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News Article | April 25, 2017
Site: marketersmedia.com

Global Zinc Oxide Industry Report covering market by types, Regions, Application, and leading vendor’s profile based on sales, price, sales regions, products, profile etc.Pune, India - April 25, 2017 /MarketersMedia/ — Global Zinc Oxide Market 2012- 2022 Report provides detailed analysis of market in 9 chapters with required tables and figures. Access this report at https://www.themarketreports.com/report/global-zinc-oxide-market-research-2011-2022 Global Zinc Oxide Market report classifies Zinc Oxide types as Direct Method (USA Method), Indirect Method (French Method) and Chemical Precipitation (Wet Method). Applications covered in this report areRubber/Tires Ceramic/Glass Chemical/Pharmaceutical and Agriculture. This report also provides key analysis for the geographical regions like Europe, North America, China, Japan & Korea. Companies like US Zinc, Zochem, Umicore, Zinc Nacional, Zinc Oxide LLC, Silox, GH Chemicals, Rubamin, Grillo, Mario Pilato, Brueggemann, A-Esse, Hakusui, Pan-Continental Chemical, Seyang and more are profiled in this report providing information on sale, price, sales regions, products and overview. Purchase a copy of this report at: https://www.themarketreports.com/report/buy-now/483927 Table of Contents: 1 Market Overview 1.1 Objectives of Research 1.2 Market Segment 2 Industry Chain 2.1 Industry Chain Structure 2.2 Upstream 2.3 Market 3 Environmental Analysis 3.1 Policy 3.2 Economic 3.3 Technology 3.4 Market Entry 4 Major Vendors 5 Market/Vendors Distribution 5.1 Regional Distribution 5.2 Product and Application 6 Regions Market 6.1 Global 6.2 Europe 6.3 North America 6.4 China 6.5 Japan & Korea 6.6 Trade 7 Forecast 7.1 Market Trends 7.2 Segment Forecast 8 Marketing Overview 8.1 Ex-factory Price 8.2 Buyer Price 8.3 Price Factors 8.4 Marketing Channel 9 Conclusion Inquire more about this report at: https://www.themarketreports.com/report/ask-your-query/483927 Contact Info:Name: Shirsh GuptaEmail: sales@themarketreports.comOrganization: The Market ReportsAddress: SF-29, Sacred World, Wanawadi, PunePhone: 6314071315Source URL: http://marketersmedia.com/global-zinc-oxide-market-is-estimated-to-reach-1-3-million-usd-in-2017/189866For more information, please visit https://www.themarketreports.com/report/global-zinc-oxide-market-research-2011-2022Source: MarketersMediaRelease ID: 189866

Kumar B.N.,Indian Institute of Chemical Technology | Reddy B.R.,Indian Institute of Chemical Technology | Reddy B.R.,Rubamin Ltd | Kantam M.L.,Indian Institute of Chemical Technology | And 2 more authors.
Separation Science and Technology (Philadelphia) | Year: 2014

The synergistic solvent extraction of Neodymium(III) with mixture of triisooctylamine (Alamine 308, R3N) and bis(2,4,4-trimethylpentyl) monothiophosphinic acid (Cyanex 302, (HX)2) in kerosene from chloride solutions has been investigated. A significant synergistic effect was found by the addition of Cyanex 302 to Alamine 308. The synergistic enhancement coefficient was calculated to be 44.1 for Nd at a mole fraction of 0.2 of Cyanex 302 in the mixture. Results of the effect of equilibrium pH on the distribution ratio of Nd suggested two moles of H+ released in the extraction of Nd with a mixture of extractants. The effect of variation of one extractant at a fixed concentration of the other extractant has been carried out in order to determine the extracted species as NdClX2.2 R3N. The endothermic nature of extraction with the mixture of extractants was confirmed by the temperature effect and thermodynamic parameters ΔH, ΔG, and ΔS were calculated. © 2014 Copyright Taylor and Francis Group, LLC.

