58results about How to "Increase iron content" patented technology

A process for hydraulic fracturing including the steps of (a) providing a fracturing fluid by combining water, proppant, an oxidizing biocide, and a friction reducer; (b) introducing the fracturing fluid into a well; and (c) controlling the pH of the fracturing fluid to a pH of at least about 4.5.

Belonging to the field of cement production and also relating to the field of building materials, the invention provides a high early strength and high corrosion resistant Portland cement and a preparation method thereof. The high early strength and high corrosion resistant Portland cement is mainly applied to engineering projects in complex marine environments and the west harsh environments. The high early strength and high corrosion resistant Portland cement is characterized by containing, by weight percentage, 60%-90% of a high iron and low calcium cement clinker mineral component, 2%-10% of an auxiliary functional component, 5%-25% of an auxiliary cementitious component, and 3%-7% of industrial gypsum. The high iron and low calcium cement clinker mineral component is mainly prepared from high iron and low calcium Portland cement clinker and high iron and low calcium Q phase cement clinker in a mass ratio of 5-15:1. The cement not only has strong seawater erosion resistance and high early strength, but also has the characteristics of low shrinkage and low hydration heat.

The invention discloses a purification technique of steel slag magnetic separation products, which comprises the following steps: (1) the steel slag magnetic separation product is put into a ball mill and water is added, (2) full grinding is processed, the product is discharged from the exhaust end of the ball mill naturally and divided into up-screen product and below-screen product through a cylinder screen, (3) the up-screen product is divided into block iron and tailings by magnetic pulley, the block iron is dried by dryer to make water content below 2%, (4) the product below screen is divided into overflow and sand-returning by a classifier, and the overflow grade of the classifier is controlled by the size of the spray water, which controls the sand-returning grade of the classifier, and (5) the sand-returning is conveyed into the fine powder feed chute through belt, the classifier overflow is conveyed to the thickener through a pump, and the underflow of the thickener is filtered by the filter and conveyed into the tail powder feed chute. The purification technique of steel slag magnetic separation products has the advantages of no non-magnetic and weakly magnetic material loss, full and complete recovery, raising the content of iron of luppen from 60% to 65% to above 90%, raising the grade of the magnetic separation powder from 40% to 50% to above 60%, raising the content of iron of steel slag product completely, and raising the comprehensive utilization ratio of the steel slag.

The invention specifically relates to an approach to produce granular pig iron by oxide iron sheet which belongs to the metallurgical iron making technology field. The invention mainly solves the problem of recycling the waste oxide iron sheet to make steelmaking materials. The special points of the technology are described below: according to the weight unit, the materials are oxide iron sheet (65 per cent to 75 per cent in weight ratio), coal powder (18 per cent to 30 per cent), lime (4 per cent to 8 per cent) and binder (1 per cent to 12 per cent). The above materials are crushed, marbled, reduced and separated to produce finished granular pig iron. The invention is characterized in that: the production has high iron containing but low sulphur and other miscellaneous substances contained, therefore can be taken as the steelmaking material in replacement of waste steel or pig iron, alleviating the tension situation of steel making material lacking; effectively using the mass waste oxide iron sheet of the steel and iron enterprises, the invention turns the waste to the treasure and lowers the production cost greatly; the technical process is easy, the equipment cost is low and the realization is easy. As a newly developed and innovated and advanced technology, the invention is expected to become an important direction of iron steel manufacturing technology.

The invention discloses a slagging and antifoaming agent which is used in blast-furnace iron making. The slagging and antifoaming agent is prepared from the following raw materials in parts by weight: 8-20 parts of fluorite, 4-10 parts of industrial sodium carbonate, 30-60 parts of wollastonite, 15-20 parts of cement clinker and 10-20 parts of coke. The fluorite, the industrial sodium carbonate, the wollastonite, the cement clinker and the coke are mixed, stirred, granulated, dried and packaged, so that the raw materials are mixed to exert effects; and the slagging and antifoaming agent has a better slagging and antifoaming effect in iron making by virtue of proper alkalinity, lower melting point and extremely good fluidity. Due to the adoption of the technical scheme, compared with the prior art, the slagging and antifoaming agent has the advantages of no dust, environmental friendliness and unavailability in corrosion of refractory materials and equipment.

