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Nippon Kagaku Kaishi最新文献

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Oxidation Treatment of Chelate Waste Water by Combined Electrolysis and Photocatalysis. 电解光催化联合氧化处理螯合废水。
Nippon Kagaku Kaishi Pub Date : 2002-01-01 DOI: 10.1246/NIKKASHI.2002.111
Y. Sano, Shigeo Kobayashi, T. Turu, M. Matsumoto, T. Nagaishi, S. Yoshinaga
{"title":"Oxidation Treatment of Chelate Waste Water by Combined Electrolysis and Photocatalysis.","authors":"Y. Sano, Shigeo Kobayashi, T. Turu, M. Matsumoto, T. Nagaishi, S. Yoshinaga","doi":"10.1246/NIKKASHI.2002.111","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2002.111","url":null,"abstract":"The wet oxidation treatment of catechol and ethylenediamine was carried out. The combination of electrolysis with photocatalysis method was adopted, for these compounds can complexate easily as ligand with heavy metals and it is very difficult to treat complex compounds formed. TOC measurement showed that the waste water contained catechol only was oxidized by the combination method more efficiently than by electrolysis, photocatalysis or the combination method of electrolysis with photolysis. The same result was obtained for the waste water of cathecol contained copper or cadmium, and that of ethylenediamine contained copper. It was suggested for the acceleration effect that the combination of electrolysis with photocatalysis method could produce new active oxidizer and increase the oxidation rate to promote the decomposition of the organic compounds.","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"169 1","pages":"111-114"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74875617","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}
引用次数: 1
Biodegradation Mechanism of the Superfine Fibers-Cement Composite. 超细纤维-水泥复合材料的生物降解机理。
Nippon Kagaku Kaishi Pub Date : 2002-01-01 DOI: 10.1246/NIKKASHI.2002.57
K. Shibano, S. Yoshizawa, Y. Ogawa
{"title":"Biodegradation Mechanism of the Superfine Fibers-Cement Composite.","authors":"K. Shibano, S. Yoshizawa, Y. Ogawa","doi":"10.1246/NIKKASHI.2002.57","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2002.57","url":null,"abstract":"天然繊維であるセルロースとコラーゲンをミクロン以下の単位まで解繊した超微細化繊維をセメントと混合することにより超微細化繊維-セメント複合体を作製し，その生分解性を調べた．この超微細化繊維-セメント複合体を土壌中に埋設すると，数か月間程度で複合体は砂状に崩壊した．土壌中に埋設した供試体は，土壌に接している部分より細菌やかびにより生崩壊が進行した．DTA-TG法により埋設前後の供試体中のカルシウム成分の分布を分析した結果，カルシウム成分は，供試体の中心部分から外側へと移動していることがわかった．この生崩壊は，次の過程によって進行していることが示唆された ; (1)細菌の代謝に伴って発生する二酸化炭素が，遊離しているカルシウムイオンと反応し，炭酸カルシウムとなる．(2)土壌に面している部分の遊離カルシウムの濃度が低下し，次第に内部にあったカルシウムが外側へと移動する．超微細化繊維は，微生物により分解され最終的には，水と二酸化炭素となると推察した．","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"48 1","pages":"57-61"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84763481","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}
引用次数: 0
Determination of Phthalic Esters in Atmospheric Environment and Environmental Water by GC/MS with Disk-format Solid Phase Extraction Method. 盘式固相萃取气相色谱/质谱法测定大气环境和环境水中邻苯二甲酸酯。
Nippon Kagaku Kaishi Pub Date : 2002-01-01 DOI: 10.1246/NIKKASHI.2002.85
H. Kitami, Tetsuo Watanabe, T. Kitahara, J. Takano
{"title":"Determination of Phthalic Esters in Atmospheric Environment and Environmental Water by GC/MS with Disk-format Solid Phase Extraction Method.","authors":"H. Kitami, Tetsuo Watanabe, T. Kitahara, J. Takano","doi":"10.1246/NIKKASHI.2002.85","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2002.85","url":null,"abstract":"","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"16 1","pages":"85-91"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90770295","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}
引用次数: 0
Coagulation-sedimentation Method Using Aluminum Sulfate and Calcium Hydroxide for Removal of Boric Acid from Wastewater. Improvement of Removal Rate of Boric Acid by Addition of Gypsum into Wastewater. 硫酸铝-氢氧化钙混凝沉淀法去除废水中的硼酸。在废水中添加石膏提高硼酸的去除率。
