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142results about How to "Achieve dissolution" patented technology

Technique for processing coking wastewater or organic wastewater by supercritical water oxidization technique

The invention relates to a process by adopting supercritical water oxidation technology to treat coking wastewater or organic wastewater. The invention is that: coking wastewater or organic wastewater is pretreated to obtain wastewater without solid granules; the wastewater is heated to 380-450 DEG C with a first interchanger and/or a supercritical boiler, and then enters demineralizing equipment to remove the salt in the wastewater by taking advantage of the property that supercritical inorganic matter is indissoluble; the wastewater after desalting is put in a reaction kettle to generate autothermal reaction with an heated and pressurized oxidant to obtain high-temperature gas-liquid mixture with higher temperature; the high-temperature gas-liquid mixture enters the first interchanger and acts as thermal medium to exchange heat with new coming coking wastewater or organic wastewater and then goes through a secondary interchanger to enter a cooler and is cooled to normal temperature, after pressure thereof is adjusted by a pressure regulation device, the high-temperature gas-liquid mixture enters a gas-liquid separator for separation, and then the air is discharged, while the liquid, namely the treated water is recycled. The organic contamination and oxidant are all dissolved in the wastewater; oxidation reaction is generated in homogeneous phase, in short reaction time, oxygenolysis of organic contamination is carried out quickly.
Owner:北京能泰高科环保技术有限公司

Fused salt heat treatment method for rubbish incineration fly ash

The invention discloses a fused salt heat treatment method for rubbish incineration fly ash, and belongs to ash treatment methods. The method solves the problems that the treatment temperature is high, the energy consumption is large and poisonous trace elements cause secondary pollution through existing treatment methods for the rubbish incineration fly ash. The method includes the steps of preparing mixed fused salt, carrying out fusing heat treatment, detecting the content of heavy metal and extracting and recovering the heavy metal. According to the method, chlorides, sulfate and partial heavy metal in the fly ash can be dissolved out through the fusing, heat storing and reacting characteristics of the fused salt, processes are relatively simple, reaction conditions are mild and easy to control, leaching of the heavy metal in the fly ash can be effectively controlled in an environment, the treated fused salt can be recycled, deep enrichment and recovery of the dissolved heavy metal can be carried out, the harm level of treated residues is greatly lowered, building material utilization and secure landfill of the treated residues can be conveniently carried out, secondary pollution is effectively reduced, the resource utilization efficiency is improved, and light reduction, harmlessness and resource utilization of the rubbish incineration fly ash can be realized synchronously.
Owner:HUAZHONG UNIV OF SCI & TECH

Flow-rate-adjustable electrolytic tank reaction device for electrically reducing carbon dioxide

The invention discloses a flow-rate-adjustable electrolytic tank reaction device for electrically reducing carbon dioxide. The electrolytic tank reaction device comprises two end plates (1), an aeration liquid storage chamber (2), an anode chamber (3) and a cathode chamber (4), wherein the cathode chamber (4) is provided with an S-shaped flow channel; an ion exchange membrane (15) is spaced between the anode chamber (3) and the cathode chamber (4); two electrodes are located at two sides of the cathode chamber (4) respectively; a feeding and discharging opening is formed in the side of the cathode chamber (4); a solution is fed from the bottom and is discharged from the top; circulation of the solution in the cathode chamber is realized by a peristaltic pump (16); an aeration head is arranged at the bottom of the aeration liquid storage chamber (2); meanwhile, the circulation of a cathode solution is completed at the top of the aeration liquid storage chamber while products can be collected. The device is simple in structure and stable in performance, and is capable of carrying out real-time sampling analysis on gaseous products and liquid products, stably realizing circulation of the cathode solution and accurately controlling the flow rate of the liquid flowing through the surface of a catalyst so as to improve the selectivity of reduced products obtained by electrically reducing carbon dioxide.
Owner:山东金奥环保科技有限公司

Two-step organic waste treatment system and method based on supercritical/subcritical water technology

