104 results about "Calcium magnesium" patented technology

The invention relates to the technical field of land improvement, in particular to an alginic acid type multifunctional long-acting soil conditioner and a preparation method and application of the alginic acid type multifunctional long-acting soil conditioner. The core particle layer comprises an organic material, nano silicon, calcium magnesium polyphosphate, magnesium hydride, ammonium borate, rhamnose and an adhesive, and the slow release layer comprises clay minerals and alginate; the mass ratio of the clay mineral to the alginate to the organic material to the calcium magnesium polyphosphate to the nano silicon to the magnesium hydride to the ammonium borate to the rhamnose to the binder is controlled within a certain range. The soil conditioner provided by the invention is good in slow release performance, can release effective components durably and slowly, and has multiple effects of improving soil quality, providing nutrition, promoting crop growth, improving resistance and the like; the problems of soil acidification, heavy metal pollution, micro-plastic pollution, pesticide pollution, antibiotic pollution and the like in agricultural production can be effectively solved.

The invention belongs to the technical field of fertilizers. The invention discloses a method for preparing a polymerized calcium-magnesium fertilizer by using yellow phosphorus slag, and aims to solve the technical problems that the pH value of the yellow phosphorus slag as a fertilizer raw material is too high, and effective calcium, magnesium and silicon elements of the yellow phosphorus slag are difficult to utilize. A product obtained by reaction of the yellow phosphorus slag and the raffinate acid is used as a raw material, and phosphorus, calcium and magnesium elements in the phosphoric acid slag and the yellow phosphorus slag are fully utilized to form phosphorus, calcium and magnesium elements in a polymerization state. In terms of P2O5, the polymerization rate of the polymerized calcium-magnesium fertilizer is greater than or equal to 80%. Phosphorus in the prepared product has a slow release property, when the product is applied to soil, the phosphorus in the product cannot be rapidly fixed but slowly releases orthophosphate to meet the requirements of crops, magnesium and calcium are not prone to being greatly leached by water due to the action of polyphosphoric acid, and the product is especially suitable for crops with high requirements for calcium and magnesium.

The invention relates to the technical field of processing methods of optoelectronic materials, and mainly relates to a grinding and polishing process of a magnetic thin film epitaxial substrate material-calcium magnesium zirconium doped gadolinium gallium garnet (Ca, Mg, Zr: GGG, hereinafter abbreviated as SGGG) single crystal substrate. Comprising the key steps of disc loading, thinning and leveling, mechanical grinding and polishing, chemical mechanical polishing (CMP) and the like, as shown in figure 1. The invention also relates to a special binder, a grinding liquid and a polishing liquid in the SGGG substrate processing process, and the ultra-smooth (the roughness is less than or equal to 0.5 nm) and ultra-flat (the flatness is less than or equal to 5 [mu] m) SGGG single crystal substrate can be obtained through the technological process, the corresponding grinding liquid and the corresponding chemical polishing liquid, so that the epitaxial growth requirement of a YIG or RIG magnetic film is met.

The invention relates to a surfactant oil displacement composition suitable for a high-temperature and high-salt oil reservoir and application of the surfactant oil displacement composition. The surfactant oil displacement composition comprises the following components in percentage by mass: 0.10-0.50 wt% of a nitrogen-containing surfactant, less than 0.12 wt% of a sulfur-containing surfactant or hydrophobic salt and the balance of water. The surfactant oil displacement composition stably exists under the conditions that the temperature is 70-130 DEG C, the total mineralization degree of formation water is (10-25) * 10 < 4 > mg / L, and the concentration of calcium and magnesium ions is (1-2.5) * 10 < 4 > mg / L, and is kept clear without forming precipitates. The interfacial tension of the surfactant oil displacement composition can reach 10 <-2 > mN / m order of magnitude under high-temperature and high-salt conditions, the oil washing efficiency can reach 80% or above, and the surfactant oil displacement composition is suitable for improving the recovery efficiency of a high-temperature and high-salt oil reservoir in tertiary oil recovery.

