Harris process

Harris process

[′har·əs ‚prä·səs]
(metallurgy)
A method for refining lead in which the liquid bullion is sprayed through molten caustic soda and molten sodium nitrate; arsenic, antimony, and tin are oxidized, converted into sodium salts, and skimmed from the bath.
References in periodicals archive ?
In Europe, Harris processes soda ash at Mathes and Weber, of Duisburg, Germany.
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