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Contribution of redox-active properties of compost-derived humic substances in hematite bioreduction
Publikováno v:
Chinese Chemical Letters. 33:2731-2735
The compost-derived humic substances (HS) can function as electron mediators for promoting hematite bioreduction because of its redox capacity. Humification process can affect redox capacities of compost-derived HS by changing its intrinsic structure
Publikováno v:
ACS Omega, Vol 6, Iss 36, Pp 23607-23613 (2021)
ACS Omega
ACS Omega
Hematite was recently introduced as a weighting agent in drilling fluids; however, its use has some problems because of the settlement of solid particles (solid sagging). Particularly when it comes to high-pressure high-temperature (HP/HT) wells, sag
Publikováno v:
Mining, Metallurgy & Exploration. 38:2175-2183
The increase of the proportion of high Al2O3 content iron ore fine in iron and steel enterprises has brought about a series of problems such as the increase of the viscosity of blast furnace slag and the difficulty of the separation of slag and iron.
Publikováno v:
ACS Omega, Vol 6, Iss 28, Pp 17824-17830 (2021)
ACS Omega
ACS Omega
In our previous publication, we published a simple, low-cost, and environmentally friendly process for the breaking down of the ilmenite lattice using rotary autoclaving, separation of titanium and iron components, and the conversion of the titanium
Autor:
Antonio Gutiérrez Merma, Ronald Rojas Hacha, Marcelo Carneiro Camarate, Maurício Leonardo Torem
Publikováno v:
Separation Science and Technology. 57:36-47
In the last decade the mineral industry has been working in order to face its biggest challenge: The processing of ultrafine mineral particles. Several techniques and processes have been used to im...
Autor:
Syed Mohammed Mustakim, Adeyemi Adesina, Shaswat Kumar Das, Subhabrata Mishra, Malaya Kumar Jena
Publikováno v:
Mining, Metallurgy & Exploration. 38:1537-1550
Utilization of low-grade manganese ore adopting the carbothermic reduction roasting process is a proven method to produce high-grade manganese ore. To minimize industrial waste and protect the environment, gas cleaning plant sludge (GCPS), which is a
Autor:
Ronald Rojas Hacha, Antonio Gutiérrez Merma, Silvas Flavia Paulucci Cianga, Abhilash A, Andreza Rafaela Morais Pereira, Maurício Leonardo Torem
Publikováno v:
Separation Science and Technology. 56:2978-2988
The use of a biosurfactant (BS) in mineral flotation offers numerous advantages over conventional surfactants, such as their low toxicity, high degradation kinetics, and potential for selectively t...
Publikováno v:
ACS Omega
ACS Omega, Vol 6, Iss 5, Pp 4022-4033 (2021)
ACS Omega, Vol 6, Iss 5, Pp 4022-4033 (2021)
Asphaltene adsorption and deposition onto rock surfaces are predominantly the cause of wettability and permeability alterations which result in well productivity losses. These alterations can be induced by rock-fluid interactions which are affected b
Autor:
Ajeet K. Srivastav, Suresh Bandi
Publikováno v:
Crystal Growth & Design. 21:16-22
The present work reports the linkage between the formation pathway and the growth behavior of hematite nanoparticles during the coprecipitation synthesis route. The formation pathway was identified...
Autor:
Joelda Dantas, Priscila Richa, Elvia Leal, Roberto da Costa Lima, Ana Cristina Figueiredo de Melo Costa, Sabrina Kelly Trajano Basílio, Ruth Herta Goldschmidt Aliaga Kiminami
Publikováno v:
Arabian Journal of Chemistry, Vol 13, Iss 11, Pp 8100-8118 (2020)
The synthesis of the Ni0.5-xZn0.5-xCu2xFe2O4 (x = 0; 0.10 and 0.15) ferrite with the differential of pilot-scale production by the combustion reaction method was investigated for RAM application purposes. Combustion temperatures ranging from 682 °C