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2 618 069

(13)

(51)

IPC

H01F1/44(2006-01-01)

C01G49/08(2006-01-01)

(21) (22)

Application

2016110281, 2016-03-21

(24)

Start date

2016-03-21

(22)

Actual filing date

2016-03-21

(45)

Published

2017-05-02

(72)

Inventor

Kalaeva Sakhiba Ziyaddin KzyMakarov Vladimir MikhajlovichZakharova Irina NikolaevnaShipilin Anatolij MikhajlovichChesnokova Aleksandra AleksandrovnaAndriyanova Alena ValerevnaKalaev Ejvaz Islam Ogly

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Professionalnogo Obrazovaniya Gosudarstvennyj Tekhnicheskij Universitet"

METHOD OF PRODUCING MAGNETIC LIQUID Russian patent published in 2017 - IPC H01F1/44 C01G49/08

Abstract RU 2618069 C1

FIELD: chemistry.

SUBSTANCE: method for magnetic fluid production includes formation of magnetite suspension, coating of magnetite particles surface with an adsorbed layer of stabilizing material. Then the magnetic particles suspension with adsorbed layer of stabilizing agent is warmed. The carrier liquid is introduced and the aqueous phase is separated. The source of trivalent and bivalent iron to produce magnetite is galvanic sludge dehydrated on a vacuum filter. Next, the galvanic sludge is dried at 105°C, calcined at 400-700 °C and milled in an electromagnetic device.

EFFECT: invention allows to reduce costs for magnetic fluid preparation, use large-tonnage production waste - galvanic sludge - as raw material.

2 tbl, 4 ex

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RU 2 618 069 C1

Authors

Kalaeva Sakhiba Ziyaddin Kzy

Makarov Vladimir Mikhajlovich

Zakharova Irina Nikolaevna

Shipilin Anatolij Mikhajlovich

Chesnokova Aleksandra Aleksandrovna

Andriyanova Alena Valerevna

Kalaev Ejvaz Islam Ogly

Dates

2017-05-02—Published

2016-03-21—Filed