54results about How to "Does not affect extraction" patented technology

The invention provides a method for extracting lithium from salt lake brine, comprising the following steps: 1) mixing organic phase composed of salt lake brine, extracting agent and extracting medium with synergist, extracting the mixture and collecting the organic phase; 2) mixing the organic phase in step 1 with hydrochloric acid solution and carrying out back-extraction on the mixture, collecting aqueous phase to obtain aqueous solution of Lithium-ion; the step is characterized in that the extracting medium is hydrophobic ionic liquid. Compared with the traditional method for extracting lithium from salt lake brine with solvent gasoline as the medium, the method of the invention employs green and environmental-friendly ionic liquid as the medium; as a result, lithium salt extraction efficiency is improved, back-extraction acidity is lowered, what is more important is that environmental pollution and equipment corrosion due to use of a great deal of volatile organic solvent and high-concentration hydrochloric acid are avoided. In addition, the organic phase of the invention features fine cyclic applicability, thus greatly reducing production cost for extracting lithium from the salt lake brine.

The invention relates to a production method of low-rack coal degradation liquid. Low-rack coal used as a raw material is added with 2-10% of mixed oxidizing agent, 0.1-0.6% of negative catalyst and 0.2-0.5% of stabilizer to oxidize and degrade the low-rank coal, and the mixture is subjected to oxidation reaction, centrifugalization, filtering and vacuum rotating evaporation to obtain colourless low-rack coal degradation liquid. The colourless low-rack coal degradation liquid used as a new product has good effects in promoting growth and development of crops, increasing crop output, improving the crop quality, improving the seed germination rate, improving the plant salt resistance and the like, and is a multi-functional crop conditioner (plant conditioner); the process is simple, energy-saving and environment-friendly, and high in efficiency; one set of equipment can produce the low-rack coal degradation liquid and fulvic acid simultaneously, and the low-rack coal degradation liquid is safe and non-toxic, has strong appetency to plants, can take effect rapidly and is convenient for use.

The invention relates to a lavandula angustifolia Mill. cutting propagation method. The invention relates to a cutting propagation method adopting the annual plants of lavandula angustifolia Mill. as mother ears, aiming at the present problems of low setting percentage, long seed germination and raised seedling propagation time, low survival percentage and the like of lavandula angustifolia Mill. The method comprises the steps of cutting medium preparation, cutting selection, rooting agent treatment, cutting, cutting culture conditions, management after cutting, transplanting and land management, wherein the cutting medium is optimized and the cuttings are subjected to single-cup single-plant cutting. The method has the following beneficial effects that the rooting percentage of the cultured cutting seedlings reaches 91%; the root systems are flourishing; and the transplanting survival percentage reaches 100%. Compared with lavandula angustifolia Mill. tissue culture and rapid propagation methods, the method has the advantages of simpleness in operation, small amount of labor, high growth speed, high rooting percentage, high transplanting survival percentage, robust seedlings and the like and has higher popularization and application values and vast development prospect.

The invention relates to a method for preparing lithium carbonate by using high boric bittern saturated solution, which is mainly used in the production of lithium carbonate prepared by using deep marine bittern rich in potassium and comprises the process flow that the high boric bittern saturated solution is prepared into a lithium carbonate product through calcium and magnesium removal, evaporation and concentration, boron removal, lithium settlement and washing. The method has the advantages of simple and feasible process, low equipment investment, low production cost, high yield, better economic and social benefits and the like, and can reclaim boron at the same time; and the high-content boron does not influence the extraction of lithium.

The method discloses a method for acoustically monitoring blockage of a gas extraction pipeline. An acoustic wave sensor is arranged in the bending segment of the gas extraction pipeline to receive acoustic waves of friction between accumulated water and coal slag in the pipeline and the pipeline wall, acoustic wave signal strength is analyzed and processed through a monitoring host, then, the acoustic wave signal strength is compared to precisely find out the blockage area of the extraction pipeline, and the blockage level of the accumulated water and the coal slag in the pipeline is obtained, so that monitoring of the blockage condition of the points nearby the bending segment is achieved; the method for acoustically monitoring blockage of the gas extraction pipeline in a portable and passive manner can detect the blockage degree of the extraction pipeline in real time, the pipeline dredging work can be rapidly guided, and therefore the gas extraction efficiency is improved; and the method is not affected by the pipeline material, the blockage point can be precisely positioned, when the acoustic wave sensor is mounted, the extraction pipeline does not need to be dismounted, normal gas extraction work is not affected, and the extremely high field practical value is achieved.

The invention discloses a nucleic acid preserving fluid and a preparation method and an application thereof, and belongs to the technical field of biological products. The nucleic acid preserving fluid disclosed by the invention has lower cost of raw materials, fewer components, simple and quick preparation, accurately controlled dosages of additives and reduction of production cost. The nucleic acid preserving fluid can stably preserve nucleic acid samples for 15 days under the transportation condition of 0-50 DEG C without affecting subsequent DNA/RNA extraction and detection experiments ofthe samples, and has a good preservation effect. The nucleic acid preserving fluid can be stably preserved for 2 years under the transportation condition of 0-50 DEG C without affecting subsequent DNA/RNA extraction and detection experiments of the samples, and has long preservation time.

The invention provides a tobacco online weighing device which comprises a belt conveying device I, a belt conveying device II, a transport weighing device, a PLC control system and a computer. The belt conveying device I is provided with a photoelectric sensor and a travel switch. The PLC control system controls the working of a servo motor. When the photoelectric sensor detects an electric signal, the photoelectric sensor sends a command to the servo motor to control the servo motor to start working to drive the transport weighing device to move to the direction of the belt conveying device II, when the transport weighing device returns and touches the travel switch, the servo motor stop working, and a strain type weighing sensor transmits detected data to the computer at the same time. According to the device, through using a crank slider mechanism, the tobacco on the belt conveying device I is transported to the belt conveying device II in the process of weighing, the weighing is completed in the conveying process, the online real-time weighing of the tobacco is realized, the efficiency is improved, and the extraction of the subsequent characteristic parameters in the belt conveying device II is not affected.

The invention discloses a method for inactivating virus in source plasma of a blood product. The method disclosed by the invention comprises the following steps: (1), mixing plasma; (2), stirring by adding a CaCl2 liquid, filtering and clarifying by using a filter element, thus obtaining a filtered liquid; (3), adding a mixed liquid of tween-80 and Tri-n-butyl phosphate (TNBP) so that the final volume percentages of tween-80 and TNBP are (1+/-0.3)% and (0.3+/-0.1)% respectively, keeping the temperature of reaction liquid at 24+/-2 DEG C, and keeping the constant temperature for 4-6 h; (4), adding vegetable oil so that the final volume percentage of vegetable oil is (5+/-2)%, and reducing the temperature of the reaction liquid to 16+/-2 DEG C; (5), stirring and standing; and (6), extracting, and eliminating an oil phase, thus obtaining a liquid phase. By means of the method disclosed by the invention, the safety of the source plasma is greatly increased; and the secondary pollution rate is reduced.

The invention discloses a cyanobacteria cell crushing method and a cyanobacteria cell crushing device. The cyanobacteria cell crushing method comprises the following steps: (1) centrifuging an alga liquid of cyanobacteria cells to be crushed, and discarding the supernate to obtain precipitate; and (2) adding emery into the precipitate obtained in the step (1). The experiment shows that the cyanobacteria cell crushing method disclosed by the invention is efficient and practical, is not only applicable to single cell cyanophyta, but also applicable to filiform cyanophyta, the time for crushing the cyanobacteria cells in a laboratory is shortened to be six minutes from hours, the cell crushing rate is increased to be more than 95% from the original 65%, and moreover later product extraction and product activity are not affected. Due to adoption of the method, difficulty of cell crushing in the fields of laboratory investigation and industrial application of cyanophyta is solved, and the cyanophyta research and development efficiency and the production efficiency of natural cyanophyta products are greatly improved.

The invention relates to a digital video watermarking method based on one-dimensional wavelet transform, belonging to the technical fields of video signal processing and multimedia signal processing, and comprising the steps: 1) watermarked image preprocessing, adopting a scrambling conversion technique to disarrange the space positions of pixels, leading videos loaded with watermark to have shearing capability, and strengthening the security of a watermarking algorithm; 2) one-dimensional wavelet transform, taking two continuous frames from an original video sequence to carry out one-dimensional wavelet transform; 3) embedding watermark, embedding watermark into each branch block with low frequency frame obtained in the step (1), and realizing the real-time embedding of the watermark; and 4) detecting watermark, taking two continuous frames from the watermark to be detected to carry out one-dimensional wavelet transform, carrying out block dividing operation to the obtained low frequency frames, and conducting watermark extraction according to an embedded algorithm. In the invention, the complexity of embedding and extracting watermarks is greatly reduced, and the embedding and the extraction of the watermarks can be carried out in real time, the efficiency is improved, and simultaneously the attack to the frame rearrangement has obvious robustness.

The invention relates to a medical separation and extraction device, which comprises a first container, a second container and a third container, wherein the first container comprises a first outer wall, a first cavity and at least a communication opening penetrating through the first outer wall, the second container comprises a second outer wall, a second adjusting member and a second cavity, thethird container comprises a third outer wall, a third adjusting member and a third cavity, the volumes of the second cavity and the third cavity are correspondingly changed along with the sliding ofthe second adjusting member and the third adjusting member respectively, the second cavity and the third cavity can be communicated with the first cavity respectively through the communication opening, the third container is detachably connected to the first container, and the second container is provided with a port capable of directly extracting blood through an injection needle. According to the medical separation and extraction device of the invention, the whole sucking, separation and extraction process can be realized by only adopting the device under the conditions of liquid collectionwith no use of additional injection needle and sucking storage of the extract, so that the operation is simple, and the pollution risk is reduced.

