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·Copper corrosion poses a significant challenge to process stability and chip quality in the field of integrated circuit manufacturing This study comprehensively explored the corrosion inhibition performance of α benzoin oxime bzoxH 2 on copper by employing a combination of experimental methods and computational after the addition of
·In this study 5 nonyl salicylaldoxime 5 NSA was synthesized and used as a malachite collector Its flotation performances and adsorption mechanism were systematically investigated by micro flotation experiments contact angle measurements SEM EDS
·Some of the most important copper oxide minerals are listed in Table In most cases oxide copper ores contain more than one copper oxide mineral and also contain mixtures of sulphide and oxide copper minerals From a processing point of view the oxide copper ores can be divided into the following five groups Oxide copper ores
·Surface wettability is the key to affecting the flotation recovery of minerals; to reduce the hydrophilicity of the lead zinc oxide mineral surface sulfidation reconstruction is commonly used to form a sulfide film on the mineral surface thereby modifying the surface properties of the mineral to achieve efficient flotation separation [10]
·With the gradual depletion of copper sulfide resources efficient flotation technologies for the recovery of copper oxide minerals such as malachite have received significant attention Although sulfidization plays a critical role in malachite flotation the fundamental theory of sulfidization flotation remains uncertain in the context of
·Fig 1 c illustrated the effects of different Na 2 S concentrations on the flotation behavior of the malachite The concentrations of NH 4 Cl and CuSO 4 were 2 × 10 −4 mol/L and 3 × 10 −4 mol/L respectively The NaIX concentration was 6 × 10 −4 mol/L The highest flotation recovery of the malachite increased by % with the copper ammonium synergistic
·Semantic Scholar extracted view of "A novel decyl salicyl hydroxamic acid flotation collector Its synthesis and flotation separation of malachite against quartz" by Fangxu Li et al One of the main challenges in the copper oxide processing industry is the application of flotation to reduce operating costs
·Therefore an enhancement of the recovery and utilization level of oxidized copper ore with low grade and complex will improve the industrial production and development of copper metal resources [5] Malachite Cu2 OH 2CO3 is a common copper oxide ore which is usually recovered by direct flotation or pre sulfidization flotation [6 8]
Mexican copper ore % containing mainly copper oxide ramsbeckite and malachite and some copper sulfide chalcopyrite minerals In their research flotation with butyl xanthate as collector and
·The copper sulphides present in the blend were bornite and chalcopyrite while the oxides were malachite and minor previous flotation investigations of mixed copper oxide and sulphide
·In this study the flotation separation performances of malachite from calcite were investigated using a new chelating collector S carboxymethyl O O dibutyl dithiophosphate CMDTP by micro flotation tests which showed that CMDTP exhibited a stronger collecting power and a better selectivity on malachite than octyl hydroxamic acid OHA 8
·Malachite is a common copper oxide resource and it is usually enriched by sulfidization flotation Its floatability and recovery are greatly determined by the surface sulfidization results In this paper Pb NO 3 2 is used to pretreat malachite and the sulfidization mechanism of malachite was studied through microflotation experiments zeta
·Malachite is a typical refractory copper oxide mineral In this paper trithiocyanuric acid TMT was used as a novel activator for the activated flotation of malachite for the first time The effect of TMT on the flotation behavior of malachite was studied and the activation mechanism was discussed
·Findings The micro flotation results demonstrated HABTC was an excellent collector for malachite flotation and exhibited favorable selectivity for flotation separation of malachite from quartz or
·Asadi et al [25] beneficiated a sequential sulfidization flotation technique for copper oxide flotation taken from the Chahmora mine situated in Semnan province Iran They employed response
·1993 The physical properties of copper oxide ores are such that the high production of fines 38 µm size fraction is inevitable during the crushing and milling stages The evaluation of the effects of fine copper oxide ore on the results of flotation performance is a key issue that has not been taken into consideration
·To promote the flotation separation and recovery of copper oxide minerals from copper sulfide oxide ores was an attracting and challenging work for the mining industries Li et al 2019a;Liu et
The flotation of oxide copper ore with sodium oleate was investigated to determine the optimum pH and dosages of chemical reagents From the mineralogical analysis using X ray diffraction malachite…
·sulfuric acid However the free copper oxide mala chite and combined copper oxide chrysocolla in the ore can react with the sulfuric acid meaning that % of the undissolved Cu is copper sulfide Therefore leaching of the copper oxide ore yielded a low leaching efficiency and required a high temper ature and energy consumption
·Tetrazinan thione collector was used in flotation of copper oxide minerals • HTT held better flotation selectivity to malachite versus calcite than OHA • HTT covered on malachite to improve its surface hydrophobicity • Malachite chemisorbed HTT via forming Cu N and Cu S bonds
·Copper oxide minerals such as malachite do not respond well to the traditional copper sulfide collectors and require alternative flotation schemes ABSTRACT Obtaining high recovery in copper flotation plants has been always under investigation in recent years ABSTRACT Developing specific flotation collectors to improve the separation
·In this study the flotation separation performances of malachite from calcite were investigated using a new chelating collector S carboxymethyl O O dibutyl dithiophosphate CMDTP by micro
·The batch flotation results indicated that the copper oxide flotation recovery increased from % to % and the grade also raised from % to % after using the staged flotation
