10 results about "Palladium ion" patented technology

The application provides a palladium ion extractant material and a preparation method thereof, and the pyridine-oxadiazole ligand is used as the extractant, most Pd 2+ in the aqueous phase can be extracted into the organic phase in a short time, and has a very high extraction rate; selective extraction separation of Pd 2+ under acidic conditions can be realized, the applicable range of acidity is wide, and excellent extraction capacity is achieved in the range of 0.2-4M nitric acid concentration; the extractant has excellent selectivity to Pd 2+ in the aqueous phase containing various metal ions; the pyridine-oxadiazole extractant has a good application prospect in the separation and recovery of Pd 2+ in high-level radioactive waste; the m-nitro-trifluorotoluene is used as a diluent of the extraction system, has good solubility to the organic ligand and the extractant, and the 2-bromohexanoic acid can increase the lipophilicity of the extractant.

The application discloses a palladium ion recovery device and relates to the field of metal recovery technology, which comprises a filtering device and a resin exchange device, a liquid conveying pipe one is arranged between the filtering device and the resin exchange device, the liquid conveying pipe one is provided with a water pump, a feeding device is arranged on the resin exchange device, the resin exchange device comprises an exchange box, a plurality of storage baskets and a plurality of water permeable plates, a plurality of through openings one are formed in the lateral side of the exchange box, the storage baskets and the water permeable plates are in one-to-one correspondence and are all located in the exchange box, the water permeable plates are located below the storage baskets and are attached to the storage baskets, the lower end of the storage basket is provided with a through opening two, the water permeable plates are fixedly connected to the inner side of the exchange box and are arranged horizontally, the storage baskets are slidably connected with the water permeable plates along the lateral direction, a same supporting plate is fixedly arranged on the side of the plurality of storage baskets close to the through opening one, and a moving piece is arranged on the outer side of the exchange box and used for driving the supporting plate to move. The application has the effect of improving the convenience of resin replacement.

The invention discloses a naphthalimide fluorescent dye as well as a preparation method and application thereof, and relates to the technical field of fluorescent dyes, a naphthalimide compound is taken as a two-photon fluorescent substrate, a palladium ion recognition group is introduced through chemical reaction, so that fluorescence of the compound is quenched, and the naphthalimide fluorescent dye is obtained; the naphthalimide fluorescent dye can generate a specific reaction after recognizing palladium ions, so that fluorescence is enhanced, and fluorescence emission with the wavelength of 460 nm is generated in an excitation state with the wavelength of 360 nm; by utilizing the opening characteristic, a powerful detection tool is provided for controlling the content of palladium ions in raw material medicines and chemical intermediates.

To separate palladium ions from a solution containing plural kinds of metal ions at a high speed with high selectivity.SOLUTION: The method for separating Pd ions is a method for selectively separating Pd ions from a solution containing a plurality of kinds of metal ions including at least Pd ions. The method for separating Pd ions includes a sorption step of electrochemically depositing and sorbing Pd on the surface of a thin film 12 by applying a reduction potential to a base material 11 in a state where a sorption body 10 having the base material 11 formed of a conductive material and the thin film 12 formed of Prussian blue (PB) and covering the surface of the base material 11 is immersed in a solution.SELECTED DRAWING: Figure 1

The present application relates to a kind of high-efficiency enrichment porous COF adsorbent of palladium and its preparation method and application, belong to composite material technical field.The high-efficiency enrichment porous COF adsorbent of palladium of the present application is recorded as COF-BcTd, and is generated by 1,3,5-benzene triformyl chloride and 1,3,4-thiadiazole-2,5 diamine acylation reaction, its structural formula is:the high-efficiency enrichment porous COF adsorbent of palladium can be used to efficiently and selectively adsorb enrichment palladium ion from solution, and has strong cyclic regeneration capacity.

