Method For Manufacturing Ammonium Sulphate And Calcium Carbonate From Phosphogypsum
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 28, 2023
app pub date -
Jul 28, 2021
filing date -
Jul 31, 2020
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to a method for manufacturing ammonium sulphate and calcium carbonate from phosphogypsum, characterised in that it comprises the following steps: —dispersing phosphogypsum in water to form a phosphogypsum liquid suspension, —sparging gaseous carbon dioxide and gaseous ammonia in the phosphogypsum liquid suspension to precipitate calcium carbonate, —filtering the phosphogypsum liquid suspension to produce a filtrate comprising ammonium sulphate, and a solid residue comprising the calcium carbonate precipitate, —evaporating the filtrate to produce ammonium sulphate and drying the solid residue to produce calcium carbonate.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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