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Mechanistic insights into stepwise activation of malachite …
Malachite is a common copper oxide mineral that is often enriched using the sulfidization–xanthate flotation method. Currently, the direct sulfidization method cannot yield copper concentrate products. Therefore, a new sulfidization flotation process was developed to promote the efficient recovery of malachite. In this study, Cu2+ was used as an activator to …
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Efficient lead-free flotation separation of malachite from …
Malachite (CuCO 3 ·Cu(OH) 2) is a significant copper oxide mineral, which is always found in the oxidized area of copper bearing ores [3]. As the main method for the separation …
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An Evaluation of Hydroxamate Collectors for Malachite Flotation
The flotation experiments demonstrated that 6 × 10⁻⁵ mol/L OCETC enabled the recovery of up to 98.24% malachite at pH 8.0. Under the same flotation conditions, OCETC exhibited comparable ...
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(PDF) A New Collector for Effectively Increasing Recovery in …
The flotation system can use the original 1000T mineral processing plant idle flotation equipment (the power of a single unit is 7.5 KW, a total of 18 flotation machines), the swirling device grading effect will have a greater impact on the yield of +25 µm, so it is necessary to select according to the fine characteristics of the grinding ...
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Selective modification of malachite with ammonium …
The malachite and calcite surfaces treated with CH 6 N 2 O 2 and Na 2 S·9H 2 O featured a flotation recovery rates of 82.51% and ∼ 20%, respectively, and achieved a satisfactory selective flotation separation of malachite from calcite. CH 6 N 2 O 2 could promote the formation of Cu-S on the malachite surface. A large number of Cu-S on the malachite surface resulted in …
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Partial replacement of sodium oleate using alcohols with …
A natural malachite sample was obtained from the Lupe mine, Puebla, Mexico. The sample was crushed, hand-sorted and dry-ground to obtain different fractions for different applications, namely, lumps for contact angle measurements, particles of −75 + 38 µm for micro-flotation tests, and fine particles for zeta potential measurements.
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Effective flotation separation of malachite from quartz with a
An XFG-type flotation equipment with a 30-mL flotation cell was employed to explore flotation performances of malachite and quartz with or without SDA under various pH …
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Synthesis of 1-(2-Hydroxyphenyl) Dec-2-en-1-One Oxime and Its Flotation
Materials. The XRD of malachite, quartz, and calcite were shown in Figure 1.The element analysis of malachite, quartz, and calcite were listed in Table 1. −75 + 38 μm fractions of single minerals were utilized in micro-flotation experiments, and −5 μm fractions were prepared for XPS measurement.Copper oxide ore from Jiangxi province in China was used in batch flotation.
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Effective flotation separation of malachite from quartz with …
An XFG-type flotation equipment with a 30-mL flotation cell was employed to explore flotation performances of malachite and quartz with or without SDA under various pH values.
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New Insights into the Role of Thiol Collectors in …
Malachite is one of the most important copper-bearing oxide minerals; however, it shows poor floatability prior to sulfidization under the thiol collector system. This study investigated the reasons for the low recovery of …
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Microscale exploration of the sulfidization flotation theory in …
With the gradual depletion of copper sulfide resources, efficient flotation technologies for the recovery of copper oxide minerals, such as malachite, have received …
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New Insights into the Role of Thiol Collectors in Malachite Flotation
Malachite is one of the most important copper-bearing oxide minerals; however, it shows poor floatability prior to sulfidization under the thiol collector system.
WhatsApp: +86 18221755073
Efficient lead-free flotation separation of malachite from …
Malachite (CuCO 3 ·Cu(OH) 2) is a significant copper oxide mineral, which is always found in the oxidized area of copper bearing ores [3]. As the main method for the separation and enrichment of malachite, froth flotation is widely used in the actual production [4]. The collectors are the key roles in the flotation process.
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Enhanced sulfidation xanthate flotation of …
EDS semi-quantitative analysis and XPS analysis show that malachite was easily sulfurized by sodium sulfide with ammonium ion. These results show that the addition of ammonium ion plays a...
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Froth flotation process and its application
Another application is separation of malachite and azurite ore using sulfidization flotation. Froth flotation cell [4] Schematic of Pneumatic Imhoflot G-cell [7]
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Floc-Flotation of Malachite Fines with an Octyl Hydroxamate …
Floc-flotation of malachite fines with an octyl hydroxamate and kerosene mixture was studied to improve the flotation recovery, using microflotation, microscopy image observations, contact angle measurements, and Extended Derjguin–Landau–Verwey–Overbeek (EDLVO) analysis.
