Volume 56, Iss.2, 2021

Journal of Chemical Technology and Metallurgy

56, Iss. 2, 2021
ISSN 1314-7471 (print)
ISSN 1314-7978 (on line)

EDITOR-IN- CHIEF
Prof. Dr. Bogdana Koumanova
Tel: (+ 359 2) 81 63 302
University of Chemical Technology and Metallurgy
8 Kl. Ohridski, 1756 Sofia, Bulgaria
E-mail: journal@uctm.edu

Imidazolidinedione derivatives of nalidixic acid: synthesis, characterization and antimicrobial studies

Marin Marinov, Iliana Kostova, Emilia Naydenova, Neyko Stoyanov

 

Optimization of ultrasound synthesis of sucrose esters by selection of a suitable catalyst and reaction conditions

Dragomir Vassilev, Nadezhda Petkova, Milena Koleva, Panteley Denev

 

Analysis of H-bonding interactions with Hirshfeld surfaces and geometry-optimized structure of the DL-valinium dihydrogen phosphate

Abdellatif Rafik, Hafid Zouihri, Taoufiq Guedira

 

A method for obtaining a polymer composite based on aromatic polyamide and silicon dioxide

Oleh Kabat, Volodymyr Sytar, Krystyna Heti, Victor Artemchuk

 

Thevetia peruviana oil-based composites reinforced with short sisal fibers: Fabrication and properties

Adebayo Felix Owa, Isiaka Oluwole Oladele, Adeolu Adesoji Adediran, Joseph Ajibade Omotoyinbo

 

The catalytic delignification of sunflower stalks with hydrogen peroxide in the environment of acetic acid

Iryna Trembus, Juliy Trophimchuk, Iryna Deykun, Romaniy Cheropkina

 

Preparation of ceramic membranes for microfiltration based on marl clay and natural zeolite from deposites in Bulgaria

Albena Yoleva, Stoyan Djambazov, Sibel Sabrieva

 

Lipase production through solid-state fermentation on coconut pulp using mold isolated from fermented soybean

Nanik Wijayati, Miftah Al Azizah, Sri Mursiti, Roswanira Abdul Wahab

 

Study of the dehydration of an aqueous solution of maltotriose by the IR-Fourier spectroscopy

Vladimir Sinyayev, Gulparshyn Toxeitova, Aigul Batyrbayeva, Larissa Sassykova, Yermek Sakhipov

 

Reinforcement efficiency of copper nanoparticles on epoxy matrix bactericide composite

Henry K. Talabi, Benjamin O. Adewuyi, O. Olaniran, Paul O. Ayekusibe

 

Synthesis of zeolite 4A using bauxite as aluminum source: Characterization and performance

Amin Ur Rahman, Waheed Ur Rehman, Farid Ullah Khan, Jehangir Shah

 

Implementing 2^4-1 fractional factorial design for filing the gaps in OVAT sorption studies of nitrate ions onto Jordanian zeolitic tuff

Mohammad A. Aliedeh, Salah H. Aljbour, Adnan M. Al-Harahsheh, Kamel Al-Zboon, Sura Al-Harahsheh

 

Ion-exchange softening of natural waters of high total hardness

Blagovesta Midyurova, Maria Dimova – Todorova

 

Integrated treatment of bio-wastes for circular economy

Ekaterina Serafimova, Vilma Petkova

 

Characterization of containing molybdenum phosphate coatings electrochemically formed on aluminum surfaces

Gergana P. Ilieva, Dimka I. Ivanova, Ludmil B. Fachikov

 

Influence of electrolyte composition and its temperature on the properties of Sn-Co powder

Momchil Alakushev, Katya Ignatova

 

Mechanical and corrosion performance of ZA-27 based composites reinforced with austenitic stainless steel machining chips

Kenneth Kanayo Alaneme, Kayode James Olaleye, Eloho Anita Okotete

 

Numerical modeling of the extrusion process of aluminum alloy 6xxx series section

Anna Kawałek, Teresa Bajor, Marcin Kwapisz, Sylwester Sawicki, Jacek Borowski

 

Modelling selective laser melting process for additive manufacturing

M. Rita Ridolfi, Paolo Folgarait, Andrea Di Schino

 

Method of calculation of strains and stresses on the width of a thin strip in cold rolling

Roman Shatalov

 

On the issue of obtaining parts from high speed steels by sintering steel powder and titanium carbide

Ilya Chumanov, Vadim Sedukhin, Sergey Lezhnev

 

New development of the theoretical bases of transients in a continuous group of broadband mill stands

Valeriy Chigirinsky, Abdrakhman Naizabekov, Sergey Lezhnev

 

FEM-study of bimetallic wire deformation during combined ECAP-drawing

Irina Volokitina, Andrey Volokitin, Abdrakhman Naizabekov, Evgeniy Panin

 

The influence of the mathematical model accuracy of the rheological properties of a 5XXX series aluminium alloy on the strain parameters and stress intensity in hot torsion testing

Konrad Laber

 

Obtaining of iron and copper by direct reduction of their mill scale wastes at electrothermal rotary bed

Boyan Yordanov, Dimitar Krastev

 

Development of mathematical model for prediction of reduction of metal pressure on rolls at transition from double-zone to single-zone cold rolling of steel strips lag

Anatoly V. Aldunin, Alexander O. Galkin

 

Guide for Authors

 

The present issue of Journal of Chemical Technology and Metallurgy is published with the financial support of the Bulgarian Fund “Scientific Research”, Contract No КП-06-НП2/51, 07.12.2020.