Reddy B.R.,Rubamin Ltd | Kumar J.R.,Korea Institute of Geoscience and Mineral Resources
Solvent Extraction and Ion Exchange | Year: 2016

Rare earths (REs) recovery and processing becomes most important all over the globe due to their versatile applications in modern life. The present general article discusses REs extraction and possible separation and recovery methods from phosphoric acid media. Leaching studies are discussed followed by two extraction techniques: solvent extraction and solid–liquid extraction. Various extractants such as TOPS 99 (or) D2EHPA, Cyanex 272, PC 88A were tested for REs extraction and separation. Three resins, Tulsion T-PAR, CH-96, and CH-93, as well as impregnated TOPS 99 were utilized for solid–liquid extraction studies. © 2016 Taylor & Francis

Kim J.S.,Korea Institute of Geoscience and Mineral Resources | Kumar B.N.,Indian Institute of Chemical Technology | Radhika S.,Indian Institute of Chemical Technology | Kantam M.L.,Indian Institute of Chemical Technology | And 2 more authors.
International Journal of Mineral Processing | Year: 2012

In this paper, solvent extraction of mixture of rare-earths (Sm(III), Gd(III), Dy(III) and Y(III)) from chloride solutions using acidic, neutral and basic type extractants and their mixtures has been investigated. The main objective of the work was to select a suitable solvent extractant system for the separation of mixture of rare-earths using organophosphoric acid (TOPS 99), phosphonic acid (PC 88A), phosphinic acid (CYANEX® 272), monothiophosphinic acid (CYANEX® 302), phosphine oxide (CYANEX® 923, CYANEX® 921) and amine based (ALAMINE® 336, ALIQUAT™ 336) extractants. The composition of the synthetic mixture of rare-earths was Sm - 1.835 g/L, Gd - 0.862 g/L, Dy - 0.303 g/L, Y - 0.589 g/L which was prepared according to the leach liquor of the Korean domestic ore. From the effect of aqueous phase acidity and extractant concentration on the extraction efficiency of rare-earths, PC 88A (0.1 mol/L) considered as better extractant with high separation factor for Dy-Y pair with Sm-Gd pair. Mixture of extractants has shown no significant effect on the separation factors of rare-earths than individual extractants. © 2012 Elsevier B.V.

Raju B.,Indian Institute of Chemical Technology | Kumar J.R.,Korea Institute of Geoscience and Mineral Resources | Lee J.-Y.,Korea Institute of Geoscience and Mineral Resources | Kwonc H.-S.,University of Suwon | And 3 more authors.
Journal of Hazardous Materials | Year: 2012

The solvent extraction and precipitation methods have been used to develop a process to separate platinum and rhodium from a synthetic chloride solutions containing other associated metals such as (mg/L): Pt-364, Rh-62, Al-13880, Mg-6980, Fe-1308 at <1M HCl acidity. At pH 3.4, the quantitative precipitation of Al and Fe was achieved using 10wt% Na 3PO 4·12H 2O, with ~4% loss of Pt and Rh due to adsorption phenomenon. The selective separation of platinum was carried out with 0.01M Aliquat 336 (a quaternary ammonium salt) at an aqueous to organic ratio (A/O) of 3.3 in two stages. Stripping of Pt from loaded organic (LO) at O/A ratio 6 with 0.5M thiourea (tu) and HCl indicated that ~99.9% stripping efficiency. In stripping studies, needle like crystals of Pt were found and identified as tetrakis (thiourea) platinum (II) chloride ([Pt(tu) 4]Cl 2). The selective precipitation of rhodium was performed with (NH 4) 2S from platinum free raffinate with a recovery of >99%. © 2012 Elsevier B.V..

