I am not an engineer or Russian but I speak Russian and I hope my translation can help you. Here it is:
'It is possible that the chemical reactions between the alumina (an oxide of aluminum) and the fluoroaluminium has a significant role in the re-crystallization of alumina'.
Trust Mariana's translation, but you know that Google Translate can translate many languages, although it is a literal translation by machine. According to Google Translate, the Russian statement says:
"It is possible that an important role in the recrystallization of alumina is played by chemical reactions of alumina with fluorosilicates."
You see this is pretty much the meaning that Mariana provided, but her translation is more elegant. :-)