English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Technical and economic indicators of enrichment of copper-molybdenum (porphyry copper) ores, which are represented by the most common, industrially significant natural form of molybdenum as a mineral molybdenite, are determined in many respects by the effeciency of the flotation reagent modes that allows achieving the most complete and selective extraction of copper and molybdenum into concentrates [1–7]. The development of new methods and modes of flotation, as a rule, is based on the search for creation of new reagents of various classes, which can significantly increase technological indicators of enrichment. One of the currently central directions of technological development of the porphyry copper ore enrichment is modifying the existing reagent modes of flotation [8–10]. The complexity in the enrichment of the ErdenetiynOvoo copper-molybdenum ores is caused not only by the mineral composition peculiarities and the presence of more than four types of ore, but also by the low content of target metals. According to the Hancock-Luyken formula [11] = ( – )/(100 – )100%, where is a recovery, is an yield of beneficiation concentrate, is the content of valuable mineral component in the feed ore, which sets the enrichment efficiency level , the process will be very effective for copper at > 75%; for molybdenum the effective process corresponds to the level of < 75%, but >50%. However, in the current market conditions for prices of main metals, the profitability of production for the Erdenetiyn-Ovoo porphyry ores with a metal content of Сu – 0.522% (the share of primary copper is 68.20%, that of oxidized one is 2.30%), Mo – 0.016%, and the base Substantiation of the Erdenetiyn-Ovoo copper-molybdenum ore flotation technology with the use of tertiary acetylene alcohols