The invention provides an organic-inorganic composite conditioner for improving a soil structure. Comprising the following raw materials in parts by mass: 100-150 parts of calcium, 20-50 parts of magnesium, 10-20 parts of polyglutamic acid, 0.5-2 parts of zinc, 2-4 parts of boron, 2-4 parts of iron, 100-150 parts of organic nitrogen, 150-200 parts of composite organic natural polypeptide amino acid, 50-70 parts of seaweed boron molybdenum, 50-80 parts of phosphorus calcium zinc liquid, 20-50 parts of seaweed calcium magnesium boron iron zinc and 100-120 parts of a plant nutrition preparation. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of high phosphorus and high potassium, 150-200 parts of organic waste compost, 50-80 parts of a synergist and 50-100 parts of a functional microbial agent. Through a unique chelation technology, polyglutamic acid and calcium and magnesium ions are fully fused to form an efficient medium trace element water-soluble fertilizer, calcium and magnesium are directly absorbed by a root system after flushing application, the calcium utilization rate is improved by 50% or above, and due to the fact that polyglutamic acid carries strong negative charges, fertilizer loss caused by rainwater leaching is effectively reduced, and the yield of the fertilizer is improved. And the water-retaining and fertilizer-retaining functions are more obvious when the fertilizer is used in sandy loam.

The invention relates to the technical field of salt mine collection, in particular to a stoping and filling device of a salt mine well and an anti-accumulation method of the stoping and filling device, the device comprises a butt joint well group, and the butt joint well group comprises a mud inlet well and a brine outlet well and is used for achieving backfilling of calcium magnesium mud and stoping of brine; the well logging system is used for detecting the shaft condition and the position of a cavity top plate; the pipe cutting equipment is used for cutting off the sleeve at a preset position below the top plate of the dissolving cavity; the sonar cavity measuring equipment is used for measuring the spatial form of the dissolving cavity; scale on the inner wall of the casing pipe is removed through a high-pressure water nozzle and steel wire brush composite cleaning technology, and pipe cutting position control accurate to the millimeter level is matched, so that a slurry conveying channel is unobstructed, the problem of pipeline blockage is solved, and production halt loss caused by blockage is avoided.

The invention belongs to the technical field of brine extraction, and particularly relates to a process method and system for extracting iodine from calcium-magnesium-sodium type brine, the process comprises an iodine enrichment process and an iodine refining process, the first process comprises the following steps: firstly, removing organic matters and solid phase impurities in the raw material brine, then removing calcium ions, and then carrying out acidification and oxidation; finally, iodine-containing air and iodine-extracted brine are obtained through air blowing; meanwhile, after iodine-containing air is subjected to primary demisting and primary purification, alkali liquor is added for primary absorption and secondary absorption, and iodine-enriched liquid is obtained; and 2, acidifying the iodine enrichment liquid, separating out iodine crystals, separating the crystallized iodine from the mother liquor, adding purified water for washing, melting the crystallized iodine at high temperature, purifying and refining, and finally cooling and crushing to obtain the finished product iodine. The method provided by the invention fully realizes recovery and utilization of iodine resources, ensures the comprehensive utilization rate of the resources, absorbs free iodine in iodine-containing air twice by using the alkali liquor, avoids the use of sulfur dioxide, reduces the process risk, and improves the quality of iodine products.

The invention relates to the field of fertilizers, and discloses a high-activity humic acid calcium-magnesium-silicon fertilizer which is prepared from humic acid, calcium oxide, magnesium sulfate, silicon dioxide and the like as raw materials, has a neutral pH value and does not cause damage to roots of crops. The fertilizer is high in nutrient utilization rate and widely applicable to various crops; according to the high-activity humic acid calcium magnesium silicon fertilizer provided by the invention, humic acid is added into the raw materials, so that the fertilizer efficiency utilization rate is greatly improved, and balanced absorption of crops is achieved; elements which are not absorbed in the soil are fully released, and the soil activity is improved, so that crops fully absorb various elements; by using the humic acid calcium magnesium silicon fertilizer, the soil structure can be effectively improved, and the water and fertilizer retention capability of the soil can be enhanced, so that the use amount of chemical fertilizer is reduced, and the agricultural production cost is reduced.

