MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Polishing powder waste
Review and test on rare earths recovery from polishing powder
4 天之前 Rare earth polishing powder has gained widespread usage in the surface polishing of highprecision materials, exhibiting an annual growth rate exceeding 10% However, a 2024年11月1日 A novel technology for the direct conversion of rare earth polishing powder waste into recycled rare earth polishing powder Enhanced the rare earth recovery rate to over Investigation into the purification and regeneration of rare earth 2024年7月2日 Large quantities of hazardous ceriabased polishing powder waste (CPPW) are produced worldwide each year, much of which unfortunately ends up in landfills, causing waste of rareearth resources and harm to the KilogramScale Recovery of La/Ce and Regeneration of 2021年8月1日 This paper reviews processes for the recovery of rare earths from polishing waste Glass polishing powder waste can be reused via physical, physicochemical or Review of rareearths recovery from polishing powder waste
Review of rareearths recovery from polishing powder waste
Investigation into the purification and regeneration of rare earth polishing powder waste via continuous solidphase conversion Kai Gao Xingyu Liu +5 authors Weihua Guan2020年4月18日 In this study, cerium ion recovery from glass polishing powder waste using green solvents for extraction was investigated Reaction time, temperature, organic to Enhancing Cerium Recovery from Leaching Solution of Glass Abstract: With the wide application of rare earth polishing powder in glass polishing and other industries, the amount of waste and invalid rare earth polishing powder has been increasing 从废旧稀土抛光粉中回收稀土研究新进展4 天之前 Rare earth polishing powder represents a novel type of polishing powder that is extensively employed in the polishing procedure to achieve exceptionally smooth surfaces and Review and test on rare earths recovery from polishing powder
从抛光废料中回收稀土
Using rare earth polishing powder waste as raw material, an orthogonal experimental design was used to convert rare earth oxides into sulfates by first conducting roasting experiments of the waste with a mixture of ammonium 2016年8月26日 Recovery of rare earth from the waste rare earth polishing powder is of great importance to improve the process economics The current recovery methods result in the generation of large quantities Optimization of recovering cerium from the waste 2017年4月1日 DOI: 101515/gps20160030 Corpus ID: ; Optimization of recovering cerium from the waste polishing powder using response surface methodology @article{Lu2017OptimizationOR, title={Optimization of recovering cerium from the waste polishing powder using response surface methodology}, author={Shuaidan Lu and ShuChen Sun and Optimization of recovering cerium from the waste polishing powder 2023年1月15日 Ceriabased rare earth polishing powder is widely used in polishing optical glass, semiconductors and ceramics because of its excellent polishing properties such as highprecision, mechanical strength and wear resistance etc [1]However, the buildup of impurities, eg, Al, Ca and Si, and the change of morphology during polishing gradually deteriorate the Coordinationenhanced extraction of rare earth metals from waste
Test research on effects of waste ceramic polishing powder on
2015年1月15日 Waste ceramic polishing powder is a type of waste produced during grinding and polishing of ceramic tiles In the process of grinding and polishing, a thickness of 05–07 mm is usually removed from the surface of green blanks, and sometimes up to 1 ~ 2 mm in case a big sintering deformation occurs []Polished ceramic tiles, as one of the key ceramic products used 2011年4月3日 The decomposition reaction process of waste rare earth (RE) polishing powder was monitored in real time by the thermogravimetry–differential thermal analysis (TG–DTA) and Fourier transform infrared spectroscopy (FTIR) The results showed that the reaction was divided into two stages, and the thermal weight losses got to stable when the temperature was more Decomposition process and kinetics of waste rare earth polishing powder 2022年10月1日 Our research group combines waste CeLa 2 O 3 F 3 polishing powder instead of pure rare earth with ferroferric oxide to prepare the magnetic composite material PP@CMIO for phosphorus adsorption, indicating that the material is easy to be separated from the water by external magnetic field with only 5372 mg/g adsorption capacity, but the Magnetized vermiculite loaded with waste polishing powder to 2021年8月1日 Through the studies on the recycling of waste rare earth polishing powder, it was found that when using concentrated sulfuric acid as leaching agent, sulfuric acid to waste polishing powder 15 Review of rareearths recovery from polishing powder waste
A BRIEF REVIEW ON RECOVERY OF CERIUM FROM GLASS POLISHING WASTE
