摘要:
A catalyst for the production of unsaturated aldehydes is provided which is represented by the general formulaBi.sub.a W.sub.b Fe.sub.c Mo.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwherein Bi represents bismuth, W represents tungsten, Fe represents iron, Mo represents molybdenum, O represents oxygen, A represents nickel and/or cobalt, B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium, C represents at least one element selected from the group consisting of phosphorus, arsenic, boron, antimony, tin, cerium, lead and niobium, D presents at least one element selected from the group consisting of silicon, aluminum, zirconium and titanium, a, b, c, d, e, f, g, h and x represent the atomic ratios of the individual elements, and when d is taken as 12, a=0.1-10.0, b=0.5-10.0 (provided that a/b=0.01-6.0), c=0.1-10.0, e=2.0-20.0, f=0.001-10.0, g=0-10.0, and h=0-30, and x takes a number determined by the atomic valences of the individual elements. The Bi component is introduced thereinto in the form of an oxide obtained beforehand by calcining a mixture of a bismuth compound and a tungsten compound at a temperature of 600.degree. to 900.degree. C.
摘要:
A catalyst for the oxidation of propylene, said catalyst having the composition represented by the following formulaMo.sub.a W.sub.b Bi.sub.c Fe.sub.d A.sub.e B.sub.f C.sub.g D.sub.h O.sub.xwhereinA represents at least one element selected from the group consisting of nickel and cobalt,B represents at least one element selected from the group consisting of alkali metals, alkaline earth metals and thallium,C represents at least one element selected from the group consisting of phosphorus, arsenic, boron and niobium,D represents at least one element selected from the group consisting of silicon, aluminum and titanium,a, b, c, d, e, f, g, h, and x respectively represent the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, and O,a is from 2 to 12,b is from 0 to 10,the sum of a and b is 12,c is from 0.1 to 10.0,d is from 0.1 to 10.0,e is from 2 to 20,f is from 0.005 to 3.0,g is from 0 to 4,h is from 0.5 to 15 andx is a number determined by the atomic valences of the individual elements,and being molded in the shape of a hollow cylinder having an outside diameter of 3.0 to 10.0 mm, an inside diameter 0.1 to 0.7 times the outside diameter and a length 0.5 to 2.0 times the outside diameter.
摘要:
A process for producing acrylic acid from propylene through acrolein as an intermediate by catalytic vapor phase oxidation, which comprises passing a starting reactant gas mixture containing propylene, a molecular oxygen-containing gas and steam through a first-stage reactor packed with a molybdenum-containing multi-component catalyst, passing the resulting acrolein-containing gas through a second-stage reactor packed with a multi-component catalyst containing vanadium and molybdenum, introducing the resulting acrylic acid-containing gas to an acrylic acid collector thereby to recover acrylic acid in the form of an aqueous solution, and incorporating a part of the exhaust gas from the collector in the starting reactant gas mixture.
摘要:
A coordinate input device includes a housing containing a movable member, a resilient member formed of a coil spring, and first and second detectors for detecting the sliding direction and the sliding distance of the movable member. The movable member in an initial position before a sliding operation faces a supporter of a first cover provided in the housing. When the movable member is slid in a certain direction, the resilient member is stretched in the certain direction and the first and second detectors detect the sliding direction and the sliding distance of the movable member. When the sliding operation of the movable member is finished, a resilient force of the resilient member stretched in the certain direction forces the movable member to return automatically to the initial position.
摘要:
A switch device is provided that includes a first switch portion in which an upper electrode and lower electrodes face each other at a predetermined gap and a second switch portion having metal domes which are disposed at a lower side facing the first switch portion and expand to a predetermined height. A first spacer having a predetermined thickness A is disposed in the first switch portion to form a gap between the upper electrode and the lower electrodes, a second spacer having a thickness B equal to or greater than the expanded height of the metal domes is disposed in the second switch portion, and the thickness of the second spacer is greater than that of the first spacer.
摘要:
A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.
摘要:
An input device capable of easily achieving a high performance is provided. The input device includes an input unit in which an input detecting unit of an electrostatic sensor is disposed on an input portion and an illumination unit in which an illumination portion is disposed on a rear surface of the input portion of the input unit. The input detecting unit of the electrostatic sensor is formed such that it can perform instruction display by illuminating light from the illumination unit.
摘要:
A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.
摘要:
A switch device is provided that includes a first switch portion in which an upper electrode and lower electrodes face each other at a predetermined gap and a second switch portion having metal domes which are disposed at a lower side facing the first switch portion and expand to a predetermined height. A first spacer having a predetermined thickness A is disposed in the first switch portion to form a gap between the upper electrode and the lower electrodes, a second spacer having a thickness B equal to or greater than the expanded height of the metal domes is disposed in the second switch portion, and the thickness of the second spacer is greater than that of the first spacer.
摘要:
An input device capable of easily achieving a high performance is provided. The input device includes an input unit in which an input detecting unit of an electrostatic sensor is disposed on an input portion and an illumination unit in which an illumination portion is disposed on a rear surface of the input portion of the input unit. The input detecting unit of the electrostatic sensor is formed such that it can perform instruction display by illuminating light from the illumination unit.