14 results about "Calcium content" patented technology

A system and method for process water and oxide coating recovery and distribution in a direct reduction system, such as a system for producing direct reduced iron. A warm lime softener is used to remove (recover) calcium, alkalinity, and other constituents from the process water system and to produce an effluent that can be further processed and returned as makeup to the process water system. The lime softening process requires lime (or similar material) to be added to the influent, thereby increasing the calcium and pH levels until they become supersaturated and precipitate. This chemical process results in effluent that is low in calcium, alkalinity, and total suspended solids.

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 application discloses a method for determining water-soluble calcium content in stone powder, and relates to the technical field of material detection. The method comprises the following steps: firstly, mixing a stone powder sample with water to extract a sample solution; then, adding an excess of sodium bicarbonate solution to part of the sample solution, heating at 70-80 DEG C, cooling and standing, and then treating the sample solution by filtration, washing and drying to obtain a precipitate; finally, calculating the water-soluble calcium content in the stone powder according to the mass of the precipitate. The method realizes accurate detection of the water-soluble calcium content through sodium bicarbonate precipitation and constant weight determination. The method can also realize batch detection of samples, improves work efficiency, and is safe and environmentally friendly in the experimental process.

This invention relates to a method for synergistic calcium reduction and quality improvement of magnesite. The method first establishes the intrinsic relationship between each ore particle and the grade of various chemical components, including MgO, based on the differences in surface texture, luster, roughness, and color of the various minerals in the raw magnesite ore. Standard samples of magnesite concentrate, tailings, and intermediate products are then selected, thereby establishing an artificial intelligence (AI) pre-selection model. The AI ​​pre-selection model is used to intelligently pre-select and remove tailings from coarse-grained magnesite. The intermediate products obtained from the intelligent pre-selection undergo reverse flotation for desilication, forward flotation for calcium reduction, and magnetic separation for iron reduction to obtain magnesite concentrate and tailings. This method leverages the synergistic effect of intelligent pre-selection and traditional flotation for calcium reduction, overcoming the limitations of flotation for calcium reduction and significantly reducing the calcium content of the magnesite concentrate product. This method has the advantages of simple operation, low production cost, and high efficiency.

A system and method for process water and oxide coating recovery and distribution in a direct reduction system, such as a system for producing direct reduced iron. A warm lime softener is used to remove (recover) calcium, alkalinity, and other constituents from the process water system and to produce an effluent that can be further processed and returned as makeup to the process water system. The lime softening process requires lime (or similar material) to be added to the influent, thereby increasing the calcium and pH levels until they become supersaturated and precipitate. This chemical process results in effluent that is low in calcium, alkalinity, and total suspended solids.

This disclosure relates more particularly to calcium sulfate-based suspensions useful, for example, for making gypsum boards for building construction, as well as methods for using them, for example, for making gypsum boards; in one aspect, this disclosure provides a calcium sulfate suspension composition comprising calcium sulfate basically present in the form of one or more hydrates, the calcium sulfate being present in an amount in the range of 70-99.8% w / w on a dry basis, calculated as stucco; and a cationic starch present in an amount of 0.10-10% w / w of the amount of calcium sulfate as stucco on a dry basis, the cationic starch being substituted by amine and / or ammonium groups and having a %N value in the range of 0.10% pa 2% w / w, and an RVA viscosity value of at least 100 cP at 65 °C and 16% w / w; and water, in a sufficient quantity to form a suspension; the disclosure further provides gypsum-based materials useful as building materials, for example, for use as building boards in the construction of building walls and ceilings.

This invention discloses quinoa with enhanced calcium and γ-aminobutyric acid (GABA) enrichment and its preparation method. The method uses quinoa as raw material, treats it with food-grade calcium chloride, and controls temperature and humidity conditions to increase the enrichment of calcium and GABA in the quinoa. After drying, quinoa rich in calcium and GABA is obtained. This method is simple to operate, low in cost, and can biofortify the calcium and GABA content in quinoa, resulting in a calcium content of 240–280 mg / 100g dry matter, meeting the calcium-rich requirements of GB28050, and a GABA content of 180–290 mg / 100g dry matter. It also reduces the phytic acid content in quinoa to 39–160 mg / 100g dry matter. The calcium content is increased by 6–7 times compared to the raw quinoa, and the GABA content is increased by 11–18 times, while the phytic acid / calcium ratio is reduced to 3–20% of that in the raw quinoa. This invention provides biofortified quinoa with a lower phytate / calcium ratio, which facilitates calcium absorption. The resulting quinoa can be used in flour products, baked goods, etc., increasing their calcium and γ-aminobutyric acid (GABA) content while reducing the phytate / calcium ratio.

This invention discloses a traditional Chinese medicine composition for regulating calcium ion homeostasis in the stomach, belonging to the field of traditional Chinese medicine technology. It is made from calcined oyster shell, calcined abalone shell, dried plum, poria cocos, and jujube seed in a specific weight ratio. This invention selects highly efficient calcium sources, calcined oyster shell and calcined abalone shell, in equal proportions, avoiding the deficiency of insufficient calcium content in traditional calcined dragon bone. It targets and supplements local calcium ions in the stomach, enhances the stabilizing effect of calcium ions on potassium ion channels, inhibits abnormal potassium ion leakage, and improves gastrointestinal smooth muscle tone. At the same time, it eliminates unsuitable medicinal materials such as Codonopsis pilosula, Astragalus membranaceus, Eucommia ulmoides, and Lycium barbarum. It uses Prunus mume to inhibit the proliferation of harmful bacteria in the small intestine and reduce fermentation and gas production, Poria cocos to supplement gastrointestinal trace elements, and Ziziphus jujuba var. spinosa to stabilize potassium ion channels, restore the calcium-potassium ion balance in the stomach, improve gastrointestinal motility rhythm, and alleviate problems such as small intestinal bacterial overgrowth, insufficient gastrointestinal motility, and abdominal distension. This composition does not contain sucrose, maltodextrin, chemical additives, or irritating excipients. It is fully decocted and suitable for people with fragile gastrointestinal barriers and immune sensitivity. The raw materials are safe and readily available, the preparation method is simple, and it has broad application prospects in gastrointestinal conditioning.

