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180results about How to "Increase ion concentration" patented technology

Flue gas deep desulfurization and dust removal device and method by use of carbide slag-gypsum method

The invention discloses a flue gas deep desulfurization and dust removal device and method by use of a carbide slag-gypsum method. The flue gas deep desulfurization and dust removal device comprises a desulfurizing tower, a wet type electric precipitation demister, a sedimentation tank, a dehydration system and a grout preparation system, wherein the two-stage desulfurizing tower is connected with the wet type electric precipitation demister in series, and compared with a traditional double-tower double-circulation desulfurization process, the method has the desulphurization efficiency up to 99% and more, and the occupying space of the desulfurizing tower can be effectively reduced; carbide slag is used as a desulfurizing agent, a method of waste control by waste is utilized, the method is environmentally friendly and has the remarkable economic benefit; two-stage cyclone classification grouting is adopted, and grouts with different specifications can be prepared, while the absorption efficiency of the desulfurizing tower is ensured, a filling layer inside the desulfurizing tower can be prevented from blockage effectively; the wet type electric precipitation demister is combined to further improve the dedusting efficiency, and the device and the method can be used for achieving zero emission of dust such as PM2.5 particularly.
Owner:AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD

Method for processing quick-frozen fresh lotus

The invention provides quick-frozen fresh lotus processing technology. In the technology, a quick-frozen fresh lotus finished product is obtained by the harvesting of fresh lotus, shelling, stripping, core hollowing, low-temperature vacuum filling, impregnation for pre-cooling, draining, quick-freezing, packaging and cold storage. Due to the adoption of the low-temperature vacuum filling technology to combine pre-cooling, color conservation and anti-freezing processes, the technology inhibits the activity of PPO and POD, prevents the browning of the quick-frozen fresh lotus in the processing and storage, reduces the damage and softening of tissue cells, endows the product with crisp texture and faint scent, improves the ion concentration and osmotic pressure of the cells of the fresh lotus, effectively rises the vitrification transition temperature, promotes the exhaust of air from tissues, reduces the swelling pressure of ice crystals, prevents low-temperature breakage, shortens the processing time, is easy to control, high in operability, less in energy consumption and suitable for the large-scale production of the quick-frozen fresh lotus, and develops a new way for the deep processing of the lotus industry. The product completely keeps the original taste and smell of the fresh lotus, has the faint scent and is convenient to take.
Owner:福建闽江源绿田实业投资发展有限公司

Process for separation of acid and salt in salt-containing waste acid

The invention discloses a process for separation of acid and salt in salt-containing waste acid. The process includes: subjecting salt-containing waste acid to multi-period adsorption-elution treatment by an acid adsorption resin column, during adsorption, passing waste acid return liquid, residual waste acid liquid and a salt-containing waste acid stock solution obtained in a previous period sequentially through acid adsorption resin from the bottom up for acid adsorption, collecting residual elution water, deacidified salt-containing liquid and waste acid return liquid successively, stoppingliquid feeding after the volume meeting the requirement, completely feeding salt-containing waste acid in the first period, during elution, passing elution water return liquid, residual elution waterand elution water obtained in a previous period through acid adsorption resin from top to bottom in sequence for elution, and collecting residual waste acid liquid, desalted acid-containing liquid and elution water return liquid successively, stopping water inflow after the volume meets the requirement, completely feeding elution water in the first period, and performing repetition till completing treatment of the salt-containing waste acid. The process disclosed by the invention can be used for separation of various acids and cations, has good separation effect, is not limited by the heightof the resin column, does not generate volume expansion, and has wide applicability.
Owner:CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECH DEV CO LTD

Discharge method of waste lithium battery

The invention provides a discharge method of a waste lithium battery. The discharge method comprises the following steps of: firstly, directly contacting a waste lithium battery with a sacrificial anode to obtain a pretreatment system, immersing the pretreatment system in a conductive salt solution for discharge, and finally, leading out the positive electrode and the negative electrode of the battery, respectively connecting the positive electrode and the negative electrode with copper sheets, putting the copper sheets into the conductive salt solution, measuring the voltage of the battery until the voltage value tends to be stable, and ending discharge. The sacrificial anode can stably exist in a neutral or alkaline solution, the influence of illumination, temperature and the like is small, and the discharge condition is easy to control; the sacrificial anode is preferentially oxidized and dissolved in the discharge process to prevent chlorine from being separated out, so that the problem of electrolyte leakage pollution is effectively solved; moreover, as the sacrificial anode corresponds to the positive ions of the conducting salt, the ion concentration of the conductive salt solution is increased after the sacrificial anode is dissolved, the cyclic utilization of the conductive salt solution can be realized while the discharge rate is increased, and the discharge cost is saved. The method is simple in process, easy to operate and suitable for large-scale application.
Owner:ZHONGTIAN ENERGY STORAGE TECH +3

