Education of the republic of uzbekistan tashkent state technical university named after islam karimov

№3/2021 year. 
Technical science and innovation 
54 
[11]
Ydens I. Solution properties of well-defined 2-(dimethylamino)ethyl methacrylatebased 
(co)polymers: A viscometric approach / I. Ydens, S. Moins, P. Degee, P. Dubois // 
European Polymer Journal. – 2005. – V. 41. – P. 1502–1509. 
[12]
Pulatova N.U., Maksumova O.S. 1-xlor-3-pipiridin-propan-2-ol sintezi // Texnik va 
ijtimoiy-iqtisodiy fanlar sohalarining muhim masalalari Respublika Oliy o‘quv yurtlararo 
ilmiy ishlar to‘plami, 2017. -
№
1. -B.187 - 188. 
[13]
Pulatova N.U., Maksumova O.S. Sintez slojni efirov na osnove piperidina // The scientific 
method. 
№
10/Warszava, Poland 2017, 26 - 28 p.
[14]
Pulatova N.U., Maksumova O.S. Sintez polimerov na osnove 1-xlor-3-piperidin-2-
propilmetakrilata // 8 Th International Conference Science and society -Methods and 
problems ofpractical application. Vancouver, Canada 2019. -RR. 139 - 141. 
UDC 547.362.3. 
 
PREPARATION OF THE INITIAL REAGENT - ETHYLENDIAMINES FOR 
PRODUCTION OF CORROSION INHIBITORS BY HETEROCYCLIC FRAGMENTS 
 
Y. Sh. Usmanova
1
, Z. M. Davlyatova
2
,
 
H. I. Kadirov
1
,
 
E. I. Cherkasova
3
 
1
Tashkent chemical-technological institute,Tashkent, Uzbekistan 
2
Fergana polytechnic institute,Tashkent, Uzbekistan
 
3
Department of "Chemical technology of oil and gas processing"
 
 
Abstract: 
The structure and operational characteristics of industrial inhibitors have been studied 
considering that the problems of the oil production and refining industry around the world are 
associated with corrosion, which reduces the service life of equipment, increases energy and 
water consumption by 28-32%. The active components of this type of corrosion inhibitors-
heterocyclic compounds including imidozoline is used.
In order to synthesize ethylenediamine, which is the main raw material for the production 
of imidozoline, studies on the catalytic changes of monoethanolamine were carried out selecting 
the system of catalystswith SNMXA serieswith ZnO: NiO:CuO:Сr
2
О
3
:Аl
2
O
3
 and compared with 
pure and purified MEA raw materials. A chemical-thermal method of purification of the residue 
of the cube by vacuum driving MEA was proposed, and it was found that the products of 
evaporative composition at low temperatures, which affect the amination reaction, are 
completely eliminated. Optimal conditions of MEA amination reaction were studied, MEA 
amineification was carried out at a temperature of 130 - 
180°C at a pressure of 20 MPa 
hydrogen, MEA: NH
3 
ratios from 1:22 to 1:28, MEA volume rate from 0.13 to 0.26 l / l, reaction 
The duration of 1 hour was found to be optimal.