A pilot-scale catalytic distillation(CD) column was built for the synthesis of ethylene glycol monobutyl ether(EGMBE) from ethylene oxide(EO) and n-butanol.

A new equipment detergent has been developed based on the deoiling synergism of ethylene glycol monobutyl ether, surfactant and alkaline assistant, and combined with the deoiling characteristics of organic solvent and water-based detergent.

Thus it is presented an effective RNA extraction method based on the nuclease adsorbent macaloid,poly vinyl pyrrolidone,and high concentration of KAc and ethylene glycol monobutyl ether,which has successfully extracted high-quality RNA from many materials difficult to RNA isolation,such as RNase-rich rabbit liver,plant and microbial tissues rich in polysaccharides,lipids and polyphenol compounds.

The air and the deionized water were considered as standard examples and the densities of diethylene glycol monobutyl ether were measured over a temperature rang of 20 ℃ to 60 ℃ with an Anton Paar DMA60 DMA602 vibrating tube densimeter.

The synthesis of ethylene glycol dibutyl ether(EDB) based on the Williamson reaction of ethylene glycol monobutyl ether(EB) with sodium hydroxide and bromobutane(BuBr) was investigated.