BR0302329A - Nanomaterial superparamagnético e processo para obtenção - Google Patents
Nanomaterial superparamagnético e processo para obtençãoInfo
- Publication number
- BR0302329A BR0302329A BR0302329A BR0302329A BR0302329A BR 0302329 A BR0302329 A BR 0302329A BR 0302329 A BR0302329 A BR 0302329A BR 0302329 A BR0302329 A BR 0302329A BR 0302329 A BR0302329 A BR 0302329A
- Authority
- BR
- Brazil
- Prior art keywords
- superparamagnetic
- obtaining
- particles
- magnetic
- magnetite
- Prior art date
Links
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- Compounds Of Iron (AREA)
Abstract
"NANOMATERIAL SUPERPARAMAGNéTICO E PROCESSO PARA OBTENçãO". A presente invenção refere-se a um nanomaterial superparamagnético composto de magnetita, polímero organossilano e agente extrator e processo para obtenção. As partículas de magnetita estão em escala nanométrica para apresentar a propriedade superparamagnética. As nanopartículas desse material superparamagnético possuem grupos funcionais com grande afinidade pelos íons metálicos trivalentes, tetra e hexavalentes e podem ser utilizadas para a remoção de poluentes metálicos tóxicos presentes nos efluentes industriais e radioativos. As nano e micropartículas magnéticas modificadas são conhecidas para a purificação de soluções, no campo da biomedicina, biologia molecular, medicina de diagnóstico e química. Essas partículas apresentam propriedades magnéticas somente na presença de campo magnético sendo que após a sua saturação podem ser facilmente separados do meio aquoso com a aplicação de um campo magnético, eliminando a etapa de filtração ou de centrifugação utilizados nos processos convencionais. As partículas possuem grande área específica e portanto atingem uma alta capacidade de saturação. No presente invento desenvolveu-se um processo para obtenção, partícula magnética altamente seletiva para íons metálicos tri, tetra e hexavalentes de soluções altamente ácidas. A partícula é constituída de um núcleo de magnetita superparamagnética totalmente recoberta por uma camada de composto organossilano, na qual é ancorado o agente extrator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0302329-0A BR0302329B1 (pt) | 2003-06-26 | 2003-06-26 | nanomaterial superparamagnético e processo para obtenção. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0302329-0A BR0302329B1 (pt) | 2003-06-26 | 2003-06-26 | nanomaterial superparamagnético e processo para obtenção. |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0302329A true BR0302329A (pt) | 2005-10-11 |
BR0302329B1 BR0302329B1 (pt) | 2012-09-18 |
Family
ID=35062842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0302329-0A BR0302329B1 (pt) | 2003-06-26 | 2003-06-26 | nanomaterial superparamagnético e processo para obtenção. |
Country Status (1)
Country | Link |
---|---|
BR (1) | BR0302329B1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10344201B2 (en) | 2015-02-26 | 2019-07-09 | Petróleo Brasileiro S.A.—Petrobras | Process for the production of nanoparticles and compositions |
-
2003
- 2003-06-26 BR BRPI0302329-0A patent/BR0302329B1/pt active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10344201B2 (en) | 2015-02-26 | 2019-07-09 | Petróleo Brasileiro S.A.—Petrobras | Process for the production of nanoparticles and compositions |
Also Published As
Publication number | Publication date |
---|---|
BR0302329B1 (pt) | 2012-09-18 |
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Legal Events
Date | Code | Title | Description |
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B06G | Technical and formal requirements: other requirements [chapter 6.7 patent gazette] |
Free format text: BASEADO NO ART. 216 1 DA LPI, APRESENTE COPIA AUTENTICADA DA PROCURACAO PARA QUE ESTA SEJA ACEITA. |
|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/06/2003, OBSERVADAS AS CONDICOES LEGAIS. |
|
B15K | Others concerning applications: alteration of classification |
Ipc: C02F 1/48 (2006.01), B01J 47/016 (2017.01), B03C 1 |