ethylenes

35. Ethylene and trans-dichloroethylene are both inactive in the infra-red in this region .

乙烯反式二氯乙烯在红外光谱的这个区域都无活性。

The main products of PET supercritical methanolysis are dimethyl terephthalate(DMT) and ethylene glycol(EG).

红外光谱检测聚产是纯度很高的对苯二甲酸二甲酯（DMT）单体乙二醇。

Epoxides, episulphides and ethylene imines also polymerize via similar cyclic onium ion mechanisms.

环氧化，环硫化乙烯亚胺也可以按类似于环氧?睦胱拥幕?理进行聚。

Stearone glycol fumaric acid (SGF) was synthesized with maleicanhydride, cinnamyl alcohol and ethylene glycol.

由于烯二酸酐经醇转型酯化途径成了对皮肤无过敏反应的反丁烯二酸桂醇甘醇酯(SGF)。

Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.

三元乙丙橡胶（EPDM）是乙烯、丙烯少量非共轭二烯烃的共聚。

Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst.

以醋酸乙二醇单乙醚为原料,活性白土负载磷钨酸作为催化剂,成了乙二醇单乙醚醋酸酯。

Preparation of ethylene bis stearamide using stearyl chloride and ethylenediamine (EDA) as raw materials has been studied.

研究了以乙二胺硬脂酰氯为原料制备乙撑双硬脂酰胺的反应,讨论了原料配比、反应时间、反应温度的影响。

The relation of internal microstructure damage degree of furnace tube in a ethylene pyrolyzer with weldability was studied.

研究了乙烯裂役管材料内部的组织损伤程度与焊接性的关系。

Abstract： The C5 Fraction derived from ethylene steamcracker contains some very useful components, isoprene, cyclopentadiene and piperylene.

摘 要： 来自裂乙烯的C5馏份含有非常有用的化工原料——异戊二烯、环戊二烯、戊间二烯。

The determination method of ethylene chlorohydrin content by u sing FID chromatograph polyethylene glycol 20M chromatographic column was introd uced.

介绍了采用FID的色谱仪聚乙二醇20M色谱柱对氯乙醇的定量测定方法。

According to the ethylene diamine moiety in the structure of some calcium antagonists,we designed and synthesized 5 unreported phenoxybenzamine derivatives.

利用酚苄明结构中氯乙胺基的活性，结一些钙拮抗剂含乙二胺结构的特征，设计成了5个酚苄明衍生。

The stable organic solution of dichloroglyoxime was prepared in high yield by chlorine aerated into the ethylene glycol solution of glyoxime.

将乙二肟溶于乙二醇,通入氯气,生成稳定的二氯乙二肟溶液,这种方法制备的二氯乙二肟贮存稳定,产率高。

The article has introduced the method such as methanol, ethanol, ethylene glycol, pointing out synthol is the new raw material of oildom.

介绍了由成气为原料制取甲醇、乙醇、乙二醇等产品的方法,指出了成气是石油化工的新原料。

Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.

巴豆醛先与溴化氢加成,再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇,收率80.8%。

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

芳基甲烷在有机溶剂介质中、碱催化下的氧化缩反应,是成二苯乙烯(烷)类化的重要途径.

The effect of ethylene comonomer content on the crystallization, mechanical and viscoelastic properties of VERSIFY copolymers was studied by DSC, DMTA, POM and WAXD.

通过DSC，DMTA，POMWAXD等手段，研究了乙烯共聚单体含量的变化对VERSIFY共聚结晶性能、力学性能粘弹性能的影响。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3C_4以上组分分离。

Catches an illness the flowering branch to have the mutual infectiousness, but died of old age the flowering branch is easy to have the ethylene acceleration deterioration.

染病花枝具有相互的感染性，而凋谢的花枝易产生乙烯加速衰败。

3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.

在洗衣粉中掺入螯剂，例如次氮基三乙酸酯（NTA）或者是乙二胺四乙酸酯（EDTA），这些螯剂易于形成水溶性的金属螯。

This article analyzes main factors that affect the actual operation of Demethanizer,and discusses the problems existing in the Demethanizer after the revamp of ethylene plant in Fushun,CCPC.

分析了影响中国石油抚顺石化分公司乙烯公司乙烯装置脱甲烷塔运行的主要因素,并针对乙烯装置改造后脱甲烷塔存在的问题进行了探讨。