Back to results
US 10,215,492 B2Granted
Method for producing salts with a reduced water of crystallisation content
AssigneeAndritz Technology and Asset Management GmbH
InventorPaul Bernhard Krohl
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for drying salts with a water of crystallisation content in convective apparatuses that can additionally be indirectly heated. The invention is primarily characterised in that the drying process takes place with a moisture content of the drying gas above a determined level. The gas surrounding the salt particles during the drying process therefore has a specific humidity. In this way, the rate of drying is positively influenced.
Claims19
A method for drying moist salts containing water of crystallisation, comprising:
- drying the moist salts with a hot drying gas having a moisture content and temperature in a convective dryer whereby water is evaporated from the moist salts as the moist salts are dried and said evaporated water increases the moisture content of the drying gas in the dryer;
- and
- maintaining the absolute moisture content of the drying gas in the dryer above a predefined moisture content value, using only water evaporated from said moist salts, wherein
- the moisture content in the drying gas in the dryer is maintained above said predefined moisture content value, in dependence on sensing the water evaporation rate from said moist salts and the temperature of the drying gas.
1 more element
Dependencies are inferred from the claim text.