20 results about "Separation procedure" patented technology

A blood separation device includes a pump system, a separator, and a controller. The controller is programmed to execute a blood separation procedure including a red blood cell collection stage in which blood is conveyed into the separator, red blood cells are separated from the blood in the separator, and the separated red blood cells are conveyed from the separator into a collection container. The red blood cell collection stage is ended when a target volume of blood has been separated in the separator. The controller then determines a percentage of the red blood cells from the target volume of blood that have been collected in the collection container based on the volume of red blood cells and the hematocrit of the fluid in the collection container, a volumetric flow rate of pure red blood cells in the blood conveyed into the separator, and the procedure time.

The present invention provides a method for stripping a composite by immersing the composite in a stripping solution, wherein the composite comprises a metal substrate and a coating applied to one or both sides of the metal substrate, wherein the coating comprises a polymeric binder, and wherein the polymeric binder comprises an aqueous copolymer. The use of a stripping solution comprising an alkali metal phosphate allows for a complete stripping of the composite in an efficient and extremely fast manner. Furthermore, the stripping method disclosed herein avoids complex separation procedures, contamination and corrosion of the metal substrate, and enables excellent material recovery. An application of the method for stripping an electrode of a battery is disclosed herein.

The invention relates to the technical field of sugar alcohol preparation, and discloses a preparation method of high-purity crystalline maltitol, which comprises the following steps: firstly, by taking corn starch milk as a raw material, preparing ultrahigh-content maltose syrup with the maltose content of more than or equal to 91%, the wheat triose content of less than or equal to 0.4% and the glucose content of less than or equal to 4% through an enzyme conversion method; carrying out hydrogenation reaction on the syrup by adopting a Raney nickel catalyst, and controlling the hydrogenation side reaction to be 2% or below, so as to obtain hydrogenated liquid with maltitol content of more than or equal to 88%; and then, a pigment separation procedure in a traditional process is omitted, and the hydrogenated liquid is directly subjected to decoloration, ion exchange, evaporation concentration, crystallization, centrifugation and drying treatment to finally prepare crystalline maltitol. According to the method, by screening a specific compound enzyme system and finely regulating the pH value and temperature control environment of a saccharification reaction system, the generation of maltose is effectively promoted, and side reactions such as excessive hydrolysis of glucose and reverse synthesis of trisaccharide are inhibited at the same time, so that the high-purity maltose syrup precursor is obtained.

The utility model relates to the field of cleaning and sorting devices, in particular to a cleaning and sorting device which comprises a mounting plate, a first sorting portion and a second sorting portion are arranged on one face of the mounting plate, a cleaning portion is arranged at the top of the mounting plate, and a discharging port is formed in the bottom of the cleaning portion. The lower portion of the discharging port corresponds to a feeding port of the first sorting part, a discharging port of the first sorting part corresponds to a feeding port of the second sorting part, and the first sorting part comprises a first baffle, a first sorting cylinder, a cavity, a flow guide hole and a material receiving groove; the first sorting part and the second sorting part are arranged on the mounting plate, the first sorting cylinder in the first sorting part is matched with the second sorting cylinder to achieve the sorting effect, the flow guide holes and the flow guide cavities in the first sorting cylinder can separate materials from water flow, and the flow guide holes and the flow guide cavities in the second sorting cylinder can separate the materials from the water flow. The problem that materials and sewage are difficult to separate after cleaning is solved, and meanwhile the phenomenon that the separation procedure is added is avoided.

The present invention provides a method for stripping a composite by immersing the composite in a stripping solution, wherein the composite comprises a metal substrate and a coating applied to one or both sides of the metal substrate, wherein the coating comprises a polymeric binder, and wherein the polymeric binder comprises an aqueous copolymer. The use of a stripping solution comprising a weak base allows for a complete stripping of the composite in an efficient and extremely fast manner. Furthermore, the stripping method disclosed herein avoids complex separation procedures, contamination and corrosion of the metal substrate, and enables excellent material recovery. An application of the method for stripping an electrode of a battery is disclosed herein.

The utility model discloses a primary cell extraction device, which relates to the technical field of cell extraction, and comprises a cell centrifugal machine and a collecting device, the bottom of the cell centrifugal machine is fixedly connected with the top of the collecting device, in the utility model, the device can automatically cut and crush a cell sample through the reverse rotation of a left group of cutters and a right group of cutters; manual intervention is greatly reduced, the cell extraction efficiency is improved, meanwhile, the crushing consistency of a packaged sample can be achieved, the purity and yield of subsequent cell extraction are improved, a cell centrifugal machine is started according to a preset separation program for primary cells, the centrifugal process is automatically completed, layering of the cells and impurities is achieved, and after centrifugation is finished, the cell extraction efficiency is improved. Separated cells and supernate can be accurately collected into corresponding containers through the collection device, tissue smashing, cell separation and collection are integrated in one device, the sample transfer frequency is reduced, the pollution risk is reduced, and the working efficiency is improved.

Systems and methods are provided for improving efficiency and quality of plasma being removed from a blood separation chamber. The system includes a separation chamber in which plasma is separated from cellular blood components, a pump for moving the plasma and an outlet line for removing the separated plasma from the blood separation chamber. An optical sensor assembly is configured to monitor the blood separation chamber and measure an interface position between the separated component and the plasma, and to generate an output indicative of the measured interface position. A controller is programmed to utilize a lipid concentration input of the blood and to set an original lipemia offset, a lipemia threshold and lipemia final setpoint from a predetermined database, and to use a proportional-integral-derivative control loop to assess the actual interface position plus the lipemia threshold to adjust and achieve a final lipemia setpoint for use during separation procedures.

An optical sensor assembly of a centrifuge of a biological fluid separation system includes a light source configured to emit light having an intensity toward a separation chamber received within the centrifuge, with at least a portion of the light exiting the separation chamber as transmitted light. A light detector receives at least a portion of the transmitted light as received light and transmits a signal based on the received light. A controller receives the signal from the light detector, then determines the location of an interface between two of the separated components within the separation chamber based at least in part of the signal. The controller is programmed to determine whether to control the light source to dynamically adjust the intensity of the light during a biological fluid separation procedure and / or to control the light detector to dynamically adjust an amplification of the signal during the procedure.

The present invention provides a method for stripping a composite by immersing the composite in a stripping solution; wherein the composite comprises a metal substrate and a coating applied to one or both sides of the metal substrate, wherein the coating comprises a polymer binder, and wherein the polymer binder comprises an aqueous copolymer. The use of a stripping solution comprising an alkali metal silicate allows for complete stripping of the composite in an efficient and extremely rapid manner. Furthermore, the stripping method disclosed herein avoids complex separation procedures, contamination and corrosion of the metal substrate, and enables excellent material recovery. Disclosed herein is an application of a method for stripping a battery electrode.

The invention relates to the field of oil sludge treatment, and discloses an oil sludge resourceful treatment device which comprises a shell, a feeding port is formed in the shell, impurity discharging ports are formed in the two sides of the shell, a conveying assembly is arranged in the shell and comprises a conveying roller, a detection assembly is arranged on the conveying roller, and a control assembly is arranged in the shell. The detection assemblies are arranged on the conveying roller in a step shape, and the differential design of the conveying blade and the oil storage pipe is combined, so that the stage treatment logic of removing large impurities at the front end and removing small impurities at the rear end is realized. According to the structure, impurities with different particle sizes are accurately recognized and captured in the conveying process by means of the hardness characteristic difference between the oil sludge and hard impurities, the problem that the impurities with different particle sizes are not thoroughly treated in a traditional single screening mode is solved, it is ensured that the impurities are comprehensively removed when the oil sludge is discharged, and a good foundation is laid for the subsequent resource separation procedure.

