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US4826802A
US4826802A US07/159,997 US15999788A US4826802A US 4826802 A US4826802 A US 4826802A US 15999788 A US15999788 A US 15999788A US 4826802 A US4826802 A US 4826802A Authority US Unite
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US3574606A
US3574606A US742167A US3574606DA US3574606A US 3574606 A US3574606 A US 3574606A US 742167 A US742167 A US 742167A US 3574606D A US3574606D A US 3574606DA US 3574606 A US3574606 A US 3574606A Authority US United States Prior art keywords tellurium briquet tellurium dioxide recovery turnings Prior art date Legal …
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An unknown compound containing tellurium and bromine is …
An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of the compound by mass is composed of tellurium. a) What quantity in moles of Te are present in 100.00 g of the compound? ... Used to pour liquids into containers with small openings or to hold filter paper (unfenl)_____7. Mixing a small amount of ...
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Semiconducting Polymers Containing Tellurium: …
The use of polymers containing tellurophene, the tellurium analogue of the well-studied thiophene, has only recently begun to emerge in the literature. New synthetic routes have been developed, and there now exist a handful of tellurophene-containing polymers that have been synthesized and used to fabricate OPVs and OFETs. Their
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Tellurium-containing Chalcogen Rings
Keywords: Tellurium sulfides, tellurium selenium sulfides, ab initio MO calculations, NMR spectroscopy INTRODUCTION It is well-known that sulfur and selenium form a wide variety of homocyclic molecules as well as heterocyclic selenium sulfides. ' The information on the tellurium-containing chalcogen rings, how- ever, is much sparser.
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Extraction of tellurium from lead and copper bearing feed …
A process has been described in which raw slimes that contain tellurium are mixed with other materials containing precious metals and charged into a small reverberatory furnace …
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Semiconducting Polymers Containing Tellurium: Perspectives …
The development of high-carbon-content polymers for optoelectronics is an area of intense research; however, carbon-rich materials have certain limitations that arise from their composition. Some of these limitations can be overcome by the judicious incorporation of heavier elements which do not significantly change the carbon content to a point where it adversely …
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Evaluation of Tellurium as a Fuel Additive in Neodymium-Containing …
For each composition in Table 7 the element at the end is the one for which enthalpy of mixing was calculated within a matrix containing all the previous element(s). The enthalpy of mixing of Te inside the α-U matrix is slightly positive, i.e., 0.16 eV, whereas that of Te in the U-Zr system is negative, −0.28 eV.
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Tellurium-Containing Heterocycles with Two Heteroatoms
The starting point of tellurium organic chemistry dates back to 1840 when the first representative of tellurium-containing organic compounds, diethyl telluride, was synthesized by Woehler. The rapid development of organotellurium chemistry in the past decades has been accompanied by an equally rapid expansion of another domain that relates to ...
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(PDF) Data-Driven Investigation of Tellurium-Containing
A linear relationship can be observed between the H and CHO adsorption energies across the studied tellurium-containing materials (slope of 0.72, an intercept of −1.71, an R 2 value of 0.86, a p ...
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Tellurium Enrichment in Copper Tailings: A …
As the global demand for tellurium (Te) increases, it is crucial to develop efficient recovery methods that consider existing supply streams. This research combines gravity separation and froth flotation processes to enhance …
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Tellurium, from Copper Anode Slime to High Purity Product: …
Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery method strongly …
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US20160296489A1
Novel formulations of tellurium-containing compounds, which are suitable for topical application, are disclosed. The formulations are characterized by high chemical and physical stability and are easy to handle and use. US20160296489A1 - Topical formulations of tellurium-containing compounds - Google Patents ...
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(PDF) Tellurium(IV) Complexes Containing Bidentate Schiff Base …
Tellurium(IV) Complexes Containing Bidentate Schiff Base and their Biological Activities. April 2018 ... The Schiff base was prepared by mixing equi molecular qua ntity of o-hydroxybenzalde hyde ...
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US5939042A
the present invention relates to a method for extracting tellurium from tellurium-containing materials, and more particularly copper electrorefining slime. a copper anode made of about 99.8%...
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Photoactivity and optical applications of organic materials containing
Sulfur-containing compounds, particularly derivatives of thiophene, are well studied for organic optoelectronic applications. Incorporating selenium or tellurium in place of sulfur imparts ...
