Regeneration treatment method of smelting waste residue from limestone crusher
Life cycle assessment for waste acid treatment in zinc smelting
2022年11月1日 In the view of the technical bottlenecks and difficulties in the disposal of waste acid from traditional lime neutralization method in zinc smelting, a new method named 2020年6月3日 In this study, Zn/Cubearing smelting slag was recycled via an integrated acid dissolution and hematite precipitation method The slag was dissolved in nitric acid to generate Highpurity recycling of hematite and Zn/Cu mixture from waste 2018年12月1日 In the present study, the utilization of smelting byproducts such as red mud and ferronickel slag and mining wastes such as gold tailing and waste limestone were investigated Applicability of gold tailings, waste limestone, red mud, and 2023年5月26日 为探究用石 膏污泥替代石灰石进行冶炼造渣的可行性, 通过热力学计算和实验研究了石膏污泥以及冶炼条件对高 铅渣还原熔炼的影响。 结果表明: 石膏污泥中的硫酸钙会消耗 Utilization and detoxification of gypsum sludge by replacing
New methods of increasing the activity of limestone in
2011年7月30日 It is shown that sinter plants can preclean the limestone by drying it with hot waste gases from under the sinteringmachine grates and that it can then be recleaned by Thus, replacing limestone with gypsum sludge and returning it to the smelting furnace as flux can utilize the calcium source in the slag, while recovering Pb, Zn, and other metal ions [16−17] It Utilization and detoxification of gypsum sludge by replacing 2021年9月30日 In this work, Coagulationflocculationsedimentation (CFS) and multimedia filter (MMF) was used as the pretreatment processes UF, RO and concentration RO (CRO) Lead and Zinc Smelting Wastewater Treatment and Reclamation 2017年1月15日 In this work, a new innovative slag cleaning technique was presented to economically and environmentally friendly recover valuable metals from cobaltbearing copper Cotreatment of waste smelting slags and gypsum wastes via
LimestoneGypsum Wet Flue Gas Desulfurization Wastewater
2021年2月1日 In this paper, chemical precipitation process is used for the treatment of the desulfurization wastewater generated by the waste gas treatment system of the limestone 2020年2月18日 Limestone is a fundamental raw material in various industrial sectors It is formed due to biochemical precipitation of calcium carbonate, and further compaction over long periods of time(PDF) Environmental Hazards of Limestone Mining PDF On Jan 1, 2022, 波 于 published Progress in Treatment of ArsenicContaining Wastewater from Nonferrous Smelting Find, read and cite all the research you need on ResearchGate(PDF) Progress in Treatment of ArsenicContaining 2018年11月1日 Methods This study focuses on a typical zinc smelting enterprise in China, with the help of SimaPro 90 software, to compare and analyze the differences in direct, indirect, and overall Recovery of cobalt and zinc from the leaching solution of zinc smelting
(PDF) Reductivesulfurizing smelting treatment of smelter slag
2017年1月1日 Copper smelting slag is the largest solid waste produced in coppermaking process, and slow cooling beneficiation technology is the most widely used method in recovering remaining treasures from capacity increase, waste of valuable metals, and occupation of land resources The low content of valuable metals in gypsum sludge and the high cost of recovery make it difficult to realize industrialization [12−14]; metal lead smelting often needs to add limestone flux for the smeltingUtilization and detoxification of gypsum sludge by replacing limestone 2013年12月1日 The acid producing potential, the gross amount of heavy metals As, Cd, Pb, Zn and their leaching concentrations of Au smelting wastes from gold mining area were tested by acid neutralizing Solidification/stabilization treatment of gold mining waste residue2022年10月10日 In the solid waste synergism mode (Fig 1), which is based on the traditional smelting mode process, a new “volatilization kilnmultichamber furnace” process is added to address the large amount of tail residue generated in the silver flotation section and recover valuable components, such as Zn, Pb, and InAt the same time, solid waste that has not been Environmental impact of typical zinc smelting that implements
Smelting Studies for Recovery of Iron from Red Mud
high slag volume and alkali problem are the two bottlenecks of smelting operations High variability of red mud compositions from plant to plant also prevents the establishment of a welldefined red mud smelting process [9] Due to those factors, smelting part of red mud treatment still has important problems to be solved for2022年4月21日 Copper smelting slag is the largest solid waste produced in coppermaking process, and slow cooling beneficiation technology is the most widely used method in recovering remaining treasures from Cotreatment of Copper Smelting Slag and Gypsum Residue for 2011年6月1日 In the present study, the pyrite smelting slag was fully investigated Through experimental analysis, the environmental hazards of the waste residue have been discussed in order to identify the Study on Environmental Properties of the Waste Residues in Combined SAF Smelting and Hydrometallurgical Treatment of Bauxite Residue for Enhanced Valuable Metal Recovery Bengi Yagmurlu1, Gözde Alkan2, Buhle Xakalashe2, Bernd Friedrich3, Srecko Stopic4 Combined SAF Smelting and Hydrometallurgical Treatment of