The present application relates to the technical field of processing of traditional Chinese medicinal materials, and particularly to a preparation process of calcined oyster shell and application thereof. The preparation process of calcined oyster shell provided by the present application is to freeze-dry the oyster shell after water absorption, so that the water crystal in the oyster shell sublimes to form a porous and loose structure, and then two-stage microwave frequency conversion calcination is adopted to heat and calcine the inside and outside of the oyster shell at the same time, so that the calcined oyster shell with crispness and significant medicinal properties is formed. The preparation process of calcined oyster shell provided by the present application can not only shorten the calcination time and reduce the calcination temperature, but also effectively prevent the conversion of calcium carbonate into calcium oxide to maintain the efficacy. The calcined oyster shell prepared by the process has the advantages of crispness, easy crushing, high calcium carbonate content and high dissolution rate of effective components, and also has a strong anti-ulcer effect, especially a significant therapeutic effect on peptic gastric ulcer.

This invention discloses a sweet potato tuber cracking characteristic-related protein, IbFLZ1, its encoding gene, and its applications. This invention involves transferring the IbFLZ1 protein encoding gene into sweet potato. Compared to untransformed control sweet potatoes, overexpression of IbFLZ1 protein significantly increases tuber cracking and starch content, while significantly reducing soluble sugar and calcium content. Conversely, by using interference expression technology to downregulate the expression of IbFLZ1 protein or its encoding gene in sweet potatoes, compared to untransformed control sweet potatoes, tubers no longer crack, starch content is significantly reduced, and sucrose, maltose, and calcium content are significantly increased. The IbFLZ1 protein and its encoding gene of this invention lay the foundation for the breeding of crack-resistant sweet potato varieties.

The application discloses an additive capable of improving calcium in cattle feed and a preparation method thereof, and relates to the technical field of feed additives. The additive comprises the following components in mass fractions: nano calcium carbonate-chitosan composite microspheres 15-25 parts; calcium lactate 8-12 parts; calcium-chelated modified diatomite 10-18 parts; vitamin-cyclodextrin inclusion compound 0.1-0.3 parts; composite probiotics 3-6 parts; traditional Chinese medicine polysaccharide compound 5-10 parts; and xylo-oligosaccharide 2-4 parts. The application fully plays the synergistic effect of inorganic calcium and organic calcium by compounding multiple calcium sources and adopting the composite microsphere technology, prevents the loss of calcium in the stomach, eliminates the antagonistic effect of anti-nutritional factors on calcium, and thus improves the bioavailability of calcium. Meanwhile, the synergistic effect of the composite probiotics and high-purity xylo-oligosaccharide enhances the regulation ability of the intestinal microecology, and creates a good environment for the absorption of calcium.

The invention relates to a nutritional composition comprising carbohydrates, protein and a fat composition, wherein:(a) the nutritional composition has a total calcium content on dry matter of at least 3.5 g / kg;(b) the protein comprises casein;(c) the nutritional composition has a content of protein-bound calcium of 7.5 mmoles or less per 10 grams of casein; and(d) the ratio NPN to TN is 0.7 or less, with:NPN meaning non-protein nitrogen in the nutritional composition in grams per 100 grams of nutritional composition (g / 100 g); andTN meaning total nitrogen (TN) in the nutritional composition in g / 100 g.The invention further relates to a process for the preparation of the nutritional composition in powder form and to the composition for use in the prevention of gut discomfort and constipation in human subjects, in particular human subjects of 0 to 36 months of age.

Dairy creamer compositions and methods of producing the same. A dairy creamer composition is provided, the dairy creamer composition comprising: (i) milk fat; (ii) sodium caseinate; (iii) one or more stabilizers; and optionally, at least one of: (iv) sugar; and / or (v) a flavoring agent; and / or (vi) one or more mouthfeel enhancers; wherein the composition: a) is substantially free of native milk protein and b) is substantially free of milk minerals, has a calcium content of less than 100 mg / 100 g based on the dry weight of the composition.

This application provides a method, apparatus, and system for detecting the carbon fixation efficiency of calcium-based components and free total calcium in steel slag. The method involves obtaining the following samples: preparing carbonized steel slag powder samples and raw steel slag powder samples; determining the calcium-based compound content parameters: detecting the mass fraction of calcium-based compounds in the raw steel slag powder samples; determining the carbon dioxide release parameters: performing programmed temperature rise tests on the carbonized steel slag powder samples and raw steel slag powder samples under an inert atmosphere to obtain the mass fraction of carbon dioxide released by the decomposition of calcium carbonate in the carbonized steel slag powder samples and raw steel slag powder samples; determining the free total calcium content parameters of each sample; and calculating the carbon fixation efficiency: based on the aforementioned parameters, calculating the carbon fixation efficiency of the calcium-based components and the free total calcium in the steel slag, accurately correcting background carbon interference, establishing a dedicated carbon fixation efficiency detection and calculation system for the inherent calcium-based components and free total calcium in steel slag, and solving the problem of result deviation in existing detection methods.