The invention discloses a waste copper pyrogenic process regeneration intensive smelting device which comprises a support, a smelting furnace, a copper-water separation assembly, a copper-water shaping assembly, a scraping assembly and a lifting driver, and the smelting furnace, the copper-water separation assembly, the copper-water shaping assembly, the scraping assembly and the lifting driver are arranged on the support. The material scraping assembly comprises a plurality of scraping plates, a transmission supporting rod and a guide supporting rod, the transmission supporting rod is used for connecting the scraping plates with one another, the guide supporting rod is arranged on the support, one part of the transmission supporting rod is in sliding connection with the guide supporting rod, and the other part of the transmission supporting rod is in sliding connection with the guide supporting rod. The lifting driver is used for driving the molten copper shaping assembly, the scraping plate and the transmission supporting rod to do synchronous lifting motion, through the arrangement, the scum separation procedure is completed before molten copper shaping is achieved, and the technical problems that in the prior art, the scum removal mode is low in efficiency, and potential casualty hazards of operators are caused are solved.

The invention belongs to the technical field of magnetite beneficiation, and particularly relates to a hard magnetite ore crushing and high-pressure roller milling closed-circuit beneficiation method which comprises the following steps: 1) after coarse crushed raw ore is screened, oversize products enter an intermediate crusher, and undersize products and intermediate crushed products are combined for secondary screening; and (2) oversize products obtained after secondary screening enter a fine crusher, are subjected to fine crushing and then return to secondary screening, and undersize products obtained after secondary screening enter a dry separation procedure. And (3) feeding the dry-separated magnetic intermediate product into a high-pressure roller. And (4) after high-pressure roller products are screened, oversize products with the size larger than 3 mm return to the high-pressure roller again, and undersize products with the size smaller than 3 mm are subjected to wet magnetic separation. According to the method, for the hard magnetite ore with the Leeb hardness of 16-18, the ore crushing granularity is reduced to the maximum extent, and the ore grinding power consumption is reduced; a large amount of dry tailings discarding is carried out before ore enters a mill, the iron ore concentrate production cost is reduced, meanwhile, the wet tailings discharge amount is reduced, and the service life of a wet tailings pond is prolonged; the granularity of ground products is reduced.

To provide dynamic adjustment of light intensity and / or signal amplification of an optical sensor assembly of a centrifugal separator during a biological fluid separation procedure.SOLUTION: An optical sensor assembly of a centrifugal separator of a biological fluid separation system includes a light source configured to emit light having an intensity toward a separation chamber stored in the centrifugal separator. At least a part of the light is emitted from the separation chamber as transmitted light. A photodetector receives at least a part of the transmitted light as reception light and transmits a signal on the basis of the reception light. A control part receives the signal from the photodetector, and determines a position of an interface between two components separated in the separation chamber on the basis of at least a part of the signal. The control part is programmed so as to determine as to whether to control the light source for dynamically adjusting the light intensity during a biological fluid separation procedure and / or whether to control the photodetector for dynamically adjusting signal amplification during the procedure.SELECTED DRAWING: Figure 1

The invention discloses a method for nitration synthesis of nitro-o-xylene by using a micro-channel reactor. The method comprises the following steps: (1) respectively conveying nitric acid and o-xylene into the micro-channel reactor through a constant flow pump; (2) mixing and contacting the two streams of liquid in the micro-channel reactor and reacting, and after the reaction is completed, enabling the mixed reaction liquid to flow out from an outlet of the micro-channel reactor; (3) after the mixed reaction liquid flows out, introducing the mixed reaction liquid into an oleic acid separation process to separate an organic phase from waste acid; and (4) introducing the separated organic phase into a rectification process to respectively obtain 3-nitro-o-xylene and 4-nitro-o-xylene. The micro-channel reactor is used for synthesizing the nitro-o-xylene, the reaction safety and selectivity are improved by accurately controlling the reaction conditions and the material ratio, and meanwhile waste acid and other impurities are effectively removed through the oleic acid separation procedure; and the rectification process ensures the high-purity separation of 3-nitro-o-xylene and 4-nitro-o-xylene.