The invention discloses a two-step organic waste treatment system and method based on supercritical/subcritical water technology. The two-step organic waste treatment system comprises a subcritical hydrolysis reactor, a supercritical water gasification reactor, a material conveying apparatus communicated with the bottom of the subcritical water gasification reactor, an oxidizing agent apparatus, a residue discharging apparatus, a material heat exchanger, a backheating apparatus and a product collection apparatus. Organic waste is hydrolyzed into micromolecular products through a subcritical hydrolysis reaction, so requirements on subsequent gasification reaction conditions are lowered, and harmless treatment of organic waste is realized; organic waste is completely converted into clean energy like H2 by supercritical water gasification, so the goal for sustainable efficient recycling of organic waste is achieved; an oxidizing agent is added in the reaction process of supercritical water, so an in-situ heat source is provided for gasification, a gasification rate is increased and energy consumption is reduced; and through directional adjustment and control of technological parameters of subcritical hydrolysis and supercritical water gasification, cooperative effect of the two-step method can be realized, and the gasification conversion rate of organic waste is greatly improved.
Owner:HUNAN UNIV

Method applied to acid-base combined extraction of aluminum, potassium and sodium from water-insoluble potassium ore

The invention discloses a method applied to acid-base combined extraction of aluminum, potassium and sodium from water-insoluble potassium ore resource such as nepheline, potassium feldspar and the like. The method comprises the following steps: uniformly mixing finely-ground water-insoluble potassium ore with a proper amount of concentrated sulfuric acid, curing, and carrying out rapid high-temperature reduction roasting desulfurization at a certain temperature by a reducing agent, wherein the sulfur-containing flue gas is used for acid preparation to achieve regeneration and cyclic utilization of sulfuric acid; extracting potassium and sodium by water from the reduced calcine, and preparing aluminum oxide by alkaline leaching. By virtue of the method, the decomposition of aluminosilicate-containing material phase in the water-insoluble potassium ore resource such as nepheline, potassium feldspar and the like is enhanced by high-temperature reaction of concentrated sulfuric acid; the cyclic utilization of sulfuric acid is realized. The method can be used for comprehensively recycling aluminum, potassium and sodium resources; the recycling rate of aluminum oxide is high; the energy consumption is low; the corrosion to equipment is small; the large-scale industrialization is easy to implement.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY

Dissolving device for production of new chemical engineering materials

The invention discloses a dissolving device for the production of new chemical engineering materials. The device comprises a supporting arm, a base, a dissolving tank mounting seat, a dissolving tankand a stirring assembly, a working motor is fixedly mounted at the left side of the supporting arm, the lower part of the supporting arm is fixedly connected to the base through a bolt, the dissolvingtank mounting seat is fixedly mounted at the left side of the upper surface of the base, the dissolving box mounting seat is rotatably connected with the dissolving box, the upper edge of the dissolving tank is in clamping connection with a cover plate, a feed inlet is arranged at the left side of the upper surface of the cover plate, the feed inlet is communicated with the inner chamber of the dissolution tank, and the stirring assembly is mounted in the dissolving tank, and a second filter screen is arranged above the stirring assembly. The device has the advantages of fast dissolving speedand sufficiency in discretion, so the device can dissolve a raw material within a short time, can avoid wastes during filtration of the raw material, and also can avoid the accumulation of the raw material at the bottom of the dissolving tank.
Owner:山东省博兴县贝兄科技有限公司

Preparation method of hard alloy with orientational distribution of featured crystal surfaces of WC crystal grains