The invention provides a rare earth copper and iron alloy and a preparation method and an application, belonging to the technical field of nonferrous metal materials. The rare earth copper and iron alloy provided by the invention, in percentage by mass, comprises 0.25-0.5% of rare earth elements, 8-20% of Fe and the balance Cu. According to the invention, the rare earth elements are added in the Cu-Fe alloy, functions of purifying the alloy, refining crystalline grains and prompting separation of a Fe phase are realized, and conductivity of the Cu-Fe alloy is improved; in the alloy, content ofan iron element is high, dosage of copper is low, and thus, production cost is reduced; and dosage of the rare earth elements is relatively higher, and thus, affection of the iron element on conductivity of the alloy can be reduced. A result of an embodiment shows that the rare earth copper and iron alloy provided by the invention has conductivity of more than 56% IACS, strength of extension of more than 768 MPa and rate of elongation of more than 2.9%.

The invention discloses an asparagus lettuce planting method, and relates to the technical field of planting. The method comprises the steps of soil preparation and fertilization, preparation of asparagus lettuce seeds, sowing and seedling growing, field planting, field management, harvesting and the like. The asparagus lettuce planting method has extremely remarkable advantages that the germination rate of the seeds reaches 92.3%-97.4%, the survival rate of transplanted seedlings reaches 86.9%-96.2%, the cultivated seedlings are strong in growth vigor, developed in root system and strong in disease resistance, and the morbility of downy mildew and black spot is obviously lowered in a cultivation period.

The invention provides GA / Fe2+ nanoparticles, composite nanoparticles thereof, preparation and application. The GA / Fe2+ nanoparticles comprise or are obtained by compounding the following raw materials: Fe2+ salt, PVP and GA. ZIF-8 is adopted to encapsulate the GA / Fe2+ nanoparticles and carry drugs such as DOX and / or GOX to obtain the composite nanoparticles, the content of iron ions in tumor cells can be remarkably increased, meanwhile, in combination with the carried drugs, a synergistic effect on tumor killing is achieved, a Fenton reaction is promoted, tumor cell iron death is induced, andtherefore, growth of the tumor cells is effectively inhibited.

The invention relates to a low-phosphorus corrosion and scale inhibitor which comprises the following components in proportion by weight: 10 parts of organic phosphonate, 5 parts of copper corrosion inhibitor BTA, 30 parts of acrylic acid / 2-methyl-2'-acrylamido propanesulphonic acid polymer as a dispersant, 10 parts of zinc sulfate ZnSO4 as a pitting resisting agent and 0.2-0.3 part of molybdate. The price of the corrosion and scale inhibitor is further lower than that of a like medicament imported from a foreign country, lowers the use cost of clients, reaches the index of a national sewage discharge standard and protects the environment. When circulating water is concentrated to be four times, the corroding trend of the circulating water is quite serious, and together with the characteristic of high content of iron ions in the circulating water, the low-phosphorus corrosion and scale inhibitor is selected to achieve the effect of well inhabiting system corrosion.

Processes for forming ferric chloride solutions that are stable at relatively low temperatures and suitable for transportation without precipitation are provided. The stable ferric chloride solutions have an iron content of about 16 to about 23 weight percent and a hydrochloric acid content of about 11 to about 17 weight percent, wherein the ferric chloride solution is a stable solution and / or reversibly freezes at −10° C. Also disclosed are processes for reconstituting the stable ferric chlorides solutions to provide a final iron content of 10 to 14 weight percent and lower the concentration of hydrochloric acid contained therein.

