36results about "Aluminium sulfur compounds" patented technology

A method for the synthesis of compounds of the formula C-LixM1-yM'y(XO4)n, where C represents carbon cross-linked with the compound LixM1-yM'y(XO4)n, in which x, y and n are numbers such as 0<=x<=2, 0<=y<=0.6, and 1<=n<=1.5, M is a transition metal or a mixture of transition metals from the first period of the periodic table, M' is an element with fixed valency selected among Mg<2+>, Ca<2+>, Al<3+>, Zn<2+> or a combination of these same elements and X is chosen among S, P and Si, by bringing into equilibrium, in the required proportions, the mixture of precursors, with a gaseous atmosphere, the synthesis taking place by reaction and bringing into equilibrium, in the required proportions, the mixture of the precursors, the procedure comprising at least one pyrolysis step of the carbon source compound in such a way as to obtain a compound in which the electronic conductivity measured on a sample of powder compressed at a pressure of 3750 Kg.cm<-2 >is greater than 10<-8 >S.cm<-1>. The materials obtained have excellent electrical conductivity, as well a very improved chemical activity.

A method of preparing metal chalcogenides from elemental metal or metal compounds has the following steps: providing at least one elemental metal or metal compound; providing at least one element from periodic table groups 13-15; providing at least one chalcogen; and combining and heating the chalcogen, the group 13-15 element and the metal at sufficient time and temperature to form a metal chalcogenide. A method of functionalizing the surface of semiconducting nanoparticles has the following steps: providing at least one metad compound; providing one chalcogenide having a cation selected from the group 13-15 (B, Al, Ga, In, Si, Ge, Sn, Pb, P, As, Sb and Bi); dissolving the chalcogenide in a first solution; dissolving the metal compound in a second solution; providing and dissolving a functional capping agent in at least one of the solutions of the metal compounds and chalcogenide; combining all solutions; and maintaining the combined solution at a proper temperature for an appropriate time.

The present invention includes pure single-crystalline metal oxide and metal fluoride nanostructures, and methods of making same. These nanostructures include nanorods and nanoarrays.

The present invention relates to a method for preparing an electroactive metal polyanion or a mixed metal polyanion comprising forming a slurry comprising a polymeric material, a solvent, a polyanion source or alkali metal polyanion source and at least one metal ion source; heating said slurry at a temperature and for a time sufficient to remove the solvent and form an essentially dried mixture; and heating said mixture at a temperature and for a time sufficient to produce an electroactive metal polyanion or electroactive mixed metal polyanion. In an alternative embodiment the present invention relates to a method for preparing a metal polyanion or a mixed metal polyanion which comprises mixing a polymeric material with a polyanion source or alternatively an alkali metal polyanion source and a source of at least one metal ion to produce a fine mixture and heating the mixture to a temperature higher than the melting point of the polymeric material, milling the resulting material and then heating the milled material. It is another object of the invention to provide electrochemically active materials produced by said methods. The electrochemically active materials so produced are useful in making electrodes and batteries.

An antibacterial agent composed of silver-containing aluminum sulfate hydroxide particles represented by the following formula (X-I) or (Y-I).

(Ag_aB_b-a)_bAl_cA_x(SO₄)_y(OH)_z.pH₂O  (X-I)

[Ag_aB_b-a]_b[Ti_3-cAl_c](SO₄)_y(OH)_z.pH₂O  (Y-I)

The above antibacterial agent of the present invention provides antibacterial molded articles and further antifungal agents, cosmetics, antibacterial paper, antibacterial deodorizing sprays and agricultural chemicals when it is mixed with a resin.

The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.

As population density increases, the transportation of hazardous chemicals, including acids and disinfectants, lead to an increased incidence of spills while the consequences of spills become more serious. While solutions of halide acids, hypohalites and halites are safer disinfectants for transportation, handling, storage and use than traditional gaseous chlorine, the manufacturing cost of these disinfectants has here-to-fore limited their use. Economical processes are presented for the manufacture of O₂, halogen oxides, halide acids, hypohalites, and halates; as well as polynucleate metal compounds, metal hydroxides and calcium sulfate hydrate (gypsum). The instant invention presents methods and processes that incorporate the use of sulfur. This is while environmental regulators, such as the US EPA, require an increased removal of sulfur from hydrocarbon fuels, thereby creating an abundance of sulfur, such that the refining industry is in need of a way to dispose of said abundance of sulfur.

The invention relates to a method for preparing aluminum hydroxide sulfate. The method comprises the steps of preparing a sodium aluminate solution, and obtaining aluminum hydroxide through a method of adding seed crystals or introducing carbon dioxide; dissolving aluminum sulfate, so that an aluminum sulfate solution is obtained, adding aluminum hydroxide to the aluminum sulfate solution, placing the mixture into a reaction kettle, heating the mixed materials to 90-250 DEG C under the stirring condition, and conducting a reaction for 5-10 minutes, so that the aluminum hydroxide sulfate is obtained. The technological process of preparing the aluminum hydroxide sulfate is simple, and by changing the amount of added aluminum hydroxide, the aluminum hydroxide sulfate different in basicity can be obtained.

The invention discloses a multi-component resource utilization method of iron tailings, which aims to solve the problems of low product compactness and low strength in the process of making building materials such as bricks, cement and the like in a common utilization method of the iron tailings. The method comprises the following steps of: screening raw materials with high content of aluminum and silicon by adopting an iron tailings grading and sorting technology, performing wet leaching on the raw materials, adjusting the leachate through a salt base to obtain a polymeric aluminum diacid product, performing wet leaching treatment on leaching residues, and washing and drying to obtain a white carbon black product. According to the technology, the aluminum oxide and silicon dioxide contents of the obtained raw materials are increased through iron tailing grading and sorting. The raw materials are subjected to acid leaching and alkali washing leaching by adopting a wet leaching process to respectively obtain the products polymeric aluminum diacid and white carbon black, so that the extraction rate of aluminum and silicon is improved, and the acid consumption is reduced. The method has the advantages of being flexible in system, wide in application range, good in economical efficiency and the like.

A magnetic chemical absorbent according to the present invention is provided with a composite, which is constituted of a core substance comprising magnetite fine particles and schwertmannite being precipitated around the core substance to chemically bond therewith. This magnetic chemical absorbent can be produced in a hydrolysis reaction step, in which crystal of schwertmannite is precipitated by means of hydrolysis reaction by heating a solution of ferric salt and thereafter adding a reactive substance thereto, by means of adding magnetite fine particles into the solution after the solution is heated and before the precipitation of the crystal begins.

This magnetic chemical absorbent is novel and good one whose absorption capability for harmful ion is upgraded more. In accordance with a waste-liquid treating method using this magnetic chemical substance, it is possible to intend the reduction of burdens in view of environmental and economic aspects. Moreover, this magnetic chemical absorbent is recyclable.