methanol造句241. The biodiesel production through transesterification reaction from tallow with methanol was studied, and KOH as catalyst.
242. Extracting by acetone and freeze drying got highest hypericin content. The antioxidant activity decreased when increasing the incubation time, extracting in methanol performs better.
243. Process for synthesizing dimethyl phthalate ( DMP ) for phthalic anhydride and methanol has developed.
244. Vapor - liquid equilibria and separation of methanol - dimethyl carbonate azeotrope are ( reviewed ) in this paper.
245. Natural gas is important chemical material and is used as feed to produce synthesis ammonia, methanol and ethyne.
246. Iron and nickel carbonyl compounds are poisons to copper - based methanol synthesis catalysts.
247. This project mainly makes use of methanol to produce polyoxymethylene ( POM ) .
248. A Worldwide Group trading and distributing fertilizer in ammonia, (LPG), petrochemicals, methanol, crude oil and oil products.
248.try its best to gather and create good sentences.
249. Separation of methanol tetrahydrofuran water system by extractive distillation and phase separation with salt has been studied.
250. In this paper market status and trend of methanol and abroad has been analyzed and forecasted.