نتایج جستجو برای: cation exchange resin

تعداد نتایج: 268968  

Journal: :Journal of animal science 1983
M S Carson T K Smith

Experiments were conducted to determine the effect of bentonite and nonnutritive dietary polymers on toxicity and metabolism of T-2 toxin in rats. Male weanling rats were fed diets containing 5% bentonite, anion exchange resin, cation exchange resin or vermiculite-hydrobiotite. Each diet was fed with and without 3 micrograms T-2 toxin/g of feed for 2 wk. Bentonite and anion exchange resin were ...

2007

The acoustic properties of ion-exchange resins strongly depend on the hydration natures of counterions as well as the cross-linking percentage and base materials. In this paper, ionexchange resin particles are discriminated on the basis of the acoustic nature of counterions using a coupled acoustic-gravity field. Ion-exchange resin particles are aggregated at the equilibrium positions, which ar...

Journal: :Chemie Ingenieur Technik 2022

Isolation of carboxylic acids from dilute aqueous effluents can be achieved by the combination liquid-phase catalyzed reaction with liquid-liquid extraction. Exemplarily heterogeneously esterification acetic acid methanol, accelerated a cation-exchange resin and simultaneous transfer product methyl acetate into solvent ShellSol T, was successfully performed in Taylor-Couette disc contactor (TCD...

Journal: :Talanta 2009
Tomotaka Iwata Masanobu Mori Hideyuki Itabashi Kazuhiko Tanaka

In this study, a cation-exchange resin (CEX) of the K(+)-form, i.e., an enhancer resin, is used as a postcolumn conductimetric enhancer in the ion-exclusion chromatography of aliphatic carboxylic acids. The enhancer resin is filled in the switching valve of an ion chromatograph; this valve is usually used as a suppressor valve in ion-exchange chromatography. An aliphatic carboxylic acid (e.g., ...

2000
Daniel Darbouret Ichiro Kano

Weakly charged elements, or elements that are not well dissociated in water, are not removed ef®ciently by conventional water-puri®cation technologies. In the production of high-purity water, silica and boron are generally the ®rst ions to breakthrough into puri®ed water when the ion-exchange resin approaches depletion. In this study, the behavior of these two elements was studied through vario...

Journal: :Journal of hazardous materials 2009
Zhihui Yu Tao Qi Jingkui Qu Lina Wang Jinglong Chu

Experimental measurements have been made on the batch ion exchange of Ca(II) and Mg(II) from potassium chromate solution using cation exchanger of Amberlite IRC 748 as K+ form. The ion exchange behavior of two alkaline-earth metals on the resin, depending on contact time, pH, temperature and resin dosage was studied. The adsorption isotherms were described by means of the Langmuir and Freundlic...

Journal: :journal of cellular and molecular anesthesia 0
nima padashi department of chemical engineering, science and research branch, islamic azad university, tehran, iran mehdi arjmand south tehran branch, islamic azad university, tehran, iran samira rajaei md, phd, assistant professor, immunology dept., tehran university of medical sciences, tehran, iran ali dabbagh professor of cardiac anesthesia; anesthesiology research center, shahid beheshti university of medical sciences, tehran, iran

introduction : albumin, one of the most important plasma proteins, has a difficult process of synthesis and production. we compared two different methods for albumin purification: carboxymethyl cellulose (cm cellulose) resin exchange and diethylaminoethyl cellulose (deae cellulose) resin exchange in order to determine which resin could be more beneficial. materials and methods : two ion exchang...

Journal: :Processes 2021

The insecticidal ingredient in a biogas solution being fully utilized by cation exchange resin to produce slow-release insecticide is of great social value. In this work, the feasibility ammonia nitrogen slurry loaded on as was evaluated studying effect adsorption and slow release resin. effects concentration, dosage, time pH value were studied. results showed that ion had good nitrogen. With i...

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