Recovery of Ni matte from Ni-bearing electroplating sludge

Wang, Hongyang; Liu, Yu; Jiao, Shuqiang; Chou, Kuo‐Chih; Zhang, Guohua

doi:10.1016/j.jenvman.2022.116744

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…Nikel laterit merupakan mineral logam hasil dari proses pelapukan dan pengayaan mineral pada batuan ultramafic yang mengakibatkan pengkayaan unsur Ni, Fe, Mn, Co secara residual dan sekunder (Wang et al, 2023). Nikel laterit dicirikan oleh adanya logam oksida yang berwarna cokelat kemerahan mengandung Ni dan Fe (Helvacı et al, 2017).…”

Section: Pendahuluanunclassified

“…Berdasarkan nilai hasil pengujian tersebut spent ore nikel yang dihasilkan tidak memberikan dampak negatif lingkungan, sehingga dapat dimanfaatkan untuk keperluan pertanian. Temuan ini diperkuatWang et al (2023) yang menyatakan bahwa sludge dan air limpasan yang dikelola dengan baik pada industri pengolahan nikel memiliki kandungan limbah yang aman bagi lingkungan. Nilai TSS yang rendah juga menunjukkan bahwa kualitas airnya sangat baik dan tidak mengakibatkan penurunan kualitas air di lingkungan sekitarnya apabila terkena air hujan dan masuk ke badan air permukaan.…”

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Teknologi Hijau Pengelolaan Bijih Nikel Laterit (Nickel Laterite Spent Ore Treatment “Green Technology”)

Maharani,

Muin

2023

JUTIN

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In pace with the rising output of electric vehicles, the nickel sector is still developing quickly. In 2022, Indonesia will manufacture 500,882.27 tons of ferro nickel, of which 197,758 tons, or 30.01%, will be able to be sold. Along with the growth of nickel mines comes technological advancements, one of which is the ability to manage wasted ore, a waste product of the nickel refining process. With the help of this study, used ore will be transformed into a useful product that can be used to control the environment. Laboratory scale testing, field scale tests, and toxicity tests (TCLP and LD50) are the techniques used. Testing for toxicity and planting on 14 tonnes of wasted ore, a byproduct of hydrometallurgical heap leaching. Limestone or a combination of biolite, agromax, and ND-201® were used to neutralize the spent ore and Fe residue composites during the process. This seeks to make the leftovers from the leaching process, the resulting runoff water, and the plants that can come from it edible. According to the test results, processed spent ore is a harmless substance that does not fall under the B3 waste category and may be utilized as an excellent planting medium for perennials and food plants. Based on BPOM quality criteria in Law No. 23 of 2017, the results of food laboratory testing revealed that food crops grown through the planting procedure utilizing discarded ore media were suitable for eating.

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Section: Pendahuluanunclassified

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Teknologi Hijau Pengelolaan Bijih Nikel Laterit (Nickel Laterite Spent Ore Treatment “Green Technology”)

Maharani,

Muin

2023

JUTIN

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“…Gao T r et al [ 18 ] proposed a sulphide roasting–flotation–magnetic separation technique to effectively recover copper, nickel, zinc, and iron from electroplating sludge. Wang H Y et al [ 19 ] proposed a new process incorporating a carbothermal reduction stage and a smelting stage for the effective recovery of nickel from nickel-containing electroplating sludge. Tang Z et al [ 20 ] explored the recovery of iron, chromium, and nickel from pickling sludge using coal-based metallurgical reduction.…”

Section: Introductionmentioning

confidence: 99%

Research on Resource Recovery and Disposal of Copper-Containing Sludge

Yu,

Zhou

2024

Materials

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Copper-containing sludge is a common by-product of industrial activities, particularly electroplating and metal processing. This type of sludge contains high concentrations of heavy metals such as copper, which can pose a potential threat to the environment. Therefore, its treatment and disposal require special attention. Due to its efficient mass and heat transfer characteristics, the suspended state technology has shown significant potential for application in a number of key processes, including the drying, decomposition, and reduction of copper-containing sludge. This paper presents an in-depth analysis of the current status of the application of the suspended state technology in the treatment of copper-containing sludge. Based on this analysis, a device for the treatment of copper-containing sludge in the suspended state was designed, through which the characteristics of copper-containing sludge in the oxidative decomposition and reduction phases are investigated. The research objects were gas concentration, temperature, contact state, and particle size time. Orthogonal experiments were initially employed to investigate the relationship between the influencing factors and the conversion rate of copper oxides. This was followed by a single-factor influence study, which led to the determination of the optimal process parameters for the decomposition experiments of the Cu-containing sludge in an oxidizing atmosphere. The 100 μm Cu-containing sludge was reacted with 10% O2 gas at a flow rate of 1 m/s for 3 min under the condition of 900 °C. The process parameters were then determined as follows: The research objects were gas concentration, temperature, contact state, and particle size time. Orthogonal experiments were employed to investigate the relationship between the influencing factors and the copper conversion rate. This was followed by a single-factor influence study, which determined the optimal process parameters for the copper-containing sludge reduction experiments. The 200 μm copper-containing sludge was reacted for 5 min at a flow rate of 7% carbon monoxide at a flow rate of 1.5 m/s under the condition of 800 °C.

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“…Human exposure to nickel can come from a variety of sources (air, water, and food). Improper handling of nickel-containing compounds can also harm the environment and waste resources [8]. How to recycle waste electrolytes, especially nickel, is an urgent problem in the process of nitrogen trifluoride industrialization.…”

Section: Introductionmentioning

confidence: 99%

High Value Conversion Technology of Nickel in Waste Electrolytes of Nitrogen Trifluoride by Electrolysis

Ren,

Ran,

Yang

et al. 2023

Separations

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The method of precipitation treatment of high-nickel waste electrolytic slag was studied, coupled with multi-step treatment to improve the recovery rate of nickel. In this study, HNO3 was used as dissolving agent, NaOH and Na2CO3 as precipitating agents, and the waste electrolytic slag was dissolved in the liquid phase and then precipitated. The results show that the electroslag with high nickel content can be completely dissolved under the optimal solid-liquid ratio of 1:10. When the pH of the leaching solution was adjusted to 7.5 by 5% NaOH solution, the iron removal rate could reach 99.3%. When the pH was adjusted to 11 with 5% Na2CO3, the nickel could be completely precipitated after standing, and the main component was basic nickel carbonate. The further recovery experiments show that high purity NiO can be obtained after the basic nickel carbonate is oxidized and calcined, and the average recovery rate of nickel is 92.4%. This study is of great practical significance to improve the treatment efficiency of the chemical precipitation method, reduce the operating cost of the chemical precipitation method, and reduce the production of secondary pollutants in the process of nickel recycling.

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Recovery of Ni matte from Ni-bearing electroplating sludge

Cited by 6 publications

References 21 publications

Teknologi Hijau Pengelolaan Bijih Nikel Laterit (Nickel Laterite Spent Ore Treatment “Green Technology”)

Teknologi Hijau Pengelolaan Bijih Nikel Laterit (Nickel Laterite Spent Ore Treatment “Green Technology”)

Research on Resource Recovery and Disposal of Copper-Containing Sludge

High Value Conversion Technology of Nickel in Waste Electrolytes of Nitrogen Trifluoride by Electrolysis

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