丁二烯

The quality of butadiene product could meet the process demand of next working procedure and raffinate C4 could meet the technical demand of 1 - butylene and MTBE plant through technical remoulding and optimization.

在实际生产运行过程中，通过技术改造与优化，产品丁二烯能够满足下游工序生产要求，副产抽余碳四的质量能够满足1-丁烯和MTBE装置的技术要求。

A polymer of chloroprene widely used as an oil and heat resistant rubber.

一种作为耐油耐热橡胶而广泛使用的氯丁二烯聚合物。

The influence of added methyl acrylate on the emulsion copolymerization of methacrylic acid and chloroprene in the presence of polyvinyl alcohol as a protective colloid was investigated.

研究了丙烯酸甲酯对聚乙烯醇为乳化剂的氯丁二烯和甲基丙烯酸乳液共聚合的影响。

The reaction temperature of chloroprene emulsion polymerization was controlled by computer.

用计算机控制氯丁二烯乳液聚合反应温度，经工业生产装置验证表明，聚合温度控制精度达标率为98％，聚合反应周期稳定在3.0～3.5h，聚合重现性增强，产品质量明显提高。

The valves feature a replaceable abrasion resistant Chloroprene seat, a 304 stainless steel seat guided gate, and PTFE packing.

这种阀门配置可更换的耐磨损氯丁二烯阀座，304不锈钢阀座引导的闸板，以及PTFE密封填料。

The effect on polymerization reaction and polymer with the catalyst system is systematacially studied in this paper, and the polymerization kinetics of butadiene is determined by dilatometer method.

本文系统的研究了该催化剂体系对聚合反应及其产物的影响，以膨胀计法测定了丁二烯聚合反应动力学。

Baced on the study of the high-rack flare of a petro-chemical enterpeise, the article gave its suggestions on how to take effective measures to ensure that the butadiene gas discharged into the flame system doesn't entrain combustible liquid.

对某石油化工的企业高架火炬，如何采取措施，以确保排放到火炬系统中的丁二烯气体不再携带可燃液体，从而其防火间距可以按辐射热计算来确定。

For investigations on the modified character of 1, 2 - polybutadiene (1,2 - PB), the structure changes of natural rubber/ 1,2 - PB blends under thermal oxygen process with chemical stress relaxation and Flory 's theory of crosslinking structure were studied and compared with those of NR/styrene-butadiene rubber and NR.

用化学应力弛豫法和Flory交联网络理论分析了在热氧作用下天然橡胶／1，2－聚丁二烯（NR／1，2－PB）共混物硫化胶的网络结构特征，并与NR／丁苯橡胶、NR硫化胶作了对比，以考察1，2－PB对NR／1，2－PB共混物老化性能的影响。

Truck tires have 27% isoprene and 14% neoprene.

[货车轮胎含有27%的异戊二烯和14%的氯丁二烯]

Magnesium chloride supported titanium catalyst was prepared by ball milling style.

研究了负载钛催化剂引发丁二烯在 0～ 4 0℃的本体沉淀聚合动力学。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。