著者

小林純一構成・作詞 西崎嘉太郎作曲・編曲

出版者

カワイ楽譜

巻号頁・発行日

1971

著者

山内 基一 島崎 真一 小林 純一 下司 昌一 渡辺 三枝子 橋本 幸晴

出版者

一般社団法人 日本教育心理学会

雑誌

日本教育心理学会総会発表論文集 第17回総会発表論文集 (ISSN:21895538)

巻号頁・発行日

pp.376-377, 1975-08-10 (Released:2017-03-30)

著者

井関 隆士 小林 純一 高橋 純一

出版者

一般社団法人 資源・素材学会

雑誌

Journal of MMIJ (ISSN:18816118)

巻号頁・発行日

vol.138, no.8, pp.129-133, 2022-08-31 (Released:2022-08-25)

参考文献数

14

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As pyrometallurgical technologies to smelt nickel metal from the oxide ore, melting reduction process using an electric furnace (Elkem) and semi-melting reduction process using a rotary kiln (Krupp-Renn) with a saprolite ore as a raw material have been established and operated commercially. However, in the future, it is expected that it will be difficult to smelt nickel from the oxide ore because of the decline of nickel grade in the ore and it is necessary to develop a new process adaptable to lower grade ore and difficult processing ore.The authors have conducted fundamental research on the pyrometallurgical reaction of low grade and difficult processing nickel oxide ore smelting by the rotary hearth furnace (RHF). Liquefied gas burner will be supposed from points of cost, reduction of global warming gas and so on in the operation of Ni smelting. On the other hand, it is getting clearer that Fe and Ni metallization degree in liquefied gas burning atmosphere are lower than those in N2 atmosphere. The reason have been guessed effects of H2O generating in liquefied gas combustion. The results about effects of H2O to reduction reaction of low Nickel grade oxide ore is described in this report.

著者

小林純一 著

出版者

桜井書店

巻号頁・発行日

1948

著者

石井 永 石川 勉 小林 純一 関 宏子

出版者

天然有機化合物討論会

雑誌

天然有機化合物討論会講演要旨集

巻号頁・発行日

no.34, pp.518-525, 1992-09-10

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Toddacoumalone (4) and toddacoumaquinone (5), isolated from Toddalia asiatica (L.) Lam. (T. aculeata Pers.) (Rutaceae), were established to be novel unique mixed dimers based on a coumarin by spectroscopic means mainly 2D-NMR. Toddacoumalone (4), C_<31>H_<31>NO_6, was isolated as colorless prisms, mp 202-204℃ (AcOEt), in a racemic form. Its IR, UV, and NMR (Table 1) spectra including the COLOC experiment based on three bond correlations (Table 2) indicated the presence of a 8-substituted 5, 7-dimethoxycoumarin like 6 and an N-methyl-2-quinolone like 7 in 4. A monoterpene bridge of CH=CHC(Me)CH_2CHCH=CMe_2 with cis arrangement between the two vinyl groups was interposed between the coumarin and the quinolone units. Though lack of coupling between the conjugated olefinic protons gave us no clue to the geometry, an E geometry for the double bond could be deduced by appearance of conjugated (E)-olefinic protons in toddalenol (12) as a 2H singlet and coexistence of toddasin (13) in the same plant. Connection of the C_<10> unit to the coumarin and the quinolone systems resulted in drawing the structure of 4 for toddacoumalone. Toddacoumaquinone (5), C_<23>H_<18>O_7, was isolated as orange prisms, mp 278-281℃ (AcOEt). The same 8-substituted 5, 7-dimethoxycoumarin moiety was also found to be in 5. In this case presence of an 8-substituted 2-methoxy-6-methyl-p-naphthoquinone system was reasonably deduced by spectral data. Thus, toddacoumaquinone should be a biaryl compound consisting of a coumarin and a naphthoquinone, the structure of which could be depicted as 5. Both the dimers would be synthesized in a plant body through Diels-Alder type cycloaddition reaction. The synthetic works based on this biogenetic consideration are now in progress.