16 results about "Calcite" patented technology

The invention discloses a matte glaze and a preparation method thereof. The matte glaze comprises the following components by weight: 1-5 parts of zinc oxide, 5-15 parts of barium carbonate, 0-15 parts of zirconium silicate, 10-25 parts of potassium feldspar, 10-20 parts of kaolin, 5-15 parts of calcite, 5-15 parts of calcined talcum powder, 20-35 parts of a matte frit and 0.5-1 part of an additive. Specifically, the matte frit comprises the following components by weight: 30-50 parts of SiO2, 15-20 parts of Al2O3, 0.01-0.5 part of Fe2O3, 3-10 parts of CaO, 0.5-5 parts of MgO, 1-5 parts of K2O, 3-10 parts of Na2O, 3-10 parts of ZnO, 0.1-1 part of B2O3 and 10-25 parts of BaO. By introducing the matte frit, the melting temperature of the formula is lowered, the firing range of the formula isbroadened, and the glaze texture achieves a fine matte effect.

This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.

This invention discloses a black-based blue-spotted glaze with an earthworm-like pattern and its preparation method. The glaze consists of a body, a black base glaze, and a blue-spotted glaze from the inside out. The raw materials for the black base glaze are: feldspar, calcite, calcium borate, dolomite, talc, barium carbonate, quartz, bentonite, zirconium silicate, rutile, cobalt oxide, manganese oxide, and iron oxide. The raw materials for the blue-spotted glaze are: feldspar, limestone, alumina, talc, barium sulfate, Datong clay, zinc oxide, quartz, and titanium dioxide. The preparation method includes: 1. Wet ball milling the black base glaze raw materials to obtain a black base glaze slurry; 2. Wet ball milling the blue-spotted glaze raw materials to obtain a blue-spotted glaze slurry; 3. Bisque firing the body; 4. Applying the black base glaze slurry to the body and drying it; 5. Applying the blue-spotted glaze slurry to the body and drying it; 6. Oxidation firing and reduction firing of the body, followed by natural cooling to obtain the black-based blue-spotted glaze. The raw material formula of this invention is reasonable and environmentally friendly, which can improve the mechanical properties of the glaze; the preparation method is simple and the yield is high.

This invention discloses a method for the comprehensive utilization of sulfide tailings, relating to the field of sulfide tailings treatment technology. This method uses lead-zinc tailings as raw material and innovatively employs a combined "two-stage acid leaching-gravity separation-flotation" process. First, two stages of acid leaching selectively leach calcite associated with barite in the tailings, reducing the influence of muddy calcite while activating pyrite. Subsequently, the acid leaching residue undergoes gravity separation to further separate undissolved calcite, quartz, and other silica-containing gangue minerals. The gravity concentrate is then subjected to flotation to achieve the separation of barite and pyrite, ultimately obtaining high-purity barite and pyrite products respectively. This invention features a reasonable process route and simple operation, effectively solving the separation problem of fine-grained, high-viscosity lead-zinc tailings, achieving full-component purification and utilization of lead-zinc tailings, significantly enhancing the economic value of tailings resources, and reducing the environmental pressure caused by tailings stockpiling, thus demonstrating good economic, environmental, and social benefits.

The application belongs to the technical field of mineral processing, and particularly relates to a sulfonamide benzhydroxamic acid collector, a preparation method and application thereof, and a method for flotation separation of fluorcarbonate cerium ore and calcium-containing gangue minerals. The sulfonamide benzhydroxamic acid collector has a structure shown in formula (I). In formula (I), R1 and R2 are each independently C2-C6 alkyl. The sulfonamide benzhydroxamic acid collector in the application can complete efficient flotation separation of fluorcarbonate cerium ore and calcium-containing gangue minerals such as fluorite, dolomite and calcite under normal temperature, a wide pH range and low reagent dosage.

The application provides a mineralized filter material, a preparation method thereof and a mineralized filter core. The mineralized filter material comprises modified calcite carbonate rock, modified crystalline limestone, modified phyllite and modified granodiorite porphyry. The mineralized filter material comprises modified geological materials with specific components, and when used in a mineralized filter core of a reverse osmosis water purifier, can precipitate various beneficial elements such as calcium, magnesium, lithium, strontium, zinc and boron, and improve the water quality of the reverse osmosis water purifier, and obtain drinking water based on Kunlun Mountain spring water.

The application provides a low-grade scheelite and fluorite ore beneficiation separation method. The preparation method adopts a scheelite-fluorite mixed flotation-scheelite-fluorite mixed concentrate reseparation process, through adopting a xanthate collector to preferentially remove pyrite, magnetic pyrite and other sulfide minerals, the interference of the sulfide minerals on subsequent scheelite-fluorite flotation is reduced; then through controlling the pH value of the scheelite-fluorite separation flotation slurry, and under the action of a special inhibitor, the scheelite-fluorite mixed concentrate is subjected to a reseparation process; in this way, the inhibition of fluorite in the traditional preferential flotation of scheelite and then fluorite process can be effectively reduced, and finally the efficient flotation of scheelite and fluorite ore is realized. Through controlling the pH value at 3-5 and adding an inhibitor SW, the argillaceous gangue such as calcite can be effectively inhibited, the floatability of scheelite is good, and the fluorite is basically not floated, so that higher-grade scheelite and fluorite concentrates can be obtained.

The application discloses a kind of no light kiln glaze and preparation method thereof, belong to kiln glaze technical field, it includes the following mass parts of preparation raw materials: 38~45 parts of sunstone, 20~28 parts of calcite, 10~18 parts of kaolin, 6~14 parts of colemanite, 13~21 parts of strontium carbonate, 1~5 parts of nano zirconium oxide, 5~10 parts of composite colorant, 2~6 parts of microcrystalline control agent, 1~3.5 parts of fluxing regulator.Preparation method includes: S1.wet grinding, aging is obtained glaze pulp after preparation raw materials pretreatment;S2.high pressure glaze is applied to the surface of body and glazing is obtained;S3.glazing body is gradient firing, respectively, low-temperature preheating section, oxidation decomposition section, high-temperature melting section, microcrystalline precipitation section and cooling section.The application solves the technical problems of existing no light kiln glaze glaze surface dry and rough, kiln color single, glaze body matching poor, low yield, so that the glaze surface has kiln texture and high mechanical properties.

A method of drilling a wellbore into a subterranean geological formation includes drilling the subterranean geological formation to form the wellbore, then circulating an invert emulsion drilling fluid into the wellbore during the drilling to suspend cuttings formed during the drilling. The invert emulsion drilling fluid includes diesel, a primary emulsifier, a secondary emulsifier, a brine including water and a polished brine sludge (PBS) powder including halite in an amount of 55 to 75 wt. %, calcite in an amount of 25 to 40 wt. %, and brucite in an amount of 2 to 6 wt. %, based on the total dry weight of the PBS powder, at least one viscosifier, at least one weighting agent, and at least one alkali. The invert emulsion drilling fluid has an oil-to-water volume ratio of 90:10 to 70:30. The invert emulsion drilling fluid does not include calcium chloride.

This invention discloses a method for recovering quartz and calcite from tailings, comprising the following steps: Step 1) using a preliminary flotation collector to perform preliminary calcite flotation on the tailings, obtaining calcite rough concentrate and preliminary flotation tailings; Step 2) adding an activator containing sulfides and lead salts to the preliminary flotation tailings, and using an enhanced flotation collector to perform enhanced calcite flotation on the preliminary flotation tailings, obtaining quartz rough concentrate. The method for recovering quartz and calcite from tailings provided by this invention uses sulfides and lead salts to activate calcite, and performs enhanced calcite flotation on the preliminary flotation tailings, removing calcite that is difficult to float in the preliminary flotation, thus reducing the calcite content in the quartz product.

