公开(公告)号：US20200080213A1

公开(公告)日：2020-03-12

申请号：US16307869

申请日：2017-05-30

申请人： United Company RUSAL Engineering and Technology Centre LLC

发明人： Dmitrij Aleksandrovich SIMAKOV ,  Aleksandr Olegovich GUSEV ,  Kirill Borisovich BAKIN ,  Aleksandr Viktorovich DONTSOV

IPC分类号： C25C3/20 ,  C25C3/18

摘要： This invention relates to nonferrous metallurgy, in particular to a device and method for electrolyte composition analysis based on differential thermal measurements for aluminum electrolysis control. The device is comprised of a metal body including a reference material and an electrolyte sample receptacle, temperature sensors immersed into the reference material and in an electrolyte sample, a system for registration, data processing, and visualization of obtained results. A method includes immersing a metal body into an electrolyte; filling a receptacles with the molten electrolyte; removing and cooling down the metal body having the filled receptacle above a crust on the molten electrolyte surface; drawing and analyzing differential-thermal curves based on which the liquidus temperature, electrolyte superheating and phase and blend compositions of electrolyte solid samples are determined taking into account all crystallizing phases the content of which in the electrolyte sample is no less than 3 wt %.