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recovery nickel ep1325165b1
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US6428604B1
US6428604B1 - Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate - Google Patents
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Recovery of nickel and water from wastewater with …
Owing to its precious value and high toxicity, nickel recovery from wastewater is a worthwhile work. However, the concentration of Ni 2+ varies from tens to thousands of mg/L due to different wastewater sources, no process can simultaneously meet the requirements of metal recovery and water reuse, both for high concentration …
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High-efficiency nickel recovery from spent electroless nickel …
The widespread use of electroless nickel plating inevitably leads to substantial discharge of spent electroless nickel plating solution (SENPS), which poses a serious threat to the environment. It remains highly challenging to efficiently treat SENPS, as it mostly contains organic nickel complexes that have
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Timothy Nickel
View Timothy Nickel's profile on LinkedIn, a professional community of 1 billion members. ... Tri-State Asset Recovery + Tri-State Electronics Recycling Oct 2021 - Sep 2024 3 years.
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Recent Progress in Hydrometallurgical Processing of Nickel …
Most of the laterite contains 0.7 to 1.84 wt% of Ni, and recovery with leaching in all the cases is more than 85%. Recovery is more than 90% for laterite with more than 1% nickel content irrespective of mineralogy. Table 12 explains that atmospheric leaching shows less nickel recovery with sulfuric acid leaching than with NAPL. Hence, …
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Electrooxidation of nickel-ammonia complexes and …
The Effect of current density on nickel ions recovery and ammonia removal was investigated. As shown in Fig. 1 (a), corresponding to the current density of 8 mA/cm 2, 16 mA/cm 2, 24 mA/cm 2, 32 mA/cm 2 and 40 mA/cm 2, the recovery percentage of nickel ions are 29.14%, 77.83%, 90.12%, 98.26% and 99.03% after a 180 min reaction. The …
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Nickel recovery/removal from industrial wastes: A review
This paper summarized removal and recovery of nickel as based on recent literature. The main physico-chemical technologies for heavy metal elimination from …
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Driving nickel recovery
Nickel in EV batteries is recycled at a rate of below 5 percent presently. As electric vehicles become more common, recycling will be an important factor for nickel supply. Additionally, nickel pig iron is a cheaper and lower grade alternative to primary nickel used to make stainless steel, and it is used to produce stainless steel in China.
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Assessing the effectiveness of a biological recovery of nickel …
Research highlights Bacillus subtilis is a neutrophile bacterium, showing capacity in this study to mobilise nickel from tailings at neutral pH. It could therefore be suitable for recovery of residual precious metals from tailings without risk of effluent acidification, providing therefore an ecofriendly and cost advantages. Study of the …
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Recovery of nickel oxide from spent catalyst
Invascanu and Roman [1] studied the recovery of nickel from a spent catalyst in an ammonia plant by leaching it in sulfuric acid solution. Ninety-nine percent of the nickel was recovered as nickel sulfate when the catalyst, having a particle size of 0.09 mm, was dissolved in an 80% sulfuric acid solution for 50 min in at 70°C. ...
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Recovery of Nickel and Cobalt from a Low Grade Laterite …
This study focused on the development of hydrometallurgical process which allows the nickel (Ni) and cobalt (Co) recovery from a low grade laterite ore. The developed process consists of two main stages: leaching and precipitation. In the first stage, an appropriate leach liquor which contains a relatively high nickel and cobalt …
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Recovery of Vanadium and Nickel from a High CaCO
In this study, it was aimed to extract vanadium (V) and nickel (Ni) from a petroleum coke ash (PCA) using a roasting process without additives, followed by leaching with sulfuric acid (H2SO4). The experiments were designed based on the Taguchi approach, taking into account the parameters of temperature, acid concentration, time, and solid ratio. …
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Nickel/Cobalt Recovery
Recover nickel and cobalt from a variety of feeds including E-Waste, metal scrap, Nickel by-products, batteries, refinery bleeds, and more. +1.604.988.0058; ... and why the recovery of nickel and nickel recycling is becoming increasingly significant in our consumer-based society. The efficiency of electrowinning any metal, including Nickel or ...
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Separation and recovery of cobalt and nickel from end of life …
Zhang et al. (2020) developed a selective process for the recovery of Ni from ammoniacal leach liquor of spent Ni–Mo–Al 2 O 3 catalyst. A solution containing …
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Sustainable Developments in the Nickel Recovery Process
The process involves four major operations: removal of copper, recovery of sulfuric acid, removal of impurities, and recovery of nickel (Fig. 6). In the first stage, electrolyte is withdrawn from the electrorefining tanks in the tankhouse and the copper is removed in electrolytic cells using insoluble anodes and copper start sheets.
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WO2002024966A1
WO2002024966A1 - Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid - Google Patents ... Priority to EP01909372A priority Critical patent/EP1325165B1/en Priority to CA002376883A priority patent/CA2376883C/en
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Selective nickel recovery from iron-rich solutions
(2018). Selective nickel recovery from iron-rich solutions. Separation Science and Technology: Vol. 53, No. 3, pp. 559-566.
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Find your BitLocker recovery key
A BitLocker recovery key is needed when BitLocker can't automatically unlock an encrypted drive in Windows. This key, which is a 48-digit number, is used to regain access to the drive. You might be prompted for the BitLocker recovery key during startup, due to a security risk or hardware change:
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Recovery of Nickel from Spent Nickel Catalyst | India …
High purity alumina is produced from the process as a part of the leached residue. A smelting process is also developed for recovery of nickel as ferronickel from a variety of spent catalysts containing nickel in the range 8-25%. Various grades of ferronickel with a nickel content in the range of 20% to 80% have been produced.
