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2 570 821

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(51)

IPC

H01F1/28(2006-01-01)

(21) (22)

Application

2014148857/07, 2014-12-03

(24)

Start date

2014-12-03

(22)

Actual filing date

2014-12-03

(45)

Published

2015-12-10

(72)

Inventor

Kalaeva Sakhiba Zijaddin KzyMakarov Vladimir MikhajlovichMal'Tseva Marina SergeevnaJamanina Nina SergeevnaNevzorov Il'Ja AleksandrovichKalaev Ehjvaz Islam Ogly

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"

METHOD OF PRODUCING WATER-BASED MAGNETIC LIQUID Russian patent published in 2015 - IPC H01F1/28

Abstract RU 2570821 C1

FIELD: chemistry.

SUBSTANCE: magnetic phase of a magnetic liquid - magnetite - is obtained using an electrochemical method by dissolving St 3 electrodes in an electroconductive aqueous NaCl solution, a stabilising substance - sodium oleate - for simultaneous coating of the surface of magnetite particles with an adsorbed layer of the stabilising substance. As a result of hydrolysis in said conditions, a water-based magnetic liquid is formed, the magnetic liquid having the following properties: volume ratio of magnetite 5-10%, density 1100-1250 kg/m³, saturation magnetisation 12-18 kA/m.

EFFECT: faster process of forming a magnetic liquid while maintaining high magnetic properties thereof.

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RU 2 570 821 C1

Authors

Kalaeva Sakhiba Zijaddin Kzy

Makarov Vladimir Mikhajlovich

Mal'Tseva Marina Sergeevna

Jamanina Nina Sergeevna

Nevzorov Il'Ja Aleksandrovich

Kalaev Ehjvaz Islam Ogly

Dates

2015-12-10—Published

2014-12-03—Filed