Functionalized sio2 microspheres for extracting oil from produced water

Himanshu Mishra (Inventor), A. S. F. Farinha (Inventor), Shahnawaz Sinha (Inventor)

Research output: Patent


Functionalized material, methods of producing the functionalized material, and use thereof for separation processes such as but not limited to use for separating and extracting a dissolved organic foulant, charged contaminant or oily matter or any combination thereof from water, such as produced water, are provided. In an embodiment, the functionalized material is a mineral material, such as mica, silica (e.g. an SiO2 microsphere) or a metal oxide, and the outer surface of the material is functionalized with an alkyl chain or a perfluorinated species. In an embodiment, the method of making the functionalized material, includes: a) providing a mineral material; b) providing an alkyl chain and/or a perfluorinated species, the alkyl chain or perfluorinated species selected to dissolve organic foulants, charged contaminants or oily matter from water or any combination thereof; c) hydroxylating the material via a concentrated acid solution or a basic solution; and d) grafting the alkyl chain and/or the perfluorinated species onto the material via a silanation reaction.
Original languageEnglish (US)
Patent numberWO 2017042709 A1
StatePublished - Mar 16 2017

Bibliographical note

KAUST Repository Item: Exported on 2019-02-13


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