摘要:
The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a good selectivity and a high yield, as well as hydrogenolysis catalysts used in the production process. The present invention provides (1) a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing a copper component, wherein the catalyst is a catalyst (A) containing the copper component, an iron component and an aluminum component, or a catalyst (B) containing the copper component and a silicon component; and (2) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component, an iron component and an aluminum component, and (3) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component and a silicon component.
摘要:
The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a good selectivity and a high yield, as well as hydrogenolysis catalysts used in the production process. The present invention provides (1) a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing a copper component, wherein the catalyst is a catalyst (A) containing the copper component, an iron component and an aluminum component, or a catalyst (B) containing the copper component and a silicon component; and (2) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component, an iron component and an aluminum component, and (3) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component and a silicon component.
摘要:
A starter generator which comprises a rotor having a cuplike-shaped rotor yoke and magnets attached to an inner periphery of the rotor yoke, a stator mounted on a stator bracket and a protecting cover covering said rotor and stator, in which a hermetically sealed casing is constituted by said protecting cover and stator bracket, wherein a plurality of fans are provided on an outer surface of a bottom wall portion of said rotor yoke, a plurality of vent holes are provided through said bottom wall portion, said plurality of fans constitute a centrifugal fan which draws out air inside the rotor yoke through said vent holes and sends the air to an outer periphery of the rotor yoke, and a guide surface which guides the air sent to the outer periphery of the rotor yoke to a space inside the rotor yoke is provided on the stator bracket.
摘要:
Glycine derivatives represented by the following formula (1) and cleanser compositions containing the same: ##STR1## wherein R is a linear or branched alkyl group having 11 to 13 carbon atoms, a linear or branched alkenyl group having 11 to 13 carbon atoms, or a linear or branched hydroxyalkyl group having 11 to 13 carbon atoms, and M.sub.1 and M.sub.2 are the same or different from each other and each independently is a hydrogen atom, an alkali metal atom, 1/2 (an alkaline earth metal atom), an ammonium group, a monoalkanolammonium group having 1 to 22 carbon atoms, a dialkanolammonium group having 2 to 22 carbon atoms in total, a trialkanolammonium group having 3 to 22 carbon atoms in total, or a protonated basic amino acid, are excellent in foaming, detergency, comfort in use and safety, are antipollutive and can be used for various purposes, for example, a cleanser composition for the hair and body or tableware.
摘要:
A lifesaving apparatus comprising a scale usable as a life line, the scale comprising a high tensile strength wire with graduations in a longitudinal direction thereof, a drum for winding the metal wire thereonto, a casing accommodating the drum while permitting the same to rotate, a magnifying glass on the casing for allowing the graduations to be read, and a person carrying system. The high tensile strength wire of high tensile strength is formed of a stranded cable formed of a plurality of strands each having a tensile strength of at least 400 kgf/mm.sup.2 such that the high tensile strength wire is capable of suspending a person. The strands have a coat of a synthetic resin covering the strand. The person carrying system is connected to an end of the scale.
摘要:
A landing apparatus for an airship or the like is composed of a windlass 2, 3 mounted on the lower part of said airship 1, a tugging hawser 4, 5 releasably wound in said windlass 2, 3, a mooring device 6, 7 connected to a leading end of said hawser 4, 5 and a lashing rope 9, 10 horizontally extended spaced relation from a landing space 8. The airship can be landed by its own power when the hawser 4, 5 hanging from the airship is engaged with the lashing rope 9, 10, and is wound by the windlass 2, 3. The airship can be landed on a narrow landing space 8 since the airship is not blown off by the wind.
摘要:
The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a good selectivity and a high yield, as well as hydrogenolysis catalysts used in the production process. The present invention provides (1) a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing a copper component, wherein the catalyst is a catalyst (A) containing the copper component, an iron component and an aluminum component, or a catalyst (B) containing the copper component and a silicon component; and (2) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component, an iron component and an aluminum component, and (3) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component and a silicon component.
摘要:
The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a high selectivity as well as hydrogenolysis catalysts used in the hydrogenolysis reaction. The present invention provides a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing (A) a platinum-supporting heterogeneous catalyst component and (B) at least one catalyst component selected from the group consisting of tungsten components and molybdenum components, or in the presence of a catalyst containing a heterogeneous catalyst component formed by supporting (A′) platinum and the above catalyst component (B), on a common carrier; as well as catalysts for hydrogenolysis of polyhydric alcohols.
摘要:
A generating device that includes an AC/DC conversion unit having a rectifier circuit that rectifies an output of a magneto rotor and applies the output to a battery, and an inverter circuit that converts a voltage of the battery into an AC control voltage and applies the AC control voltage to an armature coil of the magneto generator, performs chopper control that controls switch elements of the inverter circuit so as to interrupt an output current of the magneto generator to control the output of the magneto generator when a rotational speed of the magneto generator is lower than a set speed, and performs drive control that applies the AC control voltage from the battery through the inverter circuit to the armature coil when the rotational speed becomes higher than the set speed, and changes a phase angle of the AC control voltage to control the output of the magneto generator.
摘要:
The disclosure relates to a catalytic converter for cleaning exhaust gas generated from automobiles or the like and more particularly to a structure for securing a catalyst carrier to a casing.In the converter, a casing for embracing, supporting and securing the catalyst carrier is provided with at least one end cover at the one end of the casing in the longitudinal direction thereof, the catalyst carrier is secured to the one end cover, but not secured to the remainder of the casing. The catalyst carrier may be secured to the end cover by sandwiching the flange portion of the catalyst carrier between the vertical step portion of the end cover and a pushing ring via buffering members. Alternatively, the catalyst carrier may be secured to the end cover by pushing a taper bushing having a wedge-shaped cross section into the space between the concave recessed portion provided on the surface of the catalyst carrier and the short pipe portion of the end cover. Mesh washers formed from a knitted metal wire mesh can be used for the buffering members.