Saint Petersburg, Russia
Saint Petersburg, Russia

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Utkin Y.A.,OAO RUSAL VAMI | Yanko E.A.,OAO RUSAL VAMI | Nosyrev V.S.,OOO YuNA | Soloveichik E.Y.,St Petersburg State Technological Institute | And 2 more authors.
Coke and Chemistry | Year: 2011

The quality of Russian and imported petroleum coke used in aluminum production is considered. The properties of Russian coke vary with the degree of roasting and the microimpurity content. © 2011 Allerton Press, Inc.


Soloveichik E.Y.,St Petersburg State Technological Institute | Utkin Y.A.,OAO Rusal VAMI | Strakhov V.M.,OAO VUKhIN
Coke and Chemistry | Year: 2013

The influence of chemical treatment (steeping in 1-10% concentrated boric acid) and heat treatment (in the range 1000-1800°C) in high-frequency equipment on the properties of carbon fiber is considered. © 2013 Allerton Press, Inc.


Utkin Y.A.,OAO RUSAL VAMI | Yanko E.A.,OAO RUSAL VAMI | Soloveichik E.Y.,Saint Petersburg State Polytechnic University | Strakhov V.M.,OAO VUKhIN
Coke and Chemistry | Year: 2012

The influence of various factors on the quality of anodes in aluminum production is analyzed. At present, no uniform approach permits the identification of a relation between the binder quality and the subsequent transformation of the pitch-coke composite in heat treatment. Measurable quality characteristics of the anodes used in aluminum production are considered. In selecting the optimum fluidity of the pitch and monitoring its variation at different temperatures, the determination of the dynamic viscosity is the most promising approach. The dynamic viscosity, which is the inverse of the fluidity, permits more reliable identification of the suppliers whose pitch is of the required quality. Introduction of a parameter such as the molecular-mass composition of the pitch in the corresponding standard is proposed. © 2012 Allerton Press, Inc.

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