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- Sodium bisulfate is an excellent catalyst for synthesizing butanone 1,2-propan. 以一水合硫酸氢钠为多相催化剂,由丁酮和1,2-丙二醇反应合成了丁酮1,2-丙二醇缩酮。
- Catalytic activity of phosphotungstic acid on synthesizing butanone 1,2-propanediol ketal was discussed,the factors influencing the synthesis were discussed and the best conditions were found out. 探讨了磷钨酸对丁酮1,2丙二醇缩酮合成反应的催化活性,研究了酮醇摩尔比、催化剂用量、反应时间等因素对产品收率的影响。
- Catalytic Synthesis of Butanone 1,2-Propanediol Ketal by H_3PW_(12)O_(40)/TiO_2 二氧化钛负载磷钨杂多酸催化合成1,2-丙二醇缩丁酮
- Keywords butanone 1;2-propanediol ketal;sodium bisulfate;catalysis;katalation; 丁酮1;2-丙二醇缩酮;硫酸氢钠;催化;缩酮反应;
- Keywords butanone 1;2-propanediol ketal;phosphotungstic acid;catalysis;ketalation; 关键词1;2-丙二醇缩丁酮;磷钨酸;催化;缩酮反应;
- Keywords Butanone 1;2-propanediol ketal;Phosphotungstic acid catalyst supported on active carbon;Catalytic synthesis; 丁酮1;2-丙二醇缩酮;活性炭负载磷钨酸;催化合成;
- This city has a population of more than 1,000,000. 这个城市人口超过一百万。
- These socks retail at 1 dollar a pair. 这些袜子零卖一美圆一双。
- This mountain is 1,400 meters above sea level. 这座山海拔1,400米。
- These socks are going at 1 a pair. 这些短袜每双卖1英镑。
- The ratios of 1 to 5 and 20 to 100 are the same. 1与5之比和20与100之比相同。
- The thieves stole 1 million worth of jewellery. 窃贼偷走了价值100万英镑的珠宝。
- The winning time was 1 minute 5 seconds. 获胜的时间是1分零5秒。
- A unit of power equal to 1,000 watts. 千瓦功率的单位，等于1,000瓦。
- Talking of salary you will be paid$1,000 a month. 说到薪水，你一个月1000美元。
- I was able to knock their price down to $1. 我把价格压到一美元。
- Our mail orders are now running at$1,200 a week. 我们现在邮购业务是每周期1,200美元。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- Their expenses reached a total of 1,000 pounds. 他们的花费总计一千英镑。
- You're allowed 1 litres of spirits duty-free. 你可免税带进1升烈性酒。
