Monthly Archives - February 2020

Capacitor characteristics and applications of niobium oxide

In recent years, there have been continuous research reports on new oxide solid acids, among which the research on the fifth subgroup elements (V, Nb, Ta) has always been the focus of solid acid research. In industry, niobium pentoxide and tantalum pentoxide are collectively referred to as earth acids. Wet tantalum oxide (hydrated Ta2O5), niobium oxide (Nb2O5) are all excellent properties of the potential of solid acid catalyst. Niobium has very important research value, so we first give a [...]

China Molybdenum Industry Status

As of the end of 1996, China has identified 222 molybdenum mining areas, distributed in 29 provinces, autonomous regions and municipalities. Molybdenum reserves reach 8.4200 million tons, of which A + B + C grade accounts for 39.8% of the reserves, which is 3.345 million tons. For example, compared with China ’s industrial reserves (A + B + C) and western countries ’reserve bases, China ’s Lower than the US 5.4 million tons, reserves basis), and higher than Chile [...]

Hydroxyapatite-“Stand-in” for New Century Bone

Due to the effects of diseases, aging, and frequent traffic accidents, the number of cases of bone injury has increased year by year. According to statistics, there are 3 million orthopedic cases in China every year, so the demand for bone substitute materials is increasing. In recent years, bone substitute materials represented by hydroxyapatite have gradually become the darlings of clinical application. Hydroxyapatite is the main component of vertebrate bones and teeth, and has good biological activity and biocompatibility. Compared [...]