35results about How to "Avoid complexation" patented technology

The invention belongs to the technical field of catalysis, and particularly relates to a catalyst for tartaric acid synthesis and a preparation method thereof. The TS-1 molecular sieve is used as a matrix, vanadium and niobium are doped into the TS-1 molecular sieve, then phosphotungstic acid is adopted for further modification on the surface of the vanadium and niobium doped TS-1 molecular sieve, the prepared catalyst shows excellent catalytic activity in the process of preparing tartaric acid by using maleic anhydride as a raw material, the prepared tartaric acid is high in yield, and the product is easy to separate.

The invention relates to the technical field of display, in particular to an organic compound and application thereof. The organic compound provided by the invention has the structure as shown in the formula (1), so that the organic electroluminescent device containing the organic compound has relatively low driving voltage, relatively high current efficiency and relatively long service life.