refinery dross

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Thomas Totney — Thomas Totney, who adopted the names TheaurauJohn Tany, Theauroam Tannijahhh and Ram Johoram (bap. 21 January 1608, South Hykeham, Lincolnshire 1659) was an English preacher and religious visionary.Early activitiesTotney was the third, but eldest … Wikipedia
lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… … Universalium
refine — verb /ɹɪˈfaɪn/ a) To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify; as, to refine gold or silver; to refine iron; to refine wine or sugar … Wiktionary

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