巻号一覧
6 巻, 3 号
選択された号の論文の3件中1～3を表示しています
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堀尾 哲一郎, 向林 一吉, 岡田 富男, 金崎 健児1963 年 6 巻 3 号 p. 183-190
発行日: 1963/03/25
公開日: 2009/01/30
ジャーナル フリーWith an objective of finding correlation between the behavior of asphalt paving mixture and the property of its component asphalt, the authors carried out routine tests such as penetration, ductility, and viscosity on asphalt, and Marshall stability and bending strength on paving mixture.
Results of these tests are summarized as follows:
1. Some rheological properties of asphalt are greatly influenced not only by the test temperature, but also by the time scale, and their dependence on each factor varies with kind of asphalt.
2. It seems that asphalt's dependence on time scale is similar to its temperature susceptibility.
3. The above relationship also applies to asphalt paving mixture.抄録全体を表示PDF形式でダウンロード (500K) -
中村 政宣, 郡司 孝紀1963 年 6 巻 3 号 p. 191-196
発行日: 1963/03/25
公開日: 2009/01/30
ジャーナル フリーThis is to describe the formation and properties of a complex obtained by reaction of propylene with palladium (II) chloride in non-polor solvents such as n-heptane, carbon tetrachloride and p-xylene.
The isolated complex was assumed to be propylene-palladium (II) chloride complex as judged from X-ray diffraction, infrared spectra and gaschromatographic analysis of gaseous components which evolved by its thermal decomposition.
The complex behaves like a Zeise's salt, i.e., hydrolysis of the complex gives acetone and reaction with sodium acetate in acetic acid gives isopropenylacetate.
A stable yellow-colored complex was formed from anilin and palladium (II) chloride.
Infrared spectra of this stable complex is compared with that of anilin and benzonitril-palladium (II) chloride complex.抄録全体を表示PDF形式でダウンロード (376K) -
触媒の流動性について山口 隆章, 山本 二郎1963 年 6 巻 3 号 p. 197-205
発行日: 1963/03/25
公開日: 2009/01/30
ジャーナル フリーAlthough the particle size distributions and shapes of catalysts used in the fluid catalytic cracking process greatly affects the flow, catalysts with a wide range of particle size distribution are actually being used. Therefore, the authors have made studies on the characteristics of micro spherical catalyst particles in various particle size range as a start to determine the effects which particle size distributions and density changes bear upon the flow. These studies have indicated that;
(1) In the past it was very difficult to determine the coefficient to express the density and shapes in relation with the flow. However, it was possible to obtain a value to express the physical characteristics, through the formula for the pressure drop of the fixed bed.
(2) Catalysts now being used in the units were segregated into several groups in accordance with particle sizes, and it was discovered that the individual apparent bulk density will decrease as the particle size increases.
(3) The minute particles of catalysts have a tendency to abnormally expand to resemble channeling, and the course particles resemble slagging. However, by utilizing the expansion curves of the layers the relation of these tendencies were studied in respect to the particle size and types of catatlysts, and it was discovered that the particle size of 40 micron is the limit between channeling and abnormal expansion.抄録全体を表示PDF形式でダウンロード (546K)
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