishi Rayon Co., Ltd., Mitsubishi Chemical Engineering Corporation
    Inventors: Makoto KANO, Takamitsu KARIYA, Hiroyasu BANBA, Tomohiko MAWATARI, Takeshi KATO, Tsutomu HIRACHI, Keizo TACHIBANA, Masahiro KAMIDE, Megumu MORIMOTO
  • Patent number: 9815000
    Abstract: A distillation apparatus for NMP including a first distillation column in which the spent NMP as a liquid to be treated is subjected to distillation; and a second distillation column in which bottoms from the first distillation column are further subjected to distillation, the distillation apparatus being provided with an automatic treatment function including a start-up function, and then a continuous treatment operation of the distillation apparatus being initiated; and an operational mode switching function in which upon the continuous treatment operation, an operational mode of the distillation apparatus being switched again to the circulation operation according to a level of the liquid in the raw material tank or a level of the liquid in the product tank.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: November 14, 2017
    Assignee: MITSUBISHI CHEMICAL ENGINEERING CORPORATION
    Inventors: Kenyo Miyata, Tomoyuki Kawada, Katsuhiro Katou
  • Publication number: 20170204030
    Abstract: The present invention aims at providing a method for producing a high-concentration alcohol from a water-alcohol mixture, in which the overall process is efficient and the present invention relates to a production method of a high-concentration alcohol, including a water adsorption step of adsorbing water of a water-alcohol mixture on an adsorption column to obtain a first concentrated alcohol, a water desorption step of introducing an alcohol to obtain a hydrous alcohol, and a membrane separation step of introducing the hydrous alcohol into a membrane separation unit provided with a membrane composite containing zeolite having an SiO2/Al2O3 molar ratio of 5 to 15 to obtain a second concentrated alcohol.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Applicants: MITSUBISHI CHEMICAL CORPORATION, MITSUBISHI CHEMICAL ENGINEERING CORPORATION
    Inventors: Kazuhide MAEDA, Koichi YAMAZAKI, Hiroyuki KAKIUCHI, Takeshi TAHARA, Takahiko TAKEWAKI
  • Patent number: 7749464
    Abstract: A plate type catalytic reactor in which components of a starting material gas react comprises a plurality of pairs of heat transfer plates, each pair being formed of two sheets of corrugated plates joined to each other and each pair having a plurality of interior heat transfer medium flow passages, that are arranged so that projected surface parts and recessed surface parts of the corrugated plates of adjacent heat transfer plates are opposed to each other and so that the plurality of pairs of corrugated plates placed in contiguous non-contacting relationship define a plurality of catalyst bed regions in which catalyst material is placed, each having an inlet for the flow of starting gas material and an outlet for the egress of reaction product, wherein the direction of flow of the heat transfer medium through the passages is perpendicular to the direction of flow of starting material gas through the plurality of catalyst regions.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: July 6, 2010
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Chemical Engineering Corporation
    Inventors: Yasuyuki Sakakura, Youji Kawatani, Teruo Saitou
  • Publication number: 20070007185
    Abstract: The present invention relates to a recycling feed apparatus for thinner which serves for purifying a used thinner recovered from a coating treatment process to control a concentration of impurities in the thinner within an adequate range, and recycling the thinner to the coating treatment process, wherein the concentration of the impurities can be detected at a high accuracy, thereby not only enabling feed of the thinner whose concentration is fully controlled but also enhancing a recovery rate of the thinner.
    Type: Application
    Filed: July 25, 2006
    Publication date: January 11, 2007
    Applicant: MITSUBISHI CHEMICAL ENGINEERING CORPORATION
    Inventors: Yuji Tanaka, Norihiro Takasaki
  • Publication number: 20050226793
    Abstract: A plate type catalytic reactor capable of improving reaction performance and extending the service life of the catalyst by controlling efficiently a temperature profile in a catalyst layer, is presented. A plate type catalytic reactor characterized in that a plurality of pairs of heat transfer plates, each formed of two sheets of corrugated plates joined to each other and each having a plurality of heat transfer medium flow passages, are arranged so that projected surface parts and recessed surface parts of the corrugated plates of adjacent heat transfer plates are opposed to each other to form a catalyst layer, wherein a circular or elliptic arc shape formed in the corrugated palates may be changed to increase the thickness of the catalyst layer from the inlet toward the outlet for a starting material gas fed to the catalyst layer.
    Type: Application
    Filed: June 1, 2005
    Publication date: October 13, 2005
    Applicants: MITSUBISHI CHEMICAL CORPORATION, MITSUBISHI CHEMICAL ENGINEERING CORPORATION
    Inventors: Yasuyuki Sakakura, Youji Kawatani, Teruo Saitou
  • Publication number: 20040227955
    Abstract: There are provided a thickness-measuring method and apparatus capable of measuring thicknesses of respective layers of a multilayer thin film used in functional resin films or information electronic materials at a still higher accuracy and instantaneously, which are also applicable to a sample in production line non-destruct. In the thickness-measuring method for the multilayer thin film, a reflected or transmitted light obtained by irradiating a white light onto a sample (7) having the multilayer thin film is spectrally dispersed to obtain a spectrum thereof; and the obtained spectrum is transformed into a frequency signal which is then subjected to wavelet processing to remove components other than coherence signals from the frequency signal, and then the resultant signal is subjected to frequency analysis to detect the thicknesses of layers of the thin film.
    Type: Application
    Filed: April 8, 2004
    Publication date: November 18, 2004
    Applicant: Mitsubishi Chemical Engineering Corporation
    Inventors: Shigeki Kudou, Kouji Eki, Eita Mure