Industrial production method of hexagonal boron nitride

1, borax+urea, reacted to 1200℃ in ammonia atmosphere, which is a traditional process with poor crystallization, serious air pollution and high energy consumption.

2, boric acid+ether amine, the reaction temperature is nearly 2000 degrees in a closed environment, modern international technology, good crystallization, large single crystal, high purity, little pollution and high efficiency.

1 method is the method of most domestic manufacturers, and we use 2 method.