Abstract: The present invention provides a method and an apparatus in which after diluting ozone with gas, the ozone concentration is maintained low under conditions in that noble gas is solidified, ozone molecules comprising 17O or 18O, which is a stable oxygen isotope, is photodissociated stably and selectively to obtain oxygen molecules, and thereby 17O or 18O is concentrated continuously in the oxygen molecules with high efficiency. In an ozone photodissociation step 13, a mixture gas containing CF4 and ozone is irradiated with light to dissociate selectively ozone isotopologues comprising a desired oxygen isotope in ozone to oxygen molecules. After trapping the obtained mixture gas in a trapping step 31, the oxygen molecules are separated from the non-dissociated ozone molecules and CF4 in the trapped mixture gas by low-temperature distillation and so forth, and the oxygen isotopes are concentrated in the separated oxygen molecules in an oxygen isotope concentration step 14.

Abstract: An apparatus and a method for purifying the air used in cryogenic air separation are described, which are capable of effectively removing nitrogen oxides and/or hydrocarbons. The apparatus comprises an adsorber comprising an adsorption cylinder that has a first adsorbing layer and a second adsorbing layer therein. The first adsorbing layer is composed of a first adsorbent capable of selectively adsorbing water in the air. The second adsorbing layer is composed of a second adsorbent capable of selectively adsorbing nitrogen oxide and/or hydrocarbon in the air passing the first adsorbing layer, wherein the second adsorbent comprises an X zeolite containing magnesium ion as an ion-exchangeable cation.

Abstract: An apparatus and a method for purifying the air used in cryogenic air separation are described, which are capable of effectively removing nitrogen oxides and/or hydrocarbons. The apparatus comprises an adsorber comprising an adsorption cylinder that has a first adsorbing layer and a second adsorbing layer therein. The first adsorbing layer is composed of a first adsorbent capable of selectively adsorbing water in the air. The second adsorbing layer is composed of a second adsorbent capable of selectively adsorbing nitrogen oxide and/or hydrocarbon in the air passing the first adsorbing layer, wherein the second adsorbent comprises an X zeolite containing magnesium ion as an ion-exchangeable cation.

Abstract: There is provided a polyphenylene ether resin composition, comprising: a component (A) containing a polyphenylene ether resin; a component (B) containing a phosphate compound represented by the following formula (I); and a component (C) containing a condensed phosphate compound represented by the following formula (II), wherein R1, R2 and R3 are independently of one another an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms or a hydroxyl group; R4, R5, R6 and R7 are independently of one another a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms or a hydroxyl group, provided that a case of R4=R5=R6=R=H is excluded; n is an integer of not less than 1; Z is an organic group having 1 to 10 carbon

Abstract: There is provided a size and a shape capable of decreasing an unit power consumption, an adsorption column having the optimal shape for the selected adsorbent, and a pressure swing adsorption separation apparatus having an excellent pressure swing adsorption separation performance. In the present invention, an adsorbent having an equivalent diameter within a range of 1.0±0.2 mm or within a range from 12 mesh to 20 mesh is used and the adsorption column is established such that a superficial velocity u [m/s] of a raw material air is set to be within a range of ±25% of u=0.07a +0.095 to the equivalent diameter a [mm].

Abstract: A carbonaceous material for an electrical double layer capacitor is produced by performing a halogenation treatment step wherein a halogenated dry-distilled charcoal is obtained by bringing a dry-distilled charcoal into contact with a halogen gas; a molding treatment step of adding a binding agent to the halogenated dry-distilled charcoal to form a molded article; and a dehalogenation treatment step wherein a part or all of the halogen in the molded article is eliminated. The carbonaceous material for an electrical double layer capacitor obtained by this method is impregnated with sulfuric acid to form a carbon electrode for an electrical double layer capacitor. This electrode is used to form an electrical double layer capacitor.

Abstract: A laminate characterized by consisting of at least 4 layers and having (A) a seal layer which is a polypropylene having a melting point of at least 160.degree. C. as the first layer which is the innermost layer, (B) an adjacent layer consisting of a mixture of 20 to 90% by weight of a polypropylene and 80 to 10% by weight of a 4-methylpentene-1 resin as the second layer, (C) an intermediate layer consisting of a polypropylene having a melting point of at least 160.degree. C. and a melt index of 0.5 to 30 as the third layer and (D) a substrate layer consisting of a polypropylene having a melting point of at least 160.degree. C. and a melt index of 0.01 to 4 as the outermost layer, wherein the melt index of the seal layer (A) is at least 1.