Recovering zinc from a material containing zinc and iron

Details Recovering zinc from a material containing zinc and iron Recovering zinc from a material containing zinc and iron

1977-01-26

1978-11-07

Hearn, Brian

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204108, 423 24, 423100, 423101, 423104, 423109, C01G 310, C01G 906, C25C 112, C25C 116

Patent

active

041244621

ABSTRACT:
Zinc is recovered from a material containing zinc and iron. The material is leached with sulphuric acid to produce a final pH of 3-5.5. Zinc powder is added to the leaching solution to precipitate polluting metals. Zinc is now extracted with a solution of a dialkyl phosphoric acid in an organic solvent. Zinc is extracted from the organic solution with sulphuric acid. Zinc is recovered from the sulphuric acid solution as metal or as zinc sulphate.

REFERENCES:
patent: 936762 (1909-10-01), Crispo
patent: 1922390 (1933-08-01), O'Brien et al.
patent: 2405302 (1946-08-01), Griffith et al.
patent: 3869360 (1975-03-01), Kane et al.
patent: 3966569 (1976-01-01), Reinhardt et al.
patent: 4029733 (1977-06-01), Faugeras et al.
Reinhardt, H. "Solvent Extraction for Recovery of Metal Waste" Chemistry and Industry, Mar. 1, 1975, pp. 210-213.
Schumb et al., Hydrogen Peroxide, Reinhold Pub. Corp, NY 1955 [QD181.H1S28] pp. 592-594.
Habashi, Principles of Extractive Metallurgy, vol. II, Gordon & Breach, N.Y. 1970, pp. 10, 206, 207, 332, 333.
Habashi, Principles of Extractive Metallurgy, vol. II, Gordon and Breach, N.Y., 1970, pp. 175, 176, 227, 228, 237, 238, 339.

Affiliated with

Also associated with

Rating

Recovering zinc from a material containing zinc and iron does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovering zinc from a material containing zinc and iron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovering zinc from a material containing zinc and iron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2232611