E invention discloses an asparagus lettuce seedling culture method capable of realizing a high germination rate. The method comprises the steps of asparagus lettuce seed preparation, asparagus lettuce seed soaking pretreatment, asparagus lettuce seed pharmaceutical treatment, asparagus lettuce seed sterilization, asparagus lettuce seed germination acceleration and asparagus lettuce seed sowing. Compared with existing asparagus lettuce seedling culture techniques, the method has the advantages that the germination rate of seeds is 94.3-96.4%, seedling survival rate after transplantation is 89.9-94.4%, the cultured seedlings are high in growth vigor and have a strong root system and high disease resistance, the occurrence rate of downy mildew and black spot is reduced remarkably in the culture period, adaptability is high after transplantation, the cold resistance of asparagus lettuce can be improved, the content of iron, the content of zinc and the content of selenium in cultured asparagus lettuce are increased by 11%, 15% and 5% respectively, comprehensive nutritive value is increased remarkably, asparagus lettuce stems are more robust, the content of dietary fiber is increased obviously, taste is good, yield is high, and economic benefits are high.

The invention discloses a preparation method of wear-resistant cement suitable for roads and bridges, and relates to the technical field of building materials. The preparation method of the wear-resistant cement suitable for roads and bridges comprises the following components by mass: 75%-85% of Portland cement clinker, 0.02%-0.05% of an enhanced grinding aid, 5%-15% of superfine slag powder, 3%-8% of steel slag powder, 3%-6% of dihydrate gypsum, and 0.3%-1.0% of steel fiber. The invention aims to develop the cement suitable for roads and bridges, solid wastes such as steel slag are comprehensively utilized in the development and preparation of the cement, the cement not only meets the railway concrete standard and is beneficial to improving the durability of cement concrete, but also has the characteristics of small dry shrinkage rate, good wear resistance and the like, and the problem of single function of the current cement product is effectively solved.

The invention belongs to the field of agricultural waste recycling utilization, and relates to a method for producing biogas through combined anaerobic fermentation of pig farm manure water treated by biochar-loaded nanoscale zero-valent iron and corn straws. The method comprises the following steps of: (1) filtering the pig farm manure water to remove impurities; (2) crushing the corn straws to 1-3cm in length, and drying the corn straws to constant weight; (3) processing the pig farm manure water by the biochar-loaded nanoscale zero-valent iron, and carrying out vibration treatment; (4) uniformly mixing dried straw materials with the pig farm manure water obtained in the step (3), and storing for 2-3 days under a medium temperature condition; and (5) adding an active strain into the mixture obtained in the step (4) according to the total volume of the fermentation material liquid, adding water according to the total mass of the fermentation material liquid to adjust the content of dry matters (TS) of the corn straws to be 6-8%, adjusting the pH value of the fermentation material liquid to be 6-8, and carrying out medium-temperature combined anaerobic fermentation. The method provided by the invention can improve gas production efficiency and shorten the fermentation period.

A method of processing a liquid having magnetic particles includes increasing a magnetic particle content in at least a portion of the liquid; forming an effluent using the portion of the liquid that has the increased magnetic particle content; and filtering the effluent using a magnetic field.

A method for increasing the differentiation ratio of green wheat seedlings cultured with wheat pollen features that the extracted liquid from potato and mother liquid of iron salt are added to induct culture medium while the culture condition is modified to greatly increase the differentiation ratio and yield rate of green seedlings and decrease the albino rate. It creates a new approach for the cytogenetic research of wheat haploid or ampliploid population and the wheat-ploid culure research with lower energy consumption and cost.

The invention relates to a landrace breeding method. The method comprises the following processing steps: (1) castrating piglets; (2) weaning the piglets; (3) when the pigs are 60-120 days old, feeding the pigs with a feed containing the following raw materials in parts by weight: 35 parts of wheat bran, 18 parts of pumpkin powder, 4.5 parts of bone powder, 11 parts of soybean cakes, 3 parts of red beans, 9 parts of rape seed cakes, 15 parts of brewer's grains, 2 parts of duck blood powder, 7 parts of vinegar residues, 5 parts of barley powder, 0.01 part of compound vitamin, 0.02 part of compound amino acid and 0.01 part of compound trace elements; (4) when the pigs are older than 121 days, feeding the pigs with other compound feeds. The method has the beneficial effects that the growth rate of the landrace can be further increased and the health care value of the pork can be improved by using different feeds and processing modes in the growing period of the landrace.