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Sulfidization, Xanthate-Flotation of Malachite
minerals Article Reexamining the Role of Ammonium Ions in the Sulfidization, Xanthate-Flotation of Malachite Ruizeng Liu 1, Zhicheng Liu 2, Jianmin Li 3, Shunfu Ao 2, Bin Pei 1, Dianwen Liu 1,* and Jialei Li 1,* 1 Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China; liuruizeng@126 (R.L.); Peibin14@126 (B.P.)
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Enhanced sulfidation xanthate flotation of malachite …
EDS semi-quantitative analysis and XPS analysis show that malachite was easily sulfurized by sodium sulfide with ammonium ion. These results show that the addition of ammonium ion plays a...
WhatsApp: +86 18221755073
Mechanistic insights into stepwise activation of malachite …
Malachite is a common copper oxide mineral that is often enriched using the sulfidization–xanthate flotation method. Currently, the direct sulfidization method cannot yield copper concentrate products.
WhatsApp: +86 18221755073
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3 YRS Henan Fantai Machinery Equipment Co., Ltd. Contact supplier. COMPANY OVERVIEW Company Album. Basic Information. Selected products. Fast Speed Floor Wall Tile Making Machinery Normal New IBR Roof Sheet Roll Forming Machine. Galvanized Roofing Sheet Machine Double Layer Roll Forming Machinery tile making roofing sheet making machine.
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Floc-Flotation of Malachite Fines with an Octyl Hydroxamate …
With the depletion of copper sulfide minerals, malachite has attracted increasing interest. Since malachite is a relatively soft mineral, with a Moh's hardness of 3.5–4 [], fines are easily produced in the crush and grinding process.Froth flotation poorly responds to fine mineral particles, mainly because the collision efficiencies between fine particles and bubbles are low, …
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Floc-Flotation of Malachite Fines with an Octyl …
Floc-flotation of malachite fines with an octyl hydroxamate and kerosene mixture was studied to improve the flotation recovery, using microflotation, microscopy image observations, contact angle measurements, …
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Sodium trithiocarbonate as an activator for malachite …
The flotation performance of malachite was examined through flotation tests conducted using the XFG-II flotation machine located in Jilin, China. The flotation tank had a volume of 40 mL. The stirring speed remained constant at 1500 r/min, and 2 g of mineral samples were precisely measured and introduced into 40 mL of deionized water.
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Mechanistic insights into stepwise activation of malachite for
Malachite is a common copper oxide mineral that is often enriched using the sulfidization–xanthate flotation method. Currently, the direct sulfidization method cannot yield …
WhatsApp: +86 18221755073
Zhengzhou Huahong Machinery Equipment Co., Ltd.
Our company has two industrial plants of 10,000 square meters and we have 200 sets of large and medium-sized processing, welding and assembly equipment, with the maximum lifting capacity of 150 tons.
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Synthesis and application of dithiocarbamate oxadiazole …
Malachite undergoes hydration and exhibits a weak hydrophobicity in the pulp [11].At present, the sulfide-xanthate flotation method is the most popular flotation technology in malachite flotation process [12].The sulfidization flotation is a flotation method in which a sulfidizing agent is added to the pulp, and it encompasses several limitations such as …
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N-Alkylated Chitin Nanocrystals as a Collector in Malachite Flotation
The functionalized N-alkylated chitin nanocrystals possessed a hydrophobic character, were able to dress mineral particles and featured a performance in the flotation of malachite similar to commercial collectors, which proves the high potential of chitin nanocrystals in this field of application. KW - Chitin nanocrystals. KW - Flotation
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Sulfidization flotation performance of malachite in the …
The single mineral flotation results indicate that it may be possible to separate malachite from calcite by sulfidization-xanthate flotation. Hence we test the separation performance of malachite from calcite in the mixed malachite-calcite system and the result is shown in Fig. 2.It can be seen from Fig. 2 that calcite interferes with flotation of malachite and …
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Microscale exploration of the sulfidization flotation theory in malachite
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.
WhatsApp: +86 18221755073
New Insights into the Role of Thiol Collectors in Malachite Flotation
Malachite is one of the most important copper-bearing oxide minerals; however, it shows poor floatability prior to sulfidization under the thiol collector system. This study investigated the reasons for the low recovery of malachite flotation without sulfidization.
WhatsApp: +86 18221755073
Company Overview
3 YRS Henan Fantai Machinery Equipment Co., Ltd. Contact supplier. COMPANY OVERVIEW Company Album. Basic Information. Selected products. Fast Speed Floor Wall Tile Making …
WhatsApp: +86 18221755073
Zhengzhou Huahong Machinery Equipment Co., Ltd.
Our company has two industrial plants of 10,000 square meters and we have 200 sets of large and medium-sized processing, welding and assembly equipment, with the maximum lifting …
WhatsApp: +86 18221755073