Kim J.S.,Korea Institute of Geoscience and Mineral Resources | Nagaphani Kumar B.,Indian Institute of Chemical Technology | Lee J.Y.,Korea Institute of Geoscience and Mineral Resources | Lakshmi Kantam M.,Indian Institute of Chemical Technology | And 2 more authors.
Separation Science and Technology (Philadelphia) | Year: 2012

In this paper, separation possibilities of light rare-earths (LREs), Ce, La, Nd, and Pr with three acidic organophosphorus extractants such as TOPS 99 (an equivalent of di-2-ethylhexyl phosphoric acid, D2EHPA), PC 88A(2-ethylhexylphosphonic acid mono-2-ethylhexyl ester), and Cyanex 272 (Bis(2,4,4-trimethylpentyl)phosphinic acid) from synthetic chloride solutions of monazite at three initial pH values has been investigated. The composition of synthetic leach liquor is Ce - 5.4 g/L, La - 3.12 g/L, Nd -1.35 g/L, and Pr - 0.475 g/L at pH 2.0. Using sodium hypochlorite and sodium hydroxide, cerium was precipitated as ceric hydroxide quantitatively. Among the three investigated extractants, TOPS 99 showed better separation factors towards LREs. Therefore, 0.7 mol/L TOPS 99 has been employed for the separation of Nd, and Pr from La in 3-stages at an aqueous to organic phase ratio of 4:1 and pH 2.0. Raffinate contains 2120 mg/L La, 41 mg/L of Nd, and 17 mg/L of Pr corresponding to an extraction efficiency of 32.1%, 96.4%, and 96.2%, respectively. La from loaded organic phase was scrubbed with 9182 mg/L Nd solution and achieved a scrubbing efficiency of 98.2%. 1 mol/L HCl is used for quantitative stripping. A process flowsheet for the separation and recovery of LREs was presented. © 2012 Copyright Taylor and Francis Group, LLC.

Radhika S.,Indian Institute of Chemical Technology | Nagaphani Kumar B.,Indian Institute of Chemical Technology | Lakshmi Kantam M.,Indian Institute of Chemical Technology | Ramachandra Reddy B.,Indian Institute of Chemical Technology | Ramachandra Reddy B.,Rubamin Ltd
Hydrometallurgy | Year: 2011

TOPS 99, an equivalent to di-2-ethylhexyl phosphoric acid has been employed for the solvent extraction and separation of a mixture of rare-earths (four light rare-earths (LREs) La, Ce, Pr, Nd, and seven heavy rare-earths (HREs) like Tb, Dy, Y, Ho, Er, Yb and Lu) into some fractions from phosphoric acid solutions. From the acid and extractant effects, 0.1 and 1 M TOPS 99 were suitable for the separation of a mixture of REs into three concentrates at 3 M acid, which is similar to wet phosphoric acid solutions (WPA). McCabe-Thiele extraction isotherm predicts the separation of Yb + Lu at an aqueous-to-organic (A/O) phase ratio of 2 in three stages using 0.1 M TOPS 99. Counter-current batch extraction simulation (CCES) of Yb and Lu at an A/O of 2 resulted in a raffinate containing 3.6 mg/L of Yb + Lu, corresponding to an extraction efficiency of 91.9%, whereas other five HREs loss was about 6.7%. Stripping of Yb and Lu as per the predictions of McCabe-Thiele plot from loaded organic (LO) was selected at O/A phase ratio of 3 with 4 M HCl and counter-current stripping simulation studies resulted 100% stripping efficiency. From the Yb + Lu raffinate, remaining five HREs were extracted about 94.4% with 1 M TOPS 99 at an A/O ratio of 3 in three stages. The LRE (Pr and Nd) co extraction is 9.8%. Quantitative stripping of HREs from LO is achieved with 7 M HCl at an O/A ratio of 3 in two stages. Finally, a process flowsheet was presented for the separation of rare-earths into three groups, two HRE fractions (Yb + Lu and Tb, Dy, Ho, Y, Er) and one LRE fraction from 3 M phosphoric acid. © 2011 Elsevier Inc. All rights reserved.

