Results 21 to 30 of about 145,291 (286)

Enhanced production of periplasmic interferon alpha-2b by Escherichia coli using ion-exchange resin for in situ removal of acetate in the culture [PDF]

open access: yes, 2011
The possibility of using in situ addition of anion-exchange resin for the removal of acetate in the culture aimed at improving growth of E. coli and expression of periplasmic human interferon-α2b (PrIFN-α2b) was studied in shake flask culture and stirred
Ariff, Arbakariya   +4 more
core   +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

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

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

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

Fate and impact of organics in an immersed membrane bioreactor applied to brine denitrification and ion exchange regeneration [PDF]

open access: yes, 2010
The application of membrane bioreactors (MBRs) to brine denitrification for ion exchange regeneration has been studied. The developed culture was capable of complete brine denitrification at 50 gNaCl.l−1.
Judd, Simon J.   +2 more
core   +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

Biological Ion Exchanger Resins

open access: yesBiophysical Journal, 1971
ABsrRACT Utilizing Escherichia coli as the prototype of an ion-accumulating cell, the ion exchange isotherm is introduced as a concise method of characterizing biological ion exchange events. The ion exchange isotherm for the alkali cation exchange, K 4-> Na, is described. The total charge proffle of this bacterium is compiled and compared for bacteria
openaire   +2 more sources

Thermodynamic Model of Ion-Exchange Process as Exemplified by Cerium Sorption from Multisalt Solutions

open access: yesЗаписки Горного института, 2019
A complex heterogeneous process of ion exchange can be defined with an isotherm-isobar equation of the chemical reaction, which describes differential affinity between the process and its effect – the law of mass action.
O. V. Cheremisina   +3 more
doaj   +1 more source

Ion-exchange hollow fibers [PDF]

open access: yes, 1976
An ion-exchange hollow fiber is prepared by introducing into the wall of the fiber polymerizable liquid monomers, and polymerizing the monomers therein to form solid, insoluble, crosslinked, ion-exchange resin particles which embed in the wall of the ...
Klein, E., Rembaum, A., Yen, S. P. S.
core   +1 more source

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