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- Isoamyl hexanoate could be synthesized using stannic chloride from caproic acid and isoamyl alcohol. 研究了用四氯化錫催化己酸和異戊醇合成己酸異戊酯的反應。
- With eerie sulfate as the catalyst, propionic acid and isoamyl alcohol were reacted to form isoamyl propionate. 采用硫酸鈰為催化劑合成丙酸異戊酯,考察了催化劑用量、醇酸摩爾比、反應時(shí)間及催化劑重復使用次數等對收率的影響。
- Using the phosphotungstic acid immobilized on active carbon as catalyst, the iso-amyl gallate was synthesized directly by esterifying isoamyl alcohol and gallic acid. 摘要以活性炭固載磷鎢酸作為催化劑，用沒(méi)食子酸與異戊醇直接酯化合成了沒(méi)食子酸異戊酯。
- The addition of cyclohexanone and isoamyl alcohol in cold sealing solution could improve sealing quality of anodic film is repoxted. 研究了在封閉液中添加環(huán)己酮和異戊醇等有機溶劑，以提高鋁及其合金陽(yáng)極氧化膜常溫封閉質(zhì)量的方法。
- Isoamyl betyrate was synthesized from isobutyric acid and isoamyl alcohol using ammonium ferric sulfate as a catalyst in the yield of 96.5%. 以十二水合硫酸鐵銨為催化劑,由丁酸和異戊醇合成了丁酸異戊酯,優(yōu)化了酯化條件。
- The synthesis of isoamyl acetate from acetic acid and isoamyl alcohol on a series of solid superacids catalysts containing vare earth elements was studied. 制備出一系列稀土固體超強酸催化劑,用于催化以乙酸和異戊醇為原料合成乙酸異戊酯的反應。
- The diisoamyl glutarate in catalysis of silicotungsticacid was preparated by esterification of isoamyl alcohol and glutaric anhydride seperated from dicarboxylic acid. 用硅鎢雜多酸為催化劑,以從二羧酸中分離出的戊二酸酐和異戊醇為原料合成了戊二酸二異戊酯。
- The extractive agent will effectively increase the relative voatility between active amyl alcohol and isoamyl alcohol, and is easy to be recovered bo isoamyl alchohol. 該萃取劑能有效增加原溶液中組份的相對揮發(fā)度，且回收容易。
- The effects of cyclohexanone and isoamyl alcohol on life of sealing solution and on inhibition of sealing flower, and the adding amount of organic solvent are also discussed. 探討了環(huán)己酮和異戊醇對封閉液壽命的影響和對粉霜的抑制作用以及有機溶劑的添加量等問(wèn)題。
- Isoamyl butyrate was prepared by using copper benzenesulfonate as catalyst and cyclohexane as azeotropic water-carrying agent in the esterification of isoamyl alcohol with butyric acid. 以苯磺酸銅作催化劑,環(huán)己烷作共沸帶水劑,由正丁酸和異戊醇制備丁酸異戊酯。
- The yield of the ester could reach 82.3% under amount of substance ratio of benzoic acid, isoamyl alcohol and ammonium ferric sulfate were 1:4:0.17, refluxing and water segrating for 4h. 當苯甲酸、異戊醇和硫酸鐵銨的物質(zhì)量比為 1:4:0 .;17;回流分水 4h;酯收率達 82
- The effects of microwave irradiation power, reaction time, molar ratio of isoamyl alcohol to n-butyric acid and the use level of catalyst on esterification reaction were investigated. 探討微波輻射功率、輻射時(shí)間、醇酸摩爾比以及催化劑用量等因素對酯化反應的影響。
- Isoamyl betyrate was synthesized from isobutyric acid and isoamyl alcohol using ammonium ferric sulfate as a catalyst in the yield of 96.5%. The reaction conditions were advantageous and succinct. 以十二水合硫酸鐵銨為催化劑;由丁酸和異戊醇合成了丁酸異戊酯;優(yōu)化了酯化條件。實(shí)驗結果表明;催化劑的催化活性高;反應條件溫和;易于操作;方法簡(jiǎn)便;酯化率可達96.;5%25。
- The disease is still in its primary stage. 這疾病仍然在初發(fā)階段。
- The little boy left primary school at eleven. 這個(gè)小男孩十一歲時(shí)小學(xué)畢業(yè)。
- Sure. We are friends since primary school. 當然，我們從小學(xué)就是朋友了。
- Keywords sodium bisulfate;oxalic acid;isoamyl alcohol;diisopentyl oxalate; 硫酸氫鈉;草酸;異戊醇;草酸二異戊酯;
- I started primary school when I was 5 years old. 我五歲時(shí)開(kāi)始讀小學(xué)。
- A primary cause of Tom's failure is his laziness. 懶惰是湯姆失敗的主要原因之一。
- Primary school teachers use a lot of visual aids. 小學(xué)教師使用大量的視覺(jué)教具。
