Results 21 to 30 of about 756,954 (308)

Separation of Sn, Sb, Bi, and Cu from Tin Anode Slime by Solvent Extraction and Chemical Precipitation

open access: yesMetals, 2021
Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated a route to separate Sn, Sb, Bi, and Cu from tin anode slime after leaching with hydrochloric acid. In the solvent extraction process with tributyl phosphate,
Wei-Sheng Chen   +2 more
doaj   +1 more source

Purification of the Acidic Vanadium-Bearing Solution with a Novel Approach of Chemical Precipitation

open access: yesMetals, 2021
Calcified roasting followed by dilute sulfuric acid leaching is a promising process for cleaner vanadium extraction from converter vanadium slag. However, some impurities, like Ca, Mg, Mn, Si and Al, also transfer into the leaching solution, accompanying
Juhua Zhang, Wei Zhang, Chengzhi Li
doaj   +1 more source

Microstructure-Modulated Antibacterial Performance of Chemically Precipitated SnO2 Nanoparticles [PDF]

open access: yesJournal of Applied Sciences and Nanotechnology, 2023
Tin oxide (SnO2) nanoparticles were synthesized via a facile chemical precipitation route using tin chloride (SnCl2•2H2O) as precursor and ammonia as precipitant. The as-synthesized nanoparticles were subjected to post-calcination at 300°C, 400°C and 500°
Shatha Batros, Mohammed Ali, Ali Addie
doaj   +1 more source

Synthesis and characterization of polypyrrole-coated iron oxide nanoparticles

open access: yesMaterials Research Express, 2021
Conducting polymers are gaining importance in recent years for their remarkable electrical and ionic properties and so, in order to further improve the fundamental properties, they are being integrated with iron oxide (Fe _3 O _4 ) nanoparticles (NPs ...
J Anita Lett   +8 more
doaj   +1 more source

Using Chemical Precipitation to Recover Struvite from Household Wastewater for Agricultural Fertilizer Utilization

open access: yesEngineering Proceedings, 2023
Struvite is a substance that can be extracted from wastewater and has the potential to replace conventionally manufactured fertilizers and reduce environmental issues.
Reya Issac   +6 more
doaj   +1 more source

Systematic front distortion and presence of consecutive fronts in a precipitation system [PDF]

open access: yes, 2006
A new simple reaction-diffusion system is presented focusing on pattern formation phenomena as consecutive precipitation fronts and distortion of the precipitation front.The chemical system investigated here is based on the amphoteric property of ...
Izsák, F.   +3 more
core   +4 more sources

Fines Formation (and Prevention) in Seeded Precipitation Processes

open access: yesKONA Powder and Particle Journal, 2014
An overview of three studies on seeded precipitation in a fluidised bed reactor (FBR) is presented. The objective of using the FBR is to remove dissolved metals as precipitated metal salts onto a seed surface.
Alison Lewis
doaj   +1 more source

Role of the sediments of two tropical dam reservoirs in the flux of metallic elements to the water column [PDF]

open access: yes, 2012
In tropical climates, the high rainfall and temperature, throughout the annual cycle, allow high leaching rates of metallic elements from the basin upstream, which accumulate in the reservoirs.
Barriga, Fernando   +3 more
core   +1 more source

Evaluation of advanced phosphorus removal from slaughterhouse wastewater using industrial waste-based adsorbents

open access: yesWater Science and Technology, 2021
Slaughterhouse wastewater (SWW) contains high concentrations of phosphorus (P) and is considered as a principal industrial contaminant that causes eutrophication.
Shengdan Sun   +5 more
doaj   +1 more source

Spiral precipitation patterns in confined chemical gardens [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
Significance Chemical gardens are plant-like mineral forms existing in nature at various scales. Even though they have been described for more than three centuries thanks to their beauty and analogies with biological forms, their growth mechanisms remain largely not understood.
Florence Haudin   +3 more
openaire   +4 more sources

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