METHOD OF PURIFYING GASES CONTAINING MERCURY VAPOUR

• US 3,849,537 A
• Filed: 02/23/1972
• Issued: 11/19/1974
• Est. Priority Date: 02/23/1971
• Status: Expired due to Term

• Current Assignee: Allgulin T
• Original Assignee: Allgulin T
• Inventors: ALLGULIN T
• Application Number:
  US05/228,610
• Time in Patent Office: 1,000 Days
• US Class Current: 423/210
• CPC Class Codes: B01D 53/64 Heavy metals or compounds thereof, e.g. mercury
• CPC Class Codes: C01B 17/56 Separation; Purification
• CPC Class Codes: C01G 13/00 Compounds of mercury
• CPC Class Codes: C01G 13/04 Halides
• CPC Class Codes: C22B 43/00 Obtaining mercury

Abstract

DRAWING

1. A METHOD FOR PURIFYING GASES CONTAINING GASEOUS ELEMENTARY MERCURY, COMPRISING: PREPARING A WASHING SOLUTION CONTAINING MERCURY (II) IONS IN A QUANTITY FROM 0.02 G./L. TO SATURATION LEVEL AND A QUANTITY OF AT LEAST ONE OF THE IONS SELECTED FROM THE GROUP C;-, BR-, I- AND SO4 2- WHICH FORM SPARINGLY SOLUBLE HG(I) SALTS, THE QUANTITY OF CL-, BR-, I- AND SO4 2- BEING SUFFICIENT TO ENABLE FORMED HG(I) TO PRECIPITATE OUT FROM THE SOLUTION BUT INSUFFICIENT TO CAUSE CORRESPONDING HG(I) SALTS TO BE DISPROPORTIONED TO HG(II) AND HGO, WASHING THE CONTAMINATED GAS WITH SAID SOLUTION.

Claims

1. A METHOD FOR PURIFYING GASES CONTAINING GASEOUS ELEMENTARY MERCURY, COMPRISING:

PREPARING A WASHING SOLUTION CONTAINING MERCURY (II) IONS IN A QUANTITY FROM 0.02 G./L. TO SATURATION LEVEL AND A QUANTITY OF AT LEAST ONE OF THE IONS SELECTED FROM THE GROUP C;

-, BR-, I- AND SO4 2- WHICH FORM SPARINGLY SOLUBLE HG(I) SALTS, THE QUANTITY OF CL-, BR-, I- AND SO4 2- BEING SUFFICIENT TO ENABLE FORMED HG(I) TO PRECIPITATE OUT FROM THE SOLUTION BUT INSUFFICIENT TO CAUSE CORRESPONDING HG(I) SALTS TO BE DISPROPORTIONED TO HG(II) AND HGO, WASHING THE CONTAMINATED GAS WITH SAID SOLUTION.