ELECTROLYTIC METHOD OF OBTAINING NANOSIZED POWDER OF NEODYMIUM HEXOBORIDE Russian patent published in 2010 - IPC C01B35/04 C01F17/00 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical engineering. A glass-carbon crucible is filled with a salt mixture containing 3.0-5.0 wt % anhydrous neodymium chloride, 7.0-11.00 wt % potassium fluoroborate, the rest - equimolar mixture of potassium chloride and sodium chloride. The crucible with the salt mixture is put into a quartz cell and held in an atmosphere of clean and dry argon until the salt mixture melts. Upon achieving working temperature, a tungsten cathode is lowered into the molten mass and electrolysis carried out at current density ranging from -0.1 to -1.0 A/cm², electrolysis potential relative a glass-carbon comparison electrode ranging from -2.5 to -4.0 V at 700-800°C. Neodymium hexaboride powder is obtained at the cathode and has particle size of 40-180 nm.

EFFECT: invention lowers the process temperature to 700°C, reduces electric power consumption and enables to obtain the end product in pure form.

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