Investigation into the kinetic regularities of impurity transfer during the sulfuric acid leaching of the zinc-containing intermediate product of two-stage Waelz process of zinc cakes: Part I. leaching kinetics of individual model oxides / Pan'shin A. M.,Anisimova O. S.,Mamyachenkov S. V.,Rogozhnikov D. A. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2015. - V. 56, l. 4. - P. 372-376.

ISSN/EISSN:

1067-8212 / 1934-970X

Type:

Article

Abstract:

Kinetic regularities of impurity transfer into the solution when leaching the calcined Waelz oxide of zinc production are determined by leaching the individual iron, copper, and lead oxides. The escape of impurities into the solution during when the model iron and copper oxides is limited by the induction developmental period of the reaction, which is attributed to the selective adsorption of protons on the oxide surface and separate active centers with the subsequent diffusion of protons into the oxide phase bulk. The chemical interaction itself is the slowest stage at the degree of recovery alpha < 0.5, and the reaction runs in the kinetic mode.

Author keywords:

two-stage Waelz process; leaching; kinetics; limiting stage CUPRIC OXIDE; DISSOLUTION; MECHANISM

DOI:

10.3103/S1067821215040161

Web of Science ID:

ISI:000360701000002

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
EISSN	1934-970X
Keywords-Plus	CUPRIC OXIDE; DISSOLUTION; MECHANISM
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	osanis@mail.ru svmamyachenkov@yandex.ru
Number-of-Cited-References	13
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	8
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	CQ6FX