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198results about How to "Increase dissociation" patented technology

Non-aqueous electrolyte for lithium iron phosphate battery

The invention discloses a non-aqueous electrolyte for a lithium iron phosphate battery. The non-aqueous electrolyte comprises 70 to 85 weight percent of carbonic ester compound, 3 to 20 weight percent of various function additives and 11 to 17 weight percent of lithium hexafluorophosphate, wherein the carbonic ester compound is one of ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate and diethyl carbonate or a mixture of more of the ethylene carbonate, the propylene carbonate, the butylene carbonate, the dimethyl carbonate and the diethyl carbonate; and the additives comprise one of 0.5 to 10 percent of film-forming additive, 0.5 to 10 percent of high-temperature additive, 0.5 to 10 percent of low-temperature additive, 0.5 to 10 percent of overcharge-preventing additive and 0.001 to 2 percent of stability additive, and a mixture of more of the additives. The non-aqueous electrolyte for the lithium iron phosphate battery has the advantages that the solubility and dissociation of the lithium hexafluorophosphate are improved, and electric conductivity is improved; the low temperature resistance of a solid electrolyte interphase (SEI) is reduced; the overall stability of the battery is improved, the overall service life of the battery is prolonged, the compatibility of an electrolyte and a cathode is improved, circulation of the battery is improved, and the service life is prolonged; and the non-aqueous electrolyte can have high performance at high temperature.
Owner:广东金光高科股份有限公司

Gravity separation middling coal separation technology

InactiveCN104437831AReduce over-crushingImprove equipment sorting efficiencyGrain treatmentsWet separationGravity separationEngineering
The invention belongs to a coal washing method and discloses a gravity separation middling coal separation technology. Gravity separation middling coal is fed into rough grinding equipment. Products obtained after rough grinding is fed into screening equipment for primary classifying, and primary plus-sieve products and primary minus-sieve products are obtained. The primary plus-sieve products are fed into a dense medium cyclone for separation. The primary minus-sieve products are fed into separation equipment for secondary classification, and secondary plus-sieve products and secondary minus-sieve products are obtained. The secondary plus-sieve products are fed into fine grinding equipment for fine grinding. Products obtained after fine grinding and the secondary minus-sieve products are fed into size mixing equipment together for completing flotation. Two-time ore grinding, gravity separation and floatation combination and classifying separation are combined to separate gravity separation middling coal, under the premise that the middling coal dissociation degree is improved, the phenomena of over crushing are reduced, equipment separation efficiency is obviously improved, clean coal in the middling coal is recycled to the maximum degree, the coal preparation plant clean coal productivity is increased, and enterprise economical benefit is improved.
Owner:CHINA UNIV OF MINING & TECH

Beneficiation process for increasing recovery rate of gold of refractory gold ores

The invention relates to a beneficiation process for increasing the recovery rate of gold of refractory gold ores. According to the process, a reselection-floatation-reselection combined procedure is adopted to increase the recovery rate of the gold, and in other words, ores are ground till the particle size is -0.074 mm(60-80)%; a hydraulic power classifier is firstly utilized for classification, coarse gold concentrate is obtained from classified setting sand through a reselection method, and reselected tailings return to a ball mill to be ground gain; and classified overflow adopts a total-sulfur flotation method to recycle the gold, mustard gold concentrate is obtained, flotation tailings are reselected through a Nilson centrifugal ore separator, and obtained reselected concentrate returns to the ball mill to be ground gain. Early recovery and much recovery of the gold can be achieved through the process, gold which cannot be recycled because the particle size is too large or too small in total-sulfur flotation is effectively recycled, the purpose of selective ore grinding is achieved through reselection-ball mill closed cycle, the dissociation degree of the ores can be improved easily, the grade of the gold concentrate is remarkably improved, the metal recovery rate is remarkably increased, and good economic benefits can be brought to enterprises.
Owner:有研资源环境技术研究院(北京)有限公司