The invention discloses a ZTA ceramic interbody fusion cage and a preparation method and application thereof.The ZTA ceramic interbody fusion cage is composed of a compact outer wall and a porous interior, and the porous interior is of a gradient porous three-period minimal curved surface structure; the ZTA ceramic interbody fusion cage is made of a calcium magnesium silicate mineral / ZTA composite ceramic material, and the preparation process of the ZTA ceramic interbody fusion cage comprises the following steps: preparing ceramic powder and a photosensitive raw material according to a design ratio, mixing the materials to obtain ceramic slurry, adding the ceramic slurry into light-curing printing equipment, carrying out light-curing printing according to a ZTA ceramic interbody fusion cage model to obtain a ceramic biscuit, and sintering the ceramic biscuit to obtain the ZTA ceramic interbody fusion cage. The ceramic biscuit is degreased and sintered, and the ZTA ceramic interbody fusion cage is obtained.The gradient bionic structure interbody fusion cage has the advantages of being matched with autogenous bones in mechanical property, adjustable in performance, good in biocompatibility, good in bone induction performance and the like.

The invention relates to the technical field of inorganic chemical industry, in particular to a method for preparing high-quality calcium sulfate and magnesium hydroxide through efficient desulfurization of coal-fired flue gas by dolomite. According to the method, dolomite is calcined, calcium and magnesium are separated through one-time leaching of the ammonium nitrate solvent, then SO2 in the flue gas is removed through magnesium, the desulfurization rate is high, the reaction speed is high, high-quality calcium sulfate and magnesium hydroxide are obtained with the desulfurization process as a medium, and perfect combination of flue gas environment-friendly desulfurization and high-added-value product manufacturing is achieved. Meanwhile, the generated ammonia gas is recycled in the system, so that the cost of raw materials is saved, the gas generated by the process is fully utilized, and the waste of resources and the environmental pollution are avoided. Meanwhile, the raw materials are basically solved on the spot, so that the technical scheme can be completed without providing conditions (large chemical fertilizer plants or large coking plants) for nearby specific matched enterprises, the applicability is higher, and the cost is lower.

The invention provides a water-soluble fertilizer containing rare earth and a preparation method thereof. The water-soluble fertilizer is prepared from the following raw materials in parts by weight: 30 to 40 parts of nitrogen phosphorus and potassium components, 10 to 15 parts of calcium magnesium components, 3 to 5 parts of mineral element components, 0.5 to 1.0 part of nickel cobalt selenium components, 10 to 15 parts of humic acid, 5 to 10 parts of sodium alginate, 5 to 10 parts of fish protein, 3 to 5 parts of pyroligneous liquor, 2 to 4 parts of chelating agents and 0.5 to 1.0 part of rare earth. Wherein the nitrogen-phosphorus-potassium component is prepared by mixing urea, monoammonium phosphate, diammonium phosphate and potassium nitrate according to the mass ratio of (2-3): (1-2): (1-2): (2-3), the anti-caking agent is prepared from starch phosphate, microcrystalline cellulose and nano clay according to the mass ratio of (2.0-4.0): (1.5-3.5): (1.0-2.0), and the chelating agent is prepared from ethylenediamine tetraacetic acid, erythritol, glycine, salicylic acid or derivatives thereof according to the mass ratio of (4-6): (2-3): (1-2): (0.1-0.6). The complex multi-element ligand system is formed by combined use of ethylenediamine tetraacetic acid, erythritol, glycine, salicylic acid or derivatives thereof. Through the synergistic effect of a multi-element ligand system, rare earth ions are more effectively stabilized, and more stable chelated rare earth is formed, so that the solubility of the chelated rare earth in water is improved.

Disclosed is a cement admixture which contains a calcium carbonate-containing powder and one or more non-hydraulic compounds that are selected from the group consisting of γ-2CaO∙SiO2, 3CaO∙2SiO2, α-CaO∙SiO2, and calcium magnesium silicate.

