18 results about "Cobalt chloride" patented technology

Provided is a method for separating impurities and cobalt without using an electrolysis process from a cobalt chloride solution containing impurities and producing a high purity cobalt sulfate. The production method for cobalt sulfate includes: a copper removal step (S1) of adding a sulfurizing agent to a cobalt chloride solution containing one or more impurities of copper, zinc, manganese, calcium, and magnesium and generating a precipitate of sulfide of copper to separate to remove copper; a neutralization step (S2) of adding a neutralizer or a carbonation agent to a cobalt chloride solution having undergone through the copper removal step (S1) and generating cobalt hydroxide or basic cobalt carbonate to separate magnesium; a leaching step (S3) of adding sulfuric acid to the cobalt hydroxide or the basic cobalt carbonate to obtain cobalt sulfate solution; and a solvent extraction step (S4) of bringing an organic solvent containing an alkyl phosphoric acid-based extractant to the cobalt sulfate solution and extracting zinc, manganese, and calcium into the organic solvent to separate to remove zinc, manganese, and calcium. These steps are sequentially executed.

This utility model discloses a timed liquid replenishment system for cobalt electrolytic deposition, configured in connection with an electrolytic cell. The system includes: a concentration tank, at least one concentration detection unit, a draining component, and a replenishment component. The concentration tank and electrolytic cell are spaced apart for temporary storage of cobalt chloride raw material. The concentration detection unit is built into and connected to the electrolytic cell to detect the concentration of the liquid within it. The draining component is connected to and communicates with the interior of the electrolytic cell to quantitatively drain the liquid. The replenishment component is connected to both the interior of the concentration tank and the interior of the electrolytic cell to quantitatively replenish cobalt chloride raw material. This utility model effectively solves the problem in the prior art where manual control during the replenishment of cobalt chloride solution to the electrolytic cell prevents automated production, thus reducing the yield of electrolytic cobalt.

This invention relates to a high-interfacial-wetting cathode material and its preparation method in the field of thermal battery technology. The material comprises a cathode active material and a halide cathode additive, wherein the halide cathode additive accounts for 5% to 20% by mass. The cathode active material is a sulfide cathode, including one or more of FeS2, CoS2, and NiS2. The halide cathode additive is a metal halide, including one or more of nickel chloride, cobalt chloride, nickel fluoride, and copper fluoride. This solution significantly reduces the interfacial impedance between the cathode and the electrolyte, improving power performance and discharge capacity.

This invention proposes a boron-phosphorus co-doped multi-element alloy catalyst supported on a metal oxide substrate, its preparation method, and its application. It belongs to the technical field of sodium borohydride hydrolysis hydrogen production materials. The method involves loading cobalt salts (such as cobalt chloride or cobalt nitrate), iron salts (such as ferric chloride or ferric nitrate), and hypophosphite (such as sodium hypophosphite) onto a support (such as γ-alumina or titanium dioxide) using an initial wet impregnation method. Sodium borohydride solution is added for chemical reduction, and boron is added for doping. After washing the reduction product, the catalyst is dried to obtain the supported boron-phosphorus co-doped multi-element alloy catalyst. When used as a sodium borohydride hydrolysis hydrogen production catalyst, it provides a maximum hydrogen production rate of 12729.78 mL·g under optimal conditions. cat ‑1 ·min ‑1 It produces 100% of the theoretical hydrogen yield and features good catalytic performance, simple preparation method, abundant raw materials, and low cost.

The application discloses a bubble-assisted benzalkonium chloride heterogeneous Fenton-like catalytic degradation method and belongs to the technical field of water treatment in environmental engineering. The method uses ferric nitrate, cobalt chloride, lanthanum nitrate and biochar as raw materials, synthesizes BC / LaFeCo-LDH through a hydrothermal method, uses the BC / LaFeCo-LDH as a heterogeneous Fenton-like catalyst, and is used for activating peroxymonosulfate. Meanwhile, a solid-liquid-gas heterogeneous Fenton-like catalytic system is constructed in combination with a hydrodynamic cavitation reactor. In the system, the exposure degree of benzalkonium chloride is increased by virtue of the bidirectional action of hydrophobic bubbles and the surface of hydrophilic catalysts, the activation rate of peroxymonosulfate is significantly improved, a large amount of singlet oxygen is generated, and the degradation efficiency and reaction rate of benzalkonium chloride are effectively improved. The method provides an effective way for green and efficient degradation of benzalkonium chloride.

