Recently, it was learned from the China National Machinery Industry Federation that China's machinery industry is expected to have a slightly higher economic operating speed than last year, but it is still at a relatively low level. The annual growth rate of production and sales will be around 12%, and the profit growth rate will be 8 %about. It is understood that in the first half of the year, the efficiency of China's machinery industry rose faster than the production and sales. In the first six months of this year, the total revenue of main operations was 9.45 trillion yuan, an increase of 12.92% year-on-year.
According to statistics, in the first six months of this year, the value-added of the machinery industry increased by 9.2% year-on-year, 0.2 percentage points higher than the same period of last year, and it was close to the national average level. The export of foreign trade was roughly the same as that of the previous year. The export situation was severe and the cumulative growth rate of exports continued to fall.
Furfural, also known as 2-furaldehyde, its scientific name is α- Furan formaldehyde is a derivative in which the hydrogen atom at position 2 of furan is replaced by aldehyde group. It was originally prepared by co heating rice bran and dilute acid, so it is called furfural.
Furfural is formed by hydrolysis of pentosan to produce pentose under the action of acid, and then dehydration and cyclization of pentose. The main raw materials for production are corncob and other agricultural and sideline products. Chemically, furfural is an organic compound, belonging to furan aldehyde. It has an odor similar to almond oil, and is a liquid that will oxidize and turn pale yellow when exposed to air.
Sugar aldehyde is a basic organic chemical raw material that can not be produced by artificial synthesis in the world at present. It has two double bonds and one aldehyde group on the furan ring. This unique chemical structure can produce many derivatives and other chemical products through oxidation, hydrogenation, chlorination, digestion, condensation and other reactions. It is widely used in resins Liquid crystal casting (automobile, ship, aircraft, various engines, weapons, wind power generation, high-speed railway), synthetic plastics, medicine, essence, spices and other industries.
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