what is electrolytic refining
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ɪɴ ᴇʟᴇᴄᴛʀᴏʟʏᴛɪᴄ ʀᴇғɪɴɪɴɢ, ᴛʜᴇ ᴘʟᴀᴛᴇs ᴏғ ᴄʀᴜᴅᴇ ᴍᴇᴛᴀʟ ᴀʀᴇ ᴀɴᴏᴅɪᴄᴀʟʟʏ ᴅɪssᴏʟᴠᴇᴅ ɪɴ ᴀ sᴜɪᴛᴀʙʟᴇ ᴇʟᴇᴄᴛʀᴏʟʏᴛᴇ, ᴡʜɪʟᴇ “ᴘᴜʀᴇ” ᴍᴇᴛᴀʟ ɪs ᴅᴇᴘᴏsɪᴛᴇᴅ ᴏɴ ᴛʜᴇ ᴀᴅᴊᴀᴄᴇɴᴛ ᴄᴀᴛʜᴏᴅᴇs. ᴛʜᴇ ᴇʟᴇᴄᴛʀᴏʀᴇғɪɴɪɴɢ ᴘʀᴏᴄᴇss ᴡᴀs ɪɴᴛʀᴏᴅᴜᴄᴇᴅ ᴀʙᴏᴜᴛ ᴀ ʜᴜɴᴅʀᴇᴅ ʏᴇᴀʀs ᴀɢᴏ ᴛᴏ ᴘʀᴏᴅᴜᴄᴇ ᴀ sᴜʙsᴛɪᴛᴜᴛᴇ ᴛᴏ ғɪʀᴇ-ʀᴇғɪɴᴇᴅ ᴄᴏᴘᴘᴇʀ.
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In electrolytic refining, the plates of crude metal are anodically dissolved in a suitable electrolyte, while “pure” metal is deposited on the adjacent cathodes. The electrorefining process was introduced about a hundred years ago to produce a substitute to fire-refined copper.
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