2017年4月3日 Here, La and Ce were leached from waste polishing powder by using nitric acid, and the Ce, La, and total REE recovery rates were approximately 100%, 833%, and 964%, respectively2019年3月18日 The glass polishing powder waste was generated from polishing the glass panel using the ceriabased abrasive which had a particle size distribution of D 10 = 0099 μm, D 50 = 0609 μm, D 90 = 3901 μm The chemical composition of the glass polishing powder waste is shown in Table 1Separation of ultrafine ceriabased abrasive particles from glass Download Citation On Oct 1, 2023, Yang Li and others published Separation of La/Ce in rare earth polishing powder waste via TwoStage hydrochloric acid leaching and corresponding leaching Separation of La/Ce in rare earth polishing powder waste via 2020年9月1日 1 Introduction Ceriabased (CeO 2) rare earth polishing powder (REPP) is an excellent polishing material, which is widely used in fine polishing processes of precision optical glass, semiconductors or ceramics due to its unique polishing properties 1, 2, 3 Because of its strong cutting force, short polishing time, high polishing accuracy and low pollution, it is known Kinetics study on leaching of rare earth and aluminum from polishing
Efficient processing rare earth polishing powder solid waste by
Download Citation On Nov 1, 2023, Chen Lin and others published Efficient processing rare earth polishing powder solid waste by thioureaH2SO4 system: Process optimization and thiourea 2024年11月1日 This study focuses on rare earth polishing powder waste generated by Bourne Optical (Huizhou) Co, Ltd, a leading global manufacturer of mobile phone cover glass, yielding up to 6,000 tons of REPPW annually Fig 1 depicts the REPPW sample utilized in the investigationInvestigation into the purification and regeneration of rare earth 2017年4月1日 22 Experimental methods In this work, an extracting process was designed, as demonstrated in Figure 2As cerium was found in waste polishing powder in the form of cerium oxide, which is insoluble in water, common acid (except for concentrated sulfuric acid) and alkali solution, to extract cerium from rare earth polishing powder the Ce(IV), must be reduced to Optimization of recovering cerium from the waste polishing powder 2024年2月1日 Rare earth polishing powder waste (REPPW) is a Licontaining rare earth solid waste generated from glassceramic polishing processes The key to its valueadded recycling is selective extraction of Li and rare earth elements (REEs), however, only REEs recovery were addressed in conventional recycling processesRare earth dissolution from polishing powder waste in H
The Leaching Technology of Rare Earth Polishing Powder Waste
2021年11月15日 The solubility of Ce(Ⅲ) is far greater than that of Ce(Ⅳ) Thus, the thiourea was used to reduce Ce(Ⅳ) into Ce(Ⅲ) in dilute hydrochloric acid solutions to promote the recovery of rare earth oxides from a rare earth polishing powder waste The effects of leaching temperature, leaching time, liquidtosolid ratio (L/S), hydrochloric acid concentration and 2017年4月1日 22 Experimental methods In this work, an extracting process was designed, as demonstrated in Figure 2As cerium was found in waste polishing powder in the form of cerium oxide, which is insoluble in water, common acid (except for concentrated sulfuric acid) and alkali solution, to extract cerium from rare earth polishing powder the Ce(IV), must be reduced to Optimization of recovering cerium from the waste polishing powder 2021年3月1日 Here, La and Ce were leached from waste polishing powder by using nitric acid, and the Ce, La, and total REE recovery rates were approximately 100%, 833%, and 964%, respectivelyEnhancing Cerium Recovery from Leaching Solution of Glass Polishing 2018年10月6日 Ceria is the main component in glass polishing powders due to its special physicochemical properties Glass polishing powder loses its polishing ability gradually during usage due to the accumulation of other compounds on the polishing powder or due to changes in the particle size distribution The recovery of cerium from the glass polishing waste results in Recovery of Cerium from Glass Polishing Waste: A Critical Review
Coordinationenhanced extraction of rare earth metals from waste
2023年1月15日 Rare earth polishing powder waste (REPPW) is a Licontaining rare earth solid waste generated from glassceramic polishing processes The key to its valueadded recycling is selective extraction of Li and rare earth elements (REEs), however, only REEs recovery were addressed in conventional recycling processes2022年10月1日 Download Citation Magnetized vermiculite loaded with waste polishing powder to recover phosphorus in waste water In view of the phosphorus pollution in water bodies and the shortage of Magnetized vermiculite loaded with waste polishing powder to 2019年3月18日 @article{Wang2019SeparationOU, title={Separation of ultrafine ceriabased abrasive particles from glass polishing powder waste through liquid–liquid–powder extraction}, author={Li Pang Wang and Yan Jhang Chen and Yu Hua Jiang and Yun Chen Tso}, journal={Separation and Purification Technology}, year= {2019 Separation of ultrafine ceriabased abrasive particles from glass 2021年8月1日 Rareearth polishing powder, mainly composed of cerium oxide (CeO 2), is known as “the king of polishing powders” (Hu et al, 2019)Owing to its high hardness (similar to that of glass), uniform particle size, and superior polishing properties, rareearth polishing powders are the most prevalent polishing powders in fine polishing processes of precision Review of rareearths recovery from polishing powder waste
Recovery of Cerium from Glass Polishing Waste: A Critical Review
