Results 41 to 50 of about 1,164,984 (151)

Management affects nitrate leaching from organic farms [PDF]

, 2013
Management decisions significantly affect nitrate-N leaching (N-leaching) from comparable organic fields. The main concern is field management during autumn and themanagement of grass leys.
Eriksen, J., Askegaard, Margrethe
core   +1 more source

Inorganic-organic hybrids originating from organosilane anchored onto leached vermiculite [PDF]

Materials Research, 2013
The reactivity of clay minerals leached in grafting reactions was investigated. Precursor solids were prepared by treating the sodium vermiculites with nitric acid solutions at several concentrations.
Ana P. M. Alves, Maria G. Fonseca, Albaneide Fernandes Wanderley   +2 more
doaj   +3 more sources

Direct Phosphoric Acid Leaching of Bauxite Residue for Selective Scandium Extraction

Metals, 2022
Bauxite residue, the high alkaline and fine-grained byproduct of Bayer process for alumina’s production, is a material rich in numerous minerals and elements of high value and techno-economical interest in high tech applications such as rare earths ...
Lamprini-Areti Tsakanika, George Panagiotatos, Theopisti Lymperopoulou, Elias Chatzitheodoridis, Klaus Ochsenkühn, Maria Ochsenkühn-Petropoulou   +5 more
doaj   +1 more source

Nitrate leaching in grazed grasslands of different composition and age [PDF]

, 2002
In a field experiment at Research Centre Foulum a suction cup technique was used to investigate nitrate leaching from grassland depending on composition (grass-clover or perennial ryegrass), management (grazing or cutting) and age of the swards.
Eriksen, J., Vinther, F.P.
core   +1 more source

Selective Leaching for the Recycling of Lithium, Iron, and Phosphorous from Lithium-Ion Battery Cathodes’ Production Scraps

Batteries
The market for lithium iron phosphate (LFP) batteries is projected to grow in the near future. However, recycling methods targeting LFP batteries, especially production scraps, are still underdeveloped.
Martina Bruno, Carlotta Francia, Silvia Fiore   +2 more
doaj   +1 more source

LEACH'S SELECTIONS FROM GREGORY, &c. [PDF]

The Lancet
n ...
openaire   +2 more sources

Optimization of Recovery of Valuable Metals from Lead Smelting Water Quenching Slags by Response Surface Methodology

Kuangchan zonghe liyong
Water quenching slags were leached by oxygen pressure at the acidic conditions. The effects of ratio of oxygen pressure temperature, sulfuric acid concentration, liquid-solid ratio on the selective leaching were investigated using response surface ...
Hui LI, Lin ZOU, Chao QU
doaj   +1 more source

The Development of Innovated Complex Process for Treatment of Old Flotation Tailings of Copper-Zinc Sulfide Ore

Molecules
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied.
Khussain Valiyev, Aliya Bugubaeva, Aleksandra Nechaeva, Alena Artykova, Vitaliy Melamud, Devard Stom, Anna Boduen, Aleksandr Bulaev   +7 more
doaj   +1 more source

Nitrogen leaching from organic agriculture and conventional crop rotations (France) [PDF]

, 2013
A great challenge to science is to elucidate how agriculture can feed the increasing world population without damaging the environment, while preserving other resources such as freshwater.
Benoit, M., Garnier, J., Azougui, A., Billen, G., Mercier, B.   +4 more
core   +1 more source

Selective Leaching of Molybdenum from Bulk Concentrate by Electro-Oxidation

Metals, 2021
This paper proposes selective leaching of molybdenum from Mo/Cu complex bulk concentrates in a 5 M NaCl solution using the electro-oxidation method. Here, the effects of several factors such as pH, pulp density, current density, and temperatures were ...
Kyeong Woo Chung, Ho-Sung Yoon, Chul-Joo Kim, Ho-Seok Jeon   +3 more
doaj   +1 more source