Invention Grant
- Patent Title: Process for the treatment of phosphogypsum and in particular of phosphogypsum leachates
- Patent Title (中): 磷石膏,特别是磷石膏浸出液的处理方法
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Application No.: US12480903Application Date: 2009-06-09
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Publication No.: US08172911B2Publication Date: 2012-05-08
- Inventor: Giuseppina Cerea
- Applicant: Giuseppina Cerea
- Applicant Address: IT Rozzano (Milano)
- Assignee: Vomm Chemipharma S.r.l.
- Current Assignee: Vomm Chemipharma S.r.l.
- Current Assignee Address: IT Rozzano (Milano)
- Agency: Lucas & Mercanti, LLP
- Priority: ITMI2008A1051 20080610
- Main IPC: C01F5/34
- IPC: C01F5/34

Abstract:
The present invention describes a process for treating phosphogypsum and in particular the related leachate that comprises the steps of feeding a continuous leachate flow with a dry content of below 5% by weight into a concentration unit heated to a predetermined temperature and equipped with dedicated mixing means, and continuously discharging a concentrated leachate flow having a dry content comprised between 20% and 95% by weight from the concentration unit.
Public/Granted literature
- US20090306451A1 Process for the treatment of phosphogypsum and in particular of phosphogypsum leachates Public/Granted day:2009-12-10
Information query
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