The invention relates to a continuous reaction kettle for producing full-water-soluble nitro silicon calcium magnesium tablets, and relates to the technical field of reaction kettles.The continuous reaction kettle comprises a kettle body, an overflow cylinder, a flow blocking plate, a first stirring assembly, a second stirring assembly, a mixing assembly and a third stirring assembly, and the first stirring assembly comprises a driving part, a stirring shaft, a stirring plate and a first transmission part; the second stirring assembly comprises a driving rod, a first stirring impeller and a second transmission part, the mixing assembly comprises a first telescopic rod, the third stirring assembly comprises a second stirring impeller and a third transmission part, and a spoiler slides under the driving of a stirring shaft. The sliding spoiler drives the stirring plate, the first stirring impeller, the first telescopic rod and the second stirring impeller to act, the stirring plate turns over the mixed liquid, the first stirring impeller comprehensively stirs the mixed liquid, the first telescopic rod enables the mixed liquid to be impacted and mixed, and the second stirring impeller further stirs the mixed liquid. The powder and liquid mixing device has the effect of improving the overall mixing uniformity of powder and liquid.

The invention discloses a hydrothermal synthesis method of magnesium-rich silicate and application of the magnesium-rich silicate in acid soil improvement, and belongs to the technical field of soil improvement. According to the method, magnesium chloride, calcium chloride and sodium silicate serve as raw materials, calcium magnesium silicate gel is generated through a hydrothermal reaction, a high-purity product is obtained through freeze drying after impurities are removed through multiple times of washing, and a surfactant can be added to optimize the material morphology and the specific surface area and improve the acid soil effect. The obtained material is hydroxyl calcium magnesium silicate with the molar ratio of calcium to magnesium being (1: 3)-(1: 5), and has a porous nanosheet structure. According to the invention, silicate is released to neutralize the acidity of soil, calcium and magnesium ions are released to fix exchangeable aluminum ions in acid soil, magnesium ions and silicate are released to improve the microbial activity of soil and promote the formation of a soil aggregate structure, and the problems of easy acid regurgitation, soil hardening and the like of a traditional lime acid soil improvement material are solved; the soil conditioner is suitable for rapid acid reduction and long-acting acid control of strongly acidic soil (the pH is more than or equal to 4.0 and less than or equal to 5.0).

The utility model belongs to the field of anti-scale and anti-corrosion pipelines, and particularly relates to a special anti-scale and anti-corrosion pipeline suitable for a high-concentration calcium magnesium salt ion solution, which comprises an anti-scale and anti-scale water treater, a column body of the anti-scale and anti-scale water treater is movably connected with a male connecting ring, the end part of the male connecting ring is clamped with a female connecting ring, and the female connecting ring is connected with the column body of the anti-scale and anti-scale water treater. A connecting column is fixedly connected to the frame body of the male connecting ring, an adjusting piece is fixedly connected to the end of the connecting column, a connecting rod is fixedly connected to the middle of the adjusting piece, and a fixing frame is fixedly connected to the end of the connecting rod. And when the scale prevention and removal type water treater needs to be obliquely mounted, the adjusting piece can be flexibly adjusted to be in an inclined state so as to adapt to the mounting of the scale prevention and removal type water treater.

The invention discloses a method for enhancing impurity removal of high-calcium-magnesium titanium slag, which comprises the following steps of: S1, spraying gas added with NaCl into molten titanium slag to perform oxidation transformation treatment in the smelting and deslagging process of an ilmenite concentrate electric furnace; s2, the molten titanium slag obtained in the step 1 flows into an atomizer to be atomized, transformation of the titanium slag is further promoted, and the titanium slag is crushed into powder particles; and S3, the transformed titanium slag powder is subjected to impurity removal through a first-stage hydrochloric acid leaching process, and the titanium-rich material meeting the boiling chlorination requirement can be obtained. The method for strengthening impurity removal of the high-calcium-magnesium titanium slag is in butt joint with an existing titanium slag production process, heat of the molten titanium slag is fully utilized, rapid transformation of the titanium slag can be achieved, the titanium slag is crushed into powder particles, one-section leaching is adopted in acid leaching impurity removal of the transformed titanium slag, the process is short, energy consumption is low, and the method is suitable for industrial production. The method can realize low-cost preparation of the boiling chlorination furnace burden from the high-calcium-magnesium titanium slag, and has important significance for guaranteeing the supply safety of raw material resources in the titanium industry in China and promoting the high-quality development of the titanium industry in China.

