Volume 49, Iss. 1, 2014

Journal of Chemical Technology and Metallurgy

49, Iss. 1, 2014
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

 

EFFECT OF GERMANIUM ON ZINC
ELECTROWINNING SULFATE SOLUTIONS

Erduan Mehmed, Vladislava Stefanova, Bisserka Lucheva

RECOVERY OF COPPER AND SILVER FROM WAELZ CLINKER
WASTED FROM ZINC PRODUCTION

Bisserka Lucheva, Peter Iliev, Katia Draganova, Vladislava Stefanova

ANALYTICAL STUDY OF THE WAELZ CLINKER DISSOLUTION
IN NH3 - (NH4)2SO4 SYSTEM

Katia Draganova, Vladislava Stefanova, Peter Iliev, Bisserka Lucheva

INVESTIGATION ON FATIGUE BEHAVIOR AND FATIGUE CRACK GROWTH
OF SPRING STEEL. PART I. WÖHLER CURVE AND FRACTURE SURFACES

Lyubov Nikolova, Rozina Yordanova, Donka Angelova

ON FACTORS INFLUENCING FATIGUE PROCESS
IN STEEL 316L USED IN HYDROGEN ENERGY TECHNOLOGIES

Donka Angelova, Rozina Yordanova, Tsvetelina Lazarova

SURFACE MODIFICATION OF STEELS BY ELECTRICAL DISCHARGE
TREATMENT IN ELECTROLYTE

Dimitar Krastev, Vesselin Paunov, Boyan Yordanov, Velichka Lazarova

FORMATION OF MOLYBDENUM CARBIDE DURING CARBIDIZATION
OF MOLYBDENUM CHIPS WITH POWDERED CARBON
AT ELECTROTHERMAL ROTARY BED CONDITION

Boyan Yordanov, Dimitar Krastev, Aleksander Davidkov, Krastyo Klyavkov

PRODUCTION EFFICIENCY
OF A FERRO-MOLIBDENUM ALLOY

Maksim Marinov, Georgi Mushev, Petar Petrov, Rossitsa Paunova, Radost Aleksandrova

BALANCE MODELING OF THE PROCESS FOR SiCaV ALLOY PRODUCING
FROM WASTE VANADIUM CATALYST

Petar Petrov, Maksim Marinov, Plamen Todorov, Radost Alexandrova, Rossitsa Paunova

SIMULATION OF ACCELERATED STRIP COOLING
ON THE HOT ROLLING MILL RUN-OUT ROLLER TABLE

Urij Muhin, Toncho Koinov, Sergej Belskij, Evgenij Makarov

APPLICATION OF BETWEEN-STAND COOLING
IN THE PRODUCTION OF HOT-ROLLED STRIPS

Urij Muhin, Toncho Koinov, Sergej Belskij, Evgenij Makarov

QUALITY CONTROL SYSTEM FOR A HOT-ROLLED METAL SURFACE
Igor Mazur, Toncho Koinov

STUDY ON THE INFLUENCE OF THE ANTI BENDING FORCE
OF WORKING ROLLS ON THE WIDENING IN HOT ROLLING OF THIN SHEET

Urij Muhin, Sergej Belskij, Toncho Koinov

GEOMETRICAL CHARACTERISTICS
OF THE SOLID BED IN A ROTARY KILN

Rayko Stanev, Iliyan Mitov, Eckehard Specht, Fabian Herz

STUDY ОN ТHE BEHAVIOUR OF FLOTATION FAYALITE WASTE
FROM COPPER PRODUCTION AT NONISOTHERMAL HEATING

Radost Alexandrova, Rossitsa Paunova, Maksim Marinov, Petar Petrov

MODELING OF BIOMASS GASIFICATION
Venko Petkov, Emil Mihailov, Nadezhda Kazakova

AN ALGORITHM FOR METALLURGICAL
WASTE MINIMIZATION

Dimitar Borisov, Boris Stefanov, Stoyan K. Stoyanov

NUMERICAL INVESTIGATION OF THERMAL AND FLUID DYNAMIC
BEHAVIOR OF SOLAR CHIMNEY BUILDING SYSTEMS

Oronzio Manca, Sergio Nardini, Paolo Romano, Emil Mihailov