The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.

以正庚醛、代和溴代正丁烷为原料,合成了正庚醛正丁醇缩醛。

There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥灰岩比纯灰岩所产气体中含有更多的甲烷、乙烷、异丁烷和异戊烷。

Objective To establish a method of breath-butagas testing of mental patient.

目的建立一种精病人呼出气中丁烷的检测方法,用以诊断精病患者。

The operation pressure of debutanizer was unstable since a light hydrocarbon recovery unit had been put into use.

某轻烃回收装置自投用以来,脱丁烷塔操作压力一直不稳定。

The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride, carbide and oxycarbide catalysts of transition metals.

目前,正丁烷脱氢异构可以分为两类,过渡金属双功能和过渡金属氮物、碳物和碳氧物。