The invention discloses a superhigh-magnetic iron ore separation device. The device allows iron ore sand to be influenced by a superhigh-magnetic magnetic field; a lateral movement distance is greatly increased than before; and the farther the ore sand runs, the higher the grade is. The superhigh-magnetic iron ore separation device is characterized by comprising a magnetite sand flow making high-speed motion, a superhigh-magnetic electromagnetic coil, division plates and hoppers, wherein the magnetite sand flow passes through a superhigh magnetic field generated on the superhigh-magnetic electromagnetic coil at a high speed;the magnetite sand flow passes through the superhigh magnetic field generated on the superhigh-magnetic electromagnetic coil at a high speed and magnetite sand passes in a tangential direction of a magnetic force line at a high speed by the action of the superhigh magnetic field. The device has three elements that 1, the superhigh magnetic field is generated; 2, the iron ore sand moves in the tangential direction of the magnetic force line; and 3, the magnetite sand passes at the high speed.

The invention discloses a preparation method of micron-sized homogeneous magnetic microspheres. The method comprises the following steps: uniformly mixing homogeneous ion exchange resin microspheres with ferric salt, organic alkali, polyhydric alcohol and a surfactant, sufficiently adsorbing the substances on the surfaces of the ion exchange resin microspheres, transferring the ion exchange resin microspheres into a high-pressure reaction kettle, and making reacting at 170-220 DEG C for a period of time to obtain the homogeneous magnetic microspheres. According to the preparation method, the Fe3O4 nanocluster with high saturation magnetization intensity is assembled by adopting the homogeneous polymer core, so that the process is highly controllable, the particle size is uniform, the magnetic response is fast, and no residual magnetism exists. The magnetic microspheres prepared by the method can be used in the biomedical engineering fields of cell sorting, single cell sequencing and the like after further surface chemical modification.

The invention discloses a composite desulfurizing agent and belongs to the technical field of gas purification. The composite desulfurizing agent comprises an iron-containing complex, an alkaline substance, a settling agent, a stabilizer, hydroquinone and water, wherein the iron ion concentration is 0.5-20 g / L and pH value is 7-8.5; the settling agent is a mixture of polyacrylamide, sodium polyacrylate, polyaluminium chloride and hexadecyl trimethyl ammonium hydroxide; according to the invention, the iron ion content is high, the sulfur capacity is high, the generated secondary salt amount issmall, sulfate ions can be removed along with sulfur, so that the situation that the desulfurization performance is reduced due to excessive accumulation of the sulfate ions in the solution is avoided, and therefore the performance is stable, secondary pollution is avoided, and generated sulfur particles settle fast and are convenient to separate.

The invention provides a plant salt containing a soybean extract. The plant salt is prepared from the following raw materials in parts by weight: 2 to 4 parts of soybean extract and 6 to 8 parts of suaeda salsa plant salt; in the soybean extract, the content of soy isoflavone is 4.9 percent, and the content of iron element is 12.1mg / g; in the suaeda salsa plant salt, the content of flavone is 2.6 to 2.7mg / g, and the content of Fe is 690 to 700mg / kg. The invention also provides a preparation method of the plant salt containing the soybean extract; the preparation method comprises a chromatography step. The plant salt containing the soybean extract, prepared by the preparation method provided by the invention, has an effect of reducing the mortality rate of alcohol poisoning mice and can be used for relieving hepatomegaly.

The invention belongs to the technical field of processing of animal stomach contents and particularly discloses a method for preparing feed by fermenting cattle and sheep stomach contents. The methodcomprises the steps of cattle and sheep stomach content collection, deodorization, pH (potential of Hydrogen) adjustment, sterilization, humidity regulation, microbial fermentation, feed preparationand the like, wherein during the fermentation, complex bacteria are combination of anaerobic bacteria and aerobic bacteria, anaerobic fermentation is mainly adopted and a good anaerobic environment can be provided for the anaerobic bacteria by adding the aerobic bacteria. The method has the advantages that the feed prepared by the fermentation contains nutrients of protein, small peptides, cellulose, vitamins, probiotics, trace elements and the like and has good palatability; the healthy growth of livestock and poultry animals can be maintained; and nutritional elements for immune function ofthe animals are met, so that the immunity of the animals is improved.