The invention provides a method for determining ancient ground temperature characteristics of a deep shale bed system vein body. The method comprises the following steps: acquiring a corresponding chart of mechanical bicrystal morphology geometric characteristics and deformation temperature of calcite; wherein the morphological geometric characteristics refer to width and density or strain and density; obtaining the morphological geometric characteristics of the mechanical bicrystal of the vein body calcite of the target deep shale bed series; and based on the morphological geometric characteristics of the calcite mechanical bicrystal of the target deep shale bed system vein body and the corresponding chart of the morphological geometric characteristics of the calcite mechanical bicrystal and the deformation temperature, determining the deformation temperature of the calcite mechanical bicrystal of the target deep shale bed system vein body, and taking the deformation temperature as the ancient ground temperature of the target deep shale bed system vein body. According to the method provided by the invention, the calcite mechanical bicrystal is used as a geological thermothermometer of the deep shale bed system, the paleo-ground temperature characteristics of the vein body of the deep shale bed system are determined, and a reliable method is provided for researching the fluid thermal history of the basin deep shale vein body.

The present application relates to a kind of calcite solid waste resourceization color selection iron removal device, the device is inclined and provided with cascade slide plate flow uniformizing component below discharge pipe;The component is divided into independent discharge passage by multiple parallel static partition plates;Staircase is arranged in the passage with multiple levels of independent slide plate with inverted trapezoidal section.The upper part of independent slide plate is articulated, and the lower part of suspension end is connected with elastic support;The suspension end of upper slide plate covers the articulated end of lower slide plate, and its discharge drop point is positioned at the articulated shaft of lower level.The alternating torque caused by material falling is used to drive slide plate high-frequency flutter, and double-stage dynamic composite stretching and transverse collapse are carried out on clumped material, which reshapes it into unobstructed single-layer powder waterfall, improves the recognition accuracy of photoelectric color selection and high-white-precision material output rate.The problem that extremely dry and fine calcite powder is easily electrostatically clumped during color selection feeding, leading to optical obstruction and uneven discharge, is solved.

Embodiments of the present application relate to the application of thermal methods to test or analyze materials, and in particular to a method for estimating the precipitation temperature of pitchblende in granite-type low-temperature hydrothermal uranium deposits, which can include the following steps: S10: collecting vein ore samples containing primary pitchblende veins in the survey area; S20: processing the vein ore samples to obtain calcite single mineral samples and fluorite single mineral samples; S30: analyzing the calcite single mineral and fluorite single mineral samples to determine the carbon isotope composition of the calcite single mineral samples and the carbon isotope composition of the fluid inclusions in the fluorite single mineral samples; S40: determining the carbon isotope equilibrium temperature according to the carbon isotope composition; S50: determining the precipitation temperature of pitchblende in granite-type low-temperature hydrothermal uranium deposits according to the carbon isotope equilibrium temperature. The method provided by the embodiments of the present application can determine the precipitation temperature of pitchblende through the carbon isotope composition of the coeval calcite and fluorite, and the determined precipitation temperature is accurate and reliable.

This invention discloses a combined collector for flotation of fine-grained carbonate-type copper oxide ores and its application, belonging to the field of mineral processing flotation reagent technology. The combined collector consists of polyethylene glycol monolauryl ether sulfosuccinate sodium salt, PEG-40 hydrogenated castor oil, polyglycerol ricinoleate, and 3,5,5-trimethylhexanoic acid, and may also contain sodium stearoyl lactylate. This invention constructs a quaternary synergistic collecting system of "chelation anchoring - spatial stabilization - emulsification dispersion - auxiliary coordination". The combined collector is suitable for direct flotation processes, requires no pre-sulfurization, exhibits good selectivity, strong collecting capacity, low dosage, and environmental friendliness, and is particularly suitable for the efficient flotation recovery of fine-grained carbonate-type copper oxide ores mainly composed of malachite and azurite, with gangue minerals mainly consisting of calcite and dolomite.