45 results about "Nitratine" patented technology

The invention provides a method for using nitratine to produce sodium nitrate, which is characterized in that the method comprises the steps of: crushing a piece of nitratine raw ore, and sieving the raw ore to obtain nitratine ore and nitratine ore powder; adding water into the nitratine ore powder, and agitating and leaching the powder and then gaining a clear liquid by sedimentation and clarification; positioning the nitratine ore in a leaching pond, feeding a mother liquor for cold separation and/or a washing liquid, starting up a circulating pump to circulate the leaching solution, and leaching the ore under normal temperature; inputting the leaching solution to a solar pond after the leaching; heating the leaching solution to a temperature between 30 DEG C and 80 DEG C by utilizing the stored energy in the solar pond, and extracting high-temperature concentrated solution from the bottom of the solar pond after evaporation concentration; and separating out NaNO3 through crystallization by cooling. The method is applied to low grade nitratine resources, and locations of resources are areas short of water seriously and rich in solar energy resources, and the method has advantages of energy and water saving and easy realization.

The invention relates to a production method for producing sodium nitrate with nitratine and the process steps thereof are that ore is crushed with the particle diameter below 2cm and is first treated with a multi-stage countercurrent hot soak so as to ensure that the content of NaNO3 in leaching solution is more than or equal to 450g/l, and then with a four-effect evaporation to remove NaCl and NaSO4 to ensure that the content of NaNO3 is more than or equal to 950g/l, and finally with centrifugation and drying after a three-stage vacuum cold separation crystallization to obtain the finished sodium nitrate. By adopting the method which has low dependency on natural conditions, water saving and low energy consumption and is suitable for low-grade nitratine mining, the overall yield of the sodium nitrate can reach more than 75 percent.

The invention relates to a process for producing sodium nitrate by using nitratine reverse-flow circulation extraction, which comprises steps as follows: (1) breaking ores into the grains smaller not larger than 5cm, (2) reverse-flow circulation leaching: after 2-6 stages of reverse-flow circulation immerge, the sodium nitrate content of extraction solution is increased from 300-380g/l to 390-500g/l, (3) separating, washing and drying at low temperature that exchanges heat between the extraction solution and low-temperature separation mother liquid, to reduce temperature, mixing and reducing temperature to -10-20DEG C, and keeping temperature for 100-140min, separating solid and liquid, filtering and washing via a saturated sodium nitrate, according to the mass ratio between product and sodium nitrate solution as 6/1-5/1, then drying to obtain sodium nitrate product, and feeding the separated mother liquid into the step (2), to process next circulation. The invention can save water more than 40%, and save energy more than 25%, while the single-process collecting rate is more than 25% and the total collecting rate of sodium nitrate in ore is more than 95.0%. The product obtained by low-temperature separation contains sodium nitrate more than 92%, and the washed product contains sodium nitrate more than 98%. The invention can use low-grade nitratine mine to produce sodium nitrate.

The invention discloses a technique for preparing iron concentrate from pyrite cinder by nitric acid-hydrochloric acid combined treatment, which is characterized by comprising the following steps: detecting the component content in the pyrite cinder; and if the SiO2 content in the pyrite cinder is greater than 10%, using a double-acid process, and if the SiO2 content in the pyrite cinder is smaller than 10%, adopting a nitric acid process. The technique can utilize the iron resource and eliminate pollution, thereby implementing clean production in pyrite acid making industry.

The invention relates to an ICP-OES rapid determination method for contents of chromium and iron in nickel-based superalloy, belongs to the technical field of chemical analysis test. The method comprises steps of dissolving pure nickel to serve as a matrix, adding different amounts of chromium and iron standard solutions to prepare a calibration solution, and adding an yttrium internal standard solution; simultaneously measuring the intensity ratio of the internal marking line of the internal standard element to the analysis line of the element to be measured in the calibration solution by using ICP-OES to make a calibration curve; dissolving a to-be-measured sample with nitric acid, hydrochloric acid and hydrofluoric acid, adding an yttrium internal standard solution with the same content as the standard solution, diluting with water to a fixed volume, introducing the solution into ICP-OES to measure the spectral line intensity of the to-be-measured element, and calculating the content of the to-be-measured element on the calibration curve. The calibration solution prepared by the method is similar to a sample solution in matrix, so that the matrix effect is eliminated; and a high-precision analysis instrument is used, so that the problems of complicated chemical analysis operation and low analysis speed are solved, and the method has the advantages of simplicity, rapidness, high accuracy, high precision and the like.