The invention discloses a method of safe rice planting on cadmium-contaminated rice field soil by utilizing an EDDHA chelate iron fertilizer, and belongs to the technical field of remediation of heavymetal contamination of soil. The method of safe rice planting on the cadmium-contaminated rice field soil by utilizing the EDDHA chelate iron fertilizer comprises the following steps that the cadmium-contaminated rice field soil is selected, a rice field is irrigated, and a shallow water layer is kept; uniform basal application of the EDDHA chelate iron fertilizer is conducted on the shallow layer, the field is ploughed, so that the EDDHA chelate iron fertilizer is sufficiently mixed with soil of a plough layer uniformly, and a water flooding state continues to be kept; rice seedlings are transplanted and managed by a conventional method, and rice is harvested. According to the method of safe rice planting on the cadmium-contaminated rice field soil by utilizing the EDDHA chelate iron fertilizer, the EDDHA chelate iron fertilizer is applied to the cadmium-contaminated rice field soil, then the rice is planted, the content of iron elements in rice plants can be increased, cadmium element accumulation of the rice can also be reduced, therefore the iron-enriched low-cadmium rice is produced on the low-cadmium-contamination rice field soil, and the safe production standard of the cadmium content of the rice is met.

The invention discloses low-heat high-corrosion-resistance Portland cement and a preparation method thereof. The low-heat high-corrosion-resistance Portland cement is made from, by weight, 62-80 partsof limestone, 0-20 parts of carbide slag, 4-10 parts of clay, 2-5 parts of slag, 2-6 parts of sulfuric acid slag or copper slag, 3-5 parts of lead zinc ore, 3-5 parts of apatite or chlorine salt residue, 1-3 parts of an activator, 1-3 parts of a mineralizing agent, and 0.1-4 parts of a stabilizer. The preparation method includes the steps of grinding the materials, delivering the powders into a homogenizing base for homogenizing; conveying the homogenized material to a suspended preheater and a cracking furnace with the temperature of 850-870 DEG C; transferring to a rotary kiln for calcining, wherein the rotary kiln rotates at 3.2-3.5 rmp, a grate cooler has rod push rate of 9-17 per min, and calcining temperature is 1250-1350 DEG C. The low-heat high-corrosion-resistance Portland cementand the preparation method thereof have the advantages that compressive strength over 28 days is not less than 50 Mpa; compressive strength over 90 days is not less than 70 Mpa; hydration heat over 7days is not higher than 210 KJ / kg; drying shrinkage over 28 days is less than 0.04%; chloride ion diffusion resistant coefficient is less than 0.85*10-12 m<2> / s.

The invention relates to the technical field of cherry planting and in particular relates to a black pearl cherry and corn interplanting method. With interplantation of the black pearl cherry and the corn, work amount of soil loosening and weeding for a cherry base each year can be reduced and further labor intensity can be reduced; with interplantation of high-stalk crop, such as corns, a biological competition relationship is formed between cherry trees and the corns, so the cherry trees can upwardly grow and height of cherry tree branch buds can be improved; then the cherry tree branch buds are layered to form a shed, so cherry picking work can be facilitated and nutrition can be absorbed by the cherry trees; beautiful environment can be provided for cherry tree plantation base; people can view the beautiful scene; the black pearl cherry and corn interplanting method is advantageous in that the cherry trees and the corn plants can compensate to each other and can absorb nutrition elements remaining in the soil; with soil turning and ploughing work, deficiencies of the cherry tree plantation base due to fertilizer application can be avoided; and cherry tree plantation base quality can be enhanced and environment pollution can be reduced.

The invention discloses an apple polyphenol-spirulina extract compound chicken feed for promoting cell metabolism and increasing egg yield as well as a preparation method thereof. Corns are utilized as a main ingredient of the apple polyphenol-spirulina extract compound chicken feed; and skimmed white fish meal, fermented mulberry fruit residue powder, ferric methionine, the apple polyphenols, the spirulina extract, bentonite and so on are combined as auxiliary ingredients so as to carry out modification treatment on the corns. Thus, the properties and the functions of the corn powder are changed so as to enhance the physiological and metabolic functions of the in-vivo cells of the chickens, improve the production properties of the chickens, increase the egg yields of the chickens and improve the egg qualities. Moreover, chicory leaves, violets and sheep blood protein powder are combined, so that the feed is capable of promoting the growth and the weight-gaining of the chickens as well as improving the production properties of the chickens. In addition, the chicory leaves and the violets are capable of improving the digestion functions of the chickens as well as promoting the absorption and the utilization of the chickens to the nutrients; and a bighead atractylodes rhizome extract is capable of improving the immunity of the chickens and promoting body health of the chickens.

