{"title":"Pyrolysis Gas Chromatography of Low Hydrocarbon Compounds and Polyethylene","authors":"Toshio Abo, Teizo Watanabe","doi":"10.1246/NIKKASHI1898.74.5_885","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.5_885","url":null,"abstract":"低分子炭化水素の熱分解機構を明らかにする目的で,炭素数5から36までの直鎖飽和炭化水素を温度550~750℃で熱分解を行ない,熱分解ガスクロマトグラフィーによって分析した。熱分解がランダムな炭素鎖の切断によって起こるとして導かれた確率論の式と比較した結果,熱分解はランダムな分解が起こり,さらに二次反応として,いわゆる解重合反応が起こり,また,分子内水素転位反応が起こるものと推定された。また,ポリエチレソの熱分解もラソダムな分解であるが,600℃の低い熱分解温度では反応初期において生じたアルキルラジカルはまだガス化していないため,熱分解温度でガス化している低分子炭化水素の熱分解に較べて分子内水素転位反応が起こりやすいものと推定された。","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"18 1","pages":"885-888"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85087678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Adding Cations on the Oxidation and the Phase Transformation of Co-precipitated Magnetite","authors":"R. Furuichi, T. Ishii, F. Sato, Yasuhiro Masukawa","doi":"10.1246/NIKKASHI1898.74.8_1601","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.8_1601","url":null,"abstract":"","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"178 1","pages":"1601-1606"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74874942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Specific Surface Area and Pore Size Distribution of Spherical Active Carbon from Miike Coal","authors":"Hiroshi Kitagawa","doi":"10.1246/NIKKASHI1898.74.10_1981","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.10_1981","url":null,"abstract":"三池炭の水蒸気賦活を行ない比表面積, 細孔分布の変化を調べた。実験条件は炭化温度 350~1000℃, 賦活温度 800~1000℃, 賦活時間 1~16hr, 水蒸気量2.57g-H20/9-char・hrである。炭化温度 350, 600℃ のチャーを水蒸気賦活すると, 比表面積は重量減少率とともに増加し, 賦活温度 800~900℃では賦活温度による差はなかった。800~1000℃のチャーの場合, 同一重量減少率では低温で賦活した活性炭の方が比表面積が大きかった。チャーを塩酸洗浄して灰分を 1/2 以下に除去した後水蒸気賦活すると, 未処理炭を賦活した場合に較べて 200~350m2/g ほど比表面の大きな活性炭ができた。石炭を基準とする活性炭収率が同じ点で比表面積を比較してみると炭化温度による差はあまりないから, 熱経済の観点からすれぽ炭化温度は低い方が経済的である。チャーと水蒸気の反応は賦活温度が 900℃を超えると, 水蒸気の拡散が律速段階となり, 比表面積の大きな活性炭が得られないので, この温度域で活性炭を製造することは好ましくない。三池炭を原料とする活性炭は市販粒状活性炭に較べて, 半径 1000Å以上の細孔が著しく多い, などの結論を得た。","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"9 1","pages":"1981-1986"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73393448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chlorination of Vanadium Pentoxide","authors":"Y. Saeki, T. Ono, Ryoko Matsuzaki","doi":"10.1246/NIKKASHI1898.74.5_828","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.5_828","url":null,"abstract":"五酸化バナジウムの塩素化過程,および塩素化生成物におよぼす塩素化温度,炭素混合比および塩素ガス流量の影響などについて詳細に調べた。炭素質が存在しない場合,五酸化バナジウムと塩素ガスとの反応は約525℃ から開始し,オキシ三塩化バナジウムを生成する。炭素質が存在する場合,五酸化バナジウムと塩素ガスとの反応は約205℃ から開始する。この場合,塩素化生成物は塩素化温度および炭素混合比により影響をうけ,オキシ三塩化バナジウム,オキシ三塩化バナジウムと四塩化バナジウムの混合物,あるいは四塩化バナジウムが得られる。五酸化バナジウムにモル比で5倍量の炭素質を混合し,1000℃ で塩素化することにより四塩化バナジウムが製造できる。さらに,五酸化バナジウムの塩素化による四塩化バナジウムの生成について若干の考察を加えた。","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"47 1","pages":"828-831"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77413647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Carbon Tetrachloride on Polymerization by Metal Complexes of β-diketonates","authors":"K. Kaeriyama, Y. Yamazaki","doi":"10.1246/NIKKASHI1898.74.8_1718","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.8_1718","url":null,"abstract":"","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"1 1","pages":"1718-1719"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89779752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Copolymerization of Acrylonitrile with Quaternary Ammonium Salts Containing Allyl Group","authors":"I. Katsura, Takashi Yamamoto","doi":"10.1246/NIKKASHI1898.74.4_752","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.4_752","url":null,"abstract":"","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"12 4 1","pages":"752-755"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82627956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of the Polymerization Conditions of Vinyl Acetate in the Presence of Polyvinyl Alcohol as Emulsifier on the Properties of Polyvinyl. Acetate Emulsion","authors":"S. Hayashi, Toshihiko Matsus Hita, N. Hōjō","doi":"10.1246/NIKKASHI1898.74.6_1233","DOIUrl":"https://doi.org/10.1246/NIKKASHI1898.74.6_1233","url":null,"abstract":"ポリピニルアルコールを乳化剤とした酢酸ビニル乳化重合物の性質におよぼす製造どきのモノマーの滴下速度,開始剤の種類の影響を70℃以上の重合温度で調べた。過酸化水素レドックス系では,モノマーの滴下速度が遅いほど粒子は小さく,乳化重合物の粘度は高くなった。過硫酸アンモ論ウム系は,成分を重合の開始どきに全部仕込むバッチ方式では安定な乳化重合物が得られなかった。また,モノマーの滴下速度の遅い場合の結果を過酸化水素レドックス系と比較すると,粒子は大きく,乳化重合物の粘度は低下した。これらの結果は,フィルムの性質なども考慮して,ポリビニルアルコールへの酢酸ビニルのグラフト重合の度合によるものと結論した。","PeriodicalId":22880,"journal":{"name":"The Journal of the Society of Chemical Industry, Japan","volume":"74 1","pages":"1233-1236"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77372648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}