1727 results about "High calcium" patented technology

The invention discloses a method of vanadium slag direct entering high temperature roasting furnace calcify roasting, that is, high calcium vanadium slag or ordinary vanadium slag and lime or limestone are mixed uniformly without the gradual heating up process from low temperature to high temperature, the mixture enters into the roasting furnace of more than 600 DEG C for calcified roasting., the vanadium of the vanadium slag is changed into vanadium acid calcium, vanadium of the roasting clinker is dissolved into the solution under the leaching function of sulphuric acid solution, vanadium oxide and the like vanadium products are further made. The invention needs no gradual heating up process from low temperature to high temperature of the prior sodium treatment roasting, thereby reducing roasting time, improving productivity of unit and reducing production cost.

The present invention relates to the preparation process of high purity aragonite type calcium carbonate whisker. The present invention prepares aragonite type calcium carbonate whisker with lime or slaked lime as main material and magnesium salt as crystal salt controlling agent and through a CO2 carbonating process. The process features the repeated use of the magnesium salt solution and the homogeneous replenishment of lime slurry during carbonating reaction. The process has low production cost, less environmental pollution and high calcium carbonate whisker yield, and the prepared calcium carbonate whisker has high purity and high length/diameter ratio. The process is suitable for industrial production of calcium carbonate whisker.

The invention discloses a high-calcium soft candy which comprises the following raw materials by weight portion: 1 to 16.6 parts of candyeners, 1.3 to 14.2 parts of edible calcium-containing compounds, 0.1 to 1.6 parts of gels, 0 to 1 part of vitamin and 0 to 1 part of food additive, wherein, the content of calcium in the high-calcium soft candy is 2.6 g to 20.0 g/100 g. The high-calcium soft candy has the benefits as follows: firstly, the calcium content is high, so that the eating frequency of people taking calcium supplements is decreased; secondly, the soft candy has a good taste and can be accepted by a majority of people easily, particularly by children; and thirdly, the soft candy has a better stability, the calcium content, taste and microbial index conform to standards within theguarantee period, and the guarantee period is twelve months.

The milk powder is prepared with the materials including: fresh milk or milk powder, defatted milk powder or defatted milk, lactase, desalted whey powder, whey protein powder and/or soybean protein powder, vegetable oil, phospholipid, oligose, honey, calcium lactase, CPP, wolfberry fruit, vitamins and minerals. The product may avoid lactose intolerance, has the effects of resisting fatigue, resisting senility, raising memory and improving gastrointestinal tract function, and has the advantages of no cane sugar, high calcium content and low lactose content.

The invention relates to a technique for producing calcium carbide and cogeneration by a two-stage method and a device thereof. The technique comprises the following steps: after being preheated at a shaft furnace at the upper section, massive carbonous raw material and massive calcic raw material enter an arc furnace at the lower section; while blowing oxygen and coal powder and supplying heat by the electrode in the arc furnace, the raw materials react to produce calcium carbide; and the produced calcium carbide furnace gas is dedusted and combusted by a gas turbine so as to drive the generator to generate power, and sensible heat of exhaust gas is recycled by an exhaust-heat boiler, thereby centrally supplying heat to cities and towns. The invention has the advantages of capability of continuous production, high yield, low investment, low energy consumption, high calcium carbide grade, energy saving, high efficiency and investment saving, and realizes coordinated development of economy, environment and energy sources.

The invention provides a method for processing marinated beef with bean fragrance. The method comprises the following working procedures of marinating beef, cooking beans, mixing the beef and the beans, packaging in vacuum, sterilizing and putting a finished product into a storehouse. The marinated beef with the bean fragrance has rich nutrition; the meat is soft, tender and matured; the fragrance is rich; the taste is proper; the flavor is unique; the meat has high protein, low fat and high calcium; the marinated beef with the bean fragrance has the health protection effects of tonifying the spleen, stimulating the appetite, moistening the lung, reducing the lip, promoting the sleeping and the like and also has the effects of nourishing the body, complementing the calcium, expelling the toxin, beautifying and eliminating acne; the processing technology is scientific; and nitrite is eliminated.

The invention relates to a salt, alkali and calcium combined cycle production technology by the use of well mineral salt. Based on the exploitation of brine from well mineral salt, the salt, alkali and calcium combined cycle production technology by the use of well mineral salt is a cycle production technology, which focuses on the technology for making alkali from brine by the ammonia-soda process and takes account of the vacuum salt-making (including the brine refinement) and calcium-making technologies. Alkali-making wastewater replaces most fresh water to be injected into a salt mine well to collect brine, and the obtained high-calcium brine is taken as the raw material of the salt and calcium (including liquid calcium) co-production as well as the raw material for preparing alkali and other chemical production raw materials, wherein the liquid calcium can be used to produce liquid salt; alkali-making waste residues are injected into an underground dissolution cavern, namely a salt cavern which is formed by the exploitation of brine from well mineral salt, thus accomplishing the combined cycle production technology in which alkali-making and salt-making technologies are closely related with materials. The produced wastes are used as resources or undergo a harmless treatment, thus protecting the environment. In addition, the utilization rate of sodium chloride in rock salt reaches 100%, achieving maximum efficiency.

A hard polyvinyl chloride material filled by more calcium carbonate is prepared from nano (or micron)-class calcium carbonate as filler, polyvinyl chloride resin, thermal stabilizer, lubricant, impact modifier, and titanium oxide powder through fusing, mixing and extruding out. Its advantages are high tension strength, elongation for break, impact strength and vicat softening point.

The present invention relates to a biological fermentative production technology of extracting high-calcium powder, chondroitin sulfate and collagen from animal cartilage which includes the following steps: the animal cartilage is simply broken into 5-20mm fragments, mixed with 1-4 times weight of water in the reaction kettle, heated to 100DEG C and kept for 1-2 hours to denature the proteins, then cold water is passed over into the kettle jacket to cool down the kettle to 40-50DEG C, compound enzyme in mass ratio of 1:0.001 which is mainly collagenase is then added, the mixture is stirred and hydrolyzed for 8-12 hours under the condition of 40-50DEG C, pH 7-8, bone residue that contains calcium phosphate is obtained after simple filtration through 100-meshed sieves; the filtrate is clarificated after fine filtration with filter press, then ethanol is added to the final concentration of 60-70%, chondroitin will be sedimentated, while remaining liquid is the mixture of collagen and ethanol. The sedimentated calcium phosphate is washed and dried and becomes calcium phosphate powder. The crystal sediment of chondroitin is purified by ethanol-washing. Collagen is separated after the mixture of collagen and ethanol goes through the ethanol regenerating column. This technology can produce different products with high purity from animal cartilage and solves the problems of pollution and single product of traditional technology.

The invention relates to a beneficiation method of high calcium carbonate content type fluorite ore and belongs to the field of beneficiation. The beneficiation method comprises the steps of conducting flotation, wherein ore grinding is conducted on the high calcium carbonate content type fluorite ore until the fluorite ore with the granularity smaller than 74 microns accounts for 78%-92% firstly, secondly, sodium carbonate serving as a pulp regulator, acidized sodium silicate serving as a gangue inhibitor and sodium oleate serving as a catching agent are added in sequence, and then a fluorite rough concentrate is obtained; conducting concentration six times, wherein concentration is conducted on the fluorite rough concentrate obtained through the last step six times, acidized sodium silicate serving as a gangue inhibitor and tannin are added in sequence every time concentration is conducted from the third time to the sixth time, and a fluorite concentrate pulp is obtained after concentration is conducted six times; conducting acid leaching, wherein the fluorite concentrate pulp obtained from the last step is concentrated, hydrofluoric acid is added, the fluorite concentrate pulp and the hydrofluoric acid are evenly mixed, leaching is conducted, and a high-grade fluorite concentrate can be obtained after liquid-solid separation. By the adoption of the beneficiation method, the beneficiation effect is good and the recovery rate of fluorite is high.

The invention belongs to the ironmaking and steelmaking field, and provides a steelmaking regulator with settled dust as a main material and a method for preparing the same. The invention aims at solving the problem existing in prior art that discharged settled dust causes environmental pollution. The steelmaking regulator is prepared from the following materials in weight percentage: 67 to 73 percent of settled dust, 7 to 13 percent of silicon carbide material, 15 to 20 percent of magnesium material, and bonding agent which accounts for 5 to 10 percent of the total weight of the settled dust, the silicon carbide material and the magnesium material. The steelmaking regulator can completely replace the prior technique of adding modifier and furnace protecting material, has good slag regulating and slag thickening effect, has better slag splashing furnace protection effect compared with the prior product, reducing TFe in slag, obviously lowering production cost of steelmaking, thoroughly eliminating environmental pollution caused by the emission of steelmaking high calcium settled dust and realizing the recovery and the reutilization of resources.

The invention provides a method for removing nitrogen and phosphorus in sewage by zeolite synthesized by coal ash. Low-calcium coal ash and high-calcium coal ash are respectively used as raw materials so as to synthesize zeolite with different removing effects by alkali fusion method. The zeolite synthesized by the low-calcium coal ash is adopted for processing ammonia nitrogen-contained sewage, the zeolite synthesized by the high-calcium coal ash is adopted for processing phosphorus-contained sewage, and the zeolite synthesized by the low-calcium ash coal and high-calcium ash coal with different mixing ratios is adopted for processing mixture sewage with different nitrogen and phosphorus ratios. In the invention, the prepared zeolite has high purity, different types of zeolite can be adopted according to sewage properties, the pollutant absorbing amount is large, and the solid adding amount in the practical application is reduced effectively. After absorbing nitrogen and phosphorus, the sludge can be used as fertilizer, so that not only the environmental pollution problems caused by waste solid coal ash, nitrogen and phosphorus in sewage and the like are solved, but also the reclamation in the pollutant is realized. According to the technology, the operation is simple, the running cost is low, and the method can be applied to industrial point source, plane source and nitrogen and phosphorus treatment in tail water of sewage treatment plants in cities and towns.

The invention provides a method for preparing vanadium oxide, which comprises the following steps of: mixing vanadium slag with calcium oxide or limestone to form a mixed material; roasting the mixed material to obtain calcified clinker; leaching the calcified clinker by using C2O4<2-> and 35-70 g/L of oxalate solution at 80-95 DEG C; after leaching, carrying out solid-liquid separation to obtain vanadium-containing leachate and residues; removing silicon from the vanadium-containing leachate, so that the silicon concentration in the vanadium-containing leachate is less than 0.1 g/L, then adding ammonium oxalate into the vanadium-containing leachate, adjusting the mol ratio of NH4<+> to TV to 2-3.5, precipitating ammonium metavanadate, and filtering to obtain ammonium metavanadate and vanadium precipitation wastewater; and oxidizing, roasting and deaminizing ammonium metavanadate to prepare vanadium pentoxide or reducing to prepare vanadium trioxide. According to the invention, on the premise of satisfying environment-friendly requirements, preparation of vanadium oxide from ordinary vanadium slag and high-calcium and high-phosphate vanadium slag is realized; furthermore, consumption of reagents can also be reduced; and the production cost is reduced.

The present invention discloses a method of producing yeast protein feed with leftovers from kitchen. The production process of high-calcium multivitamin yeast protein feed includes crushing, dewatering, adding nitrogen to neutralize, disinfection, inoculation of yeast and microbial bacteria, solid fermentation under control of computer, drying, milling, assaying and packing. It makes it possible to change waste leftovers into high-quality high-calcium multivatamin yeast protein feed.

The invention discloses a vanadium extraction technology of low-grade high-calcium vanadium-containing steel slag. The technology comprises the following steps of: a, performing pretreatment of the low-grade high-calcium vanadium-containing steel slag; b, performing oxidation calcification roasting of the low-grade high-calcium vanadium-containing steel slag; c, performing carbonation leaching treatment of the vanadium-containing steel slag after the roasting to obtain vanadium-containing leachate; d, adding an acid to the vanadium-containing leachate to precipitate vanadium, and filtering to obtain coarse vanadium; e, performing alkaline solution treatment of the coarse vanadium, and filtering to obtain V<5+>-containing filtrate; and f, adding NH4Cl into the V<5+>-containing filtrate, reacting to generate NH4VO3, and performing deamination to obtain V2O5 finally. Through the vanadium extraction technology disclosed by the invention, the requirement on calcium content is reduced; high-purity vanadium pentoxide is produced from low-grade high-calcium vanadium-containing steel slag; and the vanadium resource in the vanadium-titanium magnetite is effectively recycled and utilized. The invention provides conditions for the vanadium extraction of a converter single-link method; and the vanadium-containing molten iron is directly used for steelmaking, the vanadium enters the low-grade high-calcium steel slag, and an additional converter for vanadium extraction is not needed, thereby avoiding the interference and influence on the steelmaking caused by the additional vanadium extraction converter for vanadium extraction.

Sulfur emissions from combustion of coal and other fuels are reduced by using sugar beet lime as a sorbent during the coal burning process. In various embodiments, the sugar beet lime is added onto the coal before combustion, along with the coal into the furnace, is injected directly into the fire coal, or is added into the flue gases downstream of the furnace. The relatively high calcium content of the sugar beet lime leads to efficient sulfur capture at suitably low treat levels. Excess ash is avoided in the process.

The invention provides product compositions and a preparation method of neutral liquid high calcium milk. Every 100 weight portions of the neutral liquid high calcium milk comprises the following compositions in portion by weight: 97.50 to 99.05 portions of milk, 0.40 to 0.80 portion of milk calcium, 0.10 to 0.50 portion of hydrolyzed collagen, 0.05 to 0.30 portion of casein phosphopeptides (CPP), 0.20 to 0.60 portion of stabilizing agent and 0.10 to 1.00 portion of dietary fiber. The neutral liquid high calcium milk has high safety and nutrition, good taste, high calcium content and balanced calcium-phosphor proportion, and is easy to be digested and absorbed by human body; moreover, the high calcium milk can meet the requirements of consumers of different age groups on calcium supplementation and is favorable for strengthening bone and articular cartilage.

The invention discloses a fluidized bed technology for directly capturing CO2 in mineralized flue gas. In the technology, a high-calcium waste, such as fly ash, carbide slag, steel slag, waste cement and the like, as a raw material. A by-pass is formed on a flue gas discharge pipeline to feed a flue gas flow of which the humidity and the temperature are regulated by a temperature and humidity regulator. In a fluidized bed reactor, the flue gas flow, of which the humidity and the temperature are regulated, is contacted with the high-calcium waste in a co-current flow manner to generate calcium carbonate. After the reaction, a dust-containing gas flow discharged out from the fluidized bed reactor is fed into a cyclone separator for gas-solid separation to obtain a gas flow, wherein the gas flow is fed into the original flue gas discharge pipeline and then is fed into the chimney for being discharged. The invention also provides a fluidized bed system for directly capturing CO2 in the mineralized flue gas. The technology can not only effectively increase the utilization rate of fly ash but also reduce CO2 emission of a power plant, is simple in processes, is convenient to continuously operate, is high in device processing capacity, is small in size and less in occupied area and can be combined with the existing system conveniently. Meanwhile, the decarbonized fly ash does not influence the original use approach of the fly ash from the power plant, thereby achieving a lower decarbonization cost.

The invention discloses a high-calcium fish ball and a manufacture method thereof. The fish ball is made of minced fillet, fishbone paste, egg white, refined salt, monosodium glutamate, white ground pepper, garlic powder and the like according to fixed proportion. The manufacture method comprises the steps of 1 pretreating fish heads or fish bones, rinsing fresh chub heads or fish bones with ozone water, and washing the fresh chub heads or the fish bones with tap water; 2 manufacturing bone paste with the fish heads or the fish bones, and sequentially grinding the washed fish heads or the washed fish bones with a bone paste machine to obtain fish bone paste of certain particle diameter; 3 chopping and stirring, and placing weighted raw materials in a chopping and stirring machine to be chopped and stirred, continuously adding icy water to control temperature; 4 forming, and placing the chopped and stirred materials in a ball machine to be stirred to be formed; 5 heating to form, placed formed fish balls in water, and fishing the fish balls in tap water to be cooled when the fish balls float up; and 6 refrigerating, freezing the cooled fish balls with a double spiral quick freezer, and placing the fish balls in a refrigerator to be refrigerated. The high-calcium fish ball and the manufacture method are reasonable in formula, the raw materials are easy to obtain, production cost is low, and the manufacture method is easy to use, convenient to operate and suitable for industrialized production.

The invention discloses a composite scale inhibitor which is applicable to high-hardness high-alkali industrial circulating water, and the scale inhibitor consists of HEDP, polyaspartic acid, polymaleic anhydride, polyacrylic acid dispersant and the like. Wherein, the polyacrylic acid dispersant can be one or more of polyacrylic acid ternary dispersants or quaternary dispersants. The composite scale inhibitor has excellent scale inhibition performance and very low formation rate of calcium carbonate scale during the using process, the discharged waste water under the use of the formula can not cause the nutrition-rich pollution to the environment, thereby belonging to environment-friendly products and being particularly applicable to processing the circulating water with high calcium hardness and high alkaline hardness. The cost of using the formula for processing the industrial circulating water is very low, and the cost of a medicament added for processing each ton of water is less than 0.7 yuan, thereby having very high economic value.

The invention discloses a method for treating a low-grade zinc oxide ore by using a weakly alkaline amino acid salt system, which comprises the following steps of: grinding the complex low-grade zinc oxide ore, and performing cooperated leaching in the weakly alkaline amino acid salt system under the certain condition to ensure that zinc, lead, cadmium, copper, nickel and the like are dissolved in leachate and calcium, magnesium, iron, silicon and the like are undissolved and stay in leaching residues; adding CaO or Ca(OH)2 into the leachate to ensure that the zinc is precipitated in the form of zinc oxide and recovered, and valuable metals such as the lead, the cadmium, the copper, the nickel and the like are co-precipitated with the zinc and enriched in crude zinc oxide; and regulating the pH of solution in which the zinc is precipitated to be a certain value by using CO2, regenerating a leaching agent, returning the regenerated leaching agent for recycling, and calcining CaCO3 generated in the process of regenerating the leaching agent for recycling. The method for treating the low-grade zinc oxide ore by using the weakly alkaline amino acid salt system can be used for effectively treating various complex low-grade zinc oxide ores with high calcium, magnesium, iron and silicon content, and the operation system is mild and has small toxic and side effects on human bodies and an environment.