The presence of valuable and hazardous metals in waste printed circuit boards, especially,
motherboards, makes their recovery necessary as implies great economic and …

Research has been carried out to obtain carbonaceous concentrate from ash from the
combustion of Ekibastuz coals by the flotation method. To increase the efficiency of flotation …

The article proposes an environmentally friendly method for processing industrial waste by
the example of slags from the Balkhash copper smelting plant (Kazakhstan). The first stage …

Rapid development in electronics and high demand for upgraded devices result in the
generation of tons of e-waste every year. The presence of a significant amount of base and …

This article explores an environmentally friendly method of complex processing of printed
circuit boards of cell phones in order to extract gold and other valuable components without …

In this article, the effect of temperature and microwave irradiation on the apparent activation
energy of sulphuric acid leaching of copper slag from Balkhash copper smelter (Kazakhstan) …

E-waste is the fastest growing type of waste on a global scale. E-waste refers to trash
electrical and electronic equipment rejected or discarded in whole or in part during …

Electronic waste (e-waste) is one of the fastest-growing waste streams, with an annual rise
of nearly 3%-5% every year. According to the global e-waste monitor, 53.6 Mt of e-waste …

This paper presents a new approach to planning experiments for hydrometallurgical
processing of gold from waste printed circuit boards of cell phones by aqueous thiourea …

The article discusses the current state-of-the-art in the tin industry and the prospects of the
Republic of Kazakhstan. The evaluation is performed in terms of the development of …