Results 31 to 40 of about 719,149 (351)

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

Application of homogeneously precipitated nanosized Fe-doped alumina powders to carbon nanotube growth. [PDF]

open access: yes, 2010
Homogeneous precipitation of hydroxides was investigated as an alternative method to synthesize Fe-doped aluminum oxide (α-Al2−2xFe2xO3) particles over which carbon nanotubes (CNTs) were grown via a catalytic chemical vapor deposition (CCVD) method ...
Alvarez   +23 more
core   +2 more sources

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

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

Methods for removing heavy metals from water and wastewater: A review study [PDF]

open access: yesPizhūhish dar Bihdāsht-i Muḥīṭ., 2020
Background and purpose: Heavy metals are one of the stable pollutants that do not decompose in nature and can import into the environment by sewage or wastewater of various industries. Usually, small quantities of these metals are required for the normal
کیوان شایسته, Gity Behboody
doaj   +1 more source

Influence of interstitials content on the diffusion of Niobium in alloy 718 [PDF]

open access: yes, 2009
Many studies have emphasized the beneficial effect of niobium on the physical metallurgy of Ni-Cr-Fe alloy 718. Among the different strengthening actions of niobium, such as solid solution hardening and carbide precipitation, the precipitation of niobium
Andrieu, Eric   +4 more
core   +1 more source

Some characteristics of chemical precipitation [PDF]

open access: yesTellus B, 1983
Two very dissimilar cold frontal occlusions deposited 6 mm and 60 mm of rain respectively at anobservatory in the rural northeastern U.S.A. Water precipitation was carefully observed. in conjunction with other meteorological parameters, through both storm systems.The concentration of several ionic substances were measured in specimens of rain ...
openaire   +3 more sources

Novel materials and crystallizer design for freeze concentration

open access: yesScientific African, 2023
When wastewater streams or seawater are desalinated, the waste product is a hypersaline brine stream which is usually disposed of or stored in evaporation ponds.
Alison Emslie Lewis   +5 more
doaj  

Processes, microstructure and properties of vanadium microalloyed steels [PDF]

open access: yes, 2009
Vanadium as an important alloying element in steels was initially associated with the properties achieved following tempering. Interest in the microstructure was stimulated by the advent of transmission electron microscopes with a resolution of ~1nm ...
Baker, T.N.
core   +1 more source

Structural, Electrical and Optical Studies of NixCd1-xS (x = 0.8, 0.6, 0.4 and 0.2) Nanoparticle System

open access: yesEast European Journal of Physics, 2023
This paper demonstrates the synthesis of NixCd1-xS (x=0.8,0.6,0.4,0.2) nanoparticles by microwave-assisted chemical precipitation method. The prepared samples were characterized by XRD, EDAX, SEM, UV-VIS, and PL spectroscopy.
Moly M. Rose   +3 more
doaj   +1 more source

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