ethylenes

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

乙反乙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).

红外光谱检测解聚产物是纯度很高的对苯甲酸甲酯（DMT）单体乙醇。

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

环氧化合物，环硫化合物乙亚胺也可以按类似于环氧?睦胱拥幕?理进行聚合。

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

由于酸酐经醇解转型酯化途径合成了对皮肤无过敏反应的反丁酸桂醇甘醇酯(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、丙少量非共轭烃的共聚物。

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

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

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

研究了以乙胺硬脂酰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.

研究了乙裂解炉服役炉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： 来自裂解乙的C5馏份含有非常有用的化工原料——异戊、环戊、戊间。

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

了采用FID的色谱仪聚乙醇20M色谱柱对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.

利用酚苄明结构中乙胺基的活性，结合一些钙拮抗剂含乙胺结构的特征，设计合成了5个酚苄明衍生物。

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

将乙肟溶于乙醇,通入气,生成稳定的乙肟溶液,这种方法制备的乙肟贮存稳定,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.

了由合成气为原料制取甲醇、乙醇、乙醇等产品的方法,指出了合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,再与乙醇缩醛化得到3-溴代丁醛缩乙醇,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质中、碱催化下的氧化缩合反应,是合成苯乙(烷)类化合物的重要途径.

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，研究了乙共聚单体含量的变化对VERSIFY共聚物结晶性能、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.

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

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公司乙装置脱甲烷塔运行的主要因素,并针对乙装置改造后脱甲烷塔存在的问题进行了探讨。