Cotreatment of copper smelting slag and gypsum residue for
2022年8月1日 Gypsum residues are solid wastes in copper making processes, and about 150–380 Kg of gypsum residues are produced when producing 1 ton of copper (Liu et al, 2021; Yao et al, 2010) There are different kinds of gypsum residues in copper smelters, such as desulfuration gypsum residue and water treatment gypsum residue2021年2月26日 A potential industrial wastewaste cotreatment process was proposed and verified for the recovery of the valuable metals Co, Ni, and Cu from copper smelting slag by utilizing high temperature SO2 A potential industrial waste–waste cotreatment process of 2017年1月1日 In order to effectively recover metals such as Fe, Cr, and Ni from stainless steel dust, three possible smelting treatment methods are proposed and discussed in this articleThree different methods for smelting treatment of stainless steel 2017年1月15日 According to above tests, the optimum conditions for Cotreatment of waste smelting slags and gypsum waste via reductivesulfurizing smelting were obtained as follow: 12 wt% coke addition of smelter slag, 20 wt% sulfurizing agent CaSO 4 dosage, a smelting temperature of 1350 °C (1623 K), 3 h smelting durationCotreatment of waste smelting slags and gypsum wastes via
Life cycle assessment for waste acid treatment in zinc smelting
2022年11月1日 Lift cycle assessment (LCA) methodology was applied to evaluating and comparing two waste acid disposal processes in zinc smelting The results indicate that environmental impacts of gas—liquid vulcanization technologies are human toxicity, abiotic depletion potential, and global warming risk, which are mainly caused in neutralizing— 2022年11月1日 China has the largest output of steel and iron in the world (Zhang et al, 2022)In 2021, China's average annual pig iron output arrived at about 869 million ton (Stewart et al, 2021) and crude steel arrived at about 103 billion tons (Zhao et al, 2022)Meanwhile, the output of steel solid waste keeps at a high level and generally the production of one ton steel will generate Life cycle assessment of melting reduction treatment for iron and 2024年10月1日 The DW treated by the lime method results in a substantial amount of waste residue, which is typically disposed of in secure landfills However, these residues pose a dual challenge as they not only contribute to the pollution of valuable land resources but also contain significant levels of harmful heavy metals, including As, Cu, Zn, Cr, and Pb ( [39] ; Y [47] )Mineralogical insights into anion and cation dissolution behavior 2023年4月1日 For the purposes of resource conservation and pollution control, the proper disposal and recycling of waste LABs has attracted increasing interest [14]With the improper disposal of waste LABs, hazardous compounds and other chemicals will be released into the atmosphere, soil, and water [15]Meanwhile, electrolytes and heavymetal components will Recycling lead from waste leadacid batteries by the combination
Aging of bauxite residue in association of regeneration: a
2016年3月20日 Aggregate stability is a significant factor governing soil erosion resistance Bauxite residue has poor aggregate stability and is therefore a major consideration in terms of its regenerationBauxite residue , pig iron, reductive smelting, titanium, scandium 1 Introduction During the production of alumina from bauxite via the Bayer process, a byproduct is inevitably produced, namely bauxite residueA wide range of components are contained in bauxite residue, the major components generally include Fe, Al, Ca, Si, Ti and Na [1]Combined SAF Smelting and Hydrometallurgical Treatment of 2020年6月12日 Copper smelting opencircuit (CSO) dust contains various valuable metals, such as copper, lead, and zinc, as well as undesirable toxic elements such as arsenic Thus, the comprehensive recovery of valuable elements from CSO dust is highly significant from both economic and environmental perspectives In this review, pyrometallurgical, A Review of the Comprehensive Recovery of Valuable Elements 2016年10月1日 Incineration is the most common thermal method applied to treat generated municipal solid waste due to its ability to achieve volume and mass reduction of waste and energy recovery but this Thermal Plasma Treatment of Municipal Solid
Thermal Regeneration and Reuse of Carbon and Glass Fibers from Waste