Improved integrated process for hydrogenation and catalytic cracking of hydrocarbon oil

Disclosed is a combination process for improved hydrotreating and catalytic cracking of hydrocarbon oils, including: contacting residual oil, catalytic cracking cycle oil, and optional distillate oil with a hydrotreating catalyst under hydrotreating conditions in the presence of hydrogen followed by separation of the reaction products to obtain gas, hydrogenated naphtha, hydrogenated diesel oil, and hydrogenated tail oil; contacting the hydrogenated tail oil and optional normal catalytic cracking feedstock oil with a cracking catalyst under catalytic cracking conditions followed by separation of the reaction products to obtain dry gas, hydrogenated naphtha, liquefied petroleum gas, catalytic cracked gasoline, catalytic cracked diesel oil, and catalytic cracking cycle oil; wherein the hydrogenated tail oil and / or normal catalytic cracking feedstock oil are separated into at least two fractions, the light and the heavy fractions or normal catalytic cracking heavy feedstock oil and normal catalytic cracking light feedstock oil, prior to contacting the hydrogenated tail oil and / or normal catalytic cracking feedstock oil with the cracking catalyst. The process according to the present invention is especially suitable for conversion of hydrocarbon oils to produce more products of gasoline or diesel oil.
Owner:CHINA PETROCHEMICAL CORP +1

Boron-containing gel polymer electrolyte and preparation method and application thereof

The invention belongs to the technical field of polymer electrolytes, and particularly relates to a boron-containing gel polymer electrolyte and a preparation method and application thereof. The gel polymer electrolyte is prepared from lithium salt, an organic solvent, a photoinitiator, boron-containing heterocyclic photosensitive monomers and acrylate monomers in a copolymerization mode. The preparation method of the gel polymer electrolyte includes the steps that a compound containing boric acid groups and an alkene compound with a diol structure are esterified to obtain boron-containing heterocyclic alkene monomers, and the boron-containing heterocyclic alkene monomers, the acrylate monomers, the photoinitiator, the lithium salt and the organic solvent are uniformly dispersed; a mould containing the mixed solution is irradiated by an LED lamp for surface photo-initiated polymerization, and the boron-containing gel polymer electrolyte is obtained. The boron-containing gel polymer electrolyte has high ionic conductivity and a high cationic transference number, effectively solves the problems of liquid leakage, corrosion, poor mechanical performance and the like of a liquid electrolyte in traditional lithium-ion batteries and can be applied to preparation of supercapacitors, lithium-ion batteries, hybrid supercapacitors and the like.
Owner:FUDAN UNIV

Microwave processing device for dump leaching uranium ores

The invention discloses a microwave processing device for the dump leaching uranium ores. The device uses microwave to carry out irradiation to dump leaching uranium ores, due to the fact that differences exist among the microwave temperature rising effects of different minerals inside the uranium ore particles, heat stress differences are generated among the different minerals inside the uranium ore particles, the grain boundaries of the different minerals inside uranium ore particles break and the cracks inside the particles extend, therefore the poriness of the uranium ore particles is increased, the permeability of the inner portions of the uranium ore particles is improved, the dissociation degree of the uranium ores is improved, the leaching efficiency of the dump leaching of the uranium ores is improved, and a leaching period is shortened. The whole equipment comprises 16 microwave units, a material conveying system, a support, a temperature detecting and controlling system and a microwave suppressor. When the microwave processing device for the dump leaching uranium ores is used to process the dump leaching uranium ores, the microwave processing device has the advantages of being good in the matching of microwave power and the uranium ores, low in processing energy consumption, large in processing quantity, stable in material conveying, and small in microwave leakage, the poriness of the uranium ores and the dissociation degree of the uranium ores are further improved, the leaching efficiency is further improved, and the leaching period is further shortened and the like. The microwave processing device for the dump leaching uranium ores is also suitable for the processing of dump leaching gold ores, dump leaching copper ores and other dump leaching ores, and has obvious effect in increasing poriness of ore particles, improving the permeability of the inner portion of the ore particles, improving the dissociation degree of useful ores, improving leaching efficiency, and shortening leaching efficiency.
Owner:NANHUA UNIV