The invention discloses a preparation method of hard alloy with orientational distribution of featured crystal surfaces of WC crystal grains and belongs to the technical field of hard-alloy metallurgy. The preparation method comprises the following steps of: by adopting a mixture of tungsten oxide, cobalt oxide and carbon material as a raw material, carrying out mixed ball grinding; carrying out cold pressing on ball-ground mixed powder to form a blank, and putting the blank in a vacuum reaction furnace to carry out in-situ reduction and carbonization reaction to obtain WC-Co composite powder containing carbon-deficient phase components under lower temperature; and finally, putting the prepared composite powder in a sintering system which can apply sintering pressure to carry out in-situ reaction sintering densification on the powder to obtain the hard-alloy block material with orientational distribution of the featured crystal surfaces of the WC crystal grains. The preparation method has the advantages of simple process step, short preparation period and low sintering temperature and the like in the aspects of preparing the composite powder and sintering the hard-alloy block material; and the hard-alloy block prepared by sintering has controllable size of the WC crystal grains, obvious anisotropy of structures and mechanical properties and strong repeatability.
Owner:BEIJING UNIV OF TECH

Crystallization method integrating anti-solvent crystallization, vacuum evaporation and cooling or anti-solvent crystallization

The invention provides a crystallization method integrating anti-solvent crystallization, vacuum evaporation and cooling or anti-solvent crystallization. The method comprises the following steps: (1) preliminary anti-solvent crystallization: placing a to-be-crystallized amino acid material into a crystallizer, adding solvent water and allowing the material to be fully dissolved, carrying out heating to 30 to 80 DEG C, adding an anti-solvent into the crystallizer, carrying out full stirring, and allowing a part of the solute in the solution to be crystallized and separated out so as to obtain a to-be-crystallized material; (2) vacuum evaporation and cooling or anti-solvent crystallization: continuing stirring, subjecting an obtained solid-liquid system to evaporation under an absolute pressure of 20 to 60 kPa, cooling the obtained solid-liquid system or adding the same anti-solvent as in the step 1 so as to promote crystals to continue to grow, and repeating the step 2 for 1 to 3 times; and (3), filtering and drying: carrying out filtering, washing and drying so as to prepare a crystallization product. The method provided by the invention has the advantages of convenient and fast operation, high yield and easy realization of industrial scale production, and can obtain the crystallization product with narrow particle-size distribution and a large particle size.
Owner:肇东星湖生物科技有限公司

Iron phosphate dihydrate and preparation method thereof, iron phosphate, lithium iron phosphate and lithium ion battery

The invention provides iron phosphate dehydrate and a preparation method thereof, iron phosphate, lithium iron phosphate and a lithium ion battery, and relates to the field of lithium batteries, the preparation method of iron phosphate dehydrate uses pyrite cinder to obtain a free iron source, high-purity iron hydroxide is obtained through acid leaching and pH adjustment, and then through introduction of a complexing agent, high-purity iron phosphate is obtained. The dissolution of ferric hydroxide is realized under a relatively low ferrophosphorus ratio, a clarified ferrophosphorus solution is obtained, and the cost is much lower than that of BOM in the prior art. The iron phosphate dihydrate is synthesized through a two-step method, the first step is to add an iron complexing agent, the second step is to dilute a ferrophosphorus solution, and the iron phosphate dihydrate is precipitated at high temperature. By adding the iron complexing agent, it is guaranteed that ferrophosphorus is not subjected to precipitation reaction under the high concentration, wrapping and entrainment of iron oxide red or ferric hydroxide are avoided through the two-step reaction of dissolving first and then precipitating, the purity of obtained iron phosphate dihydrate is higher, and the electrical performance of synthesized lithium iron phosphate is better.
Owner:云南航开科技有限公司

Edible mushroom nourishing powder product and production method thereof

The invention discloses an edible mushroom nourishing powder product including, by weight, 15-30 parts of a morchella enzymolyzed powder, 1-3 parts of an animal protein hydrolyzed powder, 15-20 parts of a lentinula edodes enzymolyzed powder, and 3-5 parts of pickled vegetable fermentation liquid drying-frozen powder. The morchella enzymolyzed powder is prepared through a following process: preparing the morchella through a fermentation method; adjusting a temperature to 40-60 DEG C; adding cellulase accounting for 0.5-2% by weight of a fermentation liquid of the morchella for carrying out an enzymolysis process; adding flavors protease accounting for 0.3-1% by weight of the fermentation liquid of the morchella for carrying out the enzymolysis process; adjusting the temperature to 90-110 DEG C and maintaining the temperature for 5-10 min; carrying out a centrifugal separation process to obtain a supernate; and drying the supernate to obtain the morchella enzymolyzed powder. The product is delicious in flavor, is rich in various nutritional functional components, is an edible mushroom deep processed product in which nutritional, nourishing and human body immunity adjusting functions are integrated, is convenient to eat and can be directly eaten or can be eaten after being dissolved in water.
Owner:NINGXIA JINBOLE FOOD TECH CO LTD

