Cyclic process for the removal of sulfur dioxide and the recovery of sulfur from gases
Patent
·
OSTI ID:5318053
This patent describes a process for the removal of sulfur dioxide from a gas containing sulfur dioxide. It comprises contacting a gas containing sulfur dioxide with an aqueous solution comprising water, ferric chloride and a salt selected from the group consisting of barium chloride and calcium chloride to form ferrous chloride, hydrochloric acid and a precipitate selected from the group consisting of barium sulfate and calcium sulfate; and treating the aqueous solution with an oxidizing agent to convert ferrous chloride to ferric chloride.
- Assignee:
- NOV; NOV-92-010019; EDB-92-081643
- Patent Number(s):
- A; US 5066470
- Application Number:
- PPN: US 7-550319
- OSTI ID:
- 5318053
- Country of Publication:
- United States
- Language:
- English
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