6 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.

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 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.

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.