Method for producing high-purity magnesium oxide by using light calcined powder as raw material

A method for producing high-purity magnesium oxide by using light calcined powder as a raw material relates to a production method of magnesium oxide; ammonia gas and ammonia distilled liquid are obtained by the raw material of light calcined powder and an ammonium acetate solution through an ammonia distillation process; the ammonia distilled liquid is filtered to remove solids so as to obtain magnesium salt refined liquid; a magnesium precipitation reaction is performed by the refined liquid and the ammonia gas released in the ammonia distillation process to obtain magnesium hydroxide mother liquor; the magnesium hydroxide mother liquor is filtered to separate magnesium hydroxide filter residues and an ammonium acetate filtrate, and the filter residues are dried to obtain magnesium hydroxide; the dried magnesium hydroxide is calcined with a raw material additive to obtain the high-purity magnesium oxide product whose purity, whiteness, granularity, and bulk density meet requirements. The method produces high-purity magnesium oxide by using light calcined powder as a raw material, realizes ammonia (ammonium) circulation; not only the ammonia distillation time is shortened to less than 1 hour, but also the Mg2+ concentration of the magnesium salt liquid obtained after ammonia distillation is increased to above 2.5 mol / L; production energy consumption per unit product is reduced by 30-50%; the production cost is reduced and the economic benefit is improved.
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY

Special dispersant for hydraulic overflow classification for high-purity superfine silicon carbide micro powder for linear cutting and using method

InactiveCN102009977AGrading period is shortImprove yieldBacteriostatic agentAqueous solution
The invention relates to a special dispersant for hydraulic overflow classification for high-purity superfine silicon carbide micro powder for linear cutting and a using method, and belongs to the preparation of high-purity silicon carbide micro powder. The special dispersant is prepared from the following raw materials in percentage by mass: 50 to 70 percent of pure water, 25 percent of tetramethylammonium hydroxide, 15 to 35 percent of aqueous solution, 5 to 20 percent of alkyl alcohol amine, 2 to 10 percent of ethylene diamine tetraacetic acid (EDTA), 0.1 to 2.0 percent of fatty alcohol-polyoxyethylene ether, 0.5 to 3.0 percent of alkylpheol ethoxylate and 0.1 to 3.0 percent of bacteriostatic agent. The invention provides the special dispersant for the hydraulic overflow classification for the high-purity superfine silicon carbide micro powder for the linear cutting and a preparation method and the using method thereof, wherein the special dispersant has the advantages of short hydraulic overflow classification period in the production process of the high-purity superfine silicon carbide micro powder for the linear cutting, high yield, uniform product granularity distribution, difficult agglomeration of granules and capability of meeting the requirement of the linear cutting industry. The special dispersant can remarkably improve the potential of the high-purity superfine silicon carbide micro powder for the linear cutting and reduce the viscosity of slurry so as to remarkably optimize the rheological property of the slurry.
Owner:LINSHUSNTIAN ABRASIVE

New method and system for TSV blind hole filling

The invention discloses a new method and system for TSV blind hole filling. The new method includes the following steps that firstly, a silicon piece with a TSV blind hole is put into deionized water,vacuum suction pretreatment is conducted, and gas in the TSV blind hole is exhausted; secondly, the silicon piece obtained after pretreatment is integrally connected with an electroplating cathode; thirdly, an additive agent, an inhibiting agent and an accelerating agent are added into an electroplating solution, sufficient mixing is conducted, and a suspension electroplating solution is formed;fourthly, the suspension electroplating solution is added into an electroplating bath, an electroplating anode and an electroplating cathode of an electroplating power source are put into the suspension electroplating solution so that the silicon piece can be subjected to standing in the suspension electroplating solution, and the electroplating solution reaches adsorption balance preliminarily inthe TSV blind hole; fifthly, an inlet and an outlet of a circulation pump communicate with the suspension electroplating solution, the inlet communicates with the position of the electroplating anode, and the outlet communicates with the position of the electroplating cathode; and sixthly, a circulation pump is started, the electroplating power source is started at the same time, electroplating begins, and the flowing speed is provided for the suspension electroplating solution in the electroplating bath through the circulation pump. The filling efficiency can be effectively improved, and thecost is reduced.
Owner:CENT SOUTH UNIV

