丙烯腈

Objective: A method for determination of residual acrylonitrile monomer in food packaging by headspace capillary gas chromatography has been developed.

目的：建立了自动顶空毛细管气相色谱法测定食品包装材料中残留丙烯腈单体含量的分析方法。

The catalyst of the present invention is especially suitable for use in the conditions of low reaction temperature, high reaction pressure and high propylene load, may result in high yield of acrylonitrile, and may be used in industrial production.

本发明催化剂特别适用于在较低反应温度、较高的反应压力和高丙烯负荷条件下使用，且可保持高的丙烯腈单收，可用于工业生产中。

It was confirmed by ATRFTIR analysis that acrylonitrile was grafted onto the polymer surface.

并利用ATRFTIR分析证明了丙烯腈单体接枝到聚合物薄膜样品表面。

The reaction produces about 20 MJ/Kg acrylonitrile.

此反应产生大约20兆焦耳/公斤的丙烯腈。

Finally, Based on the whole research work, a new technology, named"ultimate recycle operation"was proposed. The main purpose of this technology is to obtain the maximum selectivity of acrylonitrile and it is of great importance on conservation of resources and environment protection.

最后，在全文研究工作的基础之上，本文提出一种"极限式循环操作"反应技术的设想，利用该反应技术能够最大限度地提高丙烯腈的选择性，降低深度氧化产物的生成，在节省资源和环境保护等方面均具有突出的应用意义。

The main by-product during the production of acrylonitrile is acetonitrile.

目前全球95%以上的丙烯腈是通过Sohio丙烯氨氧化路线生产的。

ABSTRACT The purpose of this paper is to improve the antistatic property of polyacrylonitrile fibers by using blend and copolymerization two methods.

聚丙烯腈纤维由于优良的性能，在工业和民用领域具有广泛的应用。

ABSTRACT The purpose of this paper is to improve the antistatic property of polyacrylonitrile fibers by using blend and copolymeriza...

聚丙烯腈纤维由于优良的性能，在工业和民用领域具有广泛的应用。

Generally, it is synthesized by the ammoxidation of propylene over multicomponent bismuth molybdate catalysts .

丙烯腈是一种非常重要的化工原料，是生产许多日用品的基础原料。

The elastomer material of most rubber seals (Section 6.3.2) is acrylonitrile butadiene rubber also known as nitrile rubber or buna N. For seals which are exposed to special thermal or chemical conditions, more expensive rubber grades may be required.

大部分的弹性体材料生产橡胶密封6.3.2丙烯腈顺丁橡胶也被称为丁腈橡胶或buna是：暴露于特别热或化学条件，更昂贵的橡胶级别也是可能被要求的。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。