Results 21 to 30 of about 256,888 (333)

Preparation and Characterization of Polyamidoxime Chelating Resin from Rubberwood Fibre-G-Polyacrylonitrile

open access: yesAdsorption Science & Technology, 2009
Grafted rubberwood fibre was converted to polyamidoxime ion-exchange resin in order to remove heavy metal ions from aqueous solution. The cation-exchange resin existed predominantly in the syn -hydroxyamino form. The water uptake by the resin was ca.
Faraj A. Abuilaiwi   +5 more
doaj   +1 more source

Ion-exchange-resin-catalyzed adamantylation of phenol derivatives with adamantanols: Developing a clean process for synthesis of 2-(1-adamantyl)-4-bromophenol, a key intermediate of adapalene

open access: yesBeilstein Journal of Organic Chemistry, 2012
A clean process has been developed for the synthesis of 2-adamantylphenol derivatives through adamantylation of substituted phenols with adamantanols catalyzed by commercially available and recyclable ion-exchange sulfonic acid resin in acetic acid.
Nan Wang   +3 more
doaj   +1 more source

Selective Extraction of Cobalt and Copper from Chilean Mine Water by Ion Exchange Resin

open access: yesГорные науки и технологии, 2020
Heavy metal-containing waste has become one of heavy environmental problems. Processing of such waste accumulated at waste dumps to extract valuable components is commercially beneficial activity and, in addition, decreases environmental impact.
J. Abeywickrama   +3 more
doaj   +1 more source

HSS anions reduction combined with the analytical test of aqueous MDEA in South Pars gas complex

open access: yesNatural Gas Industry B, 2022
Heat stable salts (HSS) form in amine systems as a result of the reaction products of the amine and acidic compounds stronger than H2S and CO2 in the inlet stream to the gas treating unit (GTU).
Seyed Ali Akbar Mansoori   +6 more
doaj  

The removal of toxic metals from liquid effluents by ion exchange resins. Part XVIII: Vanadium(V)/H+/Amberlite 958

open access: yesRevista de Metalurgia, 2022
The ion exchange resin Amberlite 958 was used to investigate its behaviour on the removal of hazardous vanadium(V) from aqueous media. This investigation was carried out under various hydrodynamic conditions and chemical conditions, such as variation of
Francisco José Alguacil   +1 more
doaj   +1 more source

EXTRACTION METHODS AND POTASSIUM AVAILABILITY FOR SOYBEAN IN THE PARANA STATE’S SOILS, BRAZIL

open access: yesRevista de Agricultura Neotropical, 2015
Evaluating the potassium (K) availability to the plants can be performed by different methods. In general, multielement methods are employed and they are used for K due to increase operational of soil testing laboratory. The efficacy of ammonium acetate,
Fábio Steiner   +4 more
doaj   +1 more source

Optimasi Biaya dalam Proses Pemurnian Metanol untuk Mengurangi Resin sebagai Limbah Bahan Berbahaya dan Beracun di PT Kaltim Methanol Industri

open access: yesJurnal Rekayasa Proses, 2020
Purification process of raw methanol from its impurities to produce pure methanol at PT. Kaltim Methanol Industri (PT KMI) is carried out by several steps, including degassing, distillation, and adsorption.
Reno Imam Arthapersada   +6 more
doaj   +1 more source

Study of sulphate ions removal from acidic waters using ion exchange resin

open access: yesSelected Scientific Papers: Journal of Civil Engineering, 2018
Acid Mine Drainage (AMD) is the most common pollution related to mining. It consists of an aqueous solution containing high metals and sulphate concentration, which impact surface and groundwater and lead to serious environmental problems.
Pavlikova Petra   +2 more
doaj   +1 more source

Water, electricity and ion exchange; how Hamish Small sustained the evolution of ion chromatography

open access: yesHeliyon, 2021
Since the development of synthetic ion exchange resins in 1935, the electrochemical properties of these unique materials have intrigued researchers. In 1951, Hamish Small was introduced to synthetic ion exchange resin when he studied the electromigration
John M. Riviello
doaj  

Semi-aerobic stabilized landfill leachate treatment by ion exchange resin: isotherm and kinetic study

open access: yesApplied Water Science, 2017
This study was carried out to investigate the treatability of ion exchange resin (Indion MB 6 SR) for the removal of chromium (VI), aluminium (III), zinc (II), copper (II), iron (II), and phosphate (PO4)3−, chemical oxygen demand (COD), ammonia nitrogen (
M. Zamri   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy