Process for the entrapment and recovery of sulfur dioxide gas
Abstract
Abstract A PROCESS IS DISCLOSED WHEREIN SULFUR DIOXIDE GAS OR SULFUR DIOXIDE CONTAINING WASTE STACK GASES, ARE PASSED INTO A BED OF MIXED METALLIC OXIDES AND SILICATES WHICH CONTAINS NOT LESS THAN ABOUT 1% OR MORE THAN ABOUT 10% OF ITS WEIGHT IN ADDED WATER TO PRODUCE A DRY, PARTICULATE PRODUCT COMPRISING METALLIC SULFITE SALTS, META-SILICIC ACID, ADSORBED SULFUR DIOXIDE, AND UNREACTED OXIDIC AND SILICEOUS MATERIAL OF A KIND AND AMOUNT DEPENDENT UPON THE CHEMICAL NATURE AND REACTABILITY WITH SULFUR DIOXIDE GAS OF THE METALLIC OXIDE SILICATE MATERIAL PROCESSED. THE PRODUCT WHEN SUBSEQUENTLY MODERATELY HEATED RELEASES SUBSTANTIALLY EQUIMOLAR AMOUNTS OF SULFUR DIOXIDE IN CONJUNCTION WITH THE RELEASE OF ONLY MINOR AMOUNTS OF WATER.
Inventors
- 👤 H Wilson
Bibliographic Details
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