Nickel refining is the process of extracting pure nickel from its ores. The primary method involves crushing and grinding the ore, followed by a series of chemical treatments to separate nickel from other metals and impurities. This often includes processes like smelting and electrolysis, which help to produce high-purity nickel suitable for various applications. Once refined, nickel is used in many industries, particularly in the production of stainless steel and batteries. The refined nickel can also be alloyed with other metals to enhance strength and resistance to corrosion, making it a valuable material in modern manufacturing.