SYSTEMS FOR RECOVERING NITRIC ACID FROM PICKLING SOLUTIONS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Jun 4, 2014
filing date -
Feb 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In one embodiment, a system for treating a gas stream comprising NOx produced from a used or spent acid pickling solution includes a pickling apparatus, a first chamber, and a second chamber. The pickling apparatus includes an inlet adapted for introducing a reducing agent into contact with the acid pickling solution, wherein the reducing agent reacts with free nitric acid in the acid pickling solution to form NOx; and a headspace in which gas comprising NOx collects. The first chamber includes a first inlet communicating with the headspace, a second inlet communicating with a source of ozone, and an interior volume adapted to contact the NOx gas and the ozone. The second chamber may include a third inlet communicating with a source of water vapor, an interior volume adapted to contact the gaseous effluent from the first chamber with the water vapor introduced through the third inlet, and an outlet for collecting solubilized nitric acid from the interior volume of the second chamber.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully