巻号一覧
19 巻, 5 号
選択された号の論文の8件中1～8を表示しています
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諸江 辰男, 服部 達彦1961 年 19 巻 5 号 p. 361-372
発行日: 1961/05/01
公開日: 2010/10/20
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杉山 登, 井上 伍郎1961 年 19 巻 5 号 p. 373-383
発行日: 1961/05/01
公開日: 2010/10/20
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680mm反応炉によるホルムアルデヒドの工業的製造山内 三郎1961 年 19 巻 5 号 p. 384-389
発行日: 1961/05/01
公開日: 2010/10/20
ジャーナル フリーIndustrial manufacturing experiments of formalin by use of a reaction tube having diameter 680mm with a standard capacity of formalin 10t/day (37% HCHO containing 10% CH3OH) have been carried out. An initial reaction was started by heating with a small electric heater (3kw) in the reaction vessel, heating for 2 hours was sufficient for reaction starting of the whole catalyst when the catalsyt was activated sufficiently, and it was confirmed that this method has enough merit for practical application in starting the reaction of industrial scale. The state of reaction was very good, that is, in the manufacturing formalin 10t/day, the reaction rate was around 60% at the theoretical yield of 95% and in the raction rate of 70-75%, the theoretical yield of 93-94% was obtained. The maximum production of 22t/day was obtained with the reaction rate of 69% and the theoretical yield of 93%, The spray-cooling effect, a characteristic of this manufacturing method, has been investigated. The theoretical yield and the space time yield were increased, and the space time yield was increased 8 folds under the same theoretical yield. This manufacturing system using the spray-cooling method is a new formalin manufacturing method of using of reaction tube having large diameter, it is entirely different from that of I. G. method and its value for practical application is confirmed.抄録全体を表示PDF形式でダウンロード (1137K) -
水混合メタノールを原料とするホルムアルデヒドの製造山内 三郎1961 年 19 巻 5 号 p. 389-394
発行日: 1961/05/01
公開日: 2010/10/20
ジャーナル フリーA method of manufacturing of formaldehyde by use of methanol mixed with water as the raw material has been investigated. The water-methanol mixture, H2O/CH3OH=45/55 by weight, was tested at first and found out that the reaction was proceeded without the danger of explosion by use of air/CH3OH=1.58l/g with the reaction rate of 95.4% and the theoretical yield of 87.7% Theseresults showed good agreement with the operating data of I. G. Company. Studies have been made on the manufacturing of 37% formalin from use of such methanol of high water content and it was found that a suitable ratio of H2O/CH3OH was around 40/60. For examle, using of H2O/CH3OH=38/62 and air/CH3OH=1.16l/g or above was found to be possible for manufacturing of 37% formalin containing 10% methanol without distillation. In this case, there was no danger of explosion by taking air/CH3OH=1.81l/g and 100% reaction rate was obtainable.
Summaries of experimental results on air/CH3OH ratio were as follows: Reaction rate and the rate of formation of CO2 were influenced on the whole system throughout by the change of air/CH3OH ratio and its increase was accompanied by their increase, The ratios of formation of formaldehyde produced by the dehydrogenation reaction and that produced by the oxidation reaction were somewhat different from that figured out by use of equilibrium calculation and it was clarified that the change took place by showing the maximum and the minimum value at around air/CH3OH=1.0l/g.抄録全体を表示PDF形式でダウンロード (942K) -
鈴木 正臣1961 年 19 巻 5 号 p. 395-402
発行日: 1961/05/01
公開日: 2010/10/20
ジャーナル フリーLaboratory synthesis of surface-active agent, EGDE, (Ethylene glycol mono docosyl ether) an evaporation depres sant, was described in the first report. This report deals with a simple and economic synthetic method of EGDE starting from rapeseed oil. The EGDE showed surface tension of 40dyne/cm at room temperature without addition of any external mechanical operation. It showed 70-80% suppression of evaporation under usual condition and the maximum suppression was above 90%. This is much higher than heretofore known evaporation suppressing agents, such as cetanol (with the maximum suppression 30-35%) and octadecanol. Using of EGDE was effective not only for suppression of evaporation but it was accompanied with an increase of temperature of water and it is effective for improving of thermal conditions in agriculture and horticulture.抄録全体を表示PDF形式でダウンロード (1273K) -
ニトロ安息香酸無水物類によるメラミンのアシル化大島 好文, 北島 英彦1961 年 19 巻 5 号 p. 403-408
発行日: 1961/05/01
公開日: 2010/10/20
ジャーナル フリーDiacetylmelamine and o-(or m- or p-) nitrobenzoic anhydride (NBA) in the molar ratio of 1: 2 are reacted by fusion at around 200°C to obtain mono-o-onitrobenzoyl-diacetylmelamine (1) or corresponding m-isomer (2) and p-isomer (3). A partial saponification of (1), (2), and (3) with 5% aqueous solution of sodium hydroxide yielded mono-o-nitrobenzoylmelamine (4), and corresponding m-(5) and p-isomer (6), respectively. These mono-substituted products are also obtainable by boiling melamine (M) in dioxane and o-(or m- or p-) NBA in the molar ratio of 1: 2. Reaction of (4) and o-NBA, (5) and m-NBA, and (6) and p-NBA in dioxane yielded di-o-nitrobenzoylmelamine (7), and corresponding m-iosmer (8), and p-isomer (9). Reaction by fusion of M and o-NBA at around 160°C M and m- and p-NBA at around 200°C in their molar ratio of 1: 4.5 yielded tri-o-nitrobenzoylmelamine 10), and corresponding misomer 11), and p-isomer (12). The products (1)-(12) are new compounds.抄録全体を表示PDF形式でダウンロード (1086K) -
北原 新哉1961 年 19 巻 5 号 p. 409-415
発行日: 1961/05/01
公開日: 2010/10/20
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芳香族類の需給を中心として丹治 正平1961 年 19 巻 5 号 p. 416-421
発行日: 1961/05/01
公開日: 2010/10/20
ジャーナル フリーPDF形式でダウンロード (1119K)
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