Estimation of Manganese in Ferromanganese Slag | Chapter 7 | Chemical and Materials Sciences: Research Findings Vol. 2

Leaching of manganese from ferromanganese slag (Garividi, Vizianagram Dt.) was effectively done by using both hydrochloric and perchloric acid solutions. It was noticed that the rate of leaching is more temperature sensitive and dependent on the nature of the acid solution used in these studies.

 

Solvent extraction of manganese [Mn (II)] by tri-n-octylamine (TOA) dissolved in xylene from hydrochloric and perchloric acid media has been carried out. Extractions are nearly quantitative from both acid solutions. The effect of concentrations of acid, metal, and TOA and diluent on the extraction has been studied. Maximum efficiency is obtained with xylene as diluent. Stripping of manganese from the organic phase was quantitatively achieved with 1.0M HNO₃. The extracted species was also identified as [Mn X₂. (2TOA)], (X=chloride or perchlorate).

 

Attempts made for the estimation of manganese were successful in the presence of other metals and impurities usually associated with ferromanganese slag.

 

Author (s) Details

A.V.L.N.S.H. HARIHARAN
Department of Chemistry, GIS, GITAM University, Visakhapatnam – 530 045, India.

 

K.Y. KARUNA
Department of Chemistry, GIS, GITAM University, Visakhapatnam – 530 045, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/cmsrf/v2/5174

Study on Leaching Pattern of Phosphate Glass Fertilizers with Different Compositions under Soxhlet Distillation Conditions | Chapter 8 | Challenges and Advances in Chemical Science Vol. 7

 The goal of this research is to investigate the leaching of phosphate glass fertilisers of various compositions under Soxhlet distillation settings. In the phosphate systems, glass fertilisers were melted at 900-950°C after soaking for 1 hour. Under Soxhlet distillation conditions with distilled water, a leaching investigation of these glasses was done for a maximum of 300 hours. BET surface area was used to assess weight loss and leach rates of glass fertiliser samples. measurements. They were in the range of 6.3x10-3 to 2.3x10-3 g.m-2.h-1 at 90°C. The effect of different modifier ions like Na+, Fe3+, Mg2+, Ca2+, and K+ in the basic phosphate networks on melting and time It has been discovered that there is a lot of melting going on. The pH of the leachate solution was measured at ambient temperature and revealed interesting and regular fluctuations ranging from 4.80 to 7.50. Ca2+, Mg2+, and K+ were found to be strong candidates as modifiers for quicker leaching in a Soxhlet analysis of such glasses. In terms of ionic size, ionic radius, and hence the ionic potential of the modifier ions absorbed into the glass structure, the findings were confirmed. Glass fertilisers were applied to kharif paddy. The presence of alkaline earth oxides enhances phosphate glass corrosion, whereas the addition of intermediate oxides lessens phosphate glass corrosion. The growth and production of khariff paddy were demonstrated to be better following the application of glass fertiliser than when traditional fertilisers were used.     

Author (s) Details

Tanmoy Das
Department of Chemistry, The University of Burdwan, Burdwan 713 104 (W.B.), India.

Biswajit Mandal
Department of Chemistry, The University of Burdwan, Burdwan 713 104 (W.B.), India.

View Book :- https://stm.bookpi.org/CACS-V7/article/view/5174

Advanced Processing of Lateritic Ore | Book Publisher International

 Nickel, cobalt, iron, silicon, aluminium, and chromium are among the metal components found in laterite ore, which is one of the mineral resources. It's found all over the equatorial region and is mostly used as a nickel supply. However, laterite with a high nickel content is the only laterite that can be used. Despite the large deposit, the nickel-free laterite ore has never been exploited properly, and it occasionally has a significant iron component. As high-grade iron ore deposits become scarcer each year, laterite's high iron concentration makes it an appealing iron resource. The introduction of a series of processes for using high iron content laterite ore as an iron resource. The process begins with comminution and agglomeration, followed by selective reduction of laterite ore using mixed gas, after which the physical and chemical features of laterite ore are described, including dehydration treatment. The nickel is extracted from the reduced laterite ore using a leaching method. The next stage is to use a magnetic separator to collect iron from the leached-laterite residue in the form of magnetite complex, which is then subjected to a reduction process for iron extraction.

Author(s) Details

Hadi Purwanto
International Islamic University Malaysia, Malaysia.

View Book:- https://stm.bookpi.org/APLO/article/view/2097

Soil pH Interference in the Behavior of Weak Acid Herbicides | Chapter 5 | Recent Progress in Plant and Soil Research Vol. 1

 Herbicides derived from weak acids can be affected in their sorptive capacity when they interact with soil pH. As a result, when their pH rises, they can reduce their sorption in the soil and increase their leaching. This increases the herbicide's bioavailability in the soil, resulting in a greater control effect on weeds and crop injuries. However, if there is rain, the herbicide may be transported by leaching in the soil profile to the deeper layers of the active seed bank, reducing weed control. Given the foregoing, it is critical to investigate the interactions with soil pH in risk assessment and agronomic procedures. The analysis of the herbicide's behavior in the soil, as well as the correct positioning of the product in chemical management. This chapter explains how the pH of the soil can affect the behavior of weak acidic herbicides in a chemically understandable way for agrarian scientists. The difference in electric charges of ionized herbicides and colloids was critical in understanding how these interactions occur, which are influenced by soil type and pH. Finally, it is expected that professionals who work with herbicides will be able to better understand some of the interactions of herbicide chemical molecules with soil and make appropriate recommendations.

Author (S) Details

Levi Andres Bonilla Rave
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

Kassio Ferreira Mendes
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

Daniela Margarita Echeverri Delgadillo
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

Dilma Francisca de Paula
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

Adalin Cezar Moraes de Aguiar
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

Antonio Alberto da Silva
Department of Agronomy, Federal University of Viçosa, Viçosa – MG, Brazil.

View Book :- https://stm.bookpi.org/RPPSR-V1/article/view/1863