32results about How to "Good separation and enrichment effect" patented technology

The invention provides a complex tracer agent for oil field high-temperature hypersalinity block interwell monitoring and the application thereof. The tracer agent comprises one or more of chlorinated hydroxylamine erbium, hydroxylamine gadolinium chloride, chlorinated hydroxylamine dysprosium, chlorinated hydroxylamine ytterbium and chlorinated hydroxylamine holmium, and the tracer agent is formed by a tracer element and a complexing agent in a complexing mode. The tracer element is selected from one or more of erbium, gadolinium, dysprosium, ytterbium and holmium, the complexing agent is hydroxylammonium chloride, and the molar ratio between the tracer element and the complexing agent is 1:8-1:9 and preferably is 1:8. The tracer agent can resist high temperature (250 DEGC-300 DEG C) and hypersalinity (5000mg / L-20000mg / L). The invention further provides a tracer method for conducting the oil field high-temperature hypersalinity block interwell monitoring by means of the tracer agent, and the method comprises the process of conducting separation and enrichment on the tracer agent in a taken sample.

The invention discloses a magnetic extraction and enrichment method of an effective component in rheum officinale. A rheum officinale extracting solution is prepared from rheum officinale medicinal materials or a rheum officinale solid preparation according to the pharmacopeia, wherein the rheum officinale extracting solution, mesoporous ferroferric oxide nano-particles and an ionic liquid are prepared into enriched mixed liquor in a manner of adding water; each 1230mu L of enriched mixed liquor comprises the following components: 20mu L of rheum officinale extracting solution, 8-20mg of nano mesoporous ferroferric oxide, 0.2-0.6mg of ionic liquid, and the balance of water; the pH value is 9-13. The method comprises the following steps: loading the enriched mixed liquor into a centrifuge tube, whirling for 10-30 seconds on a vortex finder, approaching the bottom of the centrifuge tube by a magnet after standing; gathering the mesoporous ferroferric oxide nano-particles at the bottom of the centrifuge tube, and removing an upper water solution, so as to obtain enriched mesoporous ferroferric oxide nano-particles; eluting by a methanol solution containing acetic acid of which the mass fraction is 1-4%; collecting eluent and drying by distillation, so as to prepare enriched rheum officinale extractum, wherein the ionic liquid is brominated 1-dodecyl-3-methylimidazole, chloridized 1-dodecyl-3-methylimidazole, 1-butyl-3-methyl imidazolium tetrafluoroborate or 1-butyl-3-methyl imidazole polystyrene sulfonate, preferably chloridized 1-dodecyl-3-methylimidazole. The method disclosed by the invention is fast in speed, good in enrichment effect, and high in repeatability and reproducibility.

The invention relates to a method for separating germanium from a levextrel resin by adsorptive extraction. The technical scheme is as follows: the method comprises the following steps: uniformly mixing an AB-8 macroporous resin, N235 and an impregnant, stirring in a 50-70 DEG C water bath for 1-3 hours, and heating to 80 DEG C to dry off the impregnant, thereby obtaining an N235 levextrel resin; putting a germanium-containing solution, the N235 levextrel resin and tartaric acid in a container, regulating the pH value to about 2.0, oscillating and stirring for 80-100 minutes, and filtering to obtain a germanium-adsorbed N235 levextrel resin; and adding an eluting agent into the germanium-adsorbed N235 levextrel resin, oscillating and stirring for 80-100 minutes, filtering, and taking the filtrate. The method is simple, and has favorable separation and enrichment effects; the extraction rate can reach 89% above, and the eluting rate can reach 90% above; and it is proved that the N235 levextrel resin only adsorbs germanium, so the purity is high, and the germanium can be effectively separated from impurity ions.