This invention discloses a novel ion channel inhibitor and its synthesis process, belonging to the field of pharmaceutical preparation technology. The novel ion channel inhibitor and its synthesis process include: Step 1, injecting raw materials into a reaction vessel, injecting lithium hydroxide, injecting a tetrahydrofuran / water mixture, and refluxing to collect reactant A; Step 2, adding cobalt chloride to reactant A, drying dichloromethane, and refluxing to obtain reactant B. This novel ion channel inhibitor and its synthesis process have several advantages. First, the S-C bond is longer than the C-C bond, making it larger in size than adamantane. The three sulfur groups also possess a certain degree of spatial aromaticity, leading to better interaction with proteins. Preliminary experiments have shown that it may have an inhibitory effect 200 times stronger than adamantane. Second, the in vivo metabolism and environmental degradation rate of sulfur are much higher than that of hydrocarbons, therefore its toxicity and the induction of drug resistance are lower.

The utility model provides a kind of cobalt chloride and hydrochloric acid recovery device, the first import of pretreatment component is connected with the first export of raw material tank, and its first export is connected with raw material tank;The first import of membrane component is connected with the second export of pretreatment component;The first import of heat recovery component is connected with the first export of membrane component;The first import of evaporator is connected with the first export of heat recovery component, its first export is connected with the second import of heat recovery component, and its second export is connected with the third import of heat recovery component;The first import of cooling crystallizer is connected with the second export of heat recovery component;The first import of solid-liquid separator is connected with the first export of cooling crystallizer, and its first export is connected with the second import of cooling crystallizer.The utility model is concentrated after adopting pretreatment, nanofiltration membrane separation, reverse osmosis membrane component, removes hydrochloric acid, concentrates cobalt chloride, solution enters evaporation concentration, and then after cooling crystallization, high-purity cobalt chloride is obtained.

The application relates to the technical field of lithium battery recycling, and specifically discloses a method for recycling cobalt chloride hexahydrate from positive electrode materials of waste lithium batteries, which comprises the following steps: pre-removing aluminum, acid dissolving, chemically removing impurities, extracting and removing impurities, extracting and separating, and concentrating and crystallizing; the specific process of the acid dissolving is as follows: first, dilute sulfuric acid is used to dissolve the wet cobalt residue obtained by pre-removing aluminum to obtain a first liquid and a first waste residue; then, concentrated sulfuric acid is used to dissolve the first waste residue to obtain a second liquid and a second waste residue; the first liquid is directly concentrated to obtain a cobalt sulfate concentrated solution; the second liquid is used to dissolve new wet cobalt residue to realize recycling; and the second waste residue is treated and used as solid waste. The acid dissolving step is optimized, the method of multiple acidification is adopted, the loss rate of cobalt is reduced, the recycling of acid liquid is realized, and pollution discharge is reduced. Meanwhile, the acid dissolving step does not need to use sulfur dioxide, which is conducive to controlling the environmental pollution risk.

FIELD: biotechnology.SUBSTANCE: modified composition of a nutrient medium for inducing the formation of soybean regenerated plants in vitro, including ammonium nitrate (NH4NO3) – 1650 mg / l; potassium nitrate (KNO3) – 1900 mg / l; calcium chloride dihydrate (CaCl2×2H2O) – 440 mg / l; magnesium sulfate (MgSO4×7H2O) – 370 mg / l; potassium phosphate (KH2PO4) – 170 mg / l; disodium salt of ethylenediaminetetraacetic acid (Na2 EDTA) – 37.3 mg / l; ferrous sulfate (FeSO4×7H2O) – 27.95 mg / l; boric acid (H3VO3) – 6.2 mg / l; manganese sulfate (MnSO4×4H2O) – 22.3 mg / l; zinc sulfate (ZnSO4×H2O) – 8.6 mg / l; sodium molybdate (Na2MoO4×2H2O) – 0.25 mg / l; copper sulfate (CuSO4×5H2O) – 0.025 mg / l; thionyl chloride (CoCl2×H2O) – 0.025 mg / l; agar-agar – 7000 mg / l, according to the invention the following components are additionally introduced: glycine – 1.0 mg / l; mesoinositol – 120 mg / l; ascorbic acid – 3.0 mg / l; nicotinic acid – 1.0 mg / l; pyridoxine-HCl – 1.5 mg / l; thiamine-HCl – 1.0 mg / l; biotin – 0.03 mg / l; sucrose – 25000 mg / l; 6-BAP – 1.0 mg / l; indole-butyric acid (IBA) – 1.5 mg / l; starch – 9000 mg / l; activated carbon – 3.0 mg / l; water is the rest.EFFECT: expanding the range of nutrient medium compositions for inducing the formation of soybean regenerated plants in vitro.1 cl, 3 tbl

