Precipition and separation of salts from aqueous saline solutions
- Oklahoma State Univ., Stillwater, OK (United States)
Experimental database for the precipitation and separation of chloride, sulfate, and nitrate in possible cation forms from aqueous solutions were generated using, isopropylamine and other miscible organic solvents as precipitation agents. The measurements were carried out to demonstrate: (1) the precipitation of a single salt from an aqueous solution; (2) the coprecipitation of double or triple salts from an aqueous solution; (3) the viability of the precipitation process with actual saline waters. It was found that the precipitation process has a significant potential in the fields of saline water conversion as well as the recovery of radioactive materials and metals from aqueous solutions. A rigorous thermodynamic framework based on the excess Henry`s constant approach was developed to model the precipitation measurements. Wohl`s expansion was used to express the excess Gibbs free energy function. The precipitation measurements were sufficiently predicted by the framework. The framework provides an insight into the basic fundamentals underlying the precipitation process.
- Research Organization:
- US Department of Energy (USDOE), Washington DC (United States); Amoco Production Co., Houston, TX (United States); Conoco, Inc., Stamford, CT (United States)
- OSTI ID:
- 377201
- Report Number(s):
- CONF-9509296-; ON: DE96001221; TRN: 96:004054-0036
- Resource Relation:
- Conference: 2. international petroleum environmental conference: environmental issues and solutions in petroleum exploration, production, and refining, New Orleans, LA (United States), 25-27 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Environmental issues and solutions in petroleum exploration, production and refining; Sublette, K.L. [ed.]; PB: 1078 p.
- Country of Publication:
- United States
- Language:
- English
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