The invention discloses a method for preparing agricultural potassium nitrate by using nitratine and potassium-rich mother liquid. The method comprises the following steps: crushing and grinding potassium-rich rocks to prepare raw ore powder, sintering, water leaching, silicon removing, sodium removing to obtain the potassium-rich mother liquor which takes potassium carbonate as a main component, mixing with a sodium nitrate solution obtained by extracting and concentrating nitratine ore powder through water to obtain raw material liquid, high temperature evaporating and crystallizing, forming a potassium-rich solution and a sodium carbonate filter cake, filtering and separating, recrystallizing the sodium carbonate filter cake, filtering deposition and drying to obtain an industrial superior sodium carbonate product, recrystallizing filtrate to raw material liquid for circular utilization. The potassium nitrate crystal is precipitated by cooling and crystallizing the potassium-rich solution, and is centrifuged and dried to an agricultural superior potassium nitrate product. The residual solution is cooled and crystallized to the raw material liquid for circular utilization.

The invention belongs to the field of inorganic nano materials and in particular relates to an adjustable morphology rare-earth ion codoped tungsten oxide nanoparticle and a synthesis method thereof.The rare-earth ion codoped tungsten oxide nanoparticle has a chemical formula of WO3:RE<3+>, and has a crystal phase of a monoclinic crystal phase. The specific synthesis process comprises the following steps: adding a rare-earth ion nitrate solution into a sodium tungstate aqueous solution, further dropwise adding concentrated hydrochloric acid, n-butyl alcohol and EDTA-2Na, performing sufficientstirring, performing hydrothermal treatment on the mixed solution, naturally cooling the solution, performing centrifugation, washing and drying so as to obtain a cubic WO3:RE<3+> nanoparticle, and performing high-temperature annealing on the nanoparticle, so as to obtain an ellipsoid-like WO3:RE<3+> nanoparticle. The WO3:RE<3+> nanoparticle which is synthesized by using a mixed solvothermal method, which is provided by the invention, has the advantages of being uniform in particle size, small in size, good in dispersibility, high in purity, and the like, has the potential of being used as aphotocatalyst to widen the spectrum response range of conventional tungsten oxide, and is capable of effectively improving the catalysis efficiency of a catalyst.

The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. Use medical stone, wollastonite, dolomite, calcite, sodium saltpeter and dolomite as the carrier, expand the pores with lithium hypochlorite and bis(acetylacetonate) beryllium, add surfactant tetradecyltributylammonium chloride The activation treatment is carried out under the action of ultrasonic waves, and then the carrier is mixed with the composite mineralizer borax and potassium sulfate in a hydrothermal reactor, and the precursors of the catalytic activity auxiliary agent scandium(III) isopropoxide, tri(4,4,4-trifluoro ‑1‑(2‑thiophene)‑1,3‑butanedione) europium, thulium(III) trifluoromethanesulfonate, lutetium carbonate hydrate, catalytic active center precursor titanocene ring-substituted salicylic acid complex, Zinc lactate, catechol ethylenediamine tungsten complex and iridium tetrachloride dihydrate are subjected to hydrothermal reaction under the action of emulsifier dimethyl hexadecylethyl ammonium ethyl sulfate, dried to remove moisture and then dried in horse Ignition in a Furnace to obtain a solid catalyst for ozone heterogeneous oxidation.

The invention relates to a counterflow circulation washing extraction method by using nitratine, comprising the following steps: (1) stacking nitratine ores with the lumpiness of smaller than 400mm in a dump leaching pool for soaking, and continuously stirring, wherein the soaking period is larger than or equal to 120h; (2) when the average content of NaNO3 in the soaking slag of ores is smaller than or equal to 0.6%, stopping soaking and stirring, discharging soaking solution, discharging the soaking slag in a spoil area after clear water is filtered and washed, then stacking the ores again and carrying out the next round of washing and stirring by using the soaking solution; (3) when the content of NaNO3 in leach liquor is larger than or equal to 12%, pumping in an evaporation pond for evaporation, and concentrating to precipitate sodium chloride crystal and sodium sulfate crystal; and (4) when the concentration of bittern is continuously improved till the content of NaNO3 is larger than or equal to 20%, concentrating the bittern into a half-finished product which is a mixed crystal of sodium nitrate, sodium sulfate, sodium chloride and darapskite. The method is high in leaching rate, low in cost, short in cycle and high in yield, and is capable of efficiently utilizing resources and reducing the waste of resources.

