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Showing 1 to 20 of 47 for “"molybdate"”.
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Crystallization Characteristics of Lead-Molybdate in Low Temperature Enamels
Made available in DSpace on 2014-12-05T22:57:05Z (GMT). No. of bitstreams: 1 6303197.pdf: 3478574 bytes, checksum: 0dd7757189cde4eef487f13cbb7157b8 (MD5) Previous issue date: 1962
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Vapour phase catalytic oxidation of 2-methylpropene over bismuth molybdate catalysts.
… temperature range 390°C-560°C. Bismuth molybdate supported on zirconium oxide, an n-type catalyst was used. The effect of various process variables, namely the feed ratio of oxygen to 2-methylpropene, reaction temperature, and the reciprocal of space velocity on the conversion of olefin …
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Investigation into the Magnetoelectric Effect and Magnetic Properties of Iron-doped Cobalt Molybdate
… coupling is investigated in the cobalt molybdate (Co2Mo3O8). Recently, Wang et al.[Scientific Reports. 2015;Vol. 5:Article 12268] showed that iron molybdate(Fe2Mo3O8) can be induced into a ferrimagnetic state from a nominal antiferromagnetic state via application of a magnetic field. As …
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Ammoxidation of propene over iron promoted bismuth molybdate for the production of acrylonitrile
… aim of this study is to prepare pure bismuth molybdate (α-phase) followed by iron impregnation at different ratios of iron to bismuth. The influence of iron in the ammoxidation of propene for the formation of an acrylonitrile is to be investigated.
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Darstellung und Charakterisierung ternärer Molybdate in den Systemen M - Mo - O (M = Sn, Pb, Sb)
Das Phasendiagramm Sn - Mo - O wurde für 500°C und 1000°C experimentell abgeleitet. Als ternäre Phasen konnten SnMo2O8 und Sn1-xMo4-yO6-2y dargestellt werden. Die Phasen SnMo5O8 und Sn4,4Mo24O38 konnten unterhalb von 1000°C nicht dargestellt werden. Die Phase SnMo2O8 wurde über Festkörper - …
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Studies of an alkali impregnated cobalt-molybdate catalyst for the water-gas shift and the methanation reactions
… catalyst, an alkali impregnated cobalt0-molybdate on an A1 203 support, for the water-gas shift, methanation, and ethanol dehydration reactions, we can make the following conclusions: 1. The cesium-impregnated "Aldridge" catalyst is highly active for the water-gas shift reaction under …
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On Competitive Adsorption of Oxyanions by Soils (Freundlich Equation, Enthalphy of Adsorption, Selectivity Coefficient, Anion Mixtures, Anion)
… (binary-solute combinations of arsenate, molybdate, and phosphate) by three soil samples (Cecil clay, EPA-14, and Catlin silt loam) was investigated using batch equilibrium techniques. The adsorption of arsenate and molybdate by all three soils was significantly reduced by the presence of …
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Uso da torta de filtro e do molibdato de potássio em cana-de-açucar
… about the use of filter cake and potassium molybdate on morphological variables, technological and productivity. With the management practices adopted in the soil, the filter cake is an excellent organic product for the remediation of soil and moisture retention. Although there is no direct …
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Anaerobic biodegradation of selected organic compounds with and without inhibition of sulfate reducing bacteria
… biodegradation were only slightly altered in molybdate amended microcosms indicating that methanol is a noncompetitive substrate in Blacksburg soil. MTBE biodegradation was slow and followed first order kinetics with respect to initial concentration. Molybdate had no affect on MTBE …
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The acute toxicity of molybdenum to the bluegill
… hour TLm value for molybdenum as sodium molybdate to bluegills was determined as 1320 ppm molybdenum in ion-free water.
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Control of anthracnose (caused by Colletotrichum gloeosporioides s.l.) on mango in Senegal by fungicides and biofungicides
… (Bacillus subtilis strain QST 713), and sodium molybdate provided 63%, 67% and 76% control of disease severity, respectively, whereas thiophanate methyl and azoxystrobin provided 77% and 78% control, respectively. Disease severities of all treatments were significantly lower than that of the …
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ΜΕΛΕΤΗ ΤΟΥ ΥΠΟΔΟΧΕΑ ΤΗΣ ΠΡΟΓΕΣΤΕΡΟΝΗΣ ΣΤΗΝ ΑΝΘΡΩΠΙΝΗ ΜΗΤΡΑ: ΧΑΡΑΚΤΗΡΙΣΜΟΣ ΚΑΙ ΚΑΘΑΡΙΣΜΟΣ ΤΟΥ ΜΟΡΙΟΥ
… ENZYMES. PROTEASE INHIBITORY AND SODIUM MOLYBDATE ARE USED FOR THE CONTROL OF PROTEOLYSIS AND THE PROTECTION OF THE HOLORECEPTOR. PROGESTERONE RECEPTOR HAS BEEN STUDIED FOR PROGESTERONE SPECIFICITY AS COMPARED TO OTHER STEROID HORMONES AND RELATIVE PARAMETERS WERE DETERMINED. ANALYTICAL …
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Determining phosphate levels in natural water using a novel electrochemical measurement device
… (PMB) method. In this method, the phosphate and molybdate ion form 12-molybdophosphoric acid (12-MPA) which is reduced to yield intensely coloured PMB, and its intensity is correlated with the phosphate concentration using spectrophotometry. Despite its well-established sensitivity and …
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The dissolution rates of amorphous silica and opal-CT
… NaCI solution from 25°C to 75°C were measured by molybdate blue method and determined by initial rate method. The specific surface area of the samples were determined by N2 BET procedure. XRD patterns were obtained to check the crystallinity of these samples. Dissolution experiments show that …
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Carbon dioxide utilization : from fundamental reactivity to catalysis using transition metals supported by macrocyclic diphosphines
Molybdate, a molecular metal oxide, readily binds CO₂ at room temperature to produce a robust monocarbonate complex, [MoO₃(k²-CO₃)]²-. In the presence of excess CO₂, a pseudo-octahedral dioxo dicarbonate complex, [MoO₃(k²-CO₃)₂]²-, is formed. The monocarbonate [MoO₃(k²-CO₃)]²- reacts with …
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Variations in the biodegradation potential of subsurface environments for organic contaminants
… nitrite, sulfate) or metabolic inhibitors (molybdate, BESA) to promote different pathways of anaerobic microbial metabolism (nitrate respiration/denitrification, sulfate reduction, or methanogenesis). In unamended systems, biodegradation rates varied considerably between sites. Methanol and …
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A structural and reactivity study of lithium molybdenum nitride
… be formed from the direct ammonolysis of lithium molybdate (Li2MoO4), although it has proved challenging to produce the nitride as a single phase material. The “LiMoN2” samples were observed to be catalytically active for ammonia synthesis in reaction with nitrogen containing feed gas (25% N2/H2). …
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FLOW INJECTION TECHNIQUES FOR INVESTIGATING THE BIOGEOCHEMISTRY OF NUTRIENTS IN NATURAL WATERS
… such as the Tamar Estuary. The effects of [H+]:[molybdate] ratio, temperature and matrix interferences were systematically investigated. Typical figures of merit were; typical RSDs of 1.5%, a practical limit of detection of 2 µg P Lˉ¹ and a linear range of 2 - 100 µg P Lˉ¹ at 30 °C. This was the …
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