Reaction behaviors of pb and zn sulfates during reductionreaction behaviors of pb and zn sulfates during reductionResults showed that the maximum recoveries of zn and fe could reach 6138 and 809 respectively to enhance the decomposition of zn ferrite our team designed a rotary kiln and used coal gas as, zinc ferrites treated in a rotary kiln in zhou zhu

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zinc ferrites treated in a rotary kiln in zhou zhu. FOB Reference Price:Get Latest Price. Effect of La Content on Inclusions and Microstructure of C–Mn SteelTreatedBy Ti–Mg–Ca. Pages 455-464. ... to Quantify the Effect of Temperature and Rotational Speed on the Decrepitation of South African Manganese Oresin a Rotary Kiln. Pages 811-821

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Dec 20, 2019 Rotary kiln volatilization method as a main pyrometallurgy process was used to treat zinc leaching residue (Wei et al., 2012). Pyrometallurgical process is mature, but Pb recovery ratio is low, energy consumption is high, smoke is high, and other valuable metals are not recovered

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The present invention discloses a method for treating zinc hydrometallurgy waste residue by using an alkali ammonium sulfur coupling method, relates to a method for comprehensive utilization of lead silver residue and iron alum residue in zinc hydrometallurgy waste residue by using a alkali ammonium sulfur coupling clean metallurgical method, and belongs to the field of metallurgical hazardous

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Corpus ID: 112673886. Effect of Temperature on Pyrolysis Products of a Pine Sawdust in an Indirectly Fired Rotary Kiln @inproceedings{Zhu2013EffectOT, title={Effect of Temperature on Pyrolysis Products of a Pine Sawdust in an Indirectly Fired Rotary Kiln}, author={M. Zhu and Wenxu Zhou and Zhezi Zhang and J. Li and Dongke Zhang}, year={2013} }

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Corpus ID: 112673886. Effect of Temperature on Pyrolysis Products of a Pine Sawdust in an Indirectly Fired Rotary Kiln @inproceedings{Zhu2013EffectOT, title={Effect of Temperature on Pyrolysis Products of a Pine Sawdust in an Indirectly Fired Rotary Kiln}, author={M. Zhu and Wenxu Zhou and Z. Zhang and J. Li and D. Zhang}, year={2013} }

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It is seen in Figure 1 that the main phases in the residues are iron hydroxide, zinc hydroxide, goethite, and jarosite. By examination of the zinc calcine leaching process in zinc metallurgy, lead in the residues is thought to exist as lead sulfate [].Coke powder (Shaanxi Longmen Steel, China) with particle size less than 76 μm was added to the residues as reducing agent

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Zhu et al. proved that the efficiency of zinc removal was controlled by the Jander three-dimensional diffusion, and the diffusion activation energy for zinc removal of the Zn-bearing dust pellets was 299.97 kJ/mol at 1323–1473 K. Wang et al. studied the evaporation kinetics of lead in carbon-containing pellets between 1373 K and 1573 K. The

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Apr 15, 2017 Waelz kiln: 1150–1200: Rotary kiln: Coal, lime/sand, natural gas, air: Crude zinc oxide and Fe-slag (waste) Commercial: 40–250: Piret, 2012: RHF: 1250–1300: Rotary hearth furnace: Coke, binder, and natural gas: Crude zinc oxide and DRI/hot briquetted iron (HBI) Commercial: 100–300: Nakayama and Taniishi, 2011: PRIMUS: 1000–1100

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Jun 03, 2021 A large amount of dust is formed as one of the primary by-products during the blast furnace ironmaking process. Besides iron and carbon, it contains a variety of valuable metals such as zinc, lead, and indium widely applied in many industry fields. However, it is difficult to recycle and reutilize blast furnace dust (BFD) due to complex composition, fine particle size, and strong hydrophobic

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Taotao Zhou, Peng Zhao, Taohong Ye, Minming Zhu, Changfa Tao. Article 118453 Download PDF. ... select article Zinc concentrate internal circulation technology for elemental mercury recovery from zinc smelting flue gas. ... select article The effect of sulfur content of rotary kiln fuel on the composition of nickel laterite calcine. https://doi

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Editors: Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A: Publisher: Flogen Star OUTREACH: Publication Year: 2016: Pages: 480 pages: ISBN: 978-1-987820-46-1

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Ordinary Portland cement (OPC) is a traditionally used binder in backfilling S/S processes, but in the production of clinker, the raw materials need to be calcined in a rotary kiln at temperatures up to 1500 C, leading to abundant emissions of CO 2 in the process of decomposing the calcium carbonate into calcium oxide (CaO) and CO 2

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