This invention belongs to the field of photocatalysis and discloses a hollow Cu 2‑x S@CuCo2S4 core-shell structured materials, their preparation methods, and applications. The above-mentioned hollow Cu... 2‑x S@CuCo2S4 core-shell structure material includes hollow Cu 2‑x S, and through hydrothermal reaction in hollow Cu 2‑x In-situ grown nanoflower CuCo2S4 layers on S. The preparation method includes: ultrasonically dispersing Cu2O in water, then adding Na2S·9H2O, and reacting to obtain Cu2O@Cu. 2‑x S; Cu2O@Cu 2‑x S acid etching yields hollow Cu 2‑x S; hollow Cu 2‑x S is dispersed in water, and cobalt chloride, copper chloride, thiourea, and ethylene glycol are added. After a hydrothermal reaction, hollow Cu is obtained. 2‑ x S@CuCo2S4 core-shell structured material. This core-shell material, when used as a photocatalyst in photocatalytic water splitting for hydrogen production, exhibits high hydrogen production capacity and good cycle stability.

This invention discloses a polyethersulfone (PES) ammonia separation membrane based on imidazolium-cobalt coordination synergy and its preparation method, comprising the following steps: using polyethersulfone as a raw material, it undergoes a chloromethylation reaction under anhydrous conditions to introduce a -CH2Cl active site into the aromatic ring side chain of polyethersulfone, thereby obtaining chloromethylated polyethersulfone; the chloromethylated polyethersulfone is subjected to a nucleophilic substitution reaction with an imidazolium compound to obtain imidazolium-functionalized polyethersulfone with chloride ions as the counter ion; and after membrane formation, the imidazolium-functionalized polyethersulfone membrane is immersed in a mixed solution of potassium thiocyanate and cobalt chloride, utilizing the in-situ formed cobalt thiocyanate coordination anion to counteract the chloride ion. ‑ By performing a displacement reaction, a polyethersulfone ammonia separation membrane based on imidazolium-cobalt coordination synergy is obtained. The polymer membrane obtained in this invention has a stronger selective dissolution and enhanced transfer capability for ammonia, and can achieve efficient and stable ammonia enrichment in the separation of ammonia-containing mixed gases.

The application provides a method for preparing high-purity cobalt, which comprises the following steps: diluting a cobalt chloride solution obtained after back extraction to obtain a diluted solution; performing extraction treatment on the diluted solution to obtain a first impurity-removed solution; performing oil removal treatment and resin heavy metal ion removal treatment on the first impurity-removed solution to obtain a second impurity-removed solution; performing electrodeposition on the second impurity-removed solution to obtain high-purity cobalt; wherein an anode in the electrodeposition process comprises an insoluble anode. The method for preparing high-purity cobalt provided by the application improves the product quality of cobalt through the synergistic cooperation of dilution-extraction-activated carbon oil removal-resin heavy metal ion removal-insoluble anode electrodeposition, obtains high-purity cobalt with low impurity content, and has simple preparation process and lower cost.

This application belongs to the field of hydrometallurgical technology, specifically relating to a method for synergistic treatment of high-phosphorus cobalt chloride solution based on polyferric chloride and cobalt carbonate, comprising the following steps: S1, obtaining a high-phosphorus cobalt chloride solution, polyferric chloride, and cobalt carbonate; adding the polyferric chloride to the high-phosphorus cobalt chloride solution and mixing to obtain a first mixture; S2, adding the cobalt carbonate to the first mixture and mixing to obtain a second mixture, the pH of the second mixture being 4.1-4.5; S3, stirring the second mixture and performing solid-liquid separation to obtain a low-phosphorus cobalt chloride solution and ferric phosphate slag. This application achieves the dual objectives of efficient separation of phosphorus and cobalt and resource utilization of phosphorus and cobalt through the synergistic treatment of high-phosphorus cobalt chloride solution by polyferric chloride and cobalt carbonate.

This invention discloses a substituted heteropolyacid catalyst, its preparation method, and its application. This invention utilizes H3PW... 12 O 40 The potassium salt of the vacancy-deficient heteropolyacid K7PW was obtained by mixing KCl with ultrapure water, adjusting the pH to 5.5, filtering to remove insoluble matter, and drying. 11 O 39 ; K7PW 11 O 39 Dissolved in ultrapure water, 0.035 g / mL cobalt chloride solution was added dropwise at 80°C with stirring until the reaction was complete. The reaction product was cooled and filtered to remove insoluble matter. The resulting filtrate was added to a mixed solution of methanol and ethanol, and stirring was continued until precipitation was complete. The resulting filtrate was then precipitated, washed, dried, ground, and collected to obtain the substituted heteropolyacid potassium salt K5PW. 11 CoO 39 K5PW 11 CoO 39 Potassium ions were replaced with hydrogen ions via ion exchange, and the resulting product was collected after drying and grinding to obtain the substituted heteropolyacid catalyst H5PW. 11 CoO 39 This invention, H5PW 11 CoO 39 It can efficiently promote furfural transfer and synthesize isopropyl levulinate under mild conditions without the need to separate intermediate products in the reaction system, making it more environmentally friendly, lower cost and more efficient.

