1919results about How to "Good economic value" patented technology

The invention discloses a method for recovering lithium from a waste lithium ion battery and a waste pole piece. The method comprises the following steps of: (1) crushing the waste lithium ion battery or the waste pole piece by using a crusher, placing the crushed material in a high-temperature furnace and removing an adhesive from the crushed material by thermal processing to obtain powder; (2) removing aluminum from the powder by dissolving the aluminum in sodium hydroxide solution and filtering the solution to obtain low-aluminum filter mud; (3) leaching the low-aluminum filter mud with acid and a reducing agent to obtain lixivium; (4) removing impurities such as iron, copper, aluminum and the like from the lixivium by a chemical method; (5) precipitating lithium in the lixivium with fluorine salt to obtain a lithium fluoride rough product; (6) washing the lithium fluoride rough product, filtering and drying to obtain a lithium fluoride product; and (7) returning filtrate obtained after the lithium fluoride rough product is washed to the step (3) for processing. By the method of the invention, the lithium fluoride product has purity of over 98.0 percent and the primary recoveryrate of lithium is between 75 and 92 percent; and the method of the invention has the advantages of simple process, low cost, easy industrial production and high economic benefit.

The invention relates to a deep coal resource mining method. When the buried depth of a coal bed is 800 to 3,000 meters, the thickness is more than 3 meters, an inclination angle is less than 10 degrees, and pressure is more than 10 Mpa, the most advanced well drilling and cementing, high-temperature resistant and high-pressure well completion technologies in oil industry, vertical shafts and vertical shafts and gas injection and gas production combined methods are adopted; the method is characterized by comprising the following steps of: drilling three vertical shafts first, wherein the distance between the wells is 500 meters; drilling a horizontal well which is more than 500 meters deep from a secondary well to a central well, combusting a long tunnel which is 1,000 meters long and 10 meters wide by a special combustion method, wherein the tunnel is a gasification tunnel special for gas production, observation, monitoring and the like, and drilling a plurality of overlong horizontal wells in the reverse direction according to the inclination gradient of the coal bed. The deep coal bed gas and the deep coal are gasified underground, and exploited in a combined way, so the problem of shortage in energy resources in China can be greatly improved, the method is a new environment-friendly, low-carbon, innovative new-energy development technology, and low in cost and has great economic value, and investment is reduced.

The invention provides a simple and high-efficiency method for recycling cobalt and lithium from a positive plate of a waste lithium ion battery, and relates to a method for recycling cobalt and lithium from the positive plate of the waste lithium ion battery. The method is characterized by comprising the following processes of ammonium sulfate roasting, in which the positive plate of the waste lithium battery is mixed with ammonium sulfate, and high-temperature roasting is performed to obtain reduction roasting slag; screening, in which the reduction roasting slag is vibrated and is screened by a vibration screening machine, and an aluminum foil is separated and removed to obtain reduction slag containing cobalt and lithium; acid leaching, in which the aluminum foil is separated and removed from the reduction roasting slag, is leached in sulfuric acid and is filtered to obtain a sulfate solution containing cobalt and lithium; impurity removal, in which pH of the solution is adjusted by sodium carbonate, and a precipitant is filtered and removed to obtain a lithium-cobalt sulfate mixture solution; cobalt deposition, in which sodium hydroxide is added into the lithium-cobalt sulfate mixture solution, the pH of the solution is controlled to be 7.5-9.5, and filtering is performed to obtain the precipitant, the precipitant is washed with deionized water at 85-95 DEG C, cobalt hydroxide is dried, cobalt hydroxide after being dried is placed in a reduction furnace, and H2 is introduced for reduction to obtain cobalt powder; and lithium deposition, in which pH of a lithium-containing solution is adjusted to 7-8, and an excessive amount of a lithium deposition agent is added to a lithium salt product.

The invention provides a heat-storage type biomass pyrolysis method and system which can realize large-scale production and has low operation cost and low total energy consumption. The heat-storage type biomass pyrolysis method comprises the following steps: (1) pretreating the biomass: pretreating the raw materials of a biomass to obtain the raw materials which can be used for the pyrolysis of the biomass; (2) subjecting the biomass to pyrolysis: spreading the pretreated raw materials of the biomass on the rotating bottom of a heat-storage type gas radiating tube rotating bed uniformly, making the raw materials of the biomass heated gradually in a sealed spaced along with the rotating of the rotating bottom of a heat-storage type gas radiating tube rotating bed, keeping the raw materials of the biomass at the reaction temperature of 200-800 DEG C for 30-120 minutes, subjecting the raw materials of the biomass to reaction to produce the gaseous substance and the solid biological carbon; and (3) collecting and posttreating the products of pyrolysis; collecting the gaseous substance generated in the step (2), condensing, and separating the pyrolysis gas and the condensible liquid. The pyrolysis gas can be totally or partially used as the fuel of a heat-storage type gas radiating tube, and the discharged solid biological carbon is collected after being quenched and cooled.

