C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/116, 23/387
C01B 17/88 (2006.01) B01J 19/12 (2006.01) C01B 17/90 (2006.01)
Patent
CA 1259775
Abstract Purification and Reconcentration of Waste Sulphuric Acid This invention relates to a process for the production of concentrated sulphuric acid from waste sulphuric acid which comprises subjecting said waste acid to microwave energy for a sufficient period of time to effect production of water vapour, whereby said waste acid is concentrated to a desired degree; removing said water vapour; and collecting said concentrated acid.
474983
Barlow Charles Brian
C-I-L Sulphur Products Inc. -- Produits Sulfureux C-I-L Inc.
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