The type of sodium fluoroaluminate and the characteristics of sandy fluoroaluminate

   The type of sodium fluoroaluminate: sodium fluoroaluminate according to its fluoride and aluminum fluoride molecules ratio, can be divided into high molecular weight sodium fluoride and sodium fluoride and sodium aluminate. Most of China's domestic electrolytic aluminum plant is the use of molecular ratio of 1.8 to 2.2 low molecular weight than sodium fluoroaluminate electrolytic electrolyte. As the use of polymer than sodium fluoroaluminate in environmental protection and economic benefits are better than low molecular weight sodium fluoroaluminate, so the Chinese Sodium fluoroaluminate according to its physical properties can be divided into sandy fluoroaluminate, granular sodium fluoroaluminate and powdered sodium fluoroaluminate.
   Sand-like sodium fluoroaluminate is characterized by: 
① low melting point, melting speed, can shorten the time to enter the normal working state; 
② molecular ratio can be adjusted in a larger range, can adapt to different periods of sodium fluoride Molecular ratio of different requirements; ③ low water content, loss of fluorine small; 
④ granular, good mobility, conducive to transport; 
⑤ easy to obtain raw materials, low production costs.
   Granular sodium fluoroaluminate is characterized by: 
① good fluidity, dust pollution, suitable for mechanized cutting; 
② electrolytic production in the high yield, can reduce the cost of electrolytic aluminum; 
③ molecular ratio between 2.5 to 3.0, especially for In the electrolytic aluminum open groove; 

④ particles are mostly 1 ~ 10mm.