RU2009146950A

RU2009146950A - METHOD FOR EXTRACTION OF METALS FROM GOLD-CONTAINING SULFIDE-OXIDIZED COPPER ORES

Info

Publication number: RU2009146950A
Application number: RU2009146950/02A
Authority: RU
Inventors: Любовь Николаевна Крылова (RU); Любовь Николаевна Крылова; Александр Викторович Канарский (RU); Александр Викторович Канарский; Эдуард Владимирович Адамов (RU); Эдуард Владимирович Адамов; Ольга Николаевна Травникова (RU); Ольга Николаевна Травникова
Priority date: 2009-12-18
Filing date: 2009-12-18
Publication date: 2011-06-27
Also published as: RU2428493C1

Abstract

1. Способ извлечения металлов из золотосодержащей сульфидно-окисленной медной руды, заключающийся в дроблении и измельчении золотосодержащей сульфидно-окисленной медной руды, гравитационном обогащении измельченной руды с получением золотосодержащего концентрата, коллективной флотации сульфидных и окисленных минералов меди из хвостов гравитации с выделением коллективного медного концентрата, чановом выщелачивании коллективного медного концентрата при перемешивании водным раствором серной кислоты при концентрации не менее 2 г/л с участием озона концентрацией в озоно-кислородной газовой смеси более 85 г/л, пероксида водорода и ионов оксидного железа концентрацией не менее 2 г/л, обезвоживании и промывке твердой фазы выщелачивания концентрата, экстракции меди из медьсодержащих растворов, флотационном извлечении меди и серебра из твердой фазы выщелачивания концентрата. ! 2. Способ по п.1, заключающийся в том, что гравитационное обогащение руды, измельченной до крупности 60% класса минус 0,063 мм, проводят в центробежных концентраторах с последующей доводкой выделяемого чернового золотосодержащего концентрата на концентрационных столах с получением кондиционного золотосодержащего концентрата (фиг.1). ! 3. Способ по п.1, заключающийся в том, что выщелачивание коллективного медного концентрата осуществляют при температуре 50°С, соотношении озона и пероксида водорода 1:1. ! 4. Способ по п.1, заключающийся в том, что флотационное извлечение меди и серебра из твердой фазы выщелачивания концентрата проводят при значении рН 6-8 без применения пенообразователя реагентом DSP017, состоящим из изобутилового дитиофосфата и т� 1. A method of extracting metals from gold-containing sulfide-oxidized copper ore, which consists in crushing and grinding gold-containing sulfide-oxidized copper ore, gravitational enrichment of crushed ore to obtain a gold-containing concentrate, collective flotation of sulfide and oxidized copper minerals from gravity tailings with the release of collective copper concentrate, vat leaching of a collective copper concentrate with stirring with an aqueous solution of sulfuric acid at a concentration of at least 2 g / l with the participation of ozone with a concentration in the ozone-oxygen gas mixture of more than 85 g / l, hydrogen peroxide and iron oxide ions with a concentration of at least 2 g / l, dehydration and washing the concentrate leaching solid phase, copper extraction from copper-containing solutions, copper and silver flotation recovery from the concentrate leaching solid phase. ! 2. The method according to claim 1, wherein the gravitational concentration of ore, crushed to a size of 60% of class minus 0.063 mm, is carried out in centrifugal concentrators, followed by fine-tuning of the separated rough gold-containing concentrate on concentration tables to obtain a conditional gold-containing concentrate (Fig. 1 ). ! 3. The method according to claim 1, comprising the fact that the leaching of the collective copper concentrate is carried out at a temperature of 50 ° C, the ratio of ozone and hydrogen peroxide is 1: 1. ! 4. The method according to claim 1, wherein the flotation recovery of copper and silver from the solid phase of the leaching of the concentrate is carried out at a pH value of 6-8 without the use of a foaming agent with a DSP017 reagent, consisting of isobutyl dithiophosphate, etc.

Claims

1. The method of extracting metals from gold-containing sulfide-oxidized copper ore, which consists in crushing and grinding gold-containing sulfide-oxidized copper ore, gravity concentration of crushed ore to obtain gold-containing concentrate, collective flotation of sulfide and oxidized minerals of copper from the tailings of gravity with the release of collective copper concentrate, collective leaching of collective copper concentrate with stirring with an aqueous solution of sulfuric acid at a concentration of at least 2 g / l s part of ozone with a concentration in the ozone-oxygen gas mixture of more than 85 g / l, hydrogen peroxide and iron oxide ions with a concentration of at least 2 g / l, dehydration and washing of the solid phase of leaching of the concentrate, extraction of copper from copper-containing solutions, flotation extraction of copper and silver from solid leaching phase of the concentrate.

2. The method according to claim 1, which consists in the fact that gravitational enrichment of ore, crushed to a particle size of 60% of class minus 0.063 mm, is carried out in centrifugal concentrators, followed by refinement of the allocated crude gold-bearing concentrate on concentration tables to obtain a conditioned gold-containing concentrate (Fig. 1 )

3. The method according to claim 1, which consists in the fact that the leaching of collective copper concentrate is carried out at a temperature of 50 ° C, the ratio of ozone and hydrogen peroxide 1: 1.

4. The method according to claim 1, which consists in the fact that flotation extraction of copper and silver from the solid phase of leaching of the concentrate is carried out at a pH of 6-8 without the use of a foaming agent with reagent DSP017, consisting of isobutyl dithiophosphate and thionocarbamate.

5. The method according to claim 1, which consists in the fact that the flotation extraction of copper and silver from the solid phase of leaching of the concentrate is carried out according to the scheme one main flotation operation, one control and one cleaning flotation operation (figure 2).

6. The method according to claim 1, which consists in the fact that the extraction of copper from solutions is carried out by liquid extraction and subsequent electroextraction, using the raffinate formed during liquid extraction to leach the concentrate and wash the solid leach phase.