Safe and environment-friendly aromatic amine production system and process

The invention discloses a safe and environment-friendly aromatic amine production system, which comprises a nitrification system, a washing system, a hydrodesolvation system and a dehydration and deaniline system. The nitrification system comprises a microchannel nitrifier, an acid separator and a vacuum concentration system, and the washing system comprises a washing tower and a sewage treatmentsystem; the hydrodesolvation system comprises a hydrogenation system and a desolvation tower, and the dehydration and deaniline system comprises a dehydration tower, a deaniline tower and a rectification system. The production process comprises the following steps: (1) continuous nitrification; (2) continuous washing; (3) hydrodesolvation; (4) dehydration and deaniline. The safe and environment-friendly aromatic amine production system and process disclosed by the invention have the advantages of simple technological process, safe, environment-friendly and reliable operation, low energy consumption, low equipment investment, simple operation, reduction in amount of a nitrifying material, improvement on safety of the nitrification system, elimination of a pot type concentration system withserious environmental pollution, reduction in investment and operating cost, good washing effect, low sewage treatment capacity, and reduction in production cost.
Owner:HUAIAN LYUYUAN CHEM TECH CO LTD

Method for extracting vanadium by decarburization-crystal breaking roasting and reinforced acid leaching from vanadium-containing stone coal

The invention discloses a method for extracting vanadium by decarburization-crystal breaking roasting and reinforced acid leaching from vanadium-containing stone coal. The method comprises the following steps that (1) a vanadium-containing stone coal block body is crushed and ground to obtain stone coal mine powder; (2) hot flue gas is fed into a suspension roasting device, and the coal mine powder is conveyed into the suspension roasting device, is suspended under the action of the high-temperature air flow, and is discharged after heat storage roasting at the temperature of 700-900 DEG C; (3) the coal mine powder is conveyed to a decarburization roasting device, air is fed to suspend the heat-storage stone coal mine powder, decarbonizing roasting is carried out at the temperature of 500-800 DEG C, and a decarburized material is discharged; (4) a mixed gas of air and nitrogen is fed into a crystal breaking roasting device, the decarburized material is conveyed to the crystal breakingroasting device for suspension, an oxidation reaction is performed at the temperature of 750-900 DEG C, and a crystal-breaking roasting material is discharged; and (5) vanadium is extracted by acid leaching in a sulfuric acid solution. The method is simple in process flow, uniform in product property, large in equipment processing amount, efficient, energy-saving and environment-friendly, and large-scale production is easy to achieve.
Owner:NORTHEASTERN UNIV

Detection method for determining chloride ion content in sea sand

The invention relates to a detection method for determining the chloride ion content in sea sand. The method comprises the following steps: the sea sand dried to constant weight is added into boiled deionized water and fully stirred, stands and then is filtered to obtain washed sea sand and washing filtrate; the washed sea sand is ground into sea sand powder, and the sea sand powder is added intothe deionized water, fully stirred and filtered to obtain powder filtrate; half of the washing filtrate and half of the powder filtrate are measured, mixed and stirred to prepare mixed filtrate; the chloride ion contents of the washing filtrate, the powder filtrate and the mixed filtrate are determined with a silver nitrate titration method respectively, detection results are analyzed and corrected, and the chloride ion content in the sea sand is obtained. According to the method, the release of chloride ions from the tight wrapping films and cracks on the surface of the sea sand is promoted to a large extent, and the authenticity of the detection result of the chloride ion content in the sea sand is guaranteed scientifically. The chloride ions can be rapidly dissolved, the detection timeis greatly shortened, and the accuracy of the detection result of the chloride ion content is remarkably improved.
Owner:FUZHOU UNIV

