Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1996-08-12
1998-09-29
Cintins, Ivars
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210664, 210669, 210677, 210685, 210687, C02F 900
Patent
active
058142240
ABSTRACT:
A method for complex procesing of sea-water comprises the successive steps of mechanical filtration, calcium separation on modified zeolite, magnesium separation on weak-acid cation exchanger and processing of the resulting softened sea-water, regeneration of the modified zeolite and regeneration of the weak-acid cation exchanger. During the step of processing of the softened sea-water, its desalination it carried out so as to produce fresh water and simulatneously produce secondary brine having a concentration of salts at least as high as 100 g/l whereby the modified zeolite is regenerated. A plant for implemention of the method of complex processing of sea-water comprises a filter, two sorption columns for calcium separation connected in parallel with each other, a sorption unit for magnesium separation, a softened sea-water processing unit and a mixed concentrate processing unit.
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patent: 5512178 (1996-04-01), Dempo
Horne, R.A. "Marine Chemistry: The Structure of Water . . . " Wiley-Interence, 1969, pp. 444-454.
Khamizov, R., et al. "Recovery of Valuable Mineral . . . " Ion Exhchange & Solvent Extraction. A Series of Advances, vol. 12, pp. 93-101, 108-111, 136-137.
Madani, A.A. "Zero-Discharge Direct-Contact . . . " Desalination, 85 (1992) pp. 179-195.
Abramov Evgeny Gennadievich
Basniev Kaplan Saferbievich
Chernyaev Valery Davydovich
Dmitrievsky Anatoly Nikolaevich
Dzhardzhimanov Alexandr Sergeevich
Aktsionernaya Kompania Po Transportu Nefti "Transneft"
Aktsionernoe Osbchestvo "Nauchno-Teknicheskaya Korporatsia" Chis
Cintins Ivars
Gosudarstvennaya Akademia Nefti Gaza IM. I.M.Gubkina
Institut Geokhimii I Analiticheskoi Khimii IM.V.I.Vernadskogo Ra
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