Method and system for precision spheroidisation of graphite

A method for processing particles, the method comprising:

• introducing a fluid stream comprising graphite particles to an impact processor;
• milling the graphite particles in the impact processor;
• passing the milled graphite particles to an inlet of a classifier;
• separating the milled graphite particles in the classifier into a first graphite particle stream and a second graphite particle stream;
• passing the second graphite particle stream to a recirculation mixer valve;
• and
• recirculating at least some of the graphite particles in the second graphite particle stream to the inlet of the impact processor via a recirculation line from the recirculation mixer valve,
• wherein the classifier is a first classifier, the recirculation mixer valve is a first recirculation mixer valve, and the recirculation line is a first recirculation line, and wherein the method further comprises:
• passing the first graphite particle stream into an inlet of a second classifier;
• separating the milled graphite particles in the second classifier into a third graphite particle stream and a fourth graphite particle stream;
• passing the fourth graphite particle stream to a second recirculation mixer valve;
• recirculating at least some of the graphite particles in the fourth graphite particle stream to the inlet of the impact processor via a second recirculation line;
• passing the third graphite particle stream into an inlet of a third classifier;
• separating the milled graphite particles in the third classifier into a fifth graphite particle stream and a sixth graphite particle stream;
• passing the fifth graphite particle stream to a third recirculation mixer valve;
• and
• recirculating at least some of the graphite particles in the fifth graphite particle stream to the inlet of the impact processor via a third recirculation line.