Ceria is the main component in glass polishing powders due to its special physicochemical properties Glass polishing powder loses its polishing ability gradually during usage due to the accumulation of other compounds on the polishing powder or due to changes in the particle size distribution The recovery of cerium from the glass polishing waste results in the efficient DOI: 101016/JRESCONREC2021 Corpus ID: ; Review of rareearths recovery from polishing powder waste @article{Wu2021ReviewOR, title={Review of rareearths recovery from polishing powder waste}, author={Yufeng Wu and Minwei Song and Qijun Zhang and Wei Xiao Wang}, journal={Resources Conservation and Recycling}, year={2021}, Review of rareearths recovery from polishing powder waste2003年1月1日 In this study, the separation of rare earths and aluminium from the dried powder of waste cerium polishing slurry was investigated Since cerium oxide, 40% of rare earths, is the most stable state Separation of Rare Earth and Aluminium from the Dried Powder of Waste 2020年9月1日 In this study, a novel hydrometallurgical process consisting of hydrochloric acid threestage countercurrent leaching and solvent extraction was proposed to recover rare earth oxide (REO) from the rare earth polishing powder waste (REPPW) The effects of HCl concentration, liquid–solid ratio (L/S ratio), temperature and time on the leaching yields of rare Kinetics study on leaching of rare earth and aluminum from polishing
Coordinationenhanced Extraction of Rare Earth Metals from Waste
2022年9月1日 Efficient and environmentalfriendly recycling of rare earth polishing powder waste (REPPW) is imperative not only to ecological wellbeing but also to sustainability of critical rare earth resources2020年12月1日 A new approach to recover lanthanum and cerium from rare earth polishing powder wastes has been developed in this study Lanthanum and cerium oxides in the raw materials were converted to sulfate Recovery of lanthanum and cerium from rare earth polishing powder Abstract: This is an essay in the field of metallurgical engineering Using rare earth polishing powder waste as raw material, an orthogonal experimental design was used to convert rare earth oxides into sulfates by first conducting roasting experiments of the waste with a mixture of ammonium sulfate and ammonium bisulfate从抛光废料中回收稀土2021年4月1日 Kinetics study on leaching of rare earth and aluminum from polishing powder waste using hydrochloric acid Wu Xitao Wang Zhijian +5 authors Shengzhong Xie Materials Science, Chemistry 2020; 19 SaveRecovery of lanthanum and cerium from rare earth polishing powder
Decomposition process and kinetics of waste rare earth polishing powder
2012年7月1日 The decomposition reaction process of waste rare earth (RE) polishing powder was monitored in real time by the thermogravimetry–differential thermal analysis (TG–DTA) and Fourier transform 2018年9月30日 Glass polishing powder waste can be reused via physical, physicochemical or chemical processes by removing silica and/or alumina The removal of silica and/or alumina only improves the life span Recovery of Cerium from Glass Polishing Waste: A 2021年4月15日 Rare earth (RE) polishing powders, usually consist of cerium oxide (CeO 2), have a variety of applications in glass, semiconductors, ceramics and precise instrument polishing processes because of their excellent polishing properties [1], [2]A lot of studies have shown that the performance of RE polishing powder are related to the content of CeO 2 whose structure is Recovery of lanthanum and cerium from rare earth polishing powder 2019年10月1日 Among the ceramic wastes, the ceramic polishing waste (CPW) generated during polishing of ceramic products is a powder Herein, the CPW is added as paste replacement This would reduce the amount of ceramic waste to be dumped, and the cement consumption and carbon footprint of the concrete productionReutilizing ceramic polishing waste as powder filler in mortar to
Separation of Cerium Oxide Abrasive and Glass Powder in an
2020年6月8日 Applying a cerium oxide abrasive to polish glass components generates a polishing waste containing the cerium oxide abrasive and the glass powder produced during polishing This research applied the liquid–liquid–powder extraction method to separate the cerium oxide abrasive and the polished glass powder in an abrasiveglass polishing waste for 2023年12月1日 @article{Chen2023RareED, title={Rare earth dissolution from polishing powder waste in H2O2H2SO4 system: Condition optimization and leaching mechanism}, author={Lin Chen and Xia He and Xiaona Dang and Xingcang Wang and Weifeng Liu and Duchao Zhang and Tianzu Yang}, journal={Hydrometallurgy}, year= {2023 Rare earth dissolution from polishing powder waste in H2O2 Abstract: With the wide application of rare earth polishing powder in glass polishing and other industries, the amount of waste and invalid rare earth polishing powder has been increasing year by year Rare earth is an indispensable and nonrenewable resource It has become inevitable to recover it from its waste and invalid polishing powder从废旧稀土抛光粉中回收稀土研究新进展2024年2月1日 After physical and chemical polishing, the polishing property of rare earth polishing powder would decrease rapidly as the accumulation of impurities (mainly SiO 2, Al 2 O 3, CaO) and particle size distribution (PSD) change [1] Several studies show that the rare earth polishing powder waste is mainly composed of La, Ce, Si, Al and F [1], [2]Separation of La/Ce in rare earth polishing powder waste via
Study for Recycling of CeriaBased Glass Polishing Powder
2000年4月1日 Their investigations dealt with an alkaline treatment of a polishing powder waste containing about 221% CeO 2 , 178% La 2 O 3 and almost 25% Al 2 O 3 together with 126% SiO 2 as impurities