为了降低重油催化裂化柴油中硫、氮等不安定组分的含量，采取添加fs化学精制剂的方法。
In order to decrease the content of unstable components such as sulphur, nitrogen and so on in RFCC LCO, an approach to chemical refining agent FS is adopted in our experiment.
对焦化柴油进行加氢精制前化学精制处理，可使焦化柴油中的胶质、氧化总不溶物、烯烃等含量大幅度降低。
The each content of gum, total oxidation insoluble matters and olefins, etc, is decreased significantly by chemical treatment of coker diesel oil before hydro-refining.
它是由天然棉和可循环的纸质层精制而成，它没有使用任何难以回收再利用的化学油墨或是制剂。
It’s crafted from natural cotton and recycled paper layer and it doesn’t use any chemical ink or adhesives that are tough to recycle.
它们擅长的领域如电子工业、精密工学和精制化学。
They specialise infields such as electronics manufacturing, precision engineering and finechemicals.
葵花油、红花油或棉子油及其分离品，不论是否精制，但未经化学改性。
Sunflower-seed, safflower or cottonseed oil and fractions thereof, whether or not refined, but not chemically modified.
鱼或海生哺乳动物的油、脂及其分离品，不论是否精制，但未经化学改性。
Fats and oils and their fractions, of fish or Marine mammals, whether or not refined, but not chemically modified.
科学家们认为，未来的许多食品将由食品化学家精制而成，味道可口，有利于健康。
Scientists believe that much of the future food will be skillfully prepared by food chemists and will be delicious and healthful.
科学家们认为，未来的许多食品将由食品化学家精制而成，味道可口，有利于健康。
Scientists believe that much of the future food will be skillfully prepared by food chemists will be delicious and healthful.
油橄榄油及其分离品，不论是否精制，但未经化学改性。
Olive oil and its fractions, whether or not refined, but not chemically modified.
棕榈油及其分离品，不论是否精制，但未经化学改性。
Palm oil and its fractions, whether or not refined, but not chemically modified.
大黄在提取精制工艺中的化学成分变化研究大黄素的湿热降解机理探讨。
Changes of chemical components of Radix et Rhizoma Rhei in the procedure of extracting and refining-study on the decomposition mechanism of emodin while heating in water.
花生油及其分离品，不论是否精制，但未经化学改性。
Ground-nut oil and its fractions, whether or not refined, but not chemically modified.
其他动物油、脂及其分离品，不论是否精制，但未经化学改性。
Other animal fats and oils and their fractions, whether or not refined, but not chemically modi - fied.
在高分子化学实验中，单体的精制主要是对烯类单体而言，也包括某些其它类型单体。
In polymer chemistry experiments, the monomer is refined mainly in terms of vinyl monomers, but also some other types of monomers.
采用化学方法以肉碱为底物，合成了外消旋乙酰肉碱，精制后可获得纯度99%以上的乙酰肉碱，收率为96%。
Acetyl L carnitine was synthesized from racemic carnitine chloride and acetic acid by chemical means. The purity of the refined product was over 99% and the yield was about 96%.
利用化学方法，由外消旋环氧氯丙烷出发，合成丁酸环氧丙酯，精制后可获得纯度96%以上的丁酸环氧丙酯，收率为47%。
Glycidyl butyrate was synthesized from racemic epichlorohydrin and butyric acid by chemical means. The purity of the refined product was over 96% and the yield was about 47%.
本发明为化学合成领域的盐酸二甲双胍精制方法。
The invention provides a method for refining metformin hydrochloride in the technical field of chemical synthesis.
50年代首次从茶叶中提取、精制出茶氨酸，并确定了它的化学结构，此后许多学者对其进行了大量的研究工作。
It was firstly extracted and refined from tea in 1950's and its chemical structure was also determined at the same time.
在糠醛精制过程中添加脱氮组分，采用物理抽提与化学反应相结合的方法对模拟基础油进行脱碱氮研究。
The research of furfural refining adding denitrogenation agents by the method of combining physical extraction and chemical reaction has been done.
阐明了从合成气和各种工业废气中分离和精制CO在开发C_1化学技术中的重要性。
In the development of C_1 Chemistry the significance of Separation and purification of CO from synthetic gas and a variety of industrial waste gases is elucidated.
为了生产用于分子筛脱蜡装置的正戊烷脱附剂，利用络合化学试剂对切割分离后的重整正戊烷油进行了脱烯烃精制实验。
In order to produce n pentane desorbing agent for molecular sieve dewaxing unit, the refining tests for reformed n pentane oil were carried out by using complexing agents.
方法：运用天然药物化学的分离精制方法进行单体化合物的分离。
Method: the single constituents were separated by the methods of phytochemistry.
菜子油或芥子油及其分离品，不论是否精制，但未经化学改性。
Rape, colza or mustard oil and fractions thereof, whether or not refined, but not chemic - ally modified.
熔融结晶精制技术目前不仅在精细化工产品和同分异构体的分离中得到了推广应用，而且在大吨位的有机化学品，如双酚a、萘等的生产中也得到了应用。
Melt crystallization is not only used in the separation of fine chemicals and isomers but is also used in the production of large output of organic chemicals such as bisphenol a and naphthalene.
高纯甲醇是一种大量应用于化学及微电子工业领域中的重要溶剂，脱水是工业甲醇纯化精制过程中的一个关键问题。
High purity methanol is one of the very important solvents for chemical industry and microelectronic industry. Dehydration is the key process in the purification of industrial methanol.
目的从山豆根中精制苦参碱和氧化苦参碱，并以此为化学对照品对山豆根药材进行薄层色谱鉴别。
OBJECTIVE to isolate and purify the two alkaloids matrine and oxymatrine and then to identify the commercial medicinal material of "Shandougen" by TLC.
目的从山豆根中精制苦参碱和氧化苦参碱，并以此为化学对照品对山豆根药材进行薄层色谱鉴别。
OBJECTIVE to isolate and purify the two alkaloids matrine and oxymatrine and then to identify the commercial medicinal material of "Shandougen" by TLC.
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