29 results about "High magnesium" patented technology

The purpose of the present disclosure is to provide magnesium glycinate which has a high magnesium concentration.　Disclosed is magnesium glycinate which is configured such that, in differential scanning calorimetry analysis, the value S1 / S2 obtained by dividing the area S1 of an endothermic peak that has a starting temperature in the range of 230°C to 255°C by the area S2 of an endothermic peak that has a starting temperature in the range of 330°C to 370°C is 0 to 7 inclusive.

The present invention belongs to the technical field of glass fibers, and specifically relates to a high-magnesium, high-specific modulus glass fiber composition and glass fibers. The mass percentages of the components are SiO2: 58.5-63.0%, Al2O3: 15.0-20.0%, CaO: 0.3-2.5%, MgO: 16.0-19.5%, Fe2O3: 0.2-0.6%, Y2O3+B2O3: 1.0-3.5%, B2O3: 0.1-1.0%, and K2O+Na2O: 0.3-0.8%. The present invention significantly increases the MgO content, increases the SiO2 content, reduces the Al2O3 and CaO contents, and adjusts the usage ratio of MgO / Al2O3, thereby achieving a density of the glass fiber composition of 2.610 g / cm. 3 The elastic modulus of the glass fiber is ≧94.0GPa, and the specific elastic modulus is ≧3.67*10 6 m.

The invention provides a composition with high magnesium absorption and utilization rate and capable of improving emotion and sleep as well as a preparation method, application and related products of the composition, and belongs to the technical field of magnesium-containing compositions. The composition provided by the invention comprises the following components: magnesium glycinate, magnesium taurine and magnesium malate, and further comprises gamma-aminobutyric acid, vitamin B6, vitamin D and phospholipid. The composition can be made into a variety of dosage forms including tablets. Animal experiments show that the composition provided by the invention can achieve a higher magnesium utilization rate and better effects of improving anxiety and depression and improving sleep.

The invention discloses a magnesium removal method for a high-magnesium-content lithium leaching solution. The high-magnesium-content lithium leaching solution is a lithium sulfate solution obtained by roasting, acidifying, leaching and impurity removal of spodumene ore; the magnesium removal method comprises the following steps: introducing a sodium hydroxide solution into the lithium leaching solution with high magnesium content, synchronously adding calcium hydroxide and magnesium hydroxide seed crystals, and carrying out solid-liquid separation by using a filtering device after complete reaction. By optimizing the reaction raw materials and controlling and adjusting the process, the magnesium removal and filtration efficiency can be obviously improved under the condition that the equipment process flow is not adjusted on a production line, so that the treatment yield is improved, and the production cost is saved.

The invention discloses an Al-Mg-Zn aluminum alloy with ultrahigh strength, high toughness and high magnesium content and a preparation method of the Al-Mg-Zn aluminum alloy. The alloy contains 83.30 wt%-89.51 wt% of Al, 6.0 wt%-9.9 wt% of Mg, 4.01 wt%-5.50 wt% of Zn, 0.025 wt%-0.6 wt% of Si and at least one of Mn, Cu, Zr, Sc, Ti, Be and Sb, wherein the total content of the Mn, the Cu, the Zr, the Sc, the Ti, the Be and the Sb is not larger than 0.7 wt%. The contents of Mg, Zn and Si meet the relational expression: 0.83 < = [(2 * Mg) + Si] / [(3 * Zn)-(0.2 * Mg)] < = 2.03. The preparation method of the aluminum alloy deformation processing material comprises the following steps: (1) manufacturing an aluminum alloy cast ingot; (2) homogenizing heat treatment; (3) processing into a processing material; (4) solid solution heat treatment; (5) cooling to room temperature; and (6) aging treatment. The aluminum alloy has low density, high strength and high fracture toughness.

This application discloses an air-suspension granulation technology for preparing spherical magnesium nitrate hexahydrate, belonging to the field of magnesium nitrate hexahydrate granulation technology. It includes magnesium nitrate hexahydrate purification and granulation. This application incorporates a hydrophobic agent to form a robust microscopic protective layer, which effectively blocks water molecule intrusion and has a low moisture absorption rate. Furthermore, the air-suspension granulation tower technology is redesigned to better handle surface free water, resulting in higher magnesium nitrate purity, better crystal form, and better applicability to various magnesium nitrate applications. The particle size of the magnesium nitrate hexahydrate particles prepared by this application can be adjusted according to the air velocity, ranging from 0.5 to 12 mm. This technology has a wide range of applications, low cost, high sphericity, and eliminates the need for subsequent separate processing of broken particles, reducing labor costs and improving production efficiency. The magnesium nitrate hexahydrate also exhibits high purity, few impurities, and high product quality.

This invention relates to the field of phosphate rock beneficiation technology. It discloses a composite beneficiation method for removing iron, aluminum, silicon, and magnesium impurities from phosphate rock, comprising the following steps: S1, crushing and grinding phosphate rock to remove magnesium; S2, adding water to the demagnesified phosphate concentrate at a concentration controlled at 15-20%, and classifying it using a hydrocyclone to obtain coarse and fine products; S3, subjecting the coarse product to aeration reverse flotation for desiliconization; S4, concentrating the fine product and then subjecting it to aeration flotation for desiliconization, iron removal, and aluminum removal; S5, merging high-quality phosphate concentrate one and high-quality phosphate concentrate two to obtain a low-silicon, low-magnesium, low-iron, and low-aluminum high-quality phosphate concentrate; S6, merging the tailings as total tailings. This invention effectively solves the problem of high magnesium, silicon, iron, and aluminum impurity content in phosphate rock due to depletion, which is difficult to effectively remove. It is an easy-to-operate and easily industrialized composite beneficiation process for efficient phosphate rock impurity removal.

The invention provides a pre-magnesium-removal wet processing method for nickel-cobalt mixed hydroxides, and relates to the field of wet metallurgy. The pre-magnesium-removal wet treatment method of the nickel-cobalt mixed hydroxide comprises the following steps: mixing the nickel-cobalt mixed hydroxide with a first washing solution, and carrying out first slurrying treatment; adding an acid solution into the ore pulp subjected to the first pulpifying treatment, stirring, and carrying out first solid-liquid separation to obtain first washing slag and first filtrate; mixing the first washing slag with a second washing solution, carrying out second pulpifying treatment, adjusting the pH value of the ore pulp subjected to the second pulpifying treatment to 6.8-7.2, introducing CO2 gas, and carrying out carbonization reaction to obtain carbonized ore pulp; and carrying out second solid-liquid separation on the carbonized ore pulp to obtain a pre-magnesium-removed solid and a second filtrate. According to the method, the high magnesium removal efficiency can be achieved under the mild condition, loss of metal such as nickel and cobalt is reduced to the maximum extent, and the method has the advantages of being low in acid consumption, low in water consumption and short in process, and has the feasibility of continuous amplification.

A planting method for tea with high magnesium content relates to the technical field of tea planting and specifically comprises the following steps: S1, before planting, applying a magnesium fertilizer to improve soil; s2, tea trees are planted in the soil improved in the S1, and base fertilizer is applied to improve the soil structure; s3, in the growing period of the tea trees planted in the S2, magnesium fertilizer topdressing is conducted in multiple times in combination with drip irrigation; s4, after the tea trees in the S3 grow up, spraying a magnesium glycinate solution to leaves of the tea leaves in the young shoot growing period of the tea trees; s5, picking the tea leaves entering the picking period in the tea trees in the step S4; the method disclosed by the invention is simple and easy to implement, the operation of each step is easy to master, and the method is suitable for large-scale popularization, can meet the requirements of the market on the high-magnesium functional tea and has good economic benefits and social benefits.

This invention relates to a method for treating and utilizing high magnesium-to-sulfur ratio chlorine-containing wastewater, belonging to the field of environmental protection. This invention utilizes inexpensive calcium alkali to treat high magnesium-to-sulfur ratio chlorine-containing wastewater. During the treatment process, dilute hydrochloric acid is used as a circulation starter. Taking advantage of the difficult-to-remove chloride ions in the wastewater, the calcium alkali is used to generate calcium chloride solution, thereby continuously recovering sulfate ions from the high magnesium-to-sulfur ratio wastewater. Magnesium is converted into magnesium hydroxide, transforming into valuable by-products such as calcium chloride and gypsum, thus achieving resource utilization of waste. This method reduces the environmental impact of wastewater discharge, while also reducing treatment costs and achieving resource recycling. It is highly feasible for existing enterprises and has significant economic, social, and environmental benefits.

The invention belongs to the technical field of wet smelting, and provides a method for continuously preparing high-activity magnesium oxide slurry from superfine magnesium oxide powder and applying the high-activity magnesium oxide slurry to cobalt precipitation and nickel precipitation, and the method comprises the following steps: S1, selecting light calcined magnesium oxide meeting the quality requirement to prepare the superfine magnesium oxide powder meeting the quality requirement; s2, superfine magnesium oxide powder is conveyed to a high-position stock bin, quantitative and continuous feeding is conducted through a metering feeding device, and the superfine magnesium oxide powder is continuously mixed with water or cobalt precipitation pre-liquid or nickel precipitation pre-liquid by means of a Venturi ejector; s3, performing high-shear emulsification dispersion to obtain high-activity magnesium oxide slurry; and S4, directly conveying to a cobalt and nickel deposition reaction system to realize seamless joint between magnesium oxide continuous pulping and continuous cobalt and nickel deposition processes. The invention solves the technical problems of easy agglomeration and caking of magnesium oxide slurry, poor activity, poor cobalt and nickel deposition performance, low grade of crude cobalt hydroxide or nickel cobalt hydroxide product, high content of impurity magnesium, high unit consumption of magnesium oxide and the like in the traditional process.

The invention provides extraction sewage treatment equipment and process for extracting lithium from brine with a high magnesium-lithium ratio, and relates to the technical field of water pollution treatment, the extraction sewage treatment equipment comprises a reaction tank, a dosing mechanism, a slag scraping mechanism and a slag removing mechanism; the slag scraping mechanism comprises a scraping plate and two threaded lead screws, the scraping plate is arranged in the reaction tank, the two threaded lead screws are in threaded connection with the scraping plate, and the left ends of the two threaded lead screws are rotationally connected with first connecting seats. According to the scheme, the slag removal frame and the filter screen are in an inclined state through continuous rightward movement of a scraper blade under the cooperation of an overturning gear and an overturning toothed plate, so that the separated floccule scum can be further treated conveniently, and lime milk can be in better full contact with lower-layer sewage after the floating scum is cleaned, so that the reaction rate is increased, and the reaction time is shortened. And scum can be prevented from being taken out by water flow, so that secondary entrainment of heavy metals and organic matters is reduced, the subsequent recycling or discharging standard is met, and the risk of secondary pollution is avoided.

This invention discloses a ternary composite extraction system for iron-containing brine with a high magnesium-to-lithium ratio and its application. The ternary composite extraction system includes: a main extractant, a co-extractant, a phase behavior modifier, and a diluent; wherein the main extractant includes diphenyl octyl phosphate, the co-extractant includes di(2-ethylhexyl)phosphoric acid, and the phase behavior modifier includes diethyl succinate. This invention proposes a ternary composite extraction system containing DPOP, P2O4, and DES, and establishes a differentiated extraction-back-extraction pathway for complex iron-containing systems. It enables effective lithium recovery through water back-extraction and controls the distribution behavior of iron in the system, thereby simplifying the process and improving the stability of the organic phase cycle.

The invention relates to an oxygen pressure leaching treatment method and an oxygen pressure leaching treatment system for high-magnesium zinc concentrate. The oxygen pressure leaching treatment system comprises a first pipeline, N high-pressure autoclaves, a second pipeline, a third pipeline, a fourth pipeline, a plurality of ninth valves, a tenth valve, a twelfth valve, a flash drum and a solid-liquid separation unit, and the flash drum is communicated with the solid-liquid separation unit; the autoclave comprises a tank body, the tank body is provided with feed ports, discharge ports, air inlets and a manhole, a stirring mechanism is arranged in the tank body, all the feed ports are connected to a first pipeline in parallel, all the discharge ports are connected to a third pipeline in parallel, and all the air inlets are connected to a second pipeline in parallel. According to the oxygen pressure treatment system, deposited and scaled magnesium slag can be regularly cleaned for a single autoclave through the manhole, all the autoclaves can be standby for each other, and during cleaning, by controlling opening and closing of related valves, other autoclaves can be connected in series so as to meet the oxygen pressure leaching process, continuous operation of other autoclaves is guaranteed, and the service life of the autoclaves is prolonged. The operation continuity and the treatment efficiency of the whole oxygen pressure treatment system are favorably improved.

This disclosure aims to provide magnesium glycinate with a high magnesium concentration. [Solution] Magnesium glycinate having a first peak with its peak in the range where 2θ is between 11.1° and 12.1°, and a second peak with its peak in the range where 2θ is between 13.3° and 14.3°, in its powder X-ray diffraction spectrum.

The application provides an extraction sewage treatment equipment and process for extracting lithium from high-magnesium-lithium-ratio brine, relates to the technical field of water pollution treatment, and comprises a reaction tank, a dosing mechanism, a slag scraping mechanism and a slag removal mechanism. The slag scraping mechanism comprises a scraper and two threaded lead screws. The scraper is arranged in the interior of the reaction tank. The two threaded lead screws are threadedly connected with the scraper. First connecting seats are rotationally connected to the left ends of the two threaded lead screws. The scraper continuously moves to the right. The slag removal frame and the filter screen are in an inclined state under the cooperation of the turnover gear and the turnover toothed plate, so that the separated flocculent scum can be further treated. After the floating scum is cleaned, the lime milk and the lower layer of sewage can be better contacted, so that the reaction rate is improved. The scum can be prevented from being carried out by the water flow, so that the secondary entrainment of heavy metals and organic matters is reduced, subsequent reuse or discharge standards are met, and the risk of secondary pollution is avoided.

The invention belongs to the technical field of new energy materials, and discloses a preparation method of a lithium magnesium alloy negative electrode material with high magnesium content. 35%-45% of lithium; 2%-4% of aluminum; 1%-2% of zinc; 0.3%-0.8% of calcium; 0.1%-0.5% of lanthanum; 0.05%-0.3% of neodymium; comprising the following steps: screening raw materials, and removing obviously oxidized and damaged parts on the surface; magnesium, lithium, aluminum, zinc, calcium, lanthanum and neodymium are respectively put into an ultrasonic cleaning machine; according to the method, the raw material ratio is optimized, aluminum, zinc, calcium and rare earth elements lanthanum and neodymium are added, a segmented feeding process is combined, vacuum melting and binary gas stirring are combined, and the problem of composition segregation of a traditional melting method is effectively solved; wherein the rare earth elements lanthanum and neodymium can significantly refine grains, improve the distribution uniformity of the magnesium element and reduce the impurity content, so that the electrochemical stability of the alloy is significantly enhanced, and the cycle performance is superior to that of similar alloys in the prior art.

The invention discloses a copper-nickel sulfide ore flotation composite foaming agent as well as a preparation method and application thereof, belongs to the technical field of mineral separation, and solves one of the problems of weak bubble stability, poor flotation selectivity, low copper-nickel recovery rate and high magnesium content of concentrate in a copper-nickel sulfide ore flotation separation process in the prior art. Raw materials of the copper-nickel sulfide ore flotation composite foaming agent comprise short-chain higher alcohol, ethoxylated low-carbon alcohol ether and sodium oleate. When the copper-nickel sulfide ore flotation composite foaming agent is used for copper-nickel sulfide ore flotation, the grade and the recovery rate of copper-nickel concentrate can be remarkably improved, and the content of MgO in the concentrate is reduced.

The application discloses a preparation process of special magnesium oxide and relates to the technical field of special magnesium oxide preparation, and comprises the following steps: crushing magnesite, processing the magnesite into a plurality of ore blocks, screening the ore blocks with high magnesium content for further crushing, setting the initial rotating speed of a converter, starting the converter and preheating, pouring the ore blocks into the converter, continuously heating the converter, when the temperature and heating time of the converter reach the requirements, stopping the heating and closing the converter, cooling the converter to the ambient temperature, completing the first-time burning of the magnesium oxide, resetting the rotating speed of the converter, starting the converter and heating, when the temperature and heating time of the converter reach the requirements, stopping the heating and closing the converter, cooling the converter to the ambient temperature, taking out the special magnesium oxide after repeated burning, mixing and bagging, and completing the preparation of the special magnesium oxide. The repeated calcination method is adopted, the prepared magnesium oxide has high catalytic performance, and thus the combustion performance of double-base propellant is improved.

The application discloses a hydrotalcite-derived material, a preparation method and application thereof, and belongs to the field of inorganic nanometer material metal ion adsorption; the nanometer material prepared by the application is an oxide derived from layered structure magnesium-aluminum hydrotalcite; the nanometer material is in a nanometer sheet structure; in the preparation process, a magnesium-aluminum hydrotalcite material with a high magnesium / aluminum atomic ratio is used as a precursor, and high-temperature calcination treatment is carried out at a specific temperature to convert the magnesium-aluminum hydrotalcite material into a derived oxide; the derived oxide has a high ion adsorption capacity for trivalent metal ions, and ion enrichment products can return to the layered structure of the hydrotalcite.

The invention discloses an Al-Mg-Zn aluminum alloy with high strength and toughness, fatigue resistance and high magnesium content and a preparation method of the Al-Mg-Zn aluminum alloy. The aluminum alloy comprises the following components in percentage by weight: 86.16%-92.27% of Al, 6.1%-9.5% of Mg, 1.6%-3.0% of Zn, 0.025%-0.099% of Si, and at least one of Mn, Cu, Zr, Sc, Ti, Be and Sb, wherein the total content of the at least one of Mn, Cu, Zr, Sc, Ti, Be and Sb is not more than 0.75%. The preparation method of the aluminum alloy deformation processing material comprises the following steps: (1) manufacturing an aluminum alloy cast ingot; (2) homogenizing heat treatment; (3) processing into a processing material; (4) solid solution heat treatment; (5) cooling to room temperature; and (6) aging treatment. The aluminum alloy material has low density, high strength and excellent fatigue resistance.

The invention relates to a method and a device, by means of which particles with a high magnesium content can be obtained from sea water. The particles can be magnesium hydroxide for example as well as other water-insoluble magnesium salts, such as magnesium sulfate, magnesium carbonate, etc., for example. The particles are produced in a precipitation process using a suitable alkali reagent. When the precipitation is carried out using a nozzle construction according to the invention and / or while adding auxiliary reagents, the size of the obtained particles and the yield thereof can be influenced within a specified range. The aqueous suspension obtained from the process can be further processed in order to produce different products, up to metallic magnesium for metallurgy, using existing technical methods.

The application provides a pre-magnesium removal wet treatment method of nickel-cobalt mixed hydroxide, and relates to the field of hydrometallurgy. The pre-magnesium removal wet treatment method of nickel-cobalt mixed hydroxide comprises the following steps: mixing the nickel-cobalt mixed hydroxide with a first washing liquid, and performing first slurry treatment; adding an acidic solution into the slurry after the first slurry treatment, stirring, performing first solid-liquid separation, and obtaining first washing residue and first filtrate; mixing the first washing residue with a second washing liquid, and performing second slurry treatment; adjusting the pH of the slurry after the second slurry treatment to 6.8-7.2, introducing CO2 gas, performing carbonization reaction, and obtaining slurry after carbonization; performing second solid-liquid separation on the slurry after carbonization, and obtaining pre-magnesium removal solid and second filtrate. The application can realize high magnesium removal efficiency under mild conditions, maximally reduce the loss of metals such as nickel and cobalt, and has the advantages of less acid consumption, less water consumption and short process, so that the application has the feasibility of continuous amplification.