Technological method for improving quality of vanadium-titanium iron concentrates

The invention relates to a technological method for improving the quality of vanadium-titanium iron concentrates. Various techniques are integrated. The technological method includes preliminary classification, fine screening classification, three-section ore grinding, concentration magnetic separation and stair magnetic separation. In preliminary classification, a qualified fraction part good indissociation in rough iron concentrates can be effectively classified out, the treatment capability of a mill is improved, and energy consumption of the product is lowered. In fine screening classification, a fine screening closed loop is adopted for cyclic ore grinding, compared with common rotational flow classification, classification is conducted strictly according to the particle size, meanwhile, the classification efficiency reaches up to 70% or higher, the qualified fraction is better classified out in time, excessive grinding is reduced, and cyclic loads are reduced. In concentration magnetic separation, concentration magnetic section is adopted before ore grinding, part of weak magnetic titanium ore and gangue can be removed out, excessive grinding of the titanium ore is reduced,and the titanium iron ore recycling rate is increased; and meanwhile, the ground ore grade is improved, the yield is increased, and the product cost is reduced. In stair magnetic separation, iron andtitanium separation is well achieved, and the iron concentrate grade is improved step by step.
Owner:SICHUAN LOMON MINING & METALLURGY

Improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil

The invention discloses an improved hydrotreatment and catalytic cracking combination method for hydrocarbon oil, which comprises the following steps that: under reaction conditions of the presence of hydrogen and the hydrotreatment, the contact reaction of residual oil, catalytic cracking cycle oil, optional distillate oil and a hydrotreating catalyst is performed, and gas, hydrogenerated naphtha, hydrogenerated diesel oil and hydrogenerated tail oil are obtained after a reaction product is separated; under catalytic cracking reaction conditions, the contact reaction of the optional conventional catalytic cracking raw oil, the hydrogenerated tail oil and a catalytic cracking catalyst is performed, and dry gas, liquefied gas, catalytic cracking gasoline, catalytic cracking diesel oil and catalytic cracking cycle oil are obtained after a reaction product is separated; and the conventional catalytic cracking raw oil is light or heavy distillate oil, and the contact reaction with the catalytic cracking catalyst is that the heavy raw oil and light raw oil are optionally and orderly performed along with the hydrogenerated tail oil in a reactor comprising at least two reaction regions (I and II) along the flowing direction of reaction materials respectively. The method is suitable for hydrocarbon oil conversion to produce more gasoline and diesel oil.
Owner:CHINA PETROLEUM & CHEM CORP +1

Online detection equipment for ore granularity based on a map image algorithm analysis technology

The invention discloses an online ore granularity detection device based on a map image algorithm analysis technology. The online ore granularity detection device is characterized by comprising an oregranularity analyzer and an industrial personal computer, The ore particle size analyzer is connected with the industrial personal computer through a special local area network; The industrial personal computer is connected into the Internet, and a plurality of clients are further connected into the local area network. The ore particle size analyzer is mounted above the ore conveying belt and isused for photographing ores on the conveying belt and continuously collecting ore particle size images on the conveying belt in real time; An ore particle size analysis system is installed in the industrial personal computer and comprises an image preprocessing module, an image segmentation module and an ore particle size calibration and analysis module. According to the method, conveyor belt oreimages are collected online, multi-stage image algorithm processing is carried out, the ore granularity is continuously analyzed online in a high-precision and real-time mode, analysis results are automatically counted and output, the ore dissociation degree is improved in cooperation with optimization of the ore dressing technological process, and the production efficiency is improved.
Owner:威海晶合数字矿山技术有限公司
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