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- Another process modification is the use of solvent processing. 工艺的另一改革是采用溶剂工艺过程。
- The present paper is directed to the preparation of chlorpyrifos by means of a process which employs a two solvent system,in which the influence of various factors on the yield was investigated. 本文报道了采用双溶剂法合成毒死蜱,研究了各种反应条件对收率的影响。
- This paper proposes a new mode of batch extractive distillation with two stills and two solvent inlets. 摘要提出了带有塔底回收釜及双溶剂进口的间歇萃取精馏操作方式。
- Preparation of formamidine sulphinic acid with thiourea and hydrogen peroxide by aqueous solvent process was researched. 研究了硫脲与双氧水水溶剂法制备甲脒亚磺酸的反应。
- The di solvent process for lube oil refining has been researched by taking furfural as the main solvent and light hydrocarbon as the second solvent. 以糠醛作主溶剂、以轻质烃作第二溶剂进行了润滑油双溶剂精制工艺的研究。
- The improved process allows the omission of two solvents, and the manufacture of fluvastatin at considerably lower cost and in higher throughput. 改进过程允许两个遗漏溶剂伐他汀和制造成本较低;在相当高的吞吐量.
- The author carried out study on alkaloid extraction of flavescent sophora root grown in Heilongjiang province by solvent process and made major investigation for alkalized part in process. 用溶剂法对黑龙江产的苦参进行生物碱的提取研究,并对工艺中的磁化部分进行了重点的考察。
- The author carried out study on alkaloid extraction of fiavescent sophora root grown in Heilongjiang province by solvent process and made major investigation for alkalized part in process. 用溶剂法对黑龙江产的苦参进行生物碱的提取研究,并对工艺中的碱化部分进行了重点的考察。
- Although the total amount of recycled solvent is relatively stable in a solvent process of hydrogenated rosin production,the lighter compositions may decrease in the process because of evaporation. 溶剂法氢化松香生产过程中,循环使用的溶剂总量变化不大,但其轻组分因更容易挥发而在生产过程的各个环节流失,含量会逐渐降低;
- Abstract: The author carried out study on alkaloid extraction of fiavescent sophora root grown in Heilongjiang province by solvent process and made major investigation for alkalized part in process. 摘 要: 用溶剂法对黑龙江产的苦参进行生物碱的提取研究,并对工艺中的碱化部分进行了重点的考察。
- OBJECTIVE To compare the dissolubility of roxithromycin of seven factories in two solvents. 目的比较7厂家罗红霉素在两种介质中的体外溶出度。
- A few of the major chemical manufactures are now offering solvent processes to the textile industry for scouring where little water is used. 有几家主要的化工厂现正提出在纺织工业中用水量少的精洗溶剂工艺规程。
- A few of the major chemical manufacturers are now offering solvent processes to the textile industry for scouring where little water is used. 有几家主要的化工厂现正提出在纺织工业中用水量少的精洗溶剂工艺规程。
- Heparin homogeneously mixed with polyurethane in the co-solvent of tetrahydrofuran and water through adjusting the ratio of the two solvents. 摘要利用全新的四氢呋喃和水的溶液体系将肝素与不溶于水的聚氨酯同溶液混合,制备出含有肝素的聚氨酯薄膜。
- The two systems of government are polar opposites. 这两种政体正好相反。
- The business is owned by two partners. 这家商行为两名合伙人所拥有。
- Production of Maleate Resins by Solvent Process 剂法生产顺了烯二酸酯树脂
- EMFRIG N oils are selected mineral oils by solvent processing and finishing, to give the light color, low pour point, low carbon residue, low floc point and good oxidation stability. EMFRIG N是以精选矿物油经溶剂提纯与精炼而成,具有浅色、低残碳、低絮凝点与优异的抗氧化性。
- The two elements are synthesized by a chemical process. 这两种元素已经化学合成。
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。