The invention provides a carbonate rock discrimination method and system based on element logging analysis, and the method comprises the steps: carrying out the element spectrum analysis of a sample which is determined to be carbonate rock, and obtaining the contents of Ca and Mg elements; establishing a carbonate rock identification model, wherein the carbonate rock identification model comprises a carbonate rock classification index calculation model, a calcium-magnesium index calculation model and a carbonate rock discrimination model; inputting the obtained Ca and Mg element contents into a carbonate rock discrimination model, and obtaining a carbonate rock classification index value and a calcium magnesium index value in the carbonate rock discrimination model through a carbonate rock classification index calculation model and a calcium magnesium index calculation model; and the carbonate rock discrimination model judges the lithology of the carbonate rock sample according to the intersection interval of the carbonate rock classification index value and the calcium-magnesium index value. The carbonate rock classification and identification model is established through the element features, then on-site quantitative rapid and accurate identification of the carbonate rock is guided, and the problem of on-site carbonate rock lithology identification is solved.

The present invention discloses an organic compound fertilizer for promoting the absorption and utilization of nitrogen by continuous cropping peanuts. Its raw materials include: urea, humic acid, potassium nitrate, calcium magnesium nitrate, earthworm manure, ammonium molybdate, magnesium silicate, vitamin E, highly adsorbent activated carbon, brown sugar, compound microbial inoculum, polyaspartic acid and water; the mass ratio of urea, humic acid, potassium nitrate, calcium magnesium nitrate, earthworm manure, ammonium molybdate, magnesium silicate, vitamin E, highly adsorbent activated carbon, brown sugar, compound microbial inoculum, polyaspartic acid, water is 10 - 20:5 - 15:2 - 10:2 - 10:4 - 10:1 - 5:1 - 2:0.1 - 1:5 - 15:1 - 5:2 - 6:1 - 2:110 - 320. The present invention also discloses a preparation method of the above organic compound fertilizer for promoting the absorption and utilization of nitrogen by continuous cropping peanuts.

The present application relates to the technical field of fertilizer, and especially relates to a biological coupling powder rich in mineral nutrition and a preparation method thereof, which comprises the following steps: activating calcium magnesium potassium sulfate to obtain activated calcium magnesium potassium sulfate, and determining whether the activation is qualified; in response to the qualified activation, mixing the activated calcium magnesium potassium sulfate with organic raw materials, determining whether the affinity and dissociation of the activated calcium magnesium potassium sulfate and the organic raw materials meet the standard based on the increment of water-soluble calcium and the pH change rate; in response to the qualified affinity and dissociation, determining the balance treatment of the mixture, and obtaining fermentation substrate; spraying a compound microbial inoculum to the fermentation substrate in a preset stage for solid-state aerobic fermentation treatment, determining the addition of the compound microbial inoculum based on the change rate of water-soluble calcium content, and obtaining fermentation product; aging the fermentation product, determining whether to extend the aging time based on the humification coefficient, and drying the fermentation product to obtain the biological coupling powder. The present application improves the biological coupling property of mineral nutrition and organic raw materials.

The invention relates to talaromyces pseudomonas hzt-3'as well as a preparation method and application of the talaromyces pseudomonas hzt-3 ', and belongs to the technical field of application of microorganisms. The strain is preserved in the China Center for Type Culture Collection, the preservation number of the strain is CCTCC NO: M 20251797, and the strain is classified and named as (Talaromyces pseudomonas hzt-3 '). The method comprises the following steps: collecting moss and vegetation soil samples from basalt, diabase and dolomite; diluting bacterial colonies in the sample, and separating and purifying the bacterial strains by using a Czapek culture medium; anorthite and serpentine are used as inorganic salt sources for strain screening, and strains which grow stably and have a good leaching effect on calcium magnesium silicate minerals are obtained; the strain is applied to efficient leaching of anorthite, serpentine and wollastonite, and compared with a sterile control group, the effect of improving the leaching rate of calcium and magnesium ions is remarkable. The method solves the problem that the reaction rate of mineral sequestration carbon dioxide is slow due to the fact that ions in natural silicate minerals are difficult to leach, and has great significance.

The invention discloses a processing method of a medium trace element fertilizer containing rare earth, belongs to the technical field of fertilizer processing, and aims to solve the problem that the efficacy of the fertilizer cannot be fully exerted due to the fact that the comprehensive utilization and processing method of rare earth silicon calcium magnesium is not perfect. Meanwhile, silicon, calcium and magnesium powder with the ratio of 1: 0.5: 0.5-1: 1: 1 is prepared, then mixing, calcining and granulation are conducted, and the processing operation of the fertilizer is completed. The processing method can fully utilize the synergistic effect of elements such as rare earth, silicon, calcium and magnesium, the fertilizer efficiency of the fertilizer is improved, plant growth is promoted, the crop yield and quality are improved, and through the reasonable calcining technology, the production cost is reduced. Various mineral components are fully reacted to form a stable compound, the stability and the long-term effect of the fertilizer are improved, the additive added in the processing process can improve the dispersity and the stability of the fertilizer, the fertilizer is convenient to apply and store, and the method is simple in process, easy to operate and suitable for large-scale production.

The invention relates to a low-ammonia volatile nitrogen fertilizer based on calcium and magnesium minerals, the nitrogen fertilizer comprises urea and calcium and magnesium minerals, and the urea and the calcium and magnesium minerals in the nitrogen fertilizer are eutectic mixtures. The invention further relates to a preparation process of the low-ammonia volatile nitrogen fertilizer based on the calcium-magnesium mineral substances, which comprises the following steps: S1, introducing urea into a mixing tank, and adding the calcium-magnesium mineral substances in a certain weight ratio into the mixing tank to form a urea-calcium-magnesium mineral substance molten mixture; s2, the urea-calcium magnesium mineral substance molten mixture is introduced into a granulation device, and a urea-calcium magnesium mineral substance eutectic mixture is obtained; and S3, further cooling and granulating to obtain the low-ammonia volatile nitrogen fertilizer based on the calcium and magnesium minerals. By synthesizing the eutectic mixture of urea and calcium-magnesium minerals, the utilization rate of urea nitrogen is increased to a certain extent, and ammonia volatilization is correspondingly reduced.

A water hardness test paper includes a carrier and a water hardness detection substance provided on the carrier, wherein the water hardness detection substance includes a color developer which includes one or more of calcium magnesium reagent, chrome black T, calcium carboxylic acid, azo arsine 1, and azo arsine 3.

The invention discloses a fluidized bed furnace device system suitable for chlorination of high-calcium-magnesium-titanium slag, comprising a fluidized bed furnace body, wherein the upper part of the fluidized bed furnace body is a reaction chamber, the middle part is an expansion chamber, and the lower part is a boiling chamber; a high-voltage pulse-assisted upper slag discharge system is arranged between the boiling chamber and the expansion chamber, and cooperates with an automatic slag discharger connected with a lower slag discharge port to realize effective and clean separation of impurity components such as calcium and magnesium in the fluidized bed, effectively prolong the stability time of the fluidized bed, and ensure sufficient reaction time between the material and chlorine; in addition, a gas distribution chamber is arranged at the lower part of the boiling chamber, and a wind cap sleeve with rectifying small holes is arranged in the gas distribution chamber, and the wind cap sleeve connects the gas distribution chamber and the boiling chamber; a double-flow channel spiral blade is arranged in the wind cap sleeve to realize high-intensity rotary cutting and stirring of the material bed, so that the material and chlorine are fully mixed and reacted; further, a plasma gun ignition device is also arranged in the fluidized bed furnace system to fully realize efficient and fully automatic clean production of titanium tetrachloride gas.

