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45 巻, 3 号
選択された号の論文の7件中1～7を表示しています
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吉田 尚1966 年 45 巻 3 号 p. 97
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (305K) -
堤 繁, 梁 孟宝, 沢 良彦1966 年 45 巻 3 号 p. 98-109
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーSince the metal carbonyl has been used as catalyst in the typical synthetic reactions such as Oxo and Reppe reactions, the relation between carbon monoxide and organo-metallic compounds has become deeper and deeper. In the near future, problems of the effective utilization of carbon monoxide will be solved by depending upon the organo-metallic compounds.
From the above point of view, the authors elucidate various reactions they have studied, e.g., synthesis of symmetric ketones by the reaction of CO with organo-Li compounds, reaction of CO with organo trans-metallic compounds, production of new complex, Li-alloyl metal carbonylate by the reaction of metal carbonyl with organo-Li, and the reaction of the latter with unsaturated compounds. These studies are still in the early stage and not being developed to the synthetic field. By combining CO with organometallic compounds, new synthetic reactions are very promising.抄録全体を表示PDF形式でダウンロード (3123K) -
北川 浩, 井上 篤1966 年 45 巻 3 号 p. 110-115
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーCarbon monoxide is by-produced in many chemical industries. Though it is not utilized efficiently, recently, some chemical products-butanol, acetic acid and so on have be being synthesized in Reppe process, in which high purity carbon monoxide is requested.
For this purpose, we have constructed the carbon monoxide separating plant, in which H2-CO mixed gas is cooled down to -200°C at26kg/cm2 for condensing carbon monoxide to separate from hydrogen. It is difficult to reach -200°C by using nitrogen refrigeration cycles, so we have designed a new hydrogen expansion engine to get the refrigeration at -200°C.
Hydrogen is separated by condensing carbon monoxide and is utilized for ammonia synthesis at the purity of higher than 97%. Condensed carbon monoxide which include methane is purified by rectification to 98% up, that is pure enough for Reppe process.抄録全体を表示PDF形式でダウンロード (950K) -
丸嶋 良夫, 西村 茂1966 年 45 巻 3 号 p. 116-126
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーHereunder is the gist of my thesis on the cause of error apt to occur while handling a gas calorimeter of Junkers' type, and on our knowledge on a set of calorimeter imported from West Germany as well as on the literature on calorimeters published in Japan and other countries.抄録全体を表示PDF形式でダウンロード (1819K) -
横川 親雄, 細川 健次, 武上 善信1966 年 45 巻 3 号 p. 127-132
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーIn order to elucidate the structural change of coke by pyrolysis various kinds of cokes, prepared at different temperatures (400 to 1, 000°C) from coals of various ranks (carbon content, 70 to 90%) were oxidized by potassium bichromate in concentrated phosphoric acid at 100 or 110°C. The rate of carbon dioxide evolution was measured and the oxidizability of cokes was compared. The general mode of change in oxidizability by pyrolysis was the same as that reported by A.B. Balfour et al, i.e. it reaches minimum at a temperature of 700 or 800°C. The oxidizability of coke becomes higher as the rank of the parent coal increases. In the cases of strongly agglutinating coals (Futago and Yubari) the oxidizability of coke fluctuates widely in the carbonization temperature range of 500 to 800°C. These fluctuations were diminished when these coals were carbonized after mixing with strongly coking coal. Although there was no direct relationship between oxidizability and mechanical strength (Drum index), it might be concluded that the change of the oxidizability during carbonization process has a fatal effect on the mechanical strength of the final coke.抄録全体を表示PDF形式でダウンロード (867K) -
橋本 治水, 鵜飼 士郎1966 年 45 巻 3 号 p. 133-143
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーWe have examined 7 specimens of Takashima Coal Mine Senseki, through Washerbility tests, measuring the degree of decrepitation, decrepitation removing tests, etc.
In general, we have found that the Takashima Senseki has such the principal properties in common with others, recognized by the previous investigators, as follows;
1. Unusual increase of ash contents are observed on most of the “Observed curve” of Senseki.
2. Natural (or primary) decrepitations of Senseki can be removed once at least, by the preheating treatments at about 400°C.
3. In many cases, however, considerable amounts of decrepitations are regenerated in couse of time, namely “Secondary decrepitation.”
4. Complete removals of decrepitations, including the secondary decrapitation, would not be expected unless the high temperature preheating adoped, such as 900°C or more.
Acknowleging the close relativity exists between the degree of carbonization and decrepitation as to Senseki, through the above tests and also study of the analytical data in this line, we would like to set forth our opinion on the theory of Senseki decrepitation.抄録全体を表示PDF形式でダウンロード (1680K) -
1966 年 45 巻 3 号 p. 150-152
発行日: 1966/03/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (409K)
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