The invention discloses a special iodine-enriched fertilizer for paddy rice. The fertilizer is prepared from the following raw materials: animal dung, laver, laminaria japonica, mussel, sea shrimp shell, shell, nitratine, airpotato yam rhizome, Enteromorpha clathrata (Roth) Greville, an organic raw material, a composite trace element, animal amino acid, composite microbial strains, etc. The invention also discloses a preparation method of the fertilizer, comprising steps of crushing, fermentation, drying and pelletizing, etc. The nuisance-free fertilizer is prepared by fermentation of multiple iodine-enriched natural polymer organic matter. The fertilizer is absorbed by paddy rice, then converted and finally eaten by human, thus achieving the purpose of supplementing iodine. By the addition of straw, soybean meal, etc., contents of mineral and organic matter in soil are increased, soil permeability is enhanced, water retention is improved, soil fertility is boosted, negative effect of poor soil quality caused by long-time application of lots of inorganic fertilizers is prevented, soil disease can be effectively controlled, rice root development can be promoted, yield of rice is increased, and rice quality is enhanced.

The invention relates to a preparation method for a solid catalyst for ozone heterogeneous oxidization and belongs to the technical field of an environment-friendly and chemical catalyst. The preparation method comprises the following steps: by taking activated carbon, carnallite, dolomite, calcite, nitratine and dolomite as carriers, modifying the carriers by broaching with lithium hypochlorite and bis(acetylacetone) beryllium, and then adding a surfactant, beta-ethoxy dimethyl dodecyl ammonium sulfate, and performing surface activating treatment under the effect of ultrasonic wave; performing hydrothermal reaction on the carriers, compound mineralizers including borax and potassium sulphate, catalytic activated assistant precursors including tricyclopentadiene promethium, tri(2,2,6,6-tetramethyl-3,5-heptanedionato) gadolinium, tri(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octene diketone) dysprosium (III) and thulium trifluoromethane sulfonate (III), and catalytic active core component precursors including cobalt gluconate, zinc lactate, L-aspartic acid molybdenum complex and terpyridyl ruthenium chloride hexahydrate in a hydrothermal reaction kettle under the effect of octadecyl dimethyl hydroxypropyl ammonium chloride used as an emulsifier; drying and dewatering the reaction product; burning in a muffle furnace under a certain temperature, thereby acquiring the solid catalyst for ozone heterogeneous oxidization.

The invention relates to a preparation method of an ozone heterogeneous oxidized solid catalyst, and belongs to the technical field of environmental protection and chemical catalyst. The preparation method comprises the following steps: taking perlite, albite, nitratine, dolomite, coal ash and coal gangue as carriers, performing lithium hypochlorite and bis(acetylacetonato) beryllium reaming, adding a surfactant N-decyl dimethyl-N'-trimethyl-2-hydroxypropyl ammonium dichloride to perform activating treatment under an ultrasonic effect; and then enabling the active carriers to perform hydrothermal reaction with the compound mineralizing agent borax and potassium sulfate, catalytic active promoter precursors tri(cyclopentadienyl) promethium, tris(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono)europium (III), holmium oxalate decahydrate, lutetium carbonate hydrate, catalytic active center precursors cobalt gluconate, cupric glutamate, terpyridyl ruthenium chloride hexahydrate, dipotassium hexachloroosmium under the emulsifier N-oleyl-N'N'-diethyl ethylenediamine dihydrochloride, drying to remove the moisture, firing in a muffle furnace to obtain the ozone heterogeneous oxidized solid catalyst.

The invention relates to the technical field of a nitratine mineral powder marinating system, which is a continuous marinating system for powdery nitratine. The system comprises a feeding bin, a material conveying belt, a stirring tank, a first wheel bucket type sand washer, a second wheel bucket type sand washer, a dewatering screen and a material slag conveying belt which are sequentially arranged from front to back, wherein the stirring tank is communicated with the first wheel bucket type sand washer through a chute, and a first cyclone and a second cyclone are respectively arranged at thefirst wheel bucket type sand washer and the second wheel bucket type sand washer. According to the invention, by arranging a first wheel bucket type sand washer, and a mortar pump and a first cyclonewhich correspond to the first wheel bucket type sand washer, sodium nitrate can be extracted for the first time, by arranging a second wheel bucket type sand washer and a mortar pump and a second cyclone which correspond to the second wheel bucket type sand washer, sodium nitrate can be extracted for the second time, and finally a mortar pump is used for sucking and conveying sieved liquid generated by a dehydration sieve to extract sodium nitrate for the third time, so that the sodium nitrate component in nitratine mineral powder is fully utilized.