2022年7月31日 This article aims to develop a method for regenerating and reusing carbon and glass fibers extracted from unrecyclable scraps of carbon plastics, printer parts, and laminating coating2023年7月31日 Spent automotive catalysts consist of platinum group metals (PGMs) in their leaching residue (LR) after wet extraction and are the leading secondary resource of PGMs Herein, PGMs were captured from the LR of spent automotive catalysts by NiSO4 smelting, followed by treatment with sulfuric acid to enrich PGMs from the trap The effects of the trap, Enrichment of Platinum Group Metals from Spent Automotive Currently, there is a limited amount of research on the smelting slag in general Zhang S et al has successfully developed highporosity ceramics and glass ceramics using smelting slag from the waste automobile catalyst [31]In addition, the Chinese invention patent also mentioned a method for recovering rare metals lanthanum, cerium, and zirconium from smelting prehensive recycling of slag from the smelting of spent 2019年9月3日 Industrially, the pyrometallurgical treatment of laterites is mostly accomplished with a wellestablished method, namely, the rotary kiln–electric arc furnace (RKEF) process, which includes (PDF) Nickel Laterite Smelting Processes and Some
Comprehensive recycling of zinc and iron from smelting waste
2020年8月1日 The comprehensive recycling of zinc and iron from smelting waste containing zinc ferrite (SWCZF) remains a challenge A study is to be the first proposed that hazardous SWCZF is directionally converted with SO 2 for simultaneous recycling of zinc and iron In the first step, zinc and iron phases in SWCZF were transformed into zinc sulfate and ferric oxide via oriented 2021年9月1日 Request PDF A promising regeneration of waste carbon residue from spent Lithiumion batteries via lowtemperature fluorination roasting and water leaching Recycling and reusing the waste A promising regeneration of waste carbon residue from spent 2017年8月21日 The treatment of tungsten residue generally includes the recovery of valuable metals (eg, scandium, tantalum, and niobium) and the solidification of toxic elements (eg, arsenic, lead, and (PDF) Extraction and Separation of Tin from TinBearing Secondary 2020年2月18日 Limestone is a fundamental raw material in various industrial sectors It is formed due to biochemical precipitation of calcium carbonate, and further compaction over long periods of time(PDF) Environmental Hazards of Limestone Mining
(PDF) Progress in Treatment of ArsenicContaining
PDF On Jan 1, 2022, 波 于 published Progress in Treatment of ArsenicContaining Wastewater from Nonferrous Smelting Find, read and cite all the research you need on ResearchGate2018年11月1日 Methods This study focuses on a typical zinc smelting enterprise in China, with the help of SimaPro 90 software, to compare and analyze the differences in direct, indirect, and overall Recovery of cobalt and zinc from the leaching solution of zinc smelting 2017年1月1日 Copper smelting slag is the largest solid waste produced in coppermaking process, and slow cooling beneficiation technology is the most widely used method in recovering remaining treasures from (PDF) Reductivesulfurizing smelting treatment of smelter slag capacity increase, waste of valuable metals, and occupation of land resources The low content of valuable metals in gypsum sludge and the high cost of recovery make it difficult to realize industrialization [12−14]; metal lead smelting often needs to add limestone flux for the smeltingUtilization and detoxification of gypsum sludge by replacing limestone
Solidification/stabilization treatment of gold mining waste residue
2013年12月1日 The acid producing potential, the gross amount of heavy metals As, Cd, Pb, Zn and their leaching concentrations of Au smelting wastes from gold mining area were tested by acid neutralizing 2022年10月10日 In the solid waste synergism mode (Fig 1), which is based on the traditional smelting mode process, a new “volatilization kilnmultichamber furnace” process is added to address the large amount of tail residue generated in the silver flotation section and recover valuable components, such as Zn, Pb, and InAt the same time, solid waste that has not been Environmental impact of typical zinc smelting that implements high slag volume and alkali problem are the two bottlenecks of smelting operations High variability of red mud compositions from plant to plant also prevents the establishment of a welldefined red mud smelting process [9] Due to those factors, smelting part of red mud treatment still has important problems to be solved forSmelting Studies for Recovery of Iron from Red Mud2022年4月21日 Copper smelting slag is the largest solid waste produced in coppermaking process, and slow cooling beneficiation technology is the most widely used method in recovering remaining treasures from Cotreatment of Copper Smelting Slag and Gypsum Residue for
Study on Environmental Properties of the Waste Residues in
2011年6月1日 In the present study, the pyrite smelting slag was fully investigated Through experimental analysis, the environmental hazards of the waste residue have been discussed in order to identify the