Large-scale preparation of bio gasoline requires transesterification. The key technology in the synthesis of ethanol gasoline is the choice of catalyst. Phosphotungstic acid or silicotungstic acid is a tungstic heteropoly acid salt. It is an environmentally friendly catalyst widely used in recent years. They have strong generation acidity. 

On the 13 day of September, approved by the State Council, the fifteen departments of the national development and Reform Commission and the National Energy Board jointly issued the implementation plan of expanding the production of bio fuel ethanol and promoting the ethanol gasoline for vehicles.

Richard feynman once said there was a ‘sleeping dragon’ lying dormant in the bowels of the los alamos laboratory. And there were a few scientists who decided to tickle its tail, with fatal consequences.

Tungsten carbide market covers worldwide information and accurate data about tungsten carbide industry, with a complete study of market based on market drivers, market challenges, future trends. Tungsten carbide market also provides analysis by type, application, regions, vendors, technology, new entrants, raw materials analysis, manufacturing process.

Analysis of latest tungsten market in China from Chinatungsten Online: This week, Chinese tungsten price is stable with good momentum. As more and more mines stop work to undergo repair, some downstream businesses that are optimistic about the late market have demand for stocking up. Tungsten raw material supply remains tight, supporting the good mentality of sellers.

Rare earth market quotation: Chinese rare earth price keeps stable on the whole amid praseodymium neodymium metal price rises slightly and lanthanum oxide price is unchanged. Before the Chinese Spring Festival, market trading is thin. Sellers are optimistic about the late market as policy side may continue to release good news. But purchases in the downstream market tend to be cautious. After all, there are still adequate stocks in the rare earth market.

Trading in the international molybdenum market is thin owing to the weak demand and the price of ferro molybdenum and molybdenum oxide rises slightly. In China, the whole market is quiet and price maintains weak adjustment.

Analysis of latest tungsten market in China from Chinatungsten Online: Though raw material market shows tight supply again, most companies have not high willingness in selling and thus the whole trading volume is less. There are high quotations in some regions, but the actual transactions cannot support the rise of price.

Rare earth market quotation: Chinese rare earth price keeps the same trend with the previous trading day, with quiet trading atmosphere. Near the holiday, the whole market comes into the stage of waiting and seeing. In addition, the transportation is greatly influenced by the rainy and snowy. Therefore, sellers with good expectations for the late price are reluctant to sell. On the whole, rare earth price is likely to stabilize before the holiday.

In Chinese molybdenum market, the quotation from mines maintain in a high level, first grade tungsten concentrates have prices but no sales, and the trading for regular grade molybdenum concentrates reduces. With the approaching of Chinese Spring Festival, many international carriers are gradually stopping providing services, so foreign raw materials cannot be imported into the Chinese market now, which will stabilize molybdenum price.