35 results about "Aluminium sulfide" patented technology

Disclosed is a method for the continuous production of aluminum from alumina including a first step of converting alumina (Al2O3) into aluminum sulfide (Al2S3) and a second step of separation of aluminum from aluminum sulfide in a separating reactor. Wherein in the first step in a conversion reactor alumina is dissolved in a molten salt to form a melt and a sulfur containing gas is fed through the melt whereby the sulfur containing gas acts as a reagent to convert at least part of the alumina into aluminum sulfide and at least part of the melt is used in the second step. Further the invention relates to an apparatus for operating the method.

Characters of the invention are that materials of solid electrolyte Li : Al : S=1 :1 :2 (at mol ratio) are amorphous material. Aluminum sulphide is as framework of providing transmission space for lithium ion so as to obtain higher ionic conductivity (ionic conductivity in room temperature about 1.77*10-5S / cm), lower electron conductivity (electron conductivity in room temperature less than 1.0*10-8S / cm), lower activation energy of material, and wider thermostable range. The invention provides comparative ideal candidate of electrolyte material for practical lithium ion battery in full solid state.

The invention relates to a method for producing gelatinization materials of aluminate, ferroaluminate and thioaluminate by using power generation boiler, which it is characterized by that 70-80% of raw coal, 10-18% of bauxite raw material and 8-15% of caustic lime are mixed, ground and homogenized, then the obtained mixed material is fed into powder-falling pipe, passed through air passage and fed into combustion chamber, after combustion the ash granules are passed through electrostatic precipitator to obtain the finished product, such as aluminate, ferroaluminate and thioaluminate gelatinization materials.

The invention discloses a tungsten disulfide (WS2) nano powder material with an aluminum sulfide (Al2S3) shell, and a preparation method of the WS2 nano powder material, belonging to the technical field of preparation of nano materials. The nano powder material has a core-shell structure, wherein the inner core of the core-shell structure is WS2 nano-particles, and the shell of the core-shell structure is an Al2S3 layer; the inner core of the WS2 has the particle sizes of 10-100nm, and the Al2S3 shell layer is an amorphous Al2S3 layer and has the thickness of 1-10nm. According to the preparation method, tungsten powder and aluminum powder are pressed into a block according to a certain atomic percent by a plasma arc discharge method, and the block is taken as an anode material; graphite is taken as a cathode material; argon and hydrogen sulfide are taken as working gases; a certain distance is maintained between the cathode and the anode, and arc discharge is realized between the cathode and the anode, so that the WS2 nano powder material with the Al2S3 shell can be obtained. The preparation process is simple, the working procedure of aftertreatment is not needed, the cost is low, and industrial production can be easily realized.

The invention discloses a molybdenum disulfide nanometer powder material with an aluminum sulfide housing and a preparation method of the molybdenum disulfide nanometer powder material, belonging to the technical field of preparation of nanometer materials. The nanometer powder material is of a core-shell structure, an MoS2 nanometer particle is used as an inner core, an Al2S3 layer is used as a housing; the particle size of the MoS2 inner core is 10nm-100nm, the Al2S3 housing layer is an amorphous Al2S3 layer and has a thickness of 1nm-10nm. According to the molybdenum disulfide nanometer powder material, by adopting a plasma arc discharge method, molybdenum powder and aluminum powder are briquetted into a block body according to a certain atomic percent to be used as an anode material, graphite is used as a cathode material, argon and hydrogen sulfide gases are introduced to be used as working gases, a certain distance is kept between a cathode and an anode, and arc discharge is achieved between the cathode and the anode, so that the MoS2 nanometer powder material with the Al2S3 housing is obtained. The preparation method is simple in preparation process, free from posttreatment procedure and low in cost; industrialized production is easily realized.

The invention discloses a ferrous sulfide (FeS) nanometer powdered material with an aluminium sulfide (Al2S3) casing and a preparation method thereof, and belongs to the technical field of preparing nanometer materials. The nanometer powdered material is in a core-shell structure, a kernel is an FeS nanometer particle, and the casing is an Al2S3 layer; the particle diameter of the FeS nanometer particle kernel is 10-100 nm, and the Al2S3 casing layer is an amorphous Al2S3 layer of which the thickness is 1-10 nm. According to the invention, a plasma arc discharge method is adopted, according to a certain atomic percent, ferrous powder and aluminium powder are pressed into a block which is used as an anode material, a graphite is used as a cathode material, an argon gas and a hydrogen sulfide gas are used as a work gas, a certain distance is kept between a cathode and an anode, and arc discharge is generated between the cathode and the anode, so that the FeS nanometer powdered material with the Al2S3 casing is obtained. The preparation process of the ferrous sulfide nanometer powdered material is simple, post-processing working procedures are avoided, and the cost is low, so that industrialized production is easy to realize.

The invention provides a method for producing ferromolybdenum from molybdenite concentrate, more specifically, it provides a method for producing ferromolybdenum with copper content below 0.5% from molybdenite with high copper content without separate removal Copper process method by placing molybdenite, metallic aluminum and metallic iron in a heating furnace and allowing them to react at high temperature, thereby producing ferromolybdenum in the lower part of said heating furnace, and in the upper part of said heating furnace The slag is formed using aluminum sulfide and iron sulfide as main components, and most of the copper (80%-95%) present in the molybdenite is placed in the slag layer. Exemplary embodiments may shorten the process and reduce consumption of a reducing agent (ie, aluminum) compared to a related art metallothermal reduction (thermite) method.