Cold crucible melting and characterization of titanate-zirconate pyrochlore as a potential rare earth/actinide waste form

La-Ce-Gd titanate-zirconate pyrochlore-based ceramics was synthesized at the lab-scale inductive melting unit with a 56?mm inner diameter cold crucible. Batch feeding rate and melting ratio were 3?kg/h and 3?kW?h/kg respectively. The ceramics is composed of 85–90?vol% zoned grains of the pyrochlore structure phase, the sample has excellent chemical durability in hot water and may be considered as a promising matrix for actinide – rare earth fraction of high level waste.     

Absorption of Nitrous Oxide from Air by Aqueous and Organic Solutions

Theoretical Foundations of Chemical Engineering - Findings from a study of the N2O absorption from an air flow in various aqueous and organic solutions at 293–298 K were reported. The maximum...     

Reduction of Nonuniformity in the Thickness of a Galvanic Coating Using Disableable Anode Sections under Current Reversal Conditions

Theoretical Foundations of Chemical Engineering - A method of reducing the nonuniformity of a galvanic coating on the basis of disableable anode sections in the inverse current reversal regime was...     

Development of float process in sheet glass production

Three independent methods for float glass production developed by Pilkington (England), PPG Industries (USA), and the Saratov Institute of Glass (Russia) are described. Fundamental differences between these methods are considered. Phases of the development of two-stage glass-molding technology at the Saratov Institute are described. Translated from Steklo i Keramika, No. 6, pp. 11 – 14, June, 2000.     

Physicochemical properties of hydroxylapatite produced by precipitation

An integrated physicochemical study of hydroxylapatite produced by the wet method is carried out. The possibility of using the material in bioceramics as well as in catalytic and sorption processes as catalyst and sorbent is demonstrated. Translated from Steklo i Keramika, No. 5, pp. 24 – 25, May, 2000.     

Improvement of thermal operations of glass-melting furnaces

The effect of thermal balance calculation for improvement of the efficiency of glass-melting furnaces is demonstrated. Translated from Steklo i Keramika, No. 6, pp. 6 – 8, June, 2000.