摘要:
A catalyst having a high activity and mechanical strength and a process for preparing it are provided. The catalyst comprises molybdenum, vanadium, copper and antimony as essential components. The peak in X-ray diffractometry of the catalytically active component with Cu--K.alpha. line is largest at 22.2.+-.0.30.degree. (2.theta.).
摘要:
The present invention concerns a method for producing acrolein and acrylic acid by carrying out vapor phase catalytic oxidation of propylene with molecular oxygen or a gas containing molecular oxygen using a oxidation catalysts comprising Mo, Bi and Fe as an essentially element and a fixed bed multitubular reactor, which comprisesa) using a plurality of supported catalysts having different activities, which was obtained, for example, by different calcination method in the production process of the supported catalysts,b) setting a catalyst layer in a reaction tube, which is formed by dividing it into plural portions in the tube axial direction, andc) arranging the aforementioned plural supported catalysts in such order that the activity becomes high toward the outlet from the inlet of the material gas in the reaction tube axial direction.According to the present invention, the generation of hot spot can be avoided and over oxidation reaction can be avoided and the acrolein and acrylic acid are produced constantly for a prolonged period of time.
摘要:
A catalyst for the production of unsaturated aldehyde and unsaturated acid, obtained by loading a catalytically active component on a carrier and calcining the loaded catalyst, characterized by an average particle diameter of the catalyst of 4 to 16 mm, an average particle diameter of the carrier of 3 to 12 mm, a calcining temperature of 520 to 600.degree. C. and an amount of the catalytically active component loaded on the carrier of 5 to 80% by weight �weight of the catalytically active component)/(weight of the catalytically active component+weight of the carrier+weight of a strength improver)!, and a process for producing unsaturated aldehyde and unsaturated acid with the catalyst.
摘要:
An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.
摘要:
An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.
摘要:
An imprint apparatus for transferring a pattern to an imprint material using a mold includes a substrate holding mechanism and a control unit. The substrate holding mechanism is configured to be divided into a plurality of areas, capable of varying an attracting force for attracting the substrate in each of the areas and to hold the substrate. The control unit is configured to, when a plurality of shots is formed on the substrate, control an imprint operation of transferring the pattern to the plurality of shots which are not adjacent to one another, makes the attracting force in the area of the substrate holding mechanism corresponding to the shot to which the pattern is transferred among the plurality of areas smaller than the attracting force at the time of the imprint operation and suck the substrate.
摘要:
The present invention relates to a compound which has a glucokinase-activating effect and is useful as a therapeutic agent for diabetes mellitus, being represented by a formula (I): [wherein X1 represents a nitrogen atom, sulfur atom, oxygen atom or the like; R1 represents a 6- to 10-membered aryl group, 5- to 7-membered heteroaryl group or the like; D represents an oxygen atom or sulfur atom; R and R3 are the same or different, each representing a hydrogen atom, lower alkyl group or the like; a formula (II) represents an optionally substituted 5- to 7-membered heteroaryl group or the like; a formula (III) represents a monocyclic or bicyclic heteroaryl group] or a pharmaceutically acceptable salt thereof.
摘要翻译:本发明涉及具有葡糖激酶活化作用并可用作糖尿病治疗剂的化合物,其由式(I)表示:其中X 1表示氮原子, 硫原子,氧原子等; R 1表示6至10元芳基,5至7元杂芳基等; D表示氧原子或硫原子; R和R 3相同或不同,各自表示氢原子,低级烷基等; 式(II)表示任选取代的5〜7元杂芳基等; 式(III)表示单环或双环杂芳基]或其药学上可接受的盐。
摘要:
A method of performing an imprint process on each of a plurality of shot regions of a substrate, wherein each shot region includes at least one of at least one valid chip area and at least one invalid chip area, the invalid chip area including an inhibited area in which resin coating is inhibited, the imprint process for a shot region including both the invalid chip area and the valid chip area includes coating the valid chip area of the shot region with the resin, bringing a pattern surface of a mold into contact with the resin, and curing the resin, and in the step of coating, at least the inhibited area of the invalid chip area is not coated with the resin.
摘要:
A scanning exposure apparatus includes a first movable stage being movable while carrying a first object thereon, a second movable stage being movable while carrying a second object thereon, a projection optical system for projecting a pattern, a control system serviceable to scan the first and second movable stages in a timed relation and relative to the projection optical system and to project a pattern of the first object onto the second object through the projection optical system, a first reference plate fixedly mounted on the first movable stage, a second reference plate fixedly mounted on the second movable stage, and a detecting system serviceable to scan at least one of the first and second movable stages to detect a relative positional relationship between alignment marks of the first and second reference plates to thereby determine a scan direction of one of the first and second movable stages.
摘要:
A projection exposure apparatus is disclosed for exposing a semiconductor wafer to a pattern, formed on a reticle, by projection using a projection lens system. The apparatus includes an alignment optical system disposed at a side of the wafer remote from the projection lens system. The alignment optical system is used to detect an alignment mark provided on the wafer, from the back of the wafer. In accordance with the detection, the wafer is moved so that its alignment mark is brought into a predetermined positional relation with the alignment optical system, whereby the reticle and the wafer are relatively aligned. With this arrangement, the wafer alignment mark can be detected without being adversely affected by a resist layer applied to the wafer surface. Thus, the reticle and the wafer can be aligned very accurately.