The invention belongs to the technical field of economic forest tree seedling raising and particularly relates to a method for sterile cottage and rapid seedling propagation and raising of Australian melaleuca alternifolia. The method includes the following steps of (1) selection and processing of an explant material, (2) establishment of sterile strains for the first time, (3) multiplication culture, (4) rooting culture and (5) transplantation. The method utilizes a cutting technology and also utilizes a tissue culture technology, and therefore the method is high in cutting efficiency and is not affected by the environment. The source problem of cuttage branches is solved through self in-vitro propagation without forest tree consumption, tree growth and essential oil extraction are not influenced, and meanwhile the propagation efficiency is improved.

The invention provides a defoamer composition for pharmaceutical production, which is prepared from the following components in parts by mass: 20-60 parts of dimethyl silicone oil, 20-30 parts of polymethylsiloxane, fluorosilicone oil 2‑10 parts, 4‑8 parts of thickener, 10‑15 parts of emulsifier, 10‑100 parts of deionized water. The defoamer composition can efficiently eliminate and suppress foaming, has stable performance, less dosage, is non-toxic and environment-friendly.

The invention discloses fecal sample stabilization fluid as well as a preparation method and an application method thereof. The fecal sample stabilization fluid comprises a cell buffer component, an ion-chelated DNA stabilization component, and a microorganism proliferation prevention component; the cell buffer component is prepared by blending trihydroxymethyl aminomethane with sodium chloride; the ion-chelated DNA stabilization component is ethylenediaminetetraacetic acid; and the microorganism proliferation prevention component is prepared by blending an ammonium persulphate solution with water. The preparation method of the fecal sample stabilization fluid comprises the following steps: preparing a trihydroxymethyl aminomethane-hydrochloric acid solution; preparing an ethylenediaminetetraacetic acid solution; preparing a sodium chloride solution; and then, dissolving the ammonium persulphate in the water, adding the trihydroxymethyl aminomethane-hydrochloric acid solution, the ethylenediaminetetraacetic acid solution and the sodium chloride solution, and carrying out mixing so as to obtain a finished product. The application method of the fecal sample stabilization fluid comprises the following steps: adding a fecal sample into the fecal sample stabilization fluid, wherein the volume of the fecal sample is equal to the volume of the fecal sample stabilization fluid, and carrying out uniform mixing so as to obtain a mixture; and then, storing the mixture with the temperature controlled within 37 DEG C. The fecal sample stabilization fluid is capable of effectively maintaining stability of tested components, and enables storage of fecal samples for a long period of time.

The invention provides an extraction method, a line selection method and system for a small-current grounding fault quantity of a transformer. According to the three-phase current at the power supplyof the transformer, the load current of each phase of the load side of the transformer is calculated, the load side fault quantity of the transformer is obtained by eliminating the load current in thephase current of the load side of the transformer through the power side current of the transformer, the fault quantity of the transformer of a low-current grounding system can be extracted more effectively, and the low-current grounding line selection sensitivity is improved.

The invention relates to an emergency treatment method of chlorine effusion during producing a beta-hydroxyl-beta-methyl butyric acid. The method for emergently treating the chlorine effusion during the production of the beta-hydroxyl-beta-methyl butyric acid and derivatives thereof by a diacetone alcolol method comprises the following steps of: once chlorine effuses, immediately stopping dropping a sulfuric acid or hydrochloric acid solution, immediately adding sodium bisulfite, stirring for 0.5-1 hour; and then continuing dropping the sulfuric acid or the hydrochloric acid solution till a complete acidification, wherein the weight ratio of the sodium bisulfite to the diacetone alcolol as the raw material is 1:6-1:8. The chlorine effusion is caused by excessive sodium hypochlorite (NaOCl) aqueous solution during a haloform reaction and the chlorine is then generated by the reaction between the sodium hypochlorite and the sulfuric acid (hydrochloric acid) during the acidification. In the invention, the sodium bisulfite is used for neutralizing the excessive sodium hypochlorite, and generated sulfate and hydrochloride do not influence the extraction of HMB, thus the product quality is not influenced.

Methods and systems for preparing vinegar. The present invention proposes a method for preparing vinegar liquid. The method comprises: drenching mature vinegar grains with vinegar n times; 12, 13 or 14. The total acid content of the vinegar liquid prepared by the method is more than 4.2g/100mL, and the total acid content in the vinegar residue is less than 0.05g/100g, which greatly improves the extraction rate of acetic acid and avoids microbial contamination.

The invention discloses a configuration needle with an air pressure balancing function and a configuration device. The configuration needle comprises a needle tip and a needle stand. The needle head is internally provided with double chamber channels for ventilating and liquid passing. The ventilating channel is internally provided with an upper hole which is next to the needle tip part, and a lower hole which is close to the needle stand part. The liquid passing channel is internally provided with a liquid passing hole. The connecting position between the needle stand and the needle tip is provided with a needle stand interface which corresponds with the lower hole, thereby communicating the ventilating channel with outside through the needle stand interface. According to the configuration needle with the air pressure balancing function, through arranging the ventilating channel and the liquid passing channel which are isolated from each other, forming of the positive air pressure andthe negative air pressure can be prevented, and a medicament configuration operation rate and reliability are improved.