Method of sulfur purification

Details Method of sulfur purification Method of sulfur purification

1994-09-29

1997-08-12

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

4235671, C01B 1702

Patent

active

056562519

ABSTRACT:
Mercury in trace amounts in sulfur that has been recovered from zinc concentrates by direct pressure leaching or other hydrometallurgical processes can be removed effectively by bringing the molten sulfur, as it is held at a temperature not lower than the melting point of sulfur, into contact with activated alumina by passage through a packed layer of activated alumina or a filter coated with activated alumina, or by mixing with activated alumina under stirring or by passage through a fluidized layer of activated alumina. The method is capable of reducing the mercury content to 1 ppm or less, whereby sulfur having a purity of at least 99.99% that is advantageous for use as a raw material in the production of sulfuric acid and in other industries is manufactured at low cost on simple equipment.

REFERENCES:
patent: 2947614 (1960-08-01), Manthey
patent: 3945945 (1976-03-01), Kiovsky et al.
patent: 4534855 (1985-08-01), Silverman

Affiliated with

Also associated with

Rating

Method of sulfur purification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of sulfur purification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of sulfur purification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-157979