Production of iron sulfate monohydrate

Details Production of iron sulfate monohydrate Production of iron sulfate monohydrate

1975-12-15

1977-10-25

Stern, Edward

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423141, 23305F, 156DIG74, C01G 4914

Patent

active

040556310

ABSTRACT:
A process for the production of high purity iron sulfate monohydrate from an iron sulfide mineral feed involving a leaching, purification, crystallization and dehydration procedure to recover a solution of iron sulfate containing iron sulfate polyhydrates and to convert iron sulfate polyhydrates in a series of steps to monohydrate crystals. The process can be also advantageously used with iron sulfide feed materials containing non-ferrous metals with full separation and recovery of the non-ferrous metals in the sulfide residue of the leaching and purification process of this invention. It can also be used for the purification of industrial pickle liquor solutions which can be treated with the iron sulfide mineral feed in this process leach circuit with full recovery of the ferrous and non-ferrous metals content of these solutions.

REFERENCES:
patent: 2143805 (1939-01-01), Smith
patent: 3860696 (1975-01-01), McGauley et al.

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