Surampally R.,Indian Institute of Chemical Technology | Batchu N.K.,Indian Institute of Chemical Technology | Mannepalli L.K.,Indian Institute of Chemical Technology | Bontha R.R.,Indian Institute of Chemical Technology | Bontha R.R.,Rubamin Ltd
Journal of the Taiwan Institute of Chemical Engineers | Year: 2012

Solvent extraction studies of Dy(III) from phosphoric acid medium has been investigated using PC-88A (2-ethylhexylphosphonic acid mono-2-ethylhexyl ester) alone and in combination with acidic, basic and neutral extractants. Systematic studies of Dy(III) using 0.04mol/L PC-88A as a function of equilibrium pH, extractant concentration and metal concentration indicated the extracted organic complex stoichiometry as Dy·3(HA2). Extraction behaviour of other rare earths (REs) with 0.1mol/L PC-88A suggested the possible separation of Lu+Yb from others in the acid range 0.6-1mol/L. Based on this, effect of phase ratio was studied with a mixture of elements; three stages were needed for the separation of Lu+Yb from Dy+Tb at an A/O ratio of 2.5:1 and 1:1 at 0.6mol/L and 1mol/L acid, respectively. Studies on Dy(III) extraction using a mixture of extractants (PC-88A+other extractant) showed synergistic effect only with PC-88A+Cyanex 301 mixture. Stripping of metal from loaded organic with mineral acids showed that sulphuric acid as the best one. © 2012 Taiwan Institute of Chemical Engineers.

Radhika S.,Indian Institute of Chemical Technology | Kumar B.N.,Indian Institute of Chemical Technology | Kantam M.L.,Indian Institute of Chemical Technology | Reddy B.R.,Indian Institute of Chemical Technology | Reddy B.R.,Rubamin Ltd
Separation and Purification Technology | Year: 2010

Liquid-liquid extraction of mixture of seven heavy rare-earths (HREs) such as terbium, dysprosium, holmium, yttrium, erbium, ytterbium, and lutetium and mixture of four light rare-earths (LREs) such as lanthanum, cerium, praseodymium and neodymium has been investigated from phosphoric acid solutions. Extractants used are, Talcher organic phosphorus solvent (TOPS 99), an equivalent to di-2-ethylhexyl phosphoric acid, 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (PC-88A), and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272). The objective of the present study was to investigate the extraction behavior and separation possibilities among HREs and LREs and also separation of HREs as a group from LREs in 3-5 M acid, which is similar to wet phosphoric acid concentration. The parameters studied include time, H 3PO 4 concentration and extractant concentration. The percent extraction of metal decreases as the acid concentration increases with any given extractant concentration. Mechanism of metal transfer follows ion exchange type. The separation factors were evaluated based on the distribution coefficients in order to estimate the potential of the results for the separation of individual/pair of rare-earths from others and the separation of HREs from LREs. Extraction efficiency of extractants towards lanthanides from H 3PO 4 medium decreases in the series: TOPS 99 > PC 88A > Cyanex 272. © 2010 Elsevier B.V. All rights reserved.

Srivastava R.R.,Rubamin Ltd. | Mittal N.K.,Rubamin Ltd. | Padh B.,Rubamin Ltd. | Reddy B.R.,Rubamin Ltd.
Hydrometallurgy | Year: 2012

Selective separation of Mo and W from Mo-rich leach liquor is always a difficult task. The SX route is more costly, and for better process economy an inorganic route is preferred in terms of impurity removal. Spent HDS catalyst leach liquor of composition (in g/L): 17.11 Mo, 0.583 W, 0.646 Ni, 0.052 Co, 0.005 V and 0.152 P was taken for the present study. Impurity removal was investigated by adsorption using Mn and ferric compounds. Adsorption of W and P on freshly precipitated hydrous ferric oxyhydroxide (HFO) at W/Fe ratio of 0.5 M, temperature 50 °C for 2 h was found to yield an optimum at ~ 90% efficiency, whereas Co and V become fully adsorbed. Adsorption kinetics of W onto HFO was determined and correlated with common equations; a good fit was found with Freundlich model, and it follows 1st order. Ni as an impurity remains almost untouched during adsorption; it was separated during precipitation of molybdenum as ammonium octamolybdate. The present approach may directly applied to remove impurities from Mo-rich leach liquor as per the proposed schematic flow sheet. © 2012 Elsevier B.V.

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