1) modified Sharpless oxidation
改良Sharpless氧化
2) Sharpless asymmetric epoxidation reaction
Sharpless不对称环氧化
1.
Kinetic resolution of DL-1-tetradecen-3-ol utilizing Sharpless asymmetric epoxidation reaction in the presence of various D-(-)-tartrate ester, diethyl (DET), diisopropyl (DIPT), dicyclohexyl (DCHT), dicyclododecyl tartrate (DCDT) was investigated, thereby affording (S)-1-tetradecen-3-ol with 90% to >99% ee.
利用Sharpless不对称环氧化反应动力学拆分二级烯丙醇DL 1 十四烯 3 醇 ,研究了不同手性酒石酸酯催化剂 [酒石酸乙酯 (DET)、酒石酸异丙酯 (DIPT)、酒石酸环己酯 (DCHT)以及酒石酸环十二酯 (DCDT) ]对该反应的催化选择性 ,拆分所得的烯丙醇的光学纯度有一定差异 ,从 90 %到 99%ee 。
3) modified oxidation ditch
改良氧化沟
1.
The main causes why the total phosphorous concentration in the effluent is difficult to reach the standards(1mg/L)in the municipal wastewater treatment plant by modified oxidation ditch are analyzed.
分析了采用改良氧化沟工艺的城市污水处理厂出水总磷难以达标(1mg/L)的主要原因。
2.
Aimed at the problems such as chemical foam,septic floating sludge,denitrifying floating sludge and aged floating sludge occurred in a municipal wastewater treatment plant using the modified oxidation ditch for more than one year,the causes for mentioned problems were analyzed,and the solutions were given respectively.
针对采用改良氧化沟工艺的城市污水处理厂运行一年多来发生的化学泡沫、腐化浮泥、反硝化浮泥和老化漂泥等问题,分析了其各自产生的原因,并给出了解决方法。
3.
Anaerobic selection tank and modified oxidation ditch process are used in Western Wastewater Treatment Plant in Handan City.
邯郸市西污水处理厂采用厌氧选择池/改良氧化沟工艺处理城市污水,但由于实际进水水质与设计值有偏差,造成运行管理困难且费用较高。
4) Sharpless asymmetric epoxidation/cyclization
Sharpless不对称环氧化/环化
1.
The oxidation/Wittig olefination "one-pot" and the Sharpless asymmetric epoxidation/cyclization "one-pot" are adopted in this route of synthesis.
采用氧化/Wittig烯化一锅煮反应和Sharpless不对称环氧化/环化一锅煮反应,经八步反应,不对称合成出(S,R,R,R)-奈必洛尔的两个关键中间体1-[6-氟-(2S)-3,4-二氢-2H-2-苯并吡喃]-(1R)-1,2-乙二醇和1-[6-氟-(2R)-3,4-二氢-2H-2-苯并吡喃]-(1S)-1,2-乙二醇。
5) improved oxidation ditch
改良型氧化沟
1.
An improved oxidation ditch process for the treatment of bleaching/washing effluent in an alkaline straw pulping plant;
改良型氧化沟工艺处理碱法草浆中段废水
2.
Sludge bulking in improved oxidation ditch and controlling measures;
改良型氧化沟污泥膨胀的发生及控制措施
3.
An improved oxidation ditch process with the FAS-Jet aeration system for the treatment of papermaking wastewater
FAS—Jet曝气改良型氧化沟工艺处理造纸废水
6) modified oxidation ditch
改良型氧化沟
1.
Analysis of the removal of nitrogen and characteristic of operation parameters by modified oxidation ditch process
改良型氧化沟工艺脱氮效果及特性参数的分析
2.
By testing the flow pattern of modified oxidation ditch adopted by Western Wastewater Treatment Plant in Handan City,the velocity distribution rule in straight sections and curved sections of the oxidation ditch was gained.
通过对邯郸市西污水处理厂改良型氧化沟的流态进行测试,得出了氧化沟系统各直沟道和弯道处的流速分布规律;分析了该氧化沟系统内的积泥原因,提出了相应的改进措施和建议;在出水水质达标的前提下,可获得曝气转碟和水下推动器的最优组合方式,以期达到节省运行费用、降低能耗的目的。
3.
The effective measures are taken to tackle this problem,including adjusting the feed water quality,improving the biodegradability of sewage,changing the Carrousel oxidation ditch into a modified oxidation ditch,etc.
分析了平顶山市污水处理厂一期工程中总氮去除效率低下的原因,介绍了平顶山市污水处理厂去除总氮的有效措施,包括调整进水水质和改善进水可生化性能以及改进传统Carrousel型氧化沟工艺为改良型氧化沟工艺等措施。
补充资料：改良吸收法除氮氧化物
分子式：
CAS号：
性质：此法是在碱吸收法的基础上进行了改进。改良法是将硝酸尾气中的氮氧化物经过3个串联的吸收塔，被碳酸钠溶液吸收。吸收后的吸收液中含有亚硝酸钠和硝酸钠，分离出的亚硝酸钠母液用稀硝酸进行转化，全部氧化成硝酸钠，经蒸发、结晶、分离，制得硝酸钠产品。改进后的碱吸收法可提高氨的利用率3％，每吨硝酸的氨耗可降低5.2～9.2kg。尾气处理后氮氧化物排放浓度降至250×10-6～1000×10-6，吸收效率为90％～97％。
CAS号：
性质：此法是在碱吸收法的基础上进行了改进。改良法是将硝酸尾气中的氮氧化物经过3个串联的吸收塔，被碳酸钠溶液吸收。吸收后的吸收液中含有亚硝酸钠和硝酸钠，分离出的亚硝酸钠母液用稀硝酸进行转化，全部氧化成硝酸钠，经蒸发、结晶、分离，制得硝酸钠产品。改进后的碱吸收法可提高氨的利用率3％，每吨硝酸的氨耗可降低5.2～9.2kg。尾气处理后氮氧化物排放浓度降至250×10-6～1000×10-6，吸收效率为90％～97％。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条