Physicochemical Problems of Mineral Processing最新文献_第7页

The relationships between the kinetic grinding parameters with interstitial fillings and the liberation degree of a chromite ore 含间隙充填物的动力学磨矿参数与铬铁矿释放度的关系

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-13 DOI: 10.37190/ppmp/168254

Y. Umucu, V. Deniz, Yaşar Hakan Gursoy, Işıl Tokcan, Zeyni Arsoy

引用次数: 0

Recovery of base and precious metals from scrap TV boards using zig-zag air separator 用锯齿形空气分离器从废电视板中回收贱金属和贵金属

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-13 DOI: 10.37190/ppmp/168255

E. Y. Yazici, O. Celep, Boulama Omar Yacine Lawan Ibrahim, H. Deveci

{"title":"Recovery of base and precious metals from scrap TV boards using zig-zag air separator","authors":"E. Y. Yazici, O. Celep, Boulama Omar Yacine Lawan Ibrahim, H. Deveci","doi":"10.37190/ppmp/168255","DOIUrl":"https://doi.org/10.37190/ppmp/168255","url":null,"abstract":"Waste of Electrical and Electronic Equipments (WEEE) is one of the fastest growing waste streams in the world. The treatment of WEEE with high content of precious metals (Au in particular) has received the most attention due to their high economic potential. The development of simple, environmentally friendly and cost-effective methods for the recovery of metals from “low-value” WEEE (e.g., <100 g/t Au) is important from the circular economy perspective. In this study, the separation of base (Cu) and precious (Ag) metals from scrap TV boards (STVBs) by using a zig-zag air separator was investigated. Size-reduced scrap STVBs (-1 mm) were subjected to separation tests after the removal of the fine fraction (-0.1 mm). The sized scrap material (-1 +0.1 mm) was determined to have a metal content of 15.4% Cu, 47 g/t Ag and 0.05% Fe, with no gold. In the air separation tests, the effect of air flow rate (4-16 m/s) on the recovery of metals was studied. Increasing the air flow rate resulted in low metal recoveries with concurrent high metal grades in the concentrate. Separation efficiency (%) calculations showed that the most efficient separation is obtained at the highest air flow rate of 16 m/s. At this flow rate, 15.4% of the material was recovered in the concentrate which contains 62.3% Cu and 198 g/t Ag with recoveries of 63.3% Cu and 73.9% Ag. The findings indicated that zig-zag air separators can be used to obtain a metal-rich fraction under suitable conditions of the flow regime.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49227563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potassium chloride recovery from mechanically activated microcline through the chlorination roasting and leaching route 采用氯化焙烧浸出工艺回收机械活化微斜石中氯化钾

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-13 DOI: 10.37190/ppmp/167500

Bahaa Alyosif, T. Uysal, M. Erdemoğlu

引用次数: 0

Design of the usability of ceramic sanitary ware waste in cement production using the Taguchi method 田口法水泥生产中陶瓷卫生洁具废弃物的可用性设计

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-13 DOI: 10.37190/ppmp/168256

Melis Toker Derdiyok, Tahsin Kudret Perek

引用次数: 0

Surface chemistry and flotation properties of galena and pyrite particles in the presence of xanthate- monothiophosphate- thiocarbamate collectors 黄药-一硫代磷酸-硫代氨基甲酸盐捕收剂存在下方铅矿和黄铁矿颗粒的表面化学和浮选性能

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-10 DOI: 10.37190/ppmp/167947

Gokhan Ercelik, M. Terzi, I. Kursun, O. Ozdemir

{"title":"Surface chemistry and flotation properties of galena and pyrite particles in the presence of xanthate- monothiophosphate- thiocarbamate collectors","authors":"Gokhan Ercelik, M. Terzi, I. Kursun, O. Ozdemir","doi":"10.37190/ppmp/167947","DOIUrl":"https://doi.org/10.37190/ppmp/167947","url":null,"abstract":"In this study, surface chemistry and flotation properties of the gold-bearing galena and pyrite minerals of Menderes region, Izmir, Turkey were investigated with the use of xanthate-thiocarbamate-monothiophosphate collectors. In this context, the micro-flotation experiments, the zeta potential, and bubble-particle attachment time measurements were conducted in the presence of Thiophosphate (Aero S-8045), Xanthate (SIBX), and Thiocarbamate (Aero float MX-505) collectors. In the case of micro-flotation experiments, the MX-505 exhibited higher flotation efficiency for both minerals compared to SIBX and S-8045 collectors. In the case of zeta potential experiments as a function of pH, the galena mineral showed a negative charge at pH 5 and 11, no point of zero charge (pzc) was determined, and the pzc of pyrite was determined as pH≈8. The bubble-particle attachment time experiments performed in the presence of S-8045, SIBX, and MX-505 collectors indicated that the attachment efficiency was 100% in the presence of MX-505 at all dosages and contact times. These results revealed that there was an extraordinarily strong interaction between the galena/pyrite and the air bubbles in the presence of MX-505. The results obtained within this study indicated that galena and pyrite minerals showed inherently low natural floatability which can only be enhanced under specific conditions. In the tests conducted on these minerals, galena mineral showed higher natural floatability compared to pyrite mineral, and collectors produced from thiocarbamates have shown greater effectiveness compared to xanthate and thiophosphate.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41724550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel dry granule preparation technology and comparison of granule properties with conventional wet system for ceramic tiles production 一种新型干法制粒工艺及其与传统湿法制粒性能的比较