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CN102392141A
The invention relates to a method for separating tellurium from precious metals, belonging to the field of rare non-ferrous metal metallurgy and precious metal metallurgy. In the invention, a low temperature oxidization-alkaline water leaching method is adopted, the flow is simple, the selenium and tellurium leaching rate is high, the precious metals are not oxidized and all kept …
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An environmental-friendly process for recovery of tellurium and …
A simple strategy is developed for the extractive spectrophotometric determination of tellurium(IV) by using sulfur containing reagent, 4-(4'-chlorobenzylideneimino)-3-methyl-5-mercapto-1, 2, 4 ...
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US9700536B2
the formulations described herein are easily prepared by mixing a tellurium-containing compound and a carrier, as these are defined herein. the mixing is conducted at a temperature range of about 10° C. to about 100° C. tellurium-containing compounds were found exceptionally effective in treating skin and mucosal membrane ailments, ...
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Separation of tellurium by solvent extraction method
A method for separating tellurium includes separating and recovering tellurium (Te) from a dissolved solution containing the tellurium using a solvent extraction by an extractant, which...
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Tellurium(IV) Complexes Containing Bidentate Schiff Base …
Tellurium(IV) Complexes Containing Bidentate Schiff Base and their Biological Activities ANJU MALIK, K.K.VERMA and SAPANA GARG * Department of Chemistry, Maharshi Dayanand University, Rohtak-124001, India ... The Schiff base was prepared by mixing equimolecular quantity of o-hydroxybenzaldehyde (0.08 mole, 9.76 g) and 3-aminopyridine (0.08 mole ...
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Theoretical precipitation modeling and multidimensional
A study on resulfurized free-machining steel containing a small amount of tellurium. Denki Seiko (Electr. Furn. Steel) (1982) S. Hosseini et al. An in-situ scanning electron microscopy study of the bonding between MnS inclusions and the matrix during tensile deformation of hot-rolled steels. Metall. Mater. Trans.
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(PDF) Exploring synthetic avenues for the effective synthesis of
Various selenium-and tellurium-containing molecules are able to modulate the intracellular redox state of cells, an effect which may be used for the (selective) targeting of cancer cells, which are naturally under oxidative stress (OS). ... These reactions expand the concept of 'building blocks' and allow a wide range 'mix and match ...
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Reactive Oxygen Species (ROS)-Responsive Tellurium-Containing
The diselenide-containing supramolecular polymers were fabricated by equimolarly mixing (FGGC11Se)2 and CB[8] in aqueous solution driven by host-guest interactions between cucurbit[8]uril (CB[8 ...
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Tellurium, from Copper Anode Slime to High Purity Product: …
describe the essential chemical principles of tellurium Fig. 2—Price of commercial-grade tellurium and production rate (excluding US production) from 2009 to 2019 (data from Ref. [7]). Fig. 3—World flow of tellurium production and consumption (data from Ref. [7]). METALLURGICAL AND MATERIALS TRANSACTIONS B VOLUME 51B, DECEMBER 2020—2557
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Tellurium-containing Polymers: Recent Developments and Trends
The obtained germole-containing polymer reveals the absorption onset (λonset) at 492 nm which is longer than those of the tellurophene-containing polymer and butadiene-containing polymer (λonset ...
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Tellurium-based coating for casting
Tellurium is a kind of exotic material, be a kind of between metal and nonmetal between transition element, show slightly metallic luster, but do not have ductility, easily pulverize, the atomic number of tellurium is 52, atomic weight 127.6, fusing point 452 DEG C, boiling point 1390 DEG C, density 6.25g/cm 3, be hexagoinal lattice time solid-state.The microstructure and property of …
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Glutathione Reductase-Mediated Synthesis of Tellurium-Containing
A similar mechanism most likely occurs with TeNSs. The soluble tellurium derivative released by Te-containing NSs is probably tellurite, which in turn can damage E. coli cells . Tellurite release was suggested by TEM, with the observation of tellurium nanorods inside E. coli after being exposed to Te-based nanostructures (not shown). These ...
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Composition of tellurium-containing middling.
The results show that copper telluride is oxidized through intermediate compounds to the most stable tellurate (Cu3TeO6) at low temperatures. The increase in the roasti... ... humidity of the...
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Phase Transformations and Tellurium Recovery from …
The tellurium-containing middling (Cu 2 Te) used in our study was obtained from copper electrolyte slime at the refinery of Kazakhmys Smelting LLP (Balkhash, the Republic of Kazakhstan).
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