The invention belongs to the technical field of environment protection and chemical catalysts and relates to an ozone heterogeneous oxidation solid catalyst preparation method. The preparation method includes: taking porous mineral materials including attapulgite, diopside, bentonite, polyhalite, nitratine and dolomite as carriers; subjecting the carriers to lithium hypochlorite and bis(acetylacetone)beryllium broaching modification; adding surfactant trioctylmethyl ammonium chloride for activation under the action of ultrasonic waves; subjecting the carriers to hydrothermal reaction, with a complex mineralizer composed of borax and potassium sulfate, catalytic activity auxiliary agent precursors including tri(3-trifluoroacetyl-D-camphor)praseodymium (III), 1,1,1-neodymium trifluoroacetylacetonate, tris[N,N-bis(trimethylsilane)amine]erbium and lutetium carbonate hydrate and catalytic activity central precursors including ferrous fumarate, nickel citrate, zinc lactate and tetraammine dichloropalladium, in a hydrothermal reactor under the action of N-dimethyldodecyl-N'-dodecyl-dimethyl-2-hydroxypropyl ammonium chloride serving as an emulsifying agent; drying to remove moisture, and firing in a muffle furnace at a certain temperature to obtain an ozone heterogeneous oxidation solid catalyst.

The invention relates to a method for preparing an ozone heterogeneous oxidized solid catalyst, which belongs to the technical fields of environmental protection and a chemical catalyst. The preparation method comprises the following steps: diatom pure, kyanite, hydrotalcite, alum stone, nitratine and dolostone are taken as carriers, the carriers are subjected to hole-reaming modification through lithium hypochlorite and dis(acetylacetone)beryllium, a surfactant dodecyl dimethyl hydroxyethyl ammonium chloride is added, surface activation treatment is carried out under supersonic wave effect, then the carriers after ultrasonic surface activation are subjected to a hydro-thermal reaction with a composite mineralizer borax and potassium sulfate, a catalytic activity auxiliary agent predecessor tri(hexafluoroacetylacetone)yttrium (III)dehydrate, tricyclopentadiene promethium, tri(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octylene dione)dysprosium (III), tri(trifluoromethanesulfonimide)ytterbium, a catalytic activity central composite predecessor common transition metallorganic compound pyruvate iso-nicotinoylhydrazone vanadium, cobalt gluconate and hexanitro rhodium trisodium, dipotassium hexachloroosmium in a hydro-thermal reaction vessel under effect of an emulsifier dioctadecalkyl ammonium bromide, the reaction products are dried to remove the moisture, in a muffle furnace, and the product is calcinated to obtain the ozone heterogeneous oxidized solid catalyst.

The invention relates to a preparation method of an ozone heterogeneous oxidation solid catalyst and belongs to the technical field of environmental-friendly and chemical engineering catalysts. The preparation method comprises the following steps: by taking erionite, garnet, diatom pure, kyanite, nitratine and dolomite as a carrier, after chambering and modifying the carrier through lithium hypochlorite and di(acetylacetone) beryllium, adding a surfactant dodecyl trimethyl ammonium chloride for surface activating treatment under the action of ultrasonic waves; then performing a reaction on the ultrasonic surface activated carrier in a hydrothermal reaction kettle and a compound mineralizer borax and potassium sulfate and catalytic active auxiliary agent precursors isoproscandium oxide (III), a tri(hexafluoroacetyl acetone) yttrium (III) dihydrate, 1,1,1-trifluoroacetyl acetone neodymium and tri[N,N-bis(trimethyl silyl)amide erbium; and performing a hydrothermal reaction with catalytic active central compound precursors a titanocene ring substituted salicylic acid complex, vanadium isonicotinoyl hydrazone pyruvate, zinc lactate and iridic tetrachloride dihydrate under the action of an emulsifier (2-(methacryloyloxy)ethyl) trimethyl ammonium chloride, drying a reaction product to remove water, and firing the reaction product in a muffle furnace to obtain the ozone heterogeneous oxidation solid catalyst.