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-09 DOI: 10.37190/ppmp/167498

H. Ergin, M. U. Taşkıran, Ahmet Atınç Pilevne, Hatice Turgut, K. Kayacı

{"title":"A novel dry granule preparation technology and comparison of granule properties with conventional wet system for ceramic tiles production","authors":"H. Ergin, M. U. Taşkıran, Ahmet Atınç Pilevne, Hatice Turgut, K. Kayacı","doi":"10.37190/ppmp/167498","DOIUrl":"https://doi.org/10.37190/ppmp/167498","url":null,"abstract":"The ceramic tile manufacturing process uses a lot of energy, mainly thermal energy, and to a lesser extent electric energy. Total energy costs account for between 50% and 55% of average direct manufacturing costs. Fossil fuel combustion, such as natural gas combustion, produces carbon dioxide emission. Therefore, energy consumption and emissions issues are vitally important for both environmental effects and process costs in ceramic tile manufacturing. The wet process of granule production systems including wet grinding and spray drying is widely used for the production of granules. Although there is high energy consumption for the water evaporation in the spray dryer, it ensures to produce high quality tile for many years.\u0000In this study, important granule properties were introduced for a novel dry granule production system. In the successful application of a dry granulation system, the conformity of produced granules is vitally important such as particle size distribution, bulk density, flow properties, and moisture of granules and conformity for the pressing process. This paper includes the comparative studies for properties of granules produced in spray dryer and new dry granule preparation systems and the full results of the industrial trials with these granules. The cost comparison of both granule production systems was also made for the same raw material usage. The natural gas consumption and water consumption were reduced respectively from 46 to 15 m3/ton and from 540 to 95 liters/ton in the new dry granulation system while electricity consumption and maintenance costs remain almost the same in both systems.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46895728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technology for increasing the precious metals content in copper concentrate obtained by flotation 提高浮选铜精矿中贵金属含量的工艺

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-09 DOI: 10.37190/ppmp/167424

M. Panayotova, V. Panayotov

引用次数: 0

Beneficiation Of Artvin-Cerattepe copper-zinc ore by flotation Artvin Cerattepe铜锌矿石的浮选选矿

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-09 DOI: 10.37190/ppmp/167499

A. Seyrankaya, Uğur Yontar, M. Canbazoǧlu, Sinan Kabaloğlu

{"title":"Beneficiation Of Artvin-Cerattepe copper-zinc ore by flotation","authors":"A. Seyrankaya, Uğur Yontar, M. Canbazoǧlu, Sinan Kabaloğlu","doi":"10.37190/ppmp/167499","DOIUrl":"https://doi.org/10.37190/ppmp/167499","url":null,"abstract":"The Cerattepe (Artvin) mine contains volcanogenic massive sulfide (VMS) deposits in northeastern Turkey. This is a kuroko type deposit located in Late Cretaceous volcanic, intrusive and sedimentary rocks, and has a structure with dense alteration stages. In this study, batch flotation tests were carried out to determine the flotation behavior of a new sample (mix ore), that was the combination of two different ores with different flotation behaviors. The mixed ore contains 2.18% Cu, 1.46% Zn, (Cu/Zn ratio 1.49) 38.35% Fe, and 41.6% S content. An efficient separation of copper minerals from zinc minerals using the conventional selective flotation method could not be achieved due to complex mineralogy and very low liberation degree. Therefore, sequential selective flotation resulted in poor Cu recovery. The effects of flotation parameters such as collector type, collector amount, particle size, and pH conditions, were investigated to obtain a bulk copper-zinc concentrate. The best results were obtained using thionocarbamate (Aero 3894) and dithiophosphine (Aerophine 3418A) collector reagents at d80=40 µm particle size. Under optimal conditions (grain size, d80=40 µm, pH=11, amount of collector reagent 60 g/t (Aero 3894), frother (MIBC)=50 g/t, solid ratio=32%, flotation time=8 min), a bulk copper-zinc concentrate containing 13% Cu and 9.5% Zn was obtained with a copper yield of 84.4% and a zinc yield of 88.9%. The concentrate mass pull was 13%. After rougher and two-stage scavenger flotation, a concentrate (rougher concentrate + scavenger products) was obtained with a mass pull of 22%. Copper and zinc recoveries of this concentrate were 91.8% and 92.5%, respectively.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41626704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of activity coefficient and equilibrium constant models on the speciation of aqueous solutions of H2SO4–MgSO4–Al2(SO4)3 at 235 and 250°C 活性系数和平衡常数模型对235和250°C下H2SO4–MgSO4–Al2（SO4）3水溶液形态的影响