The utility model relates to the technical field of chelating tanks, and discloses a poly (calcium magnesium glutamate) constant-temperature chelating device which comprises a tank body, a motor is fixedly connected to the middle of the top surface of the tank body, a stirring rod is fixedly connected to the output end of the motor, a U-shaped plate is fixedly connected to the outer side of the stirring rod and makes contact with the inner wall of the tank body, and the stirring rod is fixedly connected to the inner wall of the tank body. A water tank is fixedly connected to the outer side of the tank body, a heating pipe is fixedly connected to the interior of the water tank, and an auxiliary assembly is arranged on the outer side of the water tank. According to the device disclosed by the utility model, polyglutamic acid and calcium and magnesium elements are added into the tank body, the driving motor can drive the stirring rod and the U-shaped plate to stir the polyglutamic acid and the calcium and magnesium elements, and then water in the water tank can be heated by driving the heating pipe, so that the tank body and the polyglutamic acid and the calcium and magnesium elements in the tank body can be heated; and therefore, the uniformity of temperature distribution can be improved, and the final quality of a product is improved.

The invention belongs to the technical field of refractory materials, and relates to a high-calcium-magnesium-calcium-titanium-zirconium brick for stainless steel smelting and a preparation method thereof. By preparing the high-calcium magnesium-calcium-zirconium sand, the magnesium-calcium-titanium sand and the composite binding agent for the oil shaft kiln, an existing magnesium-calcium brick for stainless steel smelting is replaced, and the high-calcium magnesium-calcium-titanium-zirconium brick has the advantages of being high in volume density, low in porosity and impurity content, more excellent in high-temperature resistance, erosion resistance, slag resistance and high-temperature abrasion resistance and the like; finally, the purpose of replacing a traditional magnesium-calcium brick refractory material for stainless steel smelting is achieved.

The invention relates to the technical field of tobacco, in particular to a nicotine product and a preparation method thereof. The nicotine product comprises porous ceramic particles and nicotine or a salt thereof loaded on the porous ceramic particles, the porous ceramic particles are made of one or more of calcium magnesium silicate and aluminum magnesium silicate; the porous ceramic particles have first gradient pores, second gradient pores, and third gradient pores. The nicotine loading rate is high.

1. The name of the product of this design: packaging bag (calcium magnesium boron zinc iron). 2. Purpose of this design product: used for packaging products. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. This design product is a flat product, and the left view, right view, top view and bottom view are omitted.

The invention belongs to the technical field of inorganic non-metallic materials, and particularly relates to spinel and calcium aluminate multiphase aggregate as well as a preparation method and application thereof. The method comprises the following steps: 1) mixing calcium magnesium aluminate fine powder and calcium oxide source fine powder to obtain mixed powder I; 2) adding a binder into the mixed powder I, and mixing to obtain a mixture II; (3) carrying out compression molding on the mixture II, and then sequentially carrying out drying and heat treatment; and 4) crushing the sample subjected to heat treatment to obtain the spinel and calcium aluminate multiphase aggregate. The spinel and calcium aluminate complex-phase aggregate provided by the invention has the advantages of small apparent porosity and lower melting point of an internal phase. In the service process of the material, the aggregate can give full play to the capabilities of phase change heat storage and micro-crack self-repairing.

The invention belongs to hydrogenation-rich modified materials, and particularly relates to a hydrogenation-rich modified material as well as a preparation method and a use process thereof. The catalyst is prepared from the following raw materials in parts by weight: 10-60 parts of polyethylene glycol and 40-90 parts of a hydrogen source, the hydrogen source is one or a combination of more of calcium hydride, magnesium hydride, calcium magnesium hydride, elemental calcium and calcium magnesium alloy, or platinum-loaded titanium dioxide. The hydrogenation-rich modified material can modify an additive, the preparation method is convenient to operate, the use mode is simple and efficient, the utilization rate is high, the hydrogenation-rich modified material can be applied to the fields of medicine, food and cosmetics, the use conditions of inherent food additives, cosmetic additives and the like are not affected, and the modified additive can produce hydrogen after being used in oral administration, smearing and other modes; the product is easy to absorb, has no irritation to intestinal tracts, has no chemical residues influencing human health, and has strong practicability.