The invention discloses a method for separating and recycling fine gold-loaded carbon in a carbon adsorption process, and belongs to the technical field of gold refining. The method comprises the following specific steps: a pretreatment stage, a fiber mixing stage, a plate shake vibration separation stage, a solid-liquid preliminary separation stage, a fiber-fine carbon mixture recovery and gold extraction stage and a fiber circulation stage. Through the interweaving effect of the modified plant fiber and the fine gold-loaded carbon, the retention rate of the fine carbon with the particle size larger than or equal to 1 micron can reach 95% or above and is increased by 25% or above compared with the existing 26-mesh screen separation (the retention rate is about 70%), the gold loss is effectively reduced, meanwhile, the independent separation procedure of the fiber and the fine carbon is omitted, a pyrogenic process or wet process recovery process is directly adapted, and the recovery efficiency is improved. And the equipment investment and the operation cost are reduced, and the process simplification rate reaches more than 40%.

The present invention belongs to the field of biochemistry, and particularly relates to a method for continuously catalyzing the preparation of xylitol by immobilized enzyme coupling ion exchange. Specifically, xylose reductase, glucose dehydrogenase and NADP + coenzyme are co-immobilized, and xylose and glucose are used as raw materials for enzymatic production of xylitol. After the enzymatic reaction, an ion exchange reaction is coupled. The setting of the ion exchange reaction can not only separate the by-product gluconate, but also use the basic anions exchanged during the ion exchange process to regulate the pH of the reaction solution, further ensuring the normal progress of the reaction; the xylitol and the by-product gluconate obtained by the reaction are separated without additional separation procedures. The method provided by the present invention successfully solves the problems of complex process, difficult separation and high cost in the refining process of xylitol by biological methods.

A blood processing device includes a pump system, a valve system, a continuous-flow centrifuge, and a controller programmed to control the operation of the pump system, the valve system, and the centrifuge to execute a blood separation procedure. The blood separation procedure executed by the controller includes pumping whole blood through a leukoreduction filter and into the centrifuge, separating the blood in the centrifuge into red blood cells and plasma, with an interface between the red blood cells and plasma located at an interface position within the centrifuge, and pumping at least a portion of the red blood cells and at least a portion of the plasma out of the centrifuge.

The utility model discloses separation equipment for seed processing. The separation equipment comprises a rubbing mechanism, a primary liquid separation mechanism, a secondary liquid separation mechanism and a water return tank which are arranged in sequence, the rubbing mechanism comprises a spiral conveyor, a shell barrel, an elastic net barrel coaxially arranged in the shell barrel and an electric rotating disc coaxially arranged in the elastic net barrel, a draining cavity is formed between the elastic net barrel and the shell barrel, a draining pipe is connected to the shell barrel, and a working cavity is formed between the electric rotating disc and the elastic net barrel; an outlet of the spiral conveyor is connected with the working cavity, and a discharge pipe communicated with the working cavity is further arranged on the shell cylinder. According to the watermelon seed rubbing device, the electric rotating disc is matched with the elastic net cylinder, flexible rubbing of a pulp and seed mixture is achieved, watermelon seeds are not prone to damage during rubbing, and the yield is guaranteed; in addition, effective separation of good seeds and wizened hollow defective seeds can be achieved through the multi-stage liquid separation procedure on the downstream of the rubbing mechanism, the separation efficiency is high, and the harvesting treatment efficiency of the watermelon seeds can be improved.

The present invention discloses a tetraazacyclic Tb(III) complex containing a triphenylamine fluorophore, a synthesis method thereof and applications thereof, belonging to the field of biomedicine. In the present invention, triphenylamine is used as an energy donor, which is connected to a tetraazacyclic ring with three amide arms through an amide bond to obtain a ligand TPA-Cy, and the ligand reacts with Tb<supgt;3+< / supgt; to obtain a tetraazacyclic Tb(III) complex containing a triphenylamine fluorophore, namely TPA-Cy-Tb. This complex can enhance fluorescence in aqueous solution to respond and recognize the biomarker dipicolinic acid of anthrax spores, and the lowest detection limit reaches 72 nM. The prepared TPA-Cy-Tb can be used to prepare a fluorescence probe for the quantitative detection of anthrax spores in the environment. The present invention has the advantages of cheap synthesis raw materials, simple synthesis process, easy separation procedure, high yield, stability and easy preservation. The fluorescence probe of the complex of the present invention can specifically be activated by DPA to have a fluorescence response and is used for the quantitative detection of anthrax spores, and has excellent biological application prospects.