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US Patent for Lithium

The adsorbents and separation methods are particularly useful for the selective adsorption of nitrogen from air In one aspect the adsorbent comprises an ion exchange zeolite X and preferably zeolite LSX (low silica zeolite X) The zeolite is most preferably a lithium-based zeolite Get price

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Study of zeolite influence on analytical characteristics

27-9-2019inproceedings{Shelyakina2014StudyOZ title={Study of zeolite influence on analytical characteristics of urea biosensor based on ion-selective field-effect transistors} author={Margaryta K Shelyakina and Oleksandr O Soldatkin and Valentyna N Arkhypova and Berna Ozansoy Kasap and Burcu Akata andGet price

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Shape

We present a direct zeolite-based catalytic process which converts lactic acid into lactide The shape-selective properties of zeolites are essential to attain record lactide yields outperforming those of the current multistep process by avoiding both racemization and side-product formation Get price

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Acetylene

26-6-2019The selective hydrogenation of alkynes to alkenes is an important type of organic transformation with large-scale industrial applications This transformation requires efficient catalysts with precise selectivity control and palladium-based metallic catalysts are currently employed Here we show that four-coordinated cationic nickel Get price

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ZEOLITE

ZEOLITE Zeolite The term ZEOLITE is used to define a large number of crystalline inorganic solids based on aluminium silicates and other metals such as sodium potassium calcium etc The ZEOLITES may have a natural or synthetic origin Their selective ionic exchange property Get price

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Selective Removal of Radioactive Cesium from Nuclear

Selective ion-exchange with zeolites has been considered as one of the most promising means to remove a radioactive isotope of cesium ⁷Cs present in low concentration in seawater However there has been no report on the fundamental structure–property relation of zeolite-based Cs ion-exchangers Get price

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Study of zeolite influence on analytical characteristics

Biosensors Based on Nano-Gold/Zeolite-Modified Ion Selective Field-Effect Biosensors Based on Nano-Gold/Zeolite-Modified Ion Selective Field-Effect Transistors for Creatinine Detection Study of zeolite influence on analytical characteristics of urea biosensor based on ion-selective Get price

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Substrate Size‐Selective Catalysis with Zeolite

Takayuki Iida Daniela Zanchet Koji Ohara Toru Wakihara and Yuriy Romn‐Leshkov Concerted Bimetallic Nanocluster Synthesis and Encapsulation via Induced Zeolite Framework Demetallation for Shape and Substrate Selective Heterogeneous Catalysis Angewandte Chemie International Edition 57 22 (6454-6458) (2018) Get price

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Zeolite based films membranes and membrane reactors

Zeolite based films membranes and membrane reactors Progress and prospects E E McLeary a J C Jansen a b * F Kapteijn c a Department of Chemistry and Polymer Science University of Stellenbosch Stellenbosch 7602 South AfricaGet price

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Shape

3-7-2015We present a direct zeolite-based catalytic process which converts lactic acid into lactide The shape-selective properties of zeolites are essential to attain record lactide yields outperforming those of the current multistep process by avoiding both racemization and side-product formation Get price

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Selective impedance based gas sensors for hydrocarbons

Read Selective impedance based gas sensors for hydrocarbons using ZSM-5 zeolite films with chromium(III)oxide interface Sensors and Actuators B Chemical on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips Get price

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Zeolite

Request PDF on ResearchGate | Zeolite-based Optical Fibre Sensor for Selective Sensing of Alcohols in Water | By directly growing a zeolite thin film on an optical fibre end-face a sensor has been realized that responds to the presence of various concentrations of isopropanol whilst giving no response to various ethanol concentrations Get price

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Selective Removal of Metal Ions from Crude Oil using

Abstract- The removal efficacy of three synthetic zeolite materials for the selective removal of metal ions from crude oil was investigated The zeolite materials used for the study include zeolite A zeolite Y and zeolite K-L Nickel vanadium and sulphur were the target metals due to the problems they poseGet price

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Four

an impedance based selective ammonia sensor [7] As the mobility of the cations depends on the ammonia concentration this effect is volume based Electrode effects do not play a role for this sensor More aspects and references on recent developments in the field of zeolite-based gas sensors can be obtained from the review articles [8] and [9] Get price

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Local dynamics of copper active sites in zeolite catalysts

In Cu-zeolite based selective catalytic reduction of NO x with NH 3 (NH 3-SCR) Cu species (in particular Cu I) solvated by NH 3 molecules are predicted theoretically to be highly mobile with their mobility being decisive for the NH 3-SCR reactivity at low temperatures (250 C) Get price