Nippon Kagaku Kaishi Pub Date : 2002-01-01 DOI: 10.1246/NIKKASHI.2002.265
S. Kudo, M. Sakata
{"title":"Coagulation-sedimentation Method Using Aluminum Sulfate and Calcium Hydroxide for Removal of Boric Acid from Wastewater. Improvement of Removal Rate of Boric Acid by Addition of Gypsum into Wastewater.","authors":"S. Kudo, M. Sakata","doi":"10.1246/NIKKASHI.2002.265","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2002.265","url":null,"abstract":"In this study, we investigated the change in the removal rate of boric acid relative to the saturation rate (=dissolved amount/saturated amount) for gypsum in solution and its pH dependence, as well as the composition of the compounds found in the precipitate after the reaction. The results showed that almost 100% of boric acid in solution is removed by the addition of gypsum at a saturation rate of >0.75 in the pH range of 10.5–13, which is probably due to the increase of the amount of ettringite formed in the precipitate. This makes it possible to thoroughly process boric acid-containing wastewater using the same amount of coagulants as in the conventional method.","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"5 1","pages":"265-268"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86172271","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}
引用次数: 6
非安定化型アゾメチンイリド—メタンイミニオアニリノ(メチルチオ)メチリド—の1,3-双極付加環化反応における配向選択性の理論的解析 非稳定型偶氮偶胺-甲基硫代甲基胺- 1,3-双极加成环化反应中定向选择性的理论分析
Nippon Kagaku Kaishi Pub Date : 2001-12-10 DOI: 10.1246/NIKKASHI.2001.677
乙彦 柘植, 泰三 八田, 朋子 大戸, 賢一 染川
{"title":"非安定化型アゾメチンイリド—メタンイミニオアニリノ(メチルチオ)メチリド—の1,3-双極付加環化反応における配向選択性の理論的解析","authors":"乙彦 柘植, 泰三 八田, 朋子 大戸, 賢一 染川","doi":"10.1246/NIKKASHI.2001.677","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.677","url":null,"abstract":"非安定型ジ置換アゾメチンイリド1aと不飽和化合物(2–4)との1,3-双極付加環化反応は，各々唯一の付加配向の生成物を与える．その配向選択性はフロンティア分子軌道(FMO)法では説明できず，遷移状態(TS)解析を行いその活性化エネルギーの差からはじめて説明できた．FMO法では1aの置換サイトと2–4の電子不足サイトとの結合による配向が示唆されるが，そのTSでは二つの反応点間距離は等しく，一方実験結果に一致する配向のTSでは二つの反応点間距離は大きく異なり，反応が段階的で，非置換サイトの関与する距離は1.9から2.1 A程度と短く，したがってより小さい活性化エネルギーとなったと判断される．この現象は，1aにおいてかさ高い2個の置換基がお互いに同一平面に存在しえない立体的な効果に帰因するものと思われる．すなわち1,3-双極子の置換基の立体障害がTSを非対称にし，反応を二段階的に変化させ，活性化エネルギーが低くなったと推定される．","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"1369 1","pages":"677-683"},"PeriodicalIF":0.0,"publicationDate":"2001-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85550346","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}
引用次数: 0
Hydrogen abstraction reaction of hydrogenated diamond surface in liquid phase by radical initiators used in polymer synthesis 高分子合成用自由基引发剂在液相中氢化金刚石表面的吸氢反应
Nippon Kagaku Kaishi Pub Date : 2001-12-01 DOI: 10.1246/NIKKASHI.2001.631
Toshiki Tsubota, Osamu Hirabayashi, S. Ida, S. Nagaoka, M. Nagata, Y. Matsumoto, K. Kusakabe, S. Morooka
{"title":"Hydrogen abstraction reaction of hydrogenated diamond surface in liquid phase by radical initiators used in polymer synthesis","authors":"Toshiki Tsubota, Osamu Hirabayashi, S. Ida, S. Nagaoka, M. Nagata, Y. Matsumoto, K. Kusakabe, S. Morooka","doi":"10.1246/NIKKASHI.2001.631","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.631","url":null,"abstract":"","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"60 1","pages":"631-636"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87158431","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}
引用次数: 1
石炭およびポリ塩化ビニルからのチャーの酸化銅(II)と炭酸カリウム水溶液による分解 煤和聚氯乙烯用彻的氧化铜(II)和碳酸钾水溶液分解
Nippon Kagaku Kaishi Pub Date : 2001-11-10 DOI: 10.1246/NIKKASHI.2001.653
文紀 秋山
{"title":"石炭およびポリ塩化ビニルからのチャーの酸化銅(II)と炭酸カリウム水溶液による分解","authors":"文紀 秋山","doi":"10.1246/NIKKASHI.2001.653","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.653","url":null,"abstract":"","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"5 1","pages":"653-656"},"PeriodicalIF":0.0,"publicationDate":"2001-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74224647","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}
