Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
Search
Advanced search
OR
Browse
Search
Volume 35, Issue 7
Displaying 1-15 of 15 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • [title in Japanese]
    [in Japanese]
    1956 Volume 35 Issue 7 Pages 387
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_387
    JOURNAL FREE ACCESS
    Download PDF (213K)
  • More Profit by the New System of Dewatering of Fine Coal at Colliery
    Chiuji Nakahara
    1956 Volume 35 Issue 7 Pages 388-394
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_388
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    are many pending questions in coal washery, for example, of dewatering of fine coal, of removing of small particles (dust coal) from fine coal, of preventing so-called river coal discharging from coal washery. As a resull of imperfect. dewatering, dumping from coal wagon in winter is suffered from freezing on its way to port from coal mine, and the watery coal is unfavourable on business by reduction in price because of over water. This article describes as a solution for above questions by means of using the new system-four grades jet sieving system-of dewatering of fine coal, and illustrates in detail about the new system, and recommends it as a more reasonable system. This article studies the prevailing system-en block concentration system-of dewatering of fine coal, which is now used under washeries to separate the fine coal from a liquid-particle mixture, at the same time, explains the reason why water adheres to hydrophobic coal, and then suggests to displace the common system by the new system.
    If the new system is used alternatively, the foregoing hard questions are desolved. and therefore it contributes well to management of coal mine.
    View full abstract
    Download PDF (1271K)
  • Synthesis of Aromatic Vinyl Compounds
    Shigeru Tsutsumi, Kenji Sato, Wazaburo Kawai
    1956 Volume 35 Issue 7 Pages 395-398
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_395
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Previously we have studied on the preparation of terephtalic acid by the oxidation of p-cymene and p-sec-butyltoiuene and obtained acetophenone derivates as the by-products. The compounds obtained were p-methyl-acetophenone, p-isopropylacetophenone and p-diacetylbenzene. These compounds may be converted to the corresponding vinyl compounds by the hydrogenation, being followed by dehydration.
    p-Alkylacetophenone, such as p-methyl-, p-ethyl-, p-isopropyl-and p-sec-butyl-acetophenones were synthesized by the method described in Organic Synthesis. These compounds were then hydrogenated with copper-chromite catalyst at 130-465°C and under an initial hydrogen pressure of 100 atm, the hydrogenation being completed after two hours.
    The dehydration of fhe carbinol compounds obtained was carried out by the two methods, the one by the use of alumina, the other by potassium bisulfate. In the case of alumina, the temperature used was 300°C and the pressure 30-100mmHg, whereas in the case of potassium bisulfate, the temperature 180-210°C and pressure 100mmHg.
    The yields of p-alkylstyrene were 67-91%.
    The chemical structure of the p-alkystyrene was confirmed by the use of infra-red spectrum.
    View full abstract
    Download PDF (527K)
  • Spectroscopic Study of Wall Effect of Combustion Chamber on the Oxidation of Hydrocarbons at Low Temperature (III)
    Michika Miyanishi
    1956 Volume 35 Issue 7 Pages 399-404
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_399
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    was previously found by us that microcrystals belonging to the hexagonal crystal system played a role of catalytic action in the oxidation of normal hydra carbons at low temperature. The formaldehyde produced in the oxidation was detected. by spectroscopic observation. By this catalytic action the mechanism of the oxidation, the anti-knocking effect of tetraethyl lead, the method of knocking prevention in combustion engines and the microcrystal nature of glass surface were studied. The results obtained were announced in the previous reports (I) and (II).
    The microcrystal nature of mica and porcelain were also examined by the catalytic action. The nature was observed remarkably in the case of glass, while it was not so in the cases of mica and porcelain. The electrical conductivity due to the adsorption of water vapour was also studied for body surfaces of these materials. In the case of glass the conductivity was especially large as compared with that in the remaining cases. This was explained by the conduction with ions produced in chemically adsorbed water, for the chemical adsorption was considered to rise on the glass surface having the nature of hexagonal microcrystal.
    The effects given when the combustion chambers were coated with copper or tin had already been examined by a technian, Miyazaki. The results obtained by him are also described in this report.
    View full abstract
    Download PDF (1280K)
  • Study of the Slight Decomposition of Lignite by Dilute NitricAcid(I)
    The Best Condition for Obtaining the Nitro Humic Acids and the Similar Compounds.
    KOZO Higuchi, Takuzo Arai, Michio Tsuyuguchi, Kazuo Asakawa
    1956 Volume 35 Issue 7 Pages 404-410
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_404
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    For the purpose of obtaining the so-called nitro humic acids and the similar compounds, the best condition of the reaction of lignite and dilute nitric acid. was studied from the yield of the nitro humic acids and the similar compounds, the residual quantity of the nitric acid after the reaction, the yields of the valuable byproduct and etc. The condition that 110 parts lignite (dry, ash-free base) 80°C was found the best. At this condition 84 parts of water insoluble organic solid product which contained 92% diluted alkali
    View full abstract
    Download PDF (1236K)
  • Locative Change of Characteristics of Coke in the Chamber of Coke Oven
    Hiroshi Joh, Shiro Ida
    1956 Volume 35 Issue 7 Pages 411-427
    Published: July 20, 1956
    Released on J-STAGE: October 21, 2011
    DOIhttps://doi.org/10.3775/jie.35.7_411
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    characteristics of coke produced in coke oven are undoubtedlyinfluenced by the kind, quality, size of the raw coal besides heating condition of cokeoven, etc.
    Whenever coke is manufactured in coke oven under the almost same state in point ofthese factors, it is presumed that characteristics of coke will change according to itslocation in the chamber of coke oven.
    As any systematic investigations on the subject, however, seem not to have made sofar yet, the present authors took up this problem.
    As the result of experiments conducted fundamentally, as well as practically, it isascertained that of the two fundamental elements obvoiusly influencing the characteristicsof coke in this case, i. e. the bulk density of coal charge and the temperaturedistribution in the coke chamber, the former has to have more powerful influence uponthe quality of coke rather than the latter.
    View full abstract
    Download PDF (2793K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 428-434
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_428
    JOURNAL FREE ACCESS
    Download PDF (690K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 435
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_435
    JOURNAL FREE ACCESS
    Download PDF (174K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 436-437
    Published: July 20, 1956
    Released on J-STAGE: May 16, 2013
    DOIhttps://doi.org/10.3775/jie.35.7_436
    JOURNAL FREE ACCESS
    Download PDF (356K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 437-438
    Published: July 20, 1956
    Released on J-STAGE: May 16, 2013
    DOIhttps://doi.org/10.3775/jie.35.7_437
    JOURNAL FREE ACCESS
    Download PDF (358K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 438-439
    Published: July 20, 1956
    Released on J-STAGE: May 16, 2013
    DOIhttps://doi.org/10.3775/jie.35.7_438
    JOURNAL FREE ACCESS
    Download PDF (321K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 439-440
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_439
    JOURNAL FREE ACCESS
    Download PDF (273K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 441
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_441
    JOURNAL FREE ACCESS
    Download PDF (128K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 442-443
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_442
    JOURNAL FREE ACCESS
    Download PDF (317K)
  • [title in Japanese]
    1956 Volume 35 Issue 7 Pages 443
    Published: July 20, 1956
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.3775/jie.35.7_443
    JOURNAL FREE ACCESS
    Download PDF (166K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top