摘要:
The present invention provides a process for preparing a fluorine-containing propene represented by the chemical formula CF3CF═CX1X2, wherein X1 is a hydrogen atom or chlorine atom, and X2 is a fluorine atom, chlorine atom, or hydrogen atom, by reacting a halogenated propene represented by the chemical formula CCIYZCF═CX1X2, wherein X1 and X2 are the same as above, and Y and Z may be the same or different and individually indicate a fluorine atom or chlorine atom, with anhydrous hydrogen fluoride in a gas phase in the presence of a chromium oxide or a fluorinated chromium oxide as a fluorination catalyst. The process of the present invention provides a fluorine-containing propene represented by the chemical formula CF3CF═CClX, wherein X is Cl, H or F, under relatively mild conditions at a high yield.
摘要翻译:本发明提供由化学式CF 3CF≡CX1 X 2表示的含氟丙烯的制备方法,其中X 1为氢原子或氯原子,X 2为氟原子,氯原子或氢原子,通过使卤代 由化学式CCIYZCF≡CX1X2表示的丙烯,其中X1和X2与上述相同,Y和Z可以相同或不同,并且分别表示氟原子或氯原子,在气相中用无水氟化氢 作为氟化催化剂存在铬氧化物或氟化铬氧化物。 本发明的方法在相对温和的条件下以高产率提供由化学式CF 3CF≡CClX表示的含氟丙烯,其中X为Cl,H或F。
摘要:
A material pressure feeding apparatus 10 includes a container 12 for receiving a bag 11, in which a viscous material M is contained, a press member 13 exerting a pressing force on the material, a pressure feeder 15 pressure-feeding, to the outside, the material M sucked by the pressing force by the press member 13, and an annular member 16 positioned on the outer peripheral side of the press member 13. The press member 13 has a supporting space S on the outer peripheral side thereof, and a ring portion 40 constituting an annular member 16 is supported in the supporting space S in a relatively movable state. Thus, even when the press member 13 is inclined, the annular member 16 is configured so as not to form a clearance between it and the inner peripheral surface of the container 12 without any influence of the inclination.
摘要:
A wet friction clutch-lubricant system wherein a wet friction clutch having a cellulose-based friction lining, or a device including such a clutch, is lubricated with a lubricant composition a major amount of oil of lubricating viscosity and minor effective amounts of performance enhancing additives including (a) one or more ashless dispersant; (b) one or more organic phosphorus compound and (c) one or more sodium salt of an organic acid; and optionally, (d) an auxiliary friction modifier.
摘要:
The present invention provides a technique for improving the security of access to contents.A virus/phishing site list contains a list of URLs of phishing sites, which masquerade as valid websites and are provided with an attempt to acquire private information including card numbers, PIN numbers and passwords, from users illegally. When a communication control unit receives, via a network, a packet that contains communication data for requesting access to a content, a search circuit compares the URL of the content to be accessed included in the communication data, with URLs of phishing sites included in the virus/phishing site list. If the address of the content to be accessed matches a URL of a phishing site, a process execution circuit will prohibit the access to the content.
摘要:
The present invention provides a process for preparing 1,1,2,3-tetrachloropropene, including heating 1,1,1,2,3-pentachloropropane in a gas phase in the absence of a catalyst to carry out a dehydrochlorination reaction. According to the process of the present invention, 1,1,2,3-tetrachloropropene (HCC-1230xa) can be efficiently produced by a simple and economically advantageous method that is suitable for industrial-scale production.
摘要:
Provided is a near-infrared spectroscopy apparatus using a phosphor.[Object]: Information in a specimen is observed by using light without contacting an optical fiber and an electronic circuit with the specimen. [Means for Solution]: A small and lightweight phosphor is contacted with the specimen to measure the fluorescence intensity at a separate position.
摘要:
A damper is provided to suppress the abnormal noise or air noise at the small opening of the damper. The damper includes a wall surface which forms an air flow passage, a stationary portion which extends from the wall surface to the center of a flow passage, and a rotating portion rotatably disposed in the flow passage, having one end in contact with a portion of the stationary portion at a downstream side of an air flow through the flow passage. A curved wall portion as a convex curved surface protruding to the center of the flow passage is formed on a position of the wall surface on which the air flow passing between the one end and the stationary portion impinges.
摘要:
A printing apparatus with a plug-and-play execution unit includes a plug-and-play control unit and a permission receiving unit. The plug-and-play execution unit can perform predetermined communication processing with an external control apparatus, and the predetermined communication processing is triggered by a connection with the control apparatus when the connection is established via a predetermined communication path. The plug-and-play control unit is configured to prohibit the plug-and-play execution unit from operating in a case where an instruction for activating the printing apparatus according to a specific operation mode is received from an outside source, so that the plug-and-play execution unit is prevented from performing the communication processing. The permission receiving unit is configured to receive permission for execution of plug and play. In a case where the permission for execution is received, the plug-and-play control unit cancels the prohibition of operation of the plug-and-play execution unit.
摘要:
To provide a seat having a three-dimensional complex undulated cushion body securing hardness in a stress direction and excelling in dispersibility of the stress and durability, and a method of manufacturing the same.A seat 1 includes frames (15, 25), cushion bodies (11, 21) obtained by forming a plurality of sheet-like fibrous structures 4a to 4d integrally, and covers (13, 23), wherein a sheet-like fibrous structure 4 is formed by performing cotton blending of thermally adhesive composite short fibers to inelastic crimped short fibers and thermally adhering crossing points, and the sheet-like fibrous structure 4 satisfies a relationship of A≧3B/2 when the number of short fibers arranged along a thickness direction is represented as A and the number of short fibers arranged along a direction perpendicular to the thickness direction is represented as B, and the cushion bodies 11, 21 are obtained by disposing in a state in which the sheet-like fibrous structures 4a to 4d are stacked and compressed in a mold 40, and forming the sheet-like fibrous structures 4a to 4d integrally by performing high pressure steam molding, and provided on the frames 15, 25 such that a thickness direction extends along a direction in which a load is applied.
摘要:
A function for checking whether components of an automatic analyzer properly operate is made available. A pressure sensor is installed in a sample path. A pressure waveform obtained during a washing water discharge operation 10 is used to check the opening/closing of a solenoid valve and the other operations of a dispensing mechanism. This function can also be exercised when a pressure sensor for a conventional sample suction check process is used. Even when the solenoid valve fails to open or close, an alarm is issued to indicate such a failure. This makes it possible to prevent a sample from thinning, thereby providing enhanced data reliability.