引用次数: 0
1-(1-フェニルエトキシ)-2-ピリドンのβ-シクロデキストリンとの錯形成挙動に及ぼすメチル置換基効果 甲基取代基效应对1-(1-苯乙基)-2-吡啶酮与β-环糖嘌呤的错形成行为产生
Nippon Kagaku Kaishi Pub Date : 2001-11-10 DOI: 10.1246/NIKKASHI.2001.623
仁敬 秋田, 弘之 成瀬, 勘二 久保, 五十嵐 徹太郎, 忠光 櫻井
{"title":"1-(1-フェニルエトキシ)-2-ピリドンのβ-シクロデキストリンとの錯形成挙動に及ぼすメチル置換基効果","authors":"仁敬 秋田, 弘之 成瀬, 勘二 久保, 五十嵐 徹太郎, 忠光 櫻井","doi":"10.1246/NIKKASHI.2001.623","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.623","url":null,"abstract":"β-シクロデキストリン(β-CDx)とラセミ体の1-(1-フェニルエトキシ)-2-ピリドンおよびそのメチル誘導体から形成される1 : 1包接錯体のUV吸収スペクトル，円二色性スペクトルおよび1H-NMRスペクトルの解析から，包接錯体の構造と安定性ならびにβ-CDxの調べたゲストに対する不斉識別能に及ぼすメチル置換基効果が検討された．ゲスト分子内のフェニル部分は優先的にβ-CDx空洞内に取り込まれ，一方，ピリドン発色団は空洞内に入らずホスト分子の第二級ヒドロキシ基側の縁付近に残っていることが明らかにされた．さらに，ゲスト分子のピリドン環の6位に導入したメチル基は生成したβ-CDx包接錯体の安定性を増大させるようにその置換基効果を及ぼすことが示された．包接錯体の円二色性スペクトルの解析は，錯体の安定性とは対照的にその構造が事実上ピリドン環に導入したメチル置換基効果を受けないことを明らかにした．予想に反して，β-CDx空洞はラセミ体の1-(1-フェニルエトキシ)-2-ピリドンに対して乏しい不斉識別能しか示さず，また，この能力に及ぼすメチル置換基効果は小さいことがわかった．","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"17 1","pages":"623-629"},"PeriodicalIF":0.0,"publicationDate":"2001-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88687367","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}
引用次数: 0
銅(II)クロロフィリン三ナトリウム塩の水性二相抽出 铜(II)三氯乙烯三钠盐的水性二相提取
Nippon Kagaku Kaishi Pub Date : 2001-11-10 DOI: 10.1246/NIKKASHI.2001.649
Ahat Sali, 美文 赤間, 誠之 田中
{"title":"銅(II)クロロフィリン三ナトリウム塩の水性二相抽出","authors":"Ahat Sali, 美文 赤間, 誠之 田中","doi":"10.1246/NIKKASHI.2001.649","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.649","url":null,"abstract":"Aqueous two-phase system formed by mixing (NH4)2SO4 and tetrabutylammonium bromide (TBAB) has been applied to the gentle separation of trisodium salt of copper (II) chlorophyllin (CuCL–Na). An aqueous two-phase system was obtained as follows: to a 3.0 mL of 1.0 mol/L TBAB aqueous solution, 1.0 mL of CuCL–Na aqueous solution containing less than 0.30 mg of CuCL–Na, 1.0 mL of pH 8 buffer solution and 1.1 g of (NH4)2SO4 were added and the mixture was shaken for 1 min, then left at room temperature for 3 h. A 0.5 mL portion of the top phase was diluted to 10 mL with water and its absorbance was then measured at 405 nm against a reagent blank similarly prepared. The CuCL–Na can be quantitatively extracted into the TBAB-rich upper phase at the wide pH range. It was considered that the extractable species was an ion pair complex of the type CuCL–TBA.","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"9 1","pages":"649-652"},"PeriodicalIF":0.0,"publicationDate":"2001-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82747458","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}
引用次数: 1
Selective Formation of Phosphonium Ylide or Iminophosphorane by Electroreduction of Alkylaminophosphonium Salt. 烷基氨基膦盐电还原选择性生成酰化磷或亚磷酸。
Nippon Kagaku Kaishi Pub Date : 2001-10-10 DOI: 10.1246/NIKKASHI.2001.573
K. Makita, K. Kuroyanagi, F. Ando, J. Koketsu
{"title":"Selective Formation of Phosphonium Ylide or Iminophosphorane by Electroreduction of Alkylaminophosphonium Salt.","authors":"K. Makita, K. Kuroyanagi, F. Ando, J. Koketsu","doi":"10.1246/NIKKASHI.2001.573","DOIUrl":"https://doi.org/10.1246/NIKKASHI.2001.573","url":null,"abstract":"簡便でかつアジドやリンのジハロ誘導体を用いることなく安全にイミノホスホランを合成する目的で，アルキルアミノホスホニウム塩の電解還元を行った．等モルの電気量を通電することにより一電子還元が起こり，α位の水素ラジカルが引き抜かれ，リンイリドおよびイミノホスホランが生成することを見いだした．この系にアルデヒドを共存させて得られる反応生成物を単離，同定した．アルキル置換基が電子供給基であるMe基ではイミノホスホランが定量的に得られた．一方，電子求引基を有するアルキル置換基の場合は，定量的にイリドのみを与えた．ベンジル基を有するホスホニウムイオンではWittig反応とAza-Wittig反応の両経路が進行し，相当する混合物を与えた．","PeriodicalId":19311,"journal":{"name":"Nippon Kagaku Kaishi","volume":"51 1","pages":"573-579"},"PeriodicalIF":0.0,"publicationDate":"2001-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78046620","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}
引用次数: 0
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