Air purifying device

The invention discloses an air purifying device which comprises an electronic filter screen component and a negative ion generator component. A first gap is formed between the electronic filter screen component and the negative ion generator component. The electronic filter screen component comprises a first negative ion transmitting board, a first negative ion transmitting line, a positive-negative high voltage module, a positive high voltage line and an electronic filter screen, wherein the positive-negative high voltage module is connected with the first negative ion transmitting board through the first negative ion transmitting line and connected with the electronic filter screen through the positive high voltage line, and a second gap is formed between the first negative ion transmitting board and the electronic filter screen which are opposite. The negative ion generator component comprises a second negative ion transmitting board, a second negative ion transmitting line and a negative ion generator, wherein the negative ion generator is connected with the second negative ion transmitting board through the second negative ion transmitting line, and the second negative ion transmitting board and the first negative ion transmitting board are disposed in the same direction. The air purifying device is capable of outputting high-concentration negative oxygen ions and effectively eliminating floating dust, especially particles within PM2.5 (particulate matter2.5).
Owner:王大君

Recovery method and recovery system for PTA refined mother liquor

The invention relates to a recovery method and a recovery system for PTA refined mother liquor, and belongs to the technical field of water treatment and resource recycling. An alkali is added into the PTA refined mother liquor and then the mother liquor is fed into an ultrafiltration system; ultrafiltration is carried out, and an ultrafiltration concentrated solution and an ultrafiltration filtrate are obtained; the ultrafiltration filtrate is fed into a reverse osmosis system A; wherein the filtrate of the reverse osmosis system A is produced water, and reuse is performed; a concentrated solution of the reverse osmosis system A enters an ion exchange system for adsorption of cobalt and manganese ions and other metal ions; effluent obtained after ion exchange separation enters a nanofiltration system, nanofiltration filtrate enters a reverse osmosis system B or an electrodialysis system, a main component in a concentrated solution of the reverse osmosis system B or a concentrated chamber of the electrodialysis system is acetic acid and can be recycled, and filtrate of the reverse osmosis system B and water in a light chamber of the electrodialysis system can be recycled. Comparedwith the prior art, the method has the advantages that various effective components and heat energy in the PTA refined mother liquor can be efficiently recovered and utilized, the discharge amount ofpollutants is reduced, and the PTA production cost and the wastewater treatment difficulty are reduced.
Owner:SHANGHAI KAIXIN ISOLATION TECH CO LTD

Method for detecting elements in solutions and device for realizing the same

The present invention pertains to the construction of analytical instruments and may be used for analysing naturel or industrial waters, biological samples as well as geological samples. The method for detecting elements in solutions comprises pulverising the samples using pulses, ionising the pulverised atoms during Penning's collisions and recording the ions thus formed during a mass spectral analysis while carrying out a separation of the ion time-of-flight. The pulse pulverisation of the sample is carried out from a surface which is heated at a temperature of between 1000 and 1500% C. and on which the sample dried in a flow of ballast gas forms a dry residue. The ballast gas may consist of Kr, Xe or mixtures thereof wich Ar under a pressure of between 1 and 2 torrs. The device for detecting elements in solutions comprises an ionising device which is arranged in a gas-discharge chamber filled with an inert gas. The detection device further includes a time-of-flight mass spectrometer which comprises an ion sampling and focusing system as well as a reflective mass in the shape of a spectral analyser. The ionising device is made in the shape of a thin-wall, metallic, cylindrical and hollow cathode that comprises a dosing opening which is used for introducing the sample to be analysed and which is located on a same axis with a vacuum port.
Owner:GANEEV ALEXANDR AKHATOVICH +1
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