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Recent Progress in Hydrometallurgical Processing of Nickel …
Recovery is more than 90% for laterite with more than 1% nickel content irrespective of mineralogy. Table 12 explains that atmospheric leaching shows less …
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Recovery of nickel, cobalt and rare-earth elements from spent nickel …
Recovery of nickel and cobalt as MS simplifies the process and reduces cost of wastewater treatment in recycling. In the laboratory test, the sulfide precipitation reaction was carried out by adding a sulfidizing agent to the clarified leach solution after rare-earth removal in a Pyrex beaker, while stirring the mixture at 650 rpm. ...
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EP3190195A4
EP3190195A4 EP15831422.9A EP15831422A EP3190195A4 EP 3190195 A4 EP3190195 A4 EP 3190195A4 EP 15831422 A EP15831422 A EP 15831422A EP 3190195 A4 EP3190195 A4 EP 3190195A4 Authority EP European Patent Office Prior art keywords recovery method nickel recovery nickel recovery Prior art date Legal …
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Intensification of nickel recovery from water using an …
The efficiency of CEP and ED for Ni(II) removal was expressed in terms of recovery rate and concentration factor. In CEP process, recovery rates of 99% were found with a 40 ppm Ni(II) concentration and an applied current density of 2 mA.cm-2 resulting in an outlet Ni(II) concentration lower than 1 ppm, against 73.69% in conventional ED ...
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Sustainable Developments in the Nickel Recovery …
recovery of the nickel through nickel carbonation reactors. The nickel sulfate plant was successfully transformed to the nickel carbonate plant, as shown in Fig. 5. The process …
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Innovative technology and mechanism for comprehensive recovery …
The grade and recovery of copper in the mixed concentrate obtained by flotation were 2.377 % and 83.73 %, and the grade and recovery of nickel were 10.28 % and 85.00 %. By magnetic separation test of the flotation tailings, iron concentrate with iron grade and recovery of 73.77 % and 12.41 % was obtained.
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Effective recovery of Ni and Cu from low-grade nickel …
In order to determine the optimal process parameters of extracting metal from nickel concentrate by NaCl roasting and the primary and secondary factors affecting metal conversion in the roasting process, an L 9 (3 4) orthogonal experiment with four factors and three levels was designed by an orthogonal design assistant software.The experimental …
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Nickel Recovery
Examples include copper and nickel recovery from metal finishing processes; the recovery of oils, fats, and plasticizers by solvent extraction from filter media such as activated …
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Recovery of nickel and molybdate from ammoniacal leach …
The unprecipitated nickel in the strip liquor increases from 0.357 g/L to 0.413 g/L and then decreases to 0.248 g/L. The nickel stripping ratio (Total nickel amount of precipitation and strip liquor) increases gradually and then changes little following addition of oxalic acid concentration.
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Nickel Institute
Events. Battery Day 2024! Join us virtually on 18 September 2024, for the second Nickel Institute Battery Day. Learn more
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Enhanced photoelectrocatalytic oxidation of hypophosphite …
Carbon aerogel (CA) cathode was adopted to an undivided-chamber photoelectrocatalytic system with TiO 2 nanotube arrays (TNA) photoanode to enhance the oxidation of hypophosphite (H 2 PO 2 −) and simultaneous recovery of metallic nickel (Ni).Both the efficiencies of H 2 PO 2 − oxidation and Ni recovery were significantly …
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Nickel Waste Recovery
Contact Us. RG Recycling Group Ltd 631 Warwick Road Solihull B91 1AR. Email: info@rgrecyclinggroup Tel: +44 (0)121 709 5371. Enquiry. Your Name . Your Email* (required)
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Recovery Logam Nikel Dari Spent Katalis Nio/al2o3 Dengan …
From the leaching results was known that the higher temperature and processing time, the recovery of nickel will be higher. The results showed that the optimum conditions leaching process was at a concentration of 2 M ammonium carbonate, with temperature was 60°C for 5 hours, and the ratio S/L was 20 g/L, resulting leaching percentage of 29.31 ...
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Nickel recovery from spent nickel-metal hydride batteries using …
Spent nickel metal hydride (Ni-MH) batteries are considered to be possible sources of Ni recovery and recycling, and have been the object of some scientific investigations. This recovery is also important from environmental perspective, as disposal of the waste batteries constitute a significant release of Ni to the environment.
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Recovery of nickel in the form of Ni (OH)
1. Introduction. Nickel (Ni) is considered an important plated metal in the plating industry owing to its excellent corrosion resistance. Approximately 62% of the Ni in wastewater is generated by the plating industry (Salcedo et al., 2016).During the plating process, ethylenediaminetetraacetic acid (EDTA) is often used to achieve uniform …
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Recovery of Nickel from Spent Ni/Al2O3 Catalysts using …
leaching and chelation technique. The recovered nickel salts can be recycled for the preparation of fresh catalysts and promises to be a good industrial process for handling 1-2 t per batch of spent nickel catalyst. Keywords: Spent catalyst, ultrasonication, chelation, leaching, nickel recovery. Introduction
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Nickel recovery/removal from industrial wastes: A review
1. Introduction. Nickel (Ni) a silver white, hard and ductile metal, is the 24th most abundant element in the Earth's crust having an estimated concentration of 0.008% (Kerfoot, 2005).Ni has an atomic number of 28 with electron configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 8 4s 2 and atomic mass of 58.71. It occurs in the periodic table in group 10, …