Leaching of High Arsenic Content Dust and a New Process for the Preparation of Copper Arsenate

• Autorzy: Sheng W. , Shen Y.-Y. , Sheng-Quan Z.

Identyfikatory

DOI

10.24425/123789

• Języki publikacji: EN

Abstrakty

EN

In this research, the high arsenic content dust of copper smelting, as a raw material, the extraction of copper and arsenic from the high arsenic content dust in the leaching system containing acidic and alkaline compounds was investigated. Meanwhile, the effects of acid/alkaline initial concentration, liquid to solid ratio, leaching temperature, leaching time on the leaching rate of copper and arsenic were studied. The optimum conditions for the leaching of high arsenic content dust and preparation of copper arsenate were determined. The results showed that acidic/alkaline leaching of high arsenic content dust was particularly effective. 93.2% of the copper, and 91.6% of the arsenic were leached in an acidic leaching process and 95% of the arsenic, while less than 3% of the copper, less than 5% of the antimony, less than 2% of the bismuth was also leached in an alkaline leaching process. A new method (the parallel flow drop precipitate method) was developed in the synthesis of copper arsenate process. The parallel flow drop method was employed to adjust the molar ratio (copper to arsenic) of the mixed solution of the acid-leaching solution and the alkali-leaching solution by taking the drop acceleration of an acidic leaching solution and an alkaline leaching solution at 10 mL/min and 12 mL/min, at a temperature of 60°C and a reaction time of 1h. Copper arsenate was prepared by mixing an acidic leaching solution and an alkaline leaching solution. The main phases of copper arsenate were CuHAsO₄·1.5H₂O and Cu₅As₄O₁₅·9H₂O. Copper arsenate contained 30.13% copper and 31.10% arsenic.

Słowa kluczowe

EN

high-arsenic dust; acidic leaching; alkaline leaching; copper arsenate; comprehensive utilisation of esources

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1167--1172
• Opis fizyczny: Bibliogr. 20 poz., tab., wykr., wzory

Twórcy

autor

Sheng W.

• Lanzhou University of Technology, State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou 730050

autor

Shen Y.-Y.

• Lanzhou University of Technology, State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou 730050

autor

Sheng-Quan Z.

• Lanzhou University of Technology, State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou 730050

Bibliografia

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Uwagi

EN

1. Joint fund between Shenyang National Laboratory for Materials Science and State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals (18LHZD001) to LEACHING OF HIGH ARSENIC CONTENT DUST AND A NEW PROCESS FOR THE PREPARATION OF COPPER ARSENATE.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).