The application discloses a kind of nanometer materials for detecting tea polyphenols and ascorbic acid by spectrophotometry, and belongs to the field of chemical analysis.The nanometer material is prepared by the following method: first, using microbial matter as adsorbent to adsorb palladium ions in palladium ion solution, second, using filter membrane with pore size of 0.22 μm or 0.45 μm to separate the microbial matter adsorbing palladium ions, then adding reducing agent dropwise into deionized water suspending the microbial matter to reduce, and obtaining palladium nanometer material after cleaning.The prepared nanometer material is used for detecting the concentration of tea polyphenols and ascorbic acid by spectrophotometry, has good stability, is simple to operate, does not need to rely on complex instruments such as high performance liquid chromatography, and reduces the error of determining reaction end point by naked eye in titration method.

The present application relates to the technical field of palladium separation, and discloses a method for adsorbing and separating palladium ions from an acidic aqueous phase. A nitrogen-containing soft ligand as shown in formula I is loaded on a macroporous resin carrier to obtain a binary composite material, wherein R1 is a phenyl group or a substituted phenyl group, and R2 is an alkyl group or an aromatic group of C 1‑10 The binary composite material is mixed with an acidic aqueous solution containing palladium ions and other metal ions, and palladium ions are efficiently adsorbed and separated therefrom. The composite material of the present application can adsorb and separate palladium ions from an aqueous phase containing various metal ions, has good selectivity, fast adsorption speed, an adsorption rate of more than 85% and up to 97.4%, good separation effect, and the method is simple and easy to industrialize.

The application relates to a preparation method and application of a pyridine / amidoxime composite adsorbent. The application aims to solve the technical problems of poor structural stability, low adsorption capacity and poor selectivity of the current amidoxime-based adsorbent in a strong acid system. The prepared pyridine / amidoxime composite adsorbent is applied to capture gold ions and palladium ions in acid leaching solution. The application successfully constructs two kinds of composite adsorbents with excellent acid resistance by synchronously introducing pyridine amidoxime monomers at different sites on the dopamine-assisted graphene oxide surface. The two kinds of adsorbents respectively exhibit high-efficiency selective adsorption performance on gold ions and palladium ions under strong acid conditions. The prepared adsorbent can be applied to gradient recovery of gold and palladium in waste printed circuit board acid leaching solution, electroplating waste liquid and mining leaching solution.

The invention belongs to the technical field of PCB manufacturing, and discloses a manufacturing method of a PCB made of a high-thermal-conductivity material and the PCB. According to the manufacturing method, a Core press-fit manufacturing scheme is adopted, and daughter boards L1-L2 are manufactured through a milling step of milling the position of a ceramic volume processing area; manufacturing daughter boards L3-L4 through a milling step of milling the position of a ceramic volume processing area; pP manufacturing is carried out; the manufactured daughter boards L1-L2, the manufactured daughter boards L3-L4 and the manufactured PP are laminated with the mother board, and the PCB made of the high-heat-conduction material is manufactured. According to the invention, a Core press-fit manufacturing scheme is used, so that the matching problem of processing of different materials is solved. Laminating flatness is ensured, and the problem that product reliability is affected due to wire breakage and the like when wires pass through is avoided. And meanwhile, a corresponding process is added in the process to remove surface metal palladium ions so as to avoid a short-circuit phenomenon during chemical gold plating. The processing difficulty is reduced, and the yield is improved.

This invention relates to the field of ionic palladium activation solution technology, and discloses an ionic palladium activation solution for electroless copper plating and its preparation method. The ionic palladium activation solution comprises palladium sulfate, carbon nanoparticles, emulsifier, stabilizer, pH adjuster, and deionized water. This invention uses carbon nanoparticles instead of traditional complexing agents, which have a large specific surface area, strong adsorption performance, and numerous active sites, enabling the adsorption of more palladium ions and stronger adhesion to the substrate, thereby achieving a better activation effect and improving the backlighting effect and adhesion of the electroless copper plating layer.