稀土湿法冶金项目,包括精矿处理、稀土分离和提纯等方面;
Projects on rare earth hydrometallurgy, including rare earth concentrate treatment, rare earth seperation and purification, etc.
溶析结晶是一种重要的分离和提纯技术,广泛应用于化工、医药、食品等领域。
It is an important separation and purification technique, which is widely used in the areas of chemical industry, pharmaceutical and food industry.
通过和传统的蛋白质类生物制品分离方法进行比较,介绍了膜分离技术在蛋白质类物质分离和提纯中的应用。
The text introduced the barrier separation technology in the separation and purification of protein substances through compared with traditional protein separation methods.
我知道威士忌是蒸馏来的。你刚才说“纯”,提纯和分离有什么不同呢?
I knew whisky is distilled. You say "pure", but what is the difference between purification and separation?
由于乙酰甲胺磷原油的合成技术已经相当成熟,因此,如何改进和优化现有分离提纯工艺成为急待解决的关键问题。
As the synthesis technology of acephate is fairly mature, so how to improve and optimize the separation and purification technology is becoming a key problem hurry to be resolved.
介绍了甲苯法生产己内酰胺废液的分离工艺条件、废液中盐的提纯和有机油的利用方法。
The separation process conditions of caprolactam wastewater by manner of toluene is introduced, the purification process for salt in wastewater and the utilization technology for oil is indicated.
对石油镍、钒的脱除、卟啉镍和卟啉钒的分离提纯以及鉴定方法进行了详细阐述。
The separation, purification and identification methods of nickel and vanadyl porphyrins are also recounted.
你刚才说“纯”,提纯和分离有什么不同呢?
You say "pure", but what is the difference between purification and separation?
本文主要对槐花中总黄酮的提取以及总黄酮单体—芦丁和槲皮素的分离提纯进行了研究。
We mainly research on the flavone extraction of the Sophora japonica and the separation of rutin and quercetin in this study.
结果表明该塔操作性能稳定,可作为科研和分离提纯小批料使用。
The results indicated the operating performance of the column was stable, and it could be used in scientific research, separating and purifying small batch material.
产品的提纯和酯分离可采用重结晶或其它分离技术,如液相色谱技术。
The purification of the product and the isolation of a crystalline ester is carried out by recrystallization or other purification techniques, such as liquid chromatographic techniques.
作者观察了采用化学消化、机械分离和离心提纯法制备的胰腺腺泡的机能。
The functional character of dispersed pancreatic acini prepared by the method including chemical digestion, mechanical isolation and centrifugal purification was studied.
因此,自70年代以来,磁性微球作为一种新型的功能材料,在细胞分离、蛋白质提纯、免疫测定和靶向药物等诸多领域有着广阔的应用前景。
Therefore, since 1970's, as a new type of functional material, it has gained broad applications in cell separation, protein purification, immunoassays, immobilized enzyme and target delivery of drug.
淘洗,淘选,淘析用清洗、倾析和沉淀的方法来提纯、分离或清除(例如,矿石)。
To purify, separate, or remove (ore, for example) by washing, decanting, and settling.
同时本文对烷基化产物进行了分离提纯,得到了纯的2-异丙基-6-甲基萘,并通过GC,GC-MS和NMR分析,确定了结构。
The separation and purification of the alkylation products have been studied. Pure 2-IP-6-MN is obtained and its structure is proved by GC, GC-MS and NMR.
阐述了杂醇油的性质、产生原因和提取、提纯分离技术以及应用。
In this paper, the properties, the extraction, and the purification and separation of fusel oil and the application of fusel oil were illustrated.
介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced.
通过重结晶对中间体和最终产品进行分离提纯。
The intermediate and final products were all purified by recrystallization.
综述了从煤焦油和石油中分离提纯2,6 -二甲基萘工艺。
The separation and purification processes of 2, 6-dmn from coal and petroleum tar are reviewed.
在稀有金属萃取和提纯中分离金属盐类。
In the separation of metal salts in the extraction and purification of rare metals.
目的:为深入研究海洋生物多糖的药用价值,对厚壳贻贝多糖进行分离提纯和生物学活性的研究。
Objective: To explore the influence of Mytilus coruscus polysaccharides, we extracted the polysaccharides from mussels and study its biologic activity.
介绍了分子蒸馏技术在热敏性有机化合物的提纯、食品和医药方面的分离纯化、精细化工产品、天然香料后处理等方面的应用现状。
The application of molecular distillation technology is reported in heat-sensitive chemicals, food and drug, chemical industry products and the aftermath of natural spices industry in this paper.
大鼠心肌细胞核采用差速离心和密度梯度离心分离提纯。
Velocity and isopyknic gradient centrifugation was employed to fractionate rat myocardial nuclei.
通过苯酚和碳酸二甲酯的酯交换反应合成了碳酸甲苯酯,采用减压精馏对其进行了分离提纯,得到纯度>99.5%的碳酸甲苯酯;
Methyl phenyl carbonate(MPC) was prepared by transesterification of dimethyl carbonate(DMC) with phenol and the product with a purity exceeding 99.5% was obtained by vacuum distillation.
用尿素沉淀法和分子蒸馏法研究了二十碳五烯酸(简称e P A)、二十二碳六烯酸(简称d H A)乙酯的分离提纯。
In this study, urea inclusion method and molecular distillation method were applied in the purifications of ethyl ester of EPA and DHA.
结晶提纯包括结晶、固 液分离、溶解和压滤等工艺。
The crystallization and purification comprises crystallization, solid-liquid separation, dissolution, pressure filtration and so on.
本文介绍了2 ,6 -二甲基萘的用途和制备方法;综述了从煤焦油和石油中分离提纯2 ,6 -二甲基萘工艺。
The utilization and the prepartion methods of 2,6-DMN are introduced. The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed.
本文介绍了2 ,6 -二甲基萘的用途和制备方法;综述了从煤焦油和石油中分离提纯2 ,6 -二甲基萘工艺。
The utilization and the prepartion methods of 2,6-DMN are introduced. The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed.
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