Abstract:
Provided is a fuel cell which can obtain a sufficiently high electromotive force even under a low-temperature condition such as room temperature without using a deleterious substance or platinum. This fuel cell uses an electrolyte layer containing a layer-shaped metal oxide which has been subjected to the steam treatment.
Abstract:
A long shaft inner surface machining apparatus of the present invention includes: a long shaft support device 10 that fixes a long shaft 1 so as not to bend; a machining head 20 capable of being inserted into the prepared hole 2 of the long shaft 1 in the axial direction; a head support device 30 that is coupled with the machining head 20 from one end of the long shaft 1 through the prepared hole 2 and moves the machining head 20 in the axial direction; and a blade drive device 40 that is coupled with the machining head from the other end of the long shaft 1 through the prepared hole 2 and rotary-drives the blade 29 around a shaft axis.
Abstract:
Provided is a novel catalyst that can produce acrolein and acrylic acid in high yields using glycerol as starting material. The disclosed glycerol dehydration catalyst has niobic oxide synthesized by hydrothermal synthesis as the main component.
Abstract:
The invention concerns the production of acrylic acid from propane in the presence of molecular oxygen. Said method consists in passing a gas mixture comprising propane, molecular oxygen, water vapour and, optionally, an inert gas, on a catalyst of formula (I) Mo1VaTebNbcSidOx to oxidize propane into acrylic acid, the propane/molecular oxygen mol ratio in the initial gas mixture being not less than 0.5.
Abstract translation:本发明涉及在分子氧存在下由丙烷生产丙烯酸。 所述方法包括将包含丙烷,分子氧,水蒸汽和任选的惰性气体的气体混合物在式(I)的催化剂上通入Mo 1 H 2, 将丙烷氧化成丙烯酸,丙烷/分子氧摩尔比为1 / 初始气体混合物不小于0.5。
Abstract:
The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water, vapor, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): Mo1VaSbbNbcSidOx, wherein: a ranges between 0.006 and 1, inclusively; b ranges between 0.006 and 1, inclusively; c ranges between 0.006 and 1, inclusively; d ranges between 0 and 3.5, inclusively; and x is the amount of oxygen bound to the other elements and depends on their state of oxidation, for oxidizing propane into acrylic acid, and which is carried out in the presence of molecular oxygen, the propane/molecular oxygen mol ratio in the initial gas mixture is not less than 0.5.
Abstract:
The invention concerns a method for producing acrylic acid from propane, which consists in passing a gas mixture including propane, water, vapour, and optionally an inert gas and/or molecular oxygen, on a catalyst of formula (I): Mo1VaSbbNbcSidOx, wherein: a ranges between 0.006 and 1, inclusively; b ranges between 0.006 and 1, inclusively; c ranges between 0.006 and 1, inclusively; d ranges between 0 and 3.5, inclusively; and x is the amount of oxygen bound to the other elements and depends on their state of oxidation, for oxidizing propane into acrylic acid, and which is carried out in the presence of molecular oxygen, the propane/molecular oxygen mol ratio in the initial gas mixture is not less than 0.5.
Abstract:
A dimer of fluorine-containing ethane can be obtained in a good selectivity by contacting fluorine-containing ethane of the formula:CF.sub.3 --CClX.sup.1 X.sup.2 (I)wherein each of X.sup.1 and X.sup.2 is a fluorine or chlorine atom to a nickel catalyst.
Abstract translation:通过使下式的CF 3 -CCl X 1 X 2(I)的含氟乙烷与镍催化剂接触,其中X1和X2各自为氟或氯原子,可以以良好的选择性获得含氟乙烷的二聚体。
Abstract:
Provided are a solid electrolyte membrane useful in achieving strong electromotive force in a fuel battery, and a fuel battery cell produced with this membrane. The solid electrolyte membrane includes a substrate made of a sheet material and having a plurality of openings penetrating the substrate in its thickness direction, and a solid electrolyte layer provided on at least one of the faces of the substrate. The fuel battery cell includes a solid electrolyte membrane having the solid electrolyte layer on one of the faces of the substrate, and a catalyst layer containing a precious metal and provided on the other of the faces of the substrate, with the solid electrolyte layer and the catalyst layer being in contact with each other in the openings of the substrate.
Abstract:
The invention concerns the selective oxidation of propane into acrylic acid using highly selective catalysts and relates more particularly to a process for preparing these improved catalysts and their use for the production of acrylic acid from propane. The improved catalysts having the formula: Mo1Va(Te and/or Sb)b(Nb and/or Ta)cSidOx wherein a is between 0.006 and 1, b is between 0.006 and 1, c is between 0.001 and 0.5, d is between 0 and 3.5, and x is dependant on the oxidation state of the other elements, are obtained by adding a doping agent constituted by at least one component selected from Nb and Ta to a mainly orthorhombic phase prepared by hydrothermal method of a Mo—V—(Te and/or Sb)—O mixed metal oxide, optionally containing Nb and/or Ta and/or Si.
Abstract translation:本发明涉及使用高选择性催化剂将丙烷选择性氧化成丙烯酸,更具体地涉及一种制备这些改进的催化剂的方法及其用于从丙烷生产丙烯酸的用途。 具有以下分子式的改进的催化剂:Mo 1 H a(Te和/或Sb)b(Nb和/或Ta) 其中a在0.006和1之间,b在0.006和1之间,c在0.001和0.5之间,d在0和0之间。 3.5,x取决于其它元素的氧化态,通过将由选自Nb和Ta中的至少一种组分构成的掺杂剂添加到通过Mo-V-(Te)的水热法制备的主要正交晶相中获得 和/或Sb)-O混合金属氧化物,任选地含有Nb和/或Ta和/或Si。