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2 363 064

(13)

(51)

IPC

H01F1/36(2006-01-01)

B22F9/14(2006-01-01)

(21) (22)

Application

2008102680/02, 2008-01-23

(24)

Start date

2008-01-23

(22)

Actual filing date

2008-01-23

(45)

Published

2009-07-27

(72)

Inventor

Kalaeva Sakhiba Zijaddin KzyMakarov Vladimir MikhajlovichShipilin Anatolij MikhajlovichZakharova Irina NikolaevnaErekhinskaja Anna Gennad'EvnaBazhanov Nikolaj NikolaevichShipilin Mikhail Anatol'Evich

(73)

Holder

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

METHOD OF OBTAINING MAGNETIC LIQUID Russian patent published in 2009 - IPC H01F1/36 B22F9/14

Abstract RU 2363064 C1

FIELD: chemistry.

SUBSTANCE: invention relates to obtaining magnetic liquids, as well as synthesis of basic component of magnetic liquid highly dispersive magnetite ferrophase. Magnetic phase of magnetic liquid if obtained by electrochemical dissolving of electrodes from steel St 3, distance between which consists 5-15 mm, in electro conductive solution of table salt with concentration of NaCl 50-100g/m³ at voltage 24-36 V and current density 15.6 A/mm². Surface of magnetite particles is covered in water medium with adsorbed layer of stabilizing substance with further heating of obtained suspension. Magnetite particles are separated from water phase and mixed with non-water liquid-carrier.

EFFECT: simplicity of instrument execusion and possibility to control intensity of magnetite formation process by changing of electrolysis parametres.

1 tbl, 1 ex

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RU 2 363 064 C1

Authors

Kalaeva Sakhiba Zijaddin Kzy

Makarov Vladimir Mikhajlovich

Shipilin Anatolij Mikhajlovich

Zakharova Irina Nikolaevna

Erekhinskaja Anna Gennad'Evna

Bazhanov Nikolaj Nikolaevich

Shipilin Mikhail Anatol'Evich

Dates

2009-07-27—Published

2008-01-23—Filed