- Patent Title: Process for obtaining nanocomposites, nanocomposite, method of capture and retrieval of a solubilized and/or dispersed material in organic or inorganic medium, method of purification of an organic or inorganic medium and capture and retrieval kit for a solubilized and/or dispersed material in organic or inorganic medium
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Application No.: US14737045Application Date: 2015-06-11
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Publication No.: US10086358B2Publication Date: 2018-10-02
- Inventor: Koiti Araki , Ulisses Condomitti Epamino , Alceu Totti Silveira Junior , Sergio Hiroshi Toma , Henrique Eisi Toma
- Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS , Universidade de Sao Paulo-USP
- Applicant Address: BR Rio de Janeiro BR Sao Paulo
- Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS,Universidade de Sao Paulo-USP
- Current Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS,Universidade de Sao Paulo-USP
- Current Assignee Address: BR Rio de Janeiro BR Sao Paulo
- Agency: Sughrue Mion, PLLC
- Priority: BR102014015139 20140620
- Main IPC: B01J20/20
- IPC: B01J20/20 ; B03C1/01 ; B01J20/06 ; B01J20/28 ; B01J20/30 ; B01D15/38 ; C02F1/28 ; C02F101/30 ; C02F103/30 ; C02F103/28 ; C02F101/20 ; C02F103/36 ; C02F1/48
Abstract:
The present invention lies in the fields of chemistry and nanotechnology and describes a nanocomposite to be used in the recovery of several compounds from inorganic or organic medium. Specifically, the invention presents a nanocomposite consisting of magnetic nanoparticles composed of Fe3O4 associated to an activated charcoal adsorbent substrate, a process to obtain and methods of use of the nanocomposite. The present invention enables the processing, concentration and recovery of large volumes of contaminated water, regenerating magnetic adsorbent material for reuse, in a cyclic and sustainable manner, transforming dispersed/diluted pollutants in pre-concentrates that can be easily processed, helping to conserve natural resources.
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