Acid process

Ac´id proc´ess

(Iron Metal.) That variety of either the Bessemer or the open-hearth process in which the converter or hearth is lined with acid, that is, highly siliceous, material. Opposed to basic process.

acid process

[′as·əd ‚prä·səs] (chemical engineering) In paper manufacture, a pulp digestion process that uses an acidic reagent, for example, a bisulfite solution containing free sulfur dioxide. (metallurgy) A melting process carried out in a furnace lined with acidic materials which combine readily with the oxides in the ore.

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