METHOD AND PLANT FOR DEPLETING SODIUM THIOCYANATE IN WASHING LIQUORS AND FOR OBTAINING PURE SODIUM THIOCYANATE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 4, 2007
app pub date -
Mar 30, 2007
filing date -
Mar 30, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for depleting sodium thiocyanate (NaSCN) from washing solutions to obtain pure sodium thiocyanate. By adding an anti-solvent such as ethanol, which acts as anti-solvent for the main part of the accompanying salts in the solution, the major part of these accompanying salts can be separated by precipitation in a crystallization and removed, for example, by filtration, whereas the NaSCN remains in the solution. After separating the anti-solvent from the remaining aqueous solution in a rectification, a very pure crystallized NaSCN is produced in a NaSCN crystallization. After washing in a counterstream washing apparatus, the obtained crystallized NaSCN product has a purity of at least 99%.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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