The invention discloses a molybdenum ion imprinted amino-functionalization chitosan I-EDA-CS adsorbent. A preparation method comprises the following steps: (1) adding an ammonium molybdate solid into a mixed solution of water and ethanol, and stirring for reaction to obtain a colorless transparent liquid; (2) dropwise adding ethylenediamine, continuously stirring at normal temperature, adding epoxy chloropropane, stirring in backflow, adding a proper amount of biomass chitosan, stirring in backflow, washing and drying to obtain an intermediate product; and (3) removing molybdenum imprinted ions from the intermediate product by HCl, washing the intermediate product with distilled water till the product becomes neutral, and drying to obtain molybdenum ion imprinted amino-functionalization chitosan. The preparation method is simple and green and is free of pollution, and the ion imprinted amino-functionalization chitosan adsorbent is high in separation and enrichment efficiency and can be used for selectively adsorbing rhenium from a rhenium contained solution. The preparation method is free of energy consumption, has energy saving and environment protecting effect, and has large adsorbing capacity, wide applicability and practical applicability.

The present invention discloses a method for efficiently separating and enriching tin from nickel-tin-iron alloy scrap. The method comprises that: nickel-tin-iron alloy scrap is added into a metallurgy furnace, the material is subjected to mixing melting under a heating effect of the metallurgy furnace, a vulcanizing agent is blown into the melting pool through a spray gun after the material is subjected to complete melting so as to carry out a vulcanizing detinning reaction, the high temperature flue gas produced during the process is cooled, and the tin-containing flue dust is recovered. According to the present invention, characteristics of short process, low energy consumption, easy operation, and significant tin separation and enrichment effect are provided, and the qualified nickel-iron alloy raw material can be obtained; the characteristic that tin in the alloy scrap is easily subjected to vulcanizing volatilization is completely utilized, and the tin separation effect is significant; other impurity elements are not introduced in the melting pool, and the quality of the remaining nickel-iron alloy raw material is high; and the operation of the process is simple, and the promotion application prospect is good.

The invention discloses a heavy metal ion adsorbent for grating glycine to chloromethylated polystyrene, a preparation method and an application thereof, and belongs to the technical field of a solid-phase extraction agent. The technical solution of the invention is that: a heavy metal ion adsorbent for grafting glycine to chloromethylated polystyrene takes chloromethylated polystyrene and glycine as raw materials, and glycine is grafted on the chloromethylated polystyrene surface through one-step synthesis. The invention further discloses the preparation method of the heavy metal ion adsorbent for grating glycine to chloromethylated polystyrene and the application of taking the adsorbent as the solid-phase extraction agent to selectively separate and enrich trace Pb2+ from environmental samples. The heavy metal ion adsorbent is simple in a synthetic method, good in selectivity and high in sensitivity, nontoxic, easy to regenerate and recyclable.

The invention discloses a synthetic method and an application of a crystal violet molecularly imprinted micro-sphere. Crystal violet serves as a template molecule, MAA (methacrylic acid) serves as a functional monomer under the condition of acetonitrile solvents, EGDMA (ethylene glycol dimethyl acrylate) or DVB (divinylbenzene) serves as a crosslinking agent, polymerization reaction is performed by a thermostatic water-bath vibration precipitation polymerization method to synthesize a crystal violet molecularly imprinted polymer, the molecularly imprinted micro-sphere can effectively adsorb the crystal violet and has good specific identifiable characteristics, and better separation and enrichment effects are achieved by identification and adsorption of the template molecule. Based on design of integral synthetic steps, the influence of optimized crosslinking agents, stirring modes, the template molecule, the functional monomer, crosslinking agents and solvent dosage proportion on the performance of the micro-sphere is further summarized, the adsorption capacity of the polymer is as high as 39.12 micro-mol / g, an imprinted factor is 3.17, and the synthesized polymer has good adsorption identification capacity for a target molecule and has an excellent application prospect.

The invention provides a three-in-one molecular imprinted column capable of separating clenbuterol, salbutamol and ractopamine at the same time. The molecular imprinted column contains an imprinted polymer capable of respectively identifying and separating three molecules, namely the clenbuterol, the salbutamol and the ractopamine. A method for preparing molecular imprinted microspheres is to perform suspension polymerization in a water phase system, and obtained molecular imprinted polymer particles can be directly packed in the column for use without being ground and sieved.