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Cancer Killers

Cancer Killers A comprehensive approach to killing cancer using powerful supplements Learn about strong natural cancer killers that work without damaging healthy cells such as Liquid Zeolite Enhanced with DHQ and Zormus See how they fit into an effective strategy to eliminate your cancer Get price

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Selective preparation of zeolite X and A from flyash and

Selective preparation of zeolite X and A from flyash and its use as catalyst for biodiesel production Vikranth Volli M K Purkait∗ Department of Chemical Engineering Indian Institute of Technology Guwahati 781039 Assam India highlights • Flyash was utilized for zeolites preparation for transesterification Get price

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Zeolite Nanoparticles for Selective Sorption of Plasma

30-11-2015Zeolite Nanoparticles for Selective Sorption of Plasma Proteins Zeolite Nanoparticles for Selective Sorption of Plasma Proteins This correction is based on the protein size and evaluates the real contribution of each protein present in the corona of zeolite nanoparticles Get price

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Buy Zeolite Clinoptilolite for DETOX

There are more than 45 different naturally occurring Zeolites of which the clinoptilolite Zeolite in particular is suitable for ingestion in the form of CE-certified medical devices such as our Zeolite MED To make it more effective the clinoptilolite Zeolite is micronized and activated Get price

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Selective methane chlorination to methyl chloride by

Three different catalytic systems based on Y zeolite were tested for enhancement of CH 4 conversion and CH 3 Cl selectivity (i) HY zeolites in H +-form having various Si/Al ratios (ii) Pt/HY zeolites supporting Pt metal nanoparticles (iii) Pt/NaY zeolites in Na +-form supporting Pt metal nanoparticles Get price

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DE

DE-FE0001322 Hydrogen Selective Exfoliated Zeolite Membranes Proposal in response to Funding Opportunity NO DE-PS26-08NT00699-01 Pre-combustion carbon capture technologies for coal-based gasification plants Topic Area 1 – High-Temperature High-Pressure Membranes Michael Tsapatsis (PI) and Prodromos Daoutidis (co-PI)Get price

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(PDF) Design and Development of Zeolite

Processes for the production of xylenes which occur in an integrated aromatic complex are discussed A brief overview of the work carried out at Indian Petrochemicals Corporation Limited for the development of zeolite-based catalytic processes forGet price

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CO selective oxidation using catalytic zeolite membranes

AB - Traces of CO in hydrogen rich gas streams poison the anode of proton exchange membrane fuel cells reducing their power output and decreasing the cell life This paper investigates the CO selective oxidation in simulated reformate gas by using catalytic zeolite membranes Get price

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Selective Catalytic Reduction of NOx over Zeolite

The reactors used for Selective Catalytic Reduction (SCR) of NOx require low pressure drop structured catalyst packing Structured packings such as ceramic s are gaining increasing interest for application in low pressure drop reactors membrane reactors and catalytic distillation units In this work cobalt ion exchanged mordenite (Co Get price

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Influence of Composition of Zeolite/Enzyme

As seen posite based on different types of zeolites with varying par- the response of biosensor as well as the reaction rate with- ticle sizes and Si/Al ratios on the analytical characteristics out zeolite is faster with respect to the one with BEA of urea biosensors based on ion-selective field-effect tran- nanobiocomposite Get price

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Shape

We present a direct zeolite-based catalytic process which converts lactic acid into lactide The shape-selective properties of zeolites are essential to attain record lactide yields outperforming those of the current multistep process by avoiding both racemization and side-product formation Get price

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Zeolite

13-8-2002Zeolite-based catalyst material the preparation thereof and the use thereof for the selective dehydrogenation of N-butane A further object of this invention is to provide a method for making a zeolite-based catalyst that can be utilized in the dehydrogenation of n-butane to butenes Get price

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zeolite

Zeolite any member of a family of hydrated aluminosilicate minerals that contain alkali and alkaline-earth metals The zeolites are noted for their lability toward ion-exchange and reversible dehydration Learn more about the characteristics and structure of zeolites in this article Get price

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Zeolite membranes for chemical separation

His zeolite membranes are capable of separating several of the most important chemical feedstocks with excellent selectivity Petroleum is a very rich source of hydrocarbon-based chemicals As well as its value for refining into fuels a significant proportion of the world's petroleum use is for the refinement and separation of chemical species for chemical feedstocks Get price

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Development of a selective gas sensor utilizing a perm

Development of a selective gas sensor utilizing a perm-selective zeolite membrane W L RAUCH∗ M LIU Georgia Institute of Technology School of Materials Science and Engineering Atlanta GA 30332-0245 USA E-mail bill rauchmse gatech edu Reported here is a novel sensor that utilizes a zeolite film to selectively limit gas exposure ofGet price

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