The paper introduced the method of determining the methanoic acid, ethanoic acid and propanoic acid in bio-diesels via ion chromatography.
文章建立了用离子色谱法测定生物柴油中的甲酸、乙酸、丙酸的方法。
Propanoic acid, 2-hydroxy-, butyl ester;
羟基丙酸丁酯；丁基-2-羟基丙酸酯；
Propanoic acid, 2-hydroxy-, monopotassium salt;
名称：2-羟基丙酸单钾盐； 乳酸钾；
Propanoic acid, ethenyl ester, homopolymer; poly(vinyl propionate);
丙酸乙烯基酯单的均聚物；
The results show that catalysts have higher activities, reaction time being short, higher conversion rate of propanoic acid.
结果表明：此法工艺简单，催化剂用量少，催化活性高，反应时间较短，正丙酸转化率高。
Thep-benzoquinone was oxidized to open the ring and formed other intermittent products such as butanol, butanone, propanoic acid and ethanediol.
对苯醌开环后，进一步被氧化，中间会生成丁醇、丁酮、丙醇、乙二醇等。
In this paper, seven synthesisizing processes of propanoic acid with ethylene were reviewed Advemtages and defects of each process were discussed.
在对丙酸合成中乙烯路线进行了综述后，提出了七条工艺路线，并讨论了各条路线的优缺点。
The effect of different factors, such as reaction time, the amount of catalyst and the ratio of iso-amyl alcohol to propanoic acid on the yield of iso-amyl propionate were carefully studied.
以二苯胺甲烷磺酸盐为催化剂，合成了丙酸异戊酯，考察了反应时间、催化剂用量、醇酸摩尔比等因素对酯化率的影响。
The effect of different factors, such as reaction time, the amount of catalyst and the ratio of iso-amyl alcohol to propanoic acid on the yield of iso-amyl propionate were carefully studied.
以二苯胺甲烷磺酸盐为催化剂，合成了丙酸异戊酯，考察了反应时间、催化剂用量、醇酸摩尔比等因素对酯化率的影响。
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