The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. The preparation method is to use diatomite, kyanite, sodium saltpeter, dolomite, amazonite and lithium limestone porous materials as carriers, and after the carrier is modified by lithium hypochlorite and bis(acetylacetonate) beryllium to expand the pores, add the surface The active agent dodecyl dimethyl hydroxyethyl ammonium chloride is subjected to surface activation treatment under the action of ultrasonic waves, and then the ultrasonic surface activation carrier is mixed with the composite mineralizer borax and potassium sulfate in a hydrothermal reaction kettle, and the precursor of the catalytic activity auxiliary agent tris(hexafluoroacetylacetonate)yttrium(III) dihydrate, samarium acetylacetonate, tris(4,4,4‑trifluoro‑1‑(2‑thiophene)‑1,3‑butanedione) europium, deca Holmium water oxalate rare earth metal organic compound, catalytic active center component precursor common transition metal organic compound pyruvate isonicotinoyl hydrazone vanadium, nickel citrate, copper glutamate and noble metal compound tetrachloro iridium dihydrate, in emulsifier N‑ Under the action of dodecyldimethyl-N'-trimethyl-2-hydroxypropyl diammonium chloride, the hydrothermal reaction is carried out. After the reaction product is dried to remove moisture, it is burned in a muffle furnace at a certain temperature A solid catalyst for ozone heterogeneous oxidation is obtained.

The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. Use medical stone, wollastonite, montmorillonite, potassium halite, sodium saltpeter and dolomite as the carrier, and after the carrier is expanded by lithium hypochlorite and bis(acetylacetonate) beryllium, add octadecyl trimethyl chloride After the ammonium is activated under the action of ultrasonic waves, the activated carrier is mixed with the composite mineralizer borax and potassium sulfate in a hydrothermal reactor, and the precursors of the catalytic activity auxiliary agent scandium (III) isopropoxide, three (6,6,7 ,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octenedione) dysprosium(III), tris[N,N-bis(trimethylsilyl)amine]erbium , Thulium(III) trifluoromethanesulfonate, catalytic active center component precursor titanocene ring-substituted salicylic acid complex, L-aspartic acid molybdenum, catechol ethylenediamine tungsten complex, dichlorotetra Amine palladium, under the action of dieicosyldimethylammonium chloride, undergoes hydrothermal reaction, dries to remove water, and burns in a muffle furnace to obtain a solid catalyst for ozone heterogeneous oxidation.

The invention relates to a preparation method of an ozone heterogeneous oxidation solid catalyst and belongs to the technical field of environment protection and chemical engineering catalysts. The preparation method includes using perlite, albite, bentonite, polyhalite, nitratine and dolomite as carriers; subjecting the carriers to pore expanding through lithium hypochlorite and bis(acetylacetone)beryllium, and adding a surfactant 2, 6-di(diethylamino methyl)-4-nonyl phenol-chlorobenzene quaternary ammonium salt, activating under ultrasonic action; enabling the activated carriers to be in hydrothermal reaction with composite mineralizing agent borax and potassium sulfate, catalytic active auxiliary precursor 1, 1, 1-trifluoroacetylacetone neodymium, holmium oxalate decahydrate, tri[N, N-bis(trimethylsilane)amine]erbium, andtrifluoromethane thulium sulfonate (III) and catalytic activity central precursor cobalt gluconate, nickel citrate, potassium tetrachloroaurate and hexanitroso rhodium trisodium in a hydrothermal reaction kettle under action of an emulsifier diethyl maleate bis(chlorinated dodecyl dimethyl ammonium); drying for removing water; firing in a muffle furnace to obtain the ozone heterogeneous oxidation solid catalyst.

The invention relates to a preparation method of an ozone heterogeneous oxidation solid catalyst, and belongs to the technical field of environmental protection and chemical catalysts. The preparation method includes the steps: taking gamma-aluminum oxide, barite, nitratine, dolomite, amazonite and kunzite as carriers; chambering the carriers by lithium hypochlorite and bis(acetylacetonato) beryllium; adding dimethyl double octadecyl ammonium serving as a surface active agent for activation treatment under the action of ultrasonic waves; performing hydrothermal reaction on the carriers with compound mineralizing agents including borax and potassium sulfate, catalytic active auxiliary precursors including tetra(2,2,6,6-tetramethyl-3,5-hydrochelidonic acid) cerium (IV), tri(4,4,4-trifluoro-1-(2-thiophene)-1,3-butanedione) europium, terbium acetate hydrate and tri(fluoroform sulfimide) ytterbium and catalytic active central precursors including copper amino acid chelate, zirconium ammonium carbonate, trisodium hexanitrorhodate and iridium dihydrate tetrachloride in a hydrothermal reactor under the action of trimethylamine stearate ammonium chloride glycolate serving as an emulsifier; drying a reaction product, removing water and firing the reaction product in a muffle furnace to obtain the ozone heterogeneous oxidation solid catalyst.