The invention relates to hickory nut kernels. The hickory nut kernels comprise the following raw materials in parts by weight: 80-100 parts of hickory nut kernels, 60-80 parts of selenium-enriched summer and fall green tea, 5-10 parts of Chinese hawthorn leaves, 3-5 parts of mint leaves, 20-30 parts of nutritive paste, 10-15 parts of white sugar, and 3-5 parts of table salt, wherein the nutritivepaste comprises the following raw materials in parts by weight: 10-20 parts of stone mill flour, 5-10 parts of selenium-enriched corn flour, 5-10 parts of selenium-enriched poria cocos powder, 6-8 parts of selenium-enriched sesame seed powder, 7-9 parts of white sugar, 2-3 parts of table salt, and 0.02-0.04 part of selenium-enriched yeast; and the hickory nut kernels are the hickory nut kernels this season, of which the astringent taste is removed. According to the hickory nut kernels disclosed by the invention, the selenium-enriched summer and fall green tea can be sufficiently used, so thatthe hickory nut kernels are leisure and unique in fragrance, can reduce fat and remove greasy feel, and are green and healthy, idle resources are sufficiently used, and the production cost is reduced;and besides, the hickory nut kernels have the function of strengthening nutrients. Raw material components rich in natural vitamin E and ferrum are used for performing synergistic reaction on selenium elements, so that absorption of the selenium elements by human bodies is promoted, and the hickory nut kernels have good health-care effects on human bodies.

The invention provides a brain invigorating anti-oxidation health product and an application thereof. The brain invigorating anti-oxidation health product is prepared from 40 to 70 parts by weight ofwalnut powder, 3 to 12 parts by weight of freeze-dried salicornia bigelovii powder, 1 to 6 parts by weight of spina date seed extract, 10 to 30 parts by weight of Hovenia dulcis, 2 to 10 parts by weight of bitter chrysanthemum, 3 to 10 parts by weight of Angelica keiskei and 0 to 0.2 parts by weight of trace elements. The brain invigorating anti-oxidation health product has excellent brain invigorating and antioxidant effects, can maintain beauty, keep young and prolong the life after long-term use, can improve memory and cognitive ability, has a certain effect of preventing senile dementia, has excellent effects and has a sweet and sour taste and pleasant aroma.

The invention discloses a meat quality improvement additive capable of improving the blood replenishing function of chicken meat, and a preparation method of the meat quality improvement additive. The meat quality improvement additive is prepared from the following raw materials in parts by weight: 300-500 parts of Chinese yam starch, 200-300 parts of red bean protein powder, 20-30 parts of apple juice, 3-4 parts of diatomite, 6-8 parts of gluconic acid, 0.5-1 part of a ferrous lactate preparation, 0.05-0.1 part of jasmine flower essential oil, 1-2 parts of pig bone soup, 0.5-1 part of a Chinese wolfberry fruit extract, 2-3 parts of Chinese prickly ash water and 25-45 parts of yolk powder. According to the meat quality improvement additive and the preparation method thereof, the quality of the chicken meat can be improved, the content of iron elements in the chicken meat is increased, the blood replenishing function of the chicken meat to human bodies is improved, the properties of muscle fibers can be improved, the chicken meat is promoted to be tender and juicy, the grade of chicken carcass is increased, the oxidation of fat and cholesterol in the meat quality is reduced, and the fresh keeping time of the chicken meat is prolonged. In addition, through the adoption of the meat quality improvement additive disclosed by the invention, the immune function of chickens can also be strengthened, the resistance capacity of the chickens to bacteria and viruses is strengthened, and the survival rate of chickens is increased.