The utility model discloses a decalcified magnesium-rich recrystallized dolomite preparation device which comprises a reaction container, a decalcified magnesium-rich recrystallized dolomite and a decalcified magnesium-rich recrystallized dolomite preparation device, the first injection container and the second injection container are both connected to the reaction container, the first injection container contains a first reaction solution, the second injection container contains a second reaction solution, and the first reaction solution and the second reaction solution are supplied into the reaction container through a peristaltic pump and react with the basic reaction solution to generate a dolomite sample with a high magnesium-calcium ratio; the first gas cylinder, the second gas cylinder and the third gas cylinder can independently provide gas required by reaction into the reaction container; wherein the first gas cylinder is a cleaning bottle and is used for cleaning air supplied into the reaction container; the second gas cylinder is an N2 gas cylinder, and pure N2 gas with certain pressure is filled in the second gas cylinder; and the third gas cylinder is a CO2 gas cylinder, and pure CO2 gas with certain pressure is filled in the third gas cylinder. According to the utility model, dolomite is prepared in a calcium-removing magnesium-rich recrystallization mode under the normal-temperature and normal-pressure laboratory condition.

The utility model provides a backwashing-free crystallization granulation filter bed combined system for high-calcium and high-magnesium water treatment, which mainly comprises a crystallization fluidized bed and a backwashing-free multistage filter bed, a deslagging pipe, a water inlet pipe, an annular dosing pipe, an inclined pipe enhanced separation device and a water outlet pipe are sequentially arranged from bottom to top; the backwashing-free multi-stage filter bed system is provided with a water distributor, a cleaning device, a filter layer, a water collecting tank, a sludge tank, a sludge collecting tank, a lifting pump and the like; when the system runs, high-calcium and high-magnesium raw water firstly enters the crystallization fluidized bed for softening treatment, and then enters the backwashing-free multi-stage filter bed to further remove hardness and turbidity; the method has the advantages that Ca < 2 + > and Mg < 2 + > in water are effectively removed, the turbidity of effluent of the system can be effectively controlled, flocculation and coagulation agents do not need to be added, the operation cost of the system is reduced, the adverse effect of the coagulation agents on a subsequent membrane system is effectively avoided, and the method has good adaptability to various types of high-hardness water.

[Problems to be solved] An object of the present disclosure is to provide magnesium glycinate having a high magnesium concentration.[Solutions to the Problems] Magnesium glycinate having, in a powder X-ray diffraction spectrum, a first peak having a top in a 2θ range of 11.1° or more and 12.1° or less; and a second peak having a top in a 2θ range of 13.30 or more and 14.3° or less.

The invention discloses a high-magnesium-sodium-ratio strong brine resourceful treatment system and a treatment method thereof, and the method comprises the following steps: continuously and respectively feeding high-magnesium-sodium-ratio strong brine and lime milk into a reaction crystallizer containing a reaction completion liquid and a seed crystal, and carrying out temperature-controlled crystallization; respectively collecting overflow feed liquid at the upper end of the reaction crystallizer and slurry at the bottom of the reaction crystallizer, and carrying out solid-liquid separation to obtain a magnesium hydroxide filter cake and a calcium sulfate dihydrate filter cake; and performing three-stage countercurrent washing and purification on the magnesium hydroxide filter cake to obtain a magnesium hydroxide product. The method solves the problems of lack of seed crystal and accurate crystallization control, low separation efficiency, poor product purity, simple washing process and low added value of products in the prior art, magnesium hydroxide and calcium sulfate dihydrate products are generated through reaction with lime milk, enriched Ca < 2 + >, Mg < 2 + > and SO4 < 2-> are settled and converted into magnesium hydroxide and calcium sulfate dihydrate crystal particles, and the calcium sulfate dihydrate crystal particles are obtained. The size difference is large, and effective separation is achieved.

The invention discloses a method for extracting lithium in salt lake brine with a high magnesium-lithium ratio through a solar pond precipitation method. The method comprises the following steps: sequentially carrying out V-shaped filter precipitation, solar pond concentration, precipitation in a precipitation pond, solar pond concentration and lithium precipitation, V-shaped filter filtration and recrystallization on the salt lake with the high magnesium-lithium ratio to obtain lithium carbonate precipitation. According to the method for extracting the lithium in the salt lake brine with the high magnesium-lithium ratio through the solar pond precipitation method, the extraction efficiency of the lithium can be effectively improved, the production cost is saved, the treated brine can be recycled, resource waste is avoided, meanwhile, the process is simple, equipment is simple, green energy of solar energy is utilized in production, and the method is suitable for industrial production. And the production cost is saved, no harm is caused to the environment, and the method has a relatively high application prospect.