Results 21 to 30 of about 29,315 (256)

Preparation of Crown Ether Pillared Zirconium Phosphonate and Selective Adsorption for Strontium

Journal of Isotopes, 2021
Separation of strontium isotope is an important and challenging work. Herein, a novel method was developed for preparing of acid-resistance crown ether pillared zirconium phosphonate (D-AM-ZrP) by a directly one step reacting 4-amino-benzo-18-crown-6 ...
MU Wanjun;WEI Hongyuan;CHEN Baihua;LI Xingliang;YANG Yuchuan;PENG Shuming
doaj   +1 more source

Activation effect of Pb2+ in cassiterite flotation with styrene phosphonic acid as collector

工程科学学报, 2019
Metal ions have a very important influence on the flotation process of minerals, and some of them can activate minerals and thus yield an improvement in the flotation effect.
LI Yan-jun, LIU Chang, LIU Jie, GONG Gui-chen   +3 more
doaj   +1 more source

Determination of Polar Pesticides Based on a Modified QuPPe with Liquid Chromatography Coupled to Tandem Mass Spectrometry

Journal of Food Quality, 2023
An analytical approach for determining polar pesticides using a Hypercarb column that is based on a modified quick polar pesticide (QuPPe) extraction process combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was examined.
Gözde Türköz Bakirci
doaj   +1 more source

Comparison of phosphorus-based extractants on manganese separation from citrate leach solutions for recycling of lithium-ion batteries

South African Journal of Science, 2023
The performance requirements of modern lithium-ion batteries (LIBs) necessitate the use of a number of scarce and strategically sensitive metals such as lithium and cobalt.
Tiaan Punt, Robert C. Luckay, Guven Akdogan, Steven M. Bradshaw, A. Petrie van Wyk   +4 more
doaj   +1 more source

Synthesis and characterisation of ferrocenyl-phosphonic and -arsonic [PDF]

, 2001
The ferrocene-derived acids FcCH₂CH₂E(O)(OH)₂ [4, E=P; 10, E=As; Fc=Fe(η₅-C₅H₅)(η⁵-C₅H₄)] have been synthesized by the reaction of FcCH₂CH₂Br with either P(OEt)₃ followed by hydrolysis, or with sodium arsenite followed by acidification.
Alley, Steven R., Henderson, William
core   +2 more sources

Phosphonates and Phosphonic Acids: New Promising Corrosion Inhibitors

, 2023
In this chapter we present our published research results concerning the use of phosphonates and phosphonic acids synthesized in our laboratory as corrosion inhibitors. Firstly, the corresponding synthetic pathways used to prepare this type of inhibitors have been illustrated.
Nadjib Chafai, Khalissa Benbouguerra
openaire   +2 more sources

Corrosion processes controlled by phosphonic acid nano-layers [PDF]

, 2016
Self assembled monolayers (SAM) formed by fluoro-phosphonic and undecenyl-phosphonic acids on carbon steel surfaces as anticorrosive nanocoatings were investigated.
Abohalkuma, Talah, Shaban, Abdul, Telegdi, Lászlóné   +2 more
core   +2 more sources

Straightforward Immobilization of Phosphonic Acids and Phosphoric Acid Esters on Mesoporous Silica and Their Application in an Asymmetric Aldol Reaction

Nanomaterials, 2019
The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery.
Christian Weinberger, Tatjana Heckel, Patrick Schnippering, Markus Schmitz, Anpeng Guo, Waldemar Keil, Heinrich C. Marsmann, Claudia Schmidt, Michael Tiemann, René Wilhelm   +9 more
doaj   +1 more source

The Selection of Efficient Antiscalant for RO Facility, Control of Its Quality and Evaluation of the Economical Efficiency of Its Application

Membranes, 2023
Adsorption of polymeric inhibitor molecules to calcium carbonate crystal surface was investigated. Inhibiting efficiencies of phosphonic acid-based antiscalants are dependent on the amount of adsorbed material on the growing crystal surface.
Dmitry Spitsov, Htet Zaw Aung, Alexei Pervov   +2 more
doaj   +1 more source

Platinum(II) phosphonate complexes derived from endo-8-camphanylphosphonic acid [PDF]

, 2011
The reactions of cis-[PtCl₂L₂] [L = PPh₃, PMe₂Ph or L₂ = Ph₂P(CH₂)₂PPh₂ (dppe)] with endo-8-camphanylphosphonic acid (CamPO₃H₂) and Ag₂O in refluxing dichloromethane gave platinum(II) phosphonate complexes [Pt(O₃PCam)L₂].
Fortney-Zirker, Ryland G., Henderson, William, Lane, Joseph R., Leach, Meto T., Nicholson, Brian K., Turnbull, Mark M., Wilkins, Alistair L.   +6 more
core   +2 more sources