The invention relates to a vehicle intelligent predictive control system and a vehicle intelligent predictive control method. The system comprises at least one vehicle-mounted control system, a shared data base and an information collection system, wherein the information collection system is used for collecting road information in real time and uploading the collected road information to the shared data base; the vehicle-mounted control system is used for laying a vehicle traveling plan, analyzing energy consumption data, calculating a road coefficient, controlling an energy use strategy, controlling traveling of a vehicle, uploading the traveling plan and the road coefficient to the shared data base, and forecasting driving energy according to traveling conditions of the vehicle; the shared data base stores data uploaded by the information collection system and the vehicle-mounted control system, and forecasts road traffic conditions according to the vehicle traveling plan and trafficability of passed road segments, or forecasts the road traffic conditions according to real-time traffic conditions and historical traffic conditions of the road segments The vehicle intelligent predictive control system and method can help a driver forecasting the traffic conditions and calculating energy required by traveling more accurately, so that economical efficiency and environmental conservation of the vehicle are greatly improved.

The invention belongs to the technical field of three-dimensional detection of subway tunnels, and discloses a vehicle-mounted measurement device of three-dimensional deformation monitoring of subwaytunnels based on reference transmission. A rotatable laser distance measurement system for high-speed distance measurement and angle measurement is integrated by a laser range finder, an inclination angle sensor, a high-precision turn table and a PLC controller together; a tunnel section outline is measured in a discrete multi-point mode; meanwhile, in combination with a photoelectric encoder installed on a distance measurement wheel at the bottom of a tunnel detection vehicle, a fixed displacement amount of the detection vehicle between a starting position and a travelling position on an axial direction of the tunnel is obtained, a program is triggered, and the detected data of the specific position in the tunnel are transmitted to an upper computer by a wireless communicator. The vehicle-mounted measurement device disclosed by the invention makes breakthroughs in the practical technical innovation of the online monitoring of the tunnel structure safety, lays a foundation for forminga technical system for the reliability design, analysis, test and evaluation of rail transit facilities, and has practicality in many fields.

The invention discloses a method for preparing multi-sulfhydryl carboxylic ester. The method comprises the steps of carrying out an esterification reaction on sulfydryl carboxylic acid and polyatomic alcohol under catalysis of an acid catalyst to obtain a crude product of the multi-sulfhydryl carboxylic ester; meanwhile, distilling and bringing out water generated in the esterification reaction through adding an azeotropic water-carrying agent; extracting excessive raw material sulfydryl carboxylic acid and the catalyst in the multi-sulfhydryl carboxylic ester crude product generated through the esterification reaction by using an alcohol extracting agent, purifying to obtain the multi-sulfhydryl carboxylic ester; and recycling the residual sulfydryl carboxylic acid and catalyst after distilling and recovering the extracting agent. The multi-sulfhydryl carboxylic ester prepared by adopting the method disclosed by the invention is high in purity, good in color, weak in odour or odorless, simple in process, green and environment-friendly and has the advantages that the generated industrial effluent is little, the catalyst and the excessive sulfydryl carboxylic acid can be recycled and better economic value is achieved.

A method for the removal and sequestration of ammonia nitrogen from anaerobic fermentation effluent while producing a higher BTU biogas. The method includes the steps of removing the slurry from the digester, stripping the ammonia from the slurry or portion thereof with a high BTU biogas, blending the stripped ammonia with the digesters biogas to remove the carbon dioxide and precipitate ammonium bicarbonate / carbonate as a solid while producing a high Btu biogas, a portion of which is used to strip the ammonia and CO2 from the slurry. The process removes ammonia nitrogen from the digester effluent while producing a high Btu biogas and a solid ammonium bicarbonate / carbonate product. Ammonia stripping is accomplished with a recycled stripping gas deficient in CO2 and ammonia that is capable of removing the CO2 and ammonia from solution by virtue of the lower partial pressures of CO2 and ammonia in the stripping unit.

A process is disclosed which incorporates implantation of a carbon cluster into a substrate to improve the characteristics of transistor junctions when the substrates are doped with Boron and Phosphorous in the manufacturing of PMOS transistor structures in integrated circuits. There are two processes which result from this novel approach: (1) diffusion control for USJ formation; and (2) high dose carbon implantation for stress engineering. Diffusion control for USJ formation is demonstrated in conjunction with a boron or shallow boron cluster implant of the source / drain structures in PMOS. More particularly, first, a cluster carbon ion, such as C16Hx+, is implanted into the source / drain region at approximately the same dose as the subsequent boron implant; followed by a shallow boron, boron cluster, phosphorous or phosphorous cluster ion implant to form the source / drain extensions, preferably using a borohydride cluster, such as B18Hx+ or B10Hx+. Upon subsequent annealing and activation, the boron diffusion is reduced, due to the gettering of interstitial defects by the carbon atoms.

The invention provides a process for preparing a PVC overwater enclosure coating material, which comprises delivery of PVC grey cloth, preheating and ironing, double-face coating treatment, pre-plasticizing and gelling, planishing and cooling, primary coating of a horizontal coating head, plasticizing treatment, cooling and shaping, secondary coating of the horizontal coating head, plasticizing treatment, embossing, cooling, winding, surface treatment and preparation. The process combines net sandwich cloth coating and surface treatment process, is complete relatively to common coating processing, can process a vertical coating, a surface layer and a bottom layer, reduces the intrusion of ultraviolet rays on the coating by adopting the surface treatment process on the one hand, can prevent plasticizing agent from being transferred to the surface of a product on the other hand so as to achieve the antifouling effect and achieve the aim of self-cleaning by means of rainwater; and the product has good air tightness and superior abrasion-resisting property, is suitable for outdoor application, and has long service life and remarkable economic benefit.