Radix angelicae sinensis traditional Chinese medicine decoction pieces and preparation method thereof

The invention relates to the technical field of traditional Chinese medicine decoction pieces, in particular to radix angelicae sinensis traditional Chinese medicine decoction pieces and a preparationmethod thereof. The preparation method comprises the following steps of A, material selection and washing; B, infiltration; C, slicing and steaming; D, vacuum freeze drying and smashing; E, encapsulation; F, drying and tabletting. The preparation method is simple in process, the operation is easy to control, the production efficiency is high, and the cost is low; through encapsulation, active functional ingredients in radix angelicae sinensis are effectively protected, the water content is equal to or lower than 4.5%, the ligustilide content is 57.83%-58.64%, the ferulic acid content is 0.061-0.073%, the radix angelicae sinensis traditional Chinese medicine decoction pieces prepared by using the method are easy to dissolve and easy to digest and absorb, the dissolution rate is 97.25-98.88%, and bacteria are not easy to breed. The content of aflatoxin B1 is 1.6-2.3 microgram/kg, the shelf life is long, the quality is stable and the preparation method can be used for massive industrialproduction.
Owner:广东元德中药饮片有限公司

Integrated rapid detection reaction tube

Relating to the technical field of rapid detection of drugs, food and cosmetics, etc., the invention discloses an integrated rapid detection reaction tube, which comprises a sealing cover (1), a filter tube (2), a reaction tube (3) and a reaction reagent (4). The sealing cover (1) is disposed at the top of the reaction tube (3), the filter tube (2) is sleeved in the reaction tube (3), and a filter membrane is mounted at the bottom or circumference of the filter tube (2), or the filter tube (2) can be in the form of a hollow filter element. According to the characteristics of a sample dissolution reagent, the reaction tube (3), the filter tube (2) and the filter material are all made of acid-base or organic solvent resistant plastic or glass. The reaction reagent (4) is subpackaged into the reaction tube (3) in advance or freeze dried; or the reaction reagent (4) can be made into tablets or pills and then placed in the reaction tube (3). During practical use, the sample is placed in the filter tube (2), the dissolution reagent is added, then sealing, shaking, centrifugation and reaction are carried out, and the result can be observed directly. The integrated rapid detection reaction tube provided in the invention realizes integration of sample dissolution, filtration and reaction, and has the advantages of convenient use, high efficiency, strong practicability, and easy realization of standardization, thus being especially suitable for spot rapid detection of drugs, food and cosmetics.
Owner:沈佳特

Chelating augmented injection agent for water injection well and preparation method thereof

PendingCN111961456ARealize normal water injectionFacilitated ionizationDrilling compositionActive agentCarboxylic acid
The invention provides a chelating augmented injection agent for a water injection well and a preparation method of the chelating augmented injection agent. The chelating augmented injection agent isprepared from the following raw materials in percentage by mass: 26%-35% of an amino cartankylic acid chelating agent, 10%-14% of a penetrating agent, 12%-16% of an ampholytic surfactant, 14%-18% of anonionic surfactant, 18%-22% of a mutual solvent and the balance of water. The chelating augmented injection agent for the water injection well can be used for treating water injection wells with poor injection water quality, stratum scaling and high residual oil saturation and water injection wells with long-term produced water reinjection, resulting in high water injection pressure and seriousunder-injection of the water injection wells or long-term water injection under-injection wells. The crude oil stripped from the rock surface is dispersed into small oil drops under the action of thesurfactant, and the flowing capacity of the crude oil passing through the throat is improved, so that the reservoir permeability is improved, the stratum is dredged, the oil well liquid supply capacity is recovered, and normal water injection of a water well is realized.
Owner:PETROCHINA CO LTD
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