助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[8]条 当前为第1条到8条
 

相关语句
未完全匹配句对
    When the wastewater has a sulfur concetra-tion of 100-400mg/L,and is treated in a 101. reactor at pH 9 10, with an air flow of 0. 1m3/h and a catalyst dose of 100 -150mg/L for 4 hours, the removal of sulfur from wastewaster reaches 94 % - 98 %.
    在所研究的浓度100—400mg/L范围内,使用的反应器为10L. 控制气量0.1m~3/h,曝气时间4h,催化剂加量100—150mg/L,pH值9—10时,硫化物去除率达94%—98%。
    A 87.5% yield of p -chloromethyl styrene was obtained when the reaction was carried out under conditions in which the reactant ratio (Styrene∶Polymerized formaldehyde∶Hydrochloric acid∶Phosphorus trichloride) was 1.0∶ 2.0 ∶1.0∶0.3(mol), catalyst dose was 5.0 g/mol styrene, reaction temperature 65 ℃, reaction time 2 hours.
    实验结果表明 :在苯乙烯氯甲基化反应中 ,投料物质的量比为n(苯乙烯 )∶n(聚甲醛 )∶n(HCl)∶n(PCl3) =1.0∶2 .0∶1.0∶0 .3 ,每摩尔苯乙烯中催化剂的用量为 5 .0g,反应温度为 6 5℃ ,反应时间为 2h的条件下 ; 对 -氯甲基苯乙烯产率为 87.5 % ;
    The results showed that the reaction at 110 ~ 160 ℃ for 2 h,molar ratio of phydroxybenzoic acid to pentanol was 3∶1,the catalyst dose 1.5 g,the yield of esterification reached 93.3%? 
    结果表明:反应的酸醇比为1∶3,催化剂用量1.5g,反应温度110~160℃,反应2h,酯产率可达93.3%。
    The synthesis of N, N′-bi(2,2,6,6-tetramethyl-4-piperidyl)hexanediamine from 2,2,6,6-tetramethyl-4-piperidone and 1,6-hexanediamine was studied. The effects of catalyst dose, reaction temperature, reaction period and solvent for this reaction were optimized. The reaction conditions were established as follows: catalyst dose, 20% of imine in mass;
    研究了2,2,6,6 四甲基4 哌啶酮与1,6 己二胺两步法常压合成N, N′双(2,2,6,6 四甲基4 哌啶基)己二胺的方法,并考察了催化剂用量、反应温度、反应时间及溶剂对反应的影响,确定了最佳反应条件。
    (2) Catalysts dose have an optimum value for different compounds and reactivesystem.
    (2)催化剂TiO_2的投入量有一个最佳值,这个最佳值针对不同的化合物和反应体系有所不同。
    Reuslt indicated that the optimum gas feed rate was 600mL/min, optimum catalyst dose was 5g/L, optimum system temperature was 25℃.
    催化剂用量最佳值为5g/L;
    The lower oxidation peak potential indicates that the PtRu/SWCNTS catalyst makes the methanol oxidated more easily than theJohnson-Matthey PtRu/C catalyst dose. At lower operation temperature, the PtRu/SWCNTs catalyst has the lower oxidation peak current than Johnson-Matthey PtRu/C catalyst. As the operation temperature raised higher than 70°C, the oxidation peak current of PtRu/SWCNTs catalyst is higher than tne industrializd PtRu/C catalyst.
    所制备PtRu/SWCNTs催化剂与商业化Johnson-MattheyPtRu/C催化剂相比,低温条件下峰值氧化电流较低,在工作温度超过70℃时,其峰值氧化电流大于商品催化剂。
    it is found that the optimizod condition for catalyst dyeing is established when the catalyst dose is 0.02g/l and pH is about 8.Under this condition, the colour yield of dye is considerably enhanced and favourable wet fastness is obtained, indicating that the catalystic dyeing of silk fabrics deserves further investigation.
    结果发现,崔比染色的最佳条件是三乙烯二胺用量为0.02g/L,pH为8左右。 在此条件下,一氯三嗪等高温型活性染料的得色量显著提高,湿坚牢度良好,从而表明催化染色值得研究。
 

首页上一页1下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社