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-09 DOI: 10.37190/ppmp/167497

O. V. Dickson, T. Deleau, C. Coquelet, F. Espitalier, Julien Lombart, Antoine Tardy

{"title":"The influence of activity coefficient and equilibrium constant models on the speciation of aqueous solutions of H2SO4–MgSO4–Al2(SO4)3 at 235 and 250°C","authors":"O. V. Dickson, T. Deleau, C. Coquelet, F. Espitalier, Julien Lombart, Antoine Tardy","doi":"10.37190/ppmp/167497","DOIUrl":"https://doi.org/10.37190/ppmp/167497","url":null,"abstract":"Supersaturation occurs in many industrial applications promoting reactive crystallisation between the reactants to form solutes. These solutes accumulate during precipitation, leading to the formation of scales on the inner walls of the reactor and particularly around the stirrer, causing modifications in the hydrodynamics. This encrustation is responsible for process shutdowns in continuous crystallisation processes. Supersaturation control is essential for industrial processes aimed at controlling or inhibiting the formation of these solids. Knowledge of mineral solubility and chemical speciation is required to account for the composition of the complexes in the system in their various solid or aqueous forms. This speciation is obtained by considering the thermodynamic equilibrium constants of the dissociation/complexation reactions involved in the system, the pressure, and the activity coefficients of the chemical species in their molecular or electrolyte form. From these thermodynamic quantities and the state of the system, we can predict the direction of the reaction. This study highlights the risk of the lack of experimental information on equilibrium constants at high temperatures and moderate pressures. Our goal is to evaluate the accuracy of existing models classically used to predict the equilibrium constant in such very hard conditions encountered in hydrometallurgical processes. Furthermore, we demonstrate the influences of equilibrium constants estimation and activity coefficient models on the speciation of H2SO4–Al2(SO4)3–MgSO4 systems, forming hydronium alunite and kieserite in the laterite liquor of hydrometallurgical processes","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42288667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Recent sustainable trends for e-waste bioleaching 电子垃圾生物浸出的最新可持续发展趋势

IF 1.5 4区工程技术

Physicochemical Problems of Mineral Processing Pub Date : 2023-06-02 DOI: 10.37190/ppmp/167375

Mohammed Sami Al Sultan, B. Benli

{"title":"Recent sustainable trends for e-waste bioleaching","authors":"Mohammed Sami Al Sultan, B. Benli","doi":"10.37190/ppmp/167375","DOIUrl":"https://doi.org/10.37190/ppmp/167375","url":null,"abstract":"For the past few decades, the electronic and electrical waste have been accumulating and piling on our lands and aside from posing some serious threat on our environment and our health. And with the technological advance and the rapid growing electronic demand and production there is the risk of accumulating even more unused valuable usable materials in our waste land-fields. Up to 2030, EU is forecasting about 74 million tons of e-waste, including washing machines, tablet computers, toasters, and cell phones. In 2022, more than 5.3 billion mobile phones were wasted whereas Li, Mn, Cu, Ni, and various rare-earth elements (like Nd, Eu and Tb, etc.) as well as graphite are actually found in the contents of many metal parts from wiring, batteries to their components. The main purpose aside from an environmental aspect is reserving the mineral used in this waste, as many of the crucial materials have a supply risk heavily depending on import. For instance, many of these rare earth elements (REE) are sourced from China; these REEs are used in many electronics that range from consumer products to industrial-use machines. This study is to review one of the desired methods that is via using bio-techniques to dissolve and recover as much as possible from main e-waste sources such as PCBs, spend batteries and LCD/LED panels. Microorganisms that are used for bioleaching process and their metal recovery aspects were compared in the second part. Future perspectives were finally added considering significant techno-economic environmental and social impacts.","PeriodicalId":49137,"journal":{"name":"Physicochemical Problems of Mineral Processing","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43347062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0