顺丁烯

In this thesis, the nickel based mixed oxides aerogel catalyst was prepared by sol-gel-supercritical drying method and compared with that prepared by IM method.

研究新的技术，制备高性能的用于顺丁烯二酸酐选择加氢的催化剂是具有理论和实际应用价值的课题。

Poly is synthesized by the directly reaction of maleic anhydride and ammonia in water.

以顺丁烯二酸酐和浓氨水为原料采用直接液相聚合的方法合成了聚天冬氨酸。

Maleic anhydride is a important organic raw, the research of determination the content of it has practical meanings.

顺丁烯二酸酐是一种重要的有机原料，对其含量的测定有很大意义。

Therefore, determination the content of maleic anhydride in different conditions is researched.

因此，研究了各种条件下测定顺丁烯二酸酐的含量。

The way that determination the content of maleic anhydride has been reported is not accurate.

目前，文献上提到的顺丁烯二酸酐含量测定方法的误差较大。

The way that determination the content of maleie anhydride has been reported is not accurate.

目前，文献上提到的顺丁烯二酸酐含量测定方法的误差较大。

A new solid acid based on heteropolyacid has been proved to be a useful catalyst for the synthesis of dibutyl maleate .

新催化剂在顺丁烯二酸二丁酯的合成反应中显示很好的活性和温和的反应条件。

The coupling process of dehydrogenation of 1,4-butanediol and hydrogenation of dimethyl maleate over CuO/SiO2 catalysts to produce one important fine chemical γ-butyrolactone was carried out in a continuous fixed bed reactor under atmospheric pressure.

和传统的反应过程相比，耦合反应提高了顺丁烯二酸二甲酯加氢和1，4-丁二醇脱氢活性。

As superplasticizer , a series of comb-shaped copolymers of polycarboxylic acid were synthesized by polyoxyethylene allyl methyl diether, maleic anhydride, and styrene with different initiators,and esterified with PEO-n.

以聚氧乙烯甲基烯丙基二醚、顺丁烯二酸酐、苯乙烯等为共聚单体，采用不同引发剂，合成了一系列聚羧酸型梳状共聚物超分散剂，并以PEO n单酯化得酯化产物，研究了共聚物的结构、组成、添加量等对水泥粒子分散性能的影响。

The influences of the reaction conditions on the grafting rate of dibutyl maleate to black N330 and the grafted black N330 on the physical properties of NR vulcanizate were investigated.

探讨炭黑N3 3 0表面固相接枝顺丁烯二酸二丁酯的反应条件对DBM接枝率的影响及炭黑接枝DBM对NR硫化胶物理性能的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。