摘要:
A high-silica content zeolite having a novel crystal structure, a zeolite membrane and manufacturing methods for these are provided, and the present invention relates to a zeolite having the chemical composition represented by [(Si36-xTy.O72).Mz] (wherein M is a cation of an alkali metal such as Li, Na, K or Rb, T represents Al, Ga, Fe and Ce as skeleton substituting elements, x satisfies 0≦x≦3.0, y satisfies 0≦y≦1.0 and z satisfies 0≦z≦3.0), and having a micropore formed of covalent bonds between Si and O atoms, with a specific diffraction peak at 2θ in powder x-ray diffraction, together with a zeolite membrane and methods for manufacturing these.
摘要翻译:提供了具有新型晶体结构的高二氧化硅含量沸石,沸石膜及其制造方法,本发明涉及具有由[(Si u> (其中M是碱金属如Li,Na,K或Rb的阳离子)(其中M是碱金属的阳离子,例如Li,Na,K或Rb ,T表示Al,Ga,Fe和Ce作为骨架取代元素,x满足0 <= x <= 3.0,y满足0 <= y <= 1.0,z满足0 <= z <= 3.0),并具有微孔 由Si和O原子之间的共价键形成,在粉末x射线衍射中在2θ处具有特定衍射峰,以及沸石膜及其制造方法。
摘要:
A method for splicing optical fibers is provided which is applied to an optical fiber using, as the material of a clad layer, hexafluoroalkyl methacrylate, a residuum of which after pryolysis due to a thermogravimetric analysis is 10% or less by weight. The method comprises a step of removing a protective layer and a cushioning layer at an end portion of the optical fiber, to expose the clad layer, a step of positioning two optical fibers, the end portions of which have been treated, such that the end faces of cores of the two optical fibers are opposed and close to each other, and a step of heating the end portions of the two optical fibers by electrical discharge, to remove the exposed clad layer by pyrolysis and fusion bond the opposed end faces of the cores to each other.