The invention relates to a sulfonation method of natural zeolite for adsorption and recycling of rare earth ions. The method comprises the following steps of firstly, acidizing the natural zeolite, then conducting sulfhydrylation grafting on the surface of the acidized natural zeolite, oxidizing sulfydryl on the surface of the natural zeolite subjected to sulfhydrylation, and finally, acidizing the obtained product in an acidic solution so as to obtain the sulfonated natural zeolite. The sulfonated zeolite not only has the original high specific surface area of the zeolite but also has functional groups with chelation action, and can gather and separate the rare earth ion furthest under the synergistic effect of two different adsorption modes.

The invention discloses an integrated process for thermal washing of oily waste and high-value utilization of fine residue based on gasified black water. For solid waste, send the oil-water scum to the sorting tank; 2. Clarify the gasified black water to obtain concentrated black water, filter the concentrated black water to obtain gasified fine residue, and separate the gasified black water and gasified fine residue, or Introduce the gasified black water, concentrated black water and gasified fine slag into the sorting tank filled with oil-water scum and stir to obtain a pulp; 3. Flotate the pulp to obtain carbon-rich fine powder and decarbonized tail ash; 4. Put the rich Carbon fine powder is involved in the preparation of gasification slurry, and the decarbonized tail ash is used in construction materials. The present invention highly integrates and couples the gasified black water heat washing oily waste with the separation and enrichment of residual carbon of gasified fine residue, realizes the resourceful treatment of oily waste, reduces the separation cost of carbon-ash in gasified fine residue, It has excellent promotion value and application prospect.

The invention relates to a phospho modified cellulose adsorbent, and a preparation method and application thereof. The technical scheme is as follows: the preparation method comprises the following steps: taking 1,3-dibromopropane and tributyl phosphite, carrying out reaction at 138-142 DEG C for 18-22 hours, and carrying out rotary evaporation at 115 DEG C under reduced pressure to obtain an intermediate product I; taking DMF (N,N-dimethylformamide), adding OCS and NaH in a nitrogen protective atmosphere, stirring in an ice water bath for 1 hour, removing the ice water bath, heating to 40-45 DEG C, reacting for 4 hours or so, adding the intermediate product I, mixing and stirring to react at room temperature for 24 hours, carrying out vacuum filtration, washing respectively with HCl and distilled water, and drying to obtain an intermediate product II; and in a nitrogen protective system, mixing the intermediate product II with ethanol, adding a KOH solution, stirring under reflux at 75 DEG C for 24-50 hours, carrying out vacuum filtration, washing respectively with HCl and distilled water to a neutral state, and drying. The adsorbent provided by the invention has high separation and enrichment efficiency, and can be used for selectively adsorbing scandium from a mixed rare earth ion solution.

The invention discloses a method for separating and enriching lithium isotopes, which comprises the steps of: S1, preparing an organic phase for extraction: using a crown ether derivative represented by the following formula A or formula B as an extracting agent, mixing the extracting agent with hydrophobic ions The liquid and the diluent are mixed to obtain an extraction organic phase; S2, the extraction water phase is prepared: the water-soluble lithium salt is prepared into a lithium salt solution, which is used as the extraction water phase; S3, the extraction organic phase and the extraction water phase are fully mixed and extracted and then separated. phase, to obtain a loaded organic phase and a raffinate; S4, calcining the loaded organic phase at a temperature of 400°C to 1000°C for 30min-200min to obtain a slag phase; S5, to dissolve the slag phase with water, and perform solid-liquid separation to obtain 6 Li enrichment solution; S6, with 6 The Li enriched solution is used as the extraction water phase, and the above steps S3 to S5 are repeated. Based on the crown ether extraction system, the invention provides a brand-new process method without back-extraction operation, is a rapid superposition cross-flow multi-stage cascade separation method, and enriches the method for separating and enriching lithium isotopes.

The invention discloses a method for isolating and culturing mouse spermatogonial stem cells, which utilizes neutral protease digestion to isolate mouse spermatogonial stem cells, which are mild in nature, highly efficient, and less irritating to cells. The enrichment steps of mouse spermatogonial stem cells are combined with Passaging organically combined with the use of neutral protein to digest adherent mouse spermatogonial stem cell colonies to achieve a better enrichment effect. The invention has the characteristics of simple separation and cultivation operation, short time, good effect and low cost.