This invention belongs to the field of magnetic functional materials technology, specifically relating to an amorphous nanocrystalline ribbon and its preparation method. The amorphous nanocrystalline ribbon is composed of the following raw materials in the indicated mass percentages: Nb 5.6-6.5 wt%, Si 9.5-10.5 wt%, B 1-2 wt%, Cu 0.5-1 wt%, Co 0.1-0.2 wt%, Zr 0.05-0.1 wt%, rare earth elements 0.4-1.5 wt%, high-entropy oxide 0.5-1.0 wt%, with the balance being Fe. The high-entropy oxide is prepared by adding ferric chloride, cobalt chloride, nickel chloride, manganese chloride, and scandium chloride to diethylene glycol, heating and stirring under sealed conditions, followed by centrifugation, washing, drying, and calcination to obtain the high-entropy oxide. The amorphous nanocrystalline ribbon prepared by this invention exhibits high magnetic permeability, low coercivity, and high stability within the temperature range of -40℃ to +150℃.

The present application relates to the field of electrocatalysis, and provides a cobalt-based catalyst for electrocatalytic two-electron oxygen reduction and a preparation method thereof. Cobalt chloride hexahydrate, sodium dithionite and sodium citrate are used as reaction raw materials to synthesize Co@PBA precursor by a coprecipitation method; after washing and drying, the Co@PBA precursor is subjected to high-temperature calcination and then acid washing to obtain a cobalt-doped PBA derivative catalyst Co@PBA-750. The Co@PBA-750 precursor is synthesized by the coprecipitation method, and the cobalt-doped PBA derivative catalyst is prepared by high-temperature calcination and acid washing, which utilizes the unique metal-organic framework characteristics of PBA to in-situ convert into a nitrogen-doped carbon composite material with uniformly dispersed cobalt species during pyrolysis; the coprecipitation method with slow drop is used, and sodium citrate is used as a complexing agent and a morphology stabilizer to effectively control the nucleation and growth rate of the precursor and inhibit particle agglomeration, so that the Co@PBA-750 nanospheres with uniform size and good dispersion are synthesized.

This invention belongs to the interdisciplinary field of stem cell biology and ophthalmic treatment, and relates to a method for preparing exosomes from human umbilical cord mesenchymal stem cells (hUC-MSCs) induced by cobalt chloride and their application in the treatment of dry eye. The method for preparing exosomes from hUC-MSCs induced by cobalt chloride includes the following steps: S1: Obtaining human umbilical cord mesenchymal stem cells. S2: Under normoxic conditions, adding the hUC-MSCs obtained in step S1 to a culture medium containing cobalt chloride, followed by induction culture for 2-10 hours. S3: Performing ultracentrifugation on the cell culture medium obtained in step S2 to obtain hUC-MSC exosomes. This invention, by culturing hUC-MSCs under normoxic conditions with cobalt chloride, can quickly and efficiently increase the content of miRNA-21-5p and TGF-β in exosomes, without requiring hypoxia equipment, resulting in low cost, simple operation, and exosome activity fluctuation ≤10%, significantly improving preparation efficiency and stability. Drugs prepared from the exosomes obtained by this invention have excellent effects in treating dry eye and have promising application prospects.

The invention discloses a nano composite material and a preparation method and application thereof, the preparation method comprises the following steps: carrying out heating reaction on cobalt chloride hexahydrate, nickel chloride hexahydrate and urea to obtain NiCo2O4 solid powder; the preparation method comprises the following steps: grinding purple phosphorus, adding the ground purple phosphorus into absolute ethyl alcohol, carrying out ultrasonic crushing treatment, centrifugally collecting supernate, centrifugally collecting precipitate, drying and resuspending to obtain purple phosphorus nanosheet dispersion liquid; the preparation method comprises the following steps: adding rhenium disulfide nano-particles into pyrrolidone, carrying out ultrasonic crushing treatment, centrifuging, and collecting supernate, so as to obtain rhenium disulfide quantum dot dispersion liquid; niCo2O4 solid powder is added into absolute ethyl alcohol, the purple phosphorus nanosheet dispersion liquid and the rhenium disulfide quantum dot dispersion liquid are sequentially added, stirring continues for a period of time, and freeze drying is conducted; according to the nano composite material, VP NSs and ReS2 QDs are deposited on the surface of NiCo2O4, and under the synergistic effect of VP NSs and ReS2 QDs, the photocatalytic activity, the stability and the recycling performance of the composite material are effectively improved.