31results about How to "Loose process conditions" patented technology

The invention relates to a method for extracting precious metal from a disabled auto-exhaust catalyst, which comprises the following steps: 1. lixiviating precious metal from the disabled auto-exhaustThe invention relates to a method for extracting precious metal from a disabled auto-exhaust catalyst, which comprises the following steps: 1. lixiviating precious metal from the disabled auto-exhaust1g / t and the product purity reaches 99.95 percent.than 1g / t and the product purity reaches 99.95 percent.catalyst by a hydrometallurgy process and obtaining precious metal concentrates after permuting lixivium; 2. lixiviating slag, collecting precious metal of the slag by a pyrometallurgy process to obt catalyst by a hydrometallurgy process and obtaining precious metal concentrates after permuting lixivium; 2. lixiviating slag, collecting precious metal of the slag by a pyrometallurgy process to obtain a precious metal phase and selectively lixiviating base metal in the precious metal phase to obtain precious metal concentrates; and 3 combining the precious metal concentrates obtained in the firain a precious metal phase and selectively lixiviating base metal in the precious metal phase to obtain precious metal concentrates; and 3 combining the precious metal concentrates obtained in the first two steps and refining the precious metal concentrates to produce platinum, palladium and rhodium products. The invention compensates the deficiency that the percent recovery of the precious metalst two steps and refining the precious metal concentrates to produce platinum, palladium and rhodium products. The invention compensates the deficiency that the percent recovery of the precious metalis low by simply treating the disabled auto-exhaust catalyst with the hydrometallurgy process and has the advantages that the contents of platinum, palladium and rhodium in the waste slag are smalleris low by simply treating the disabled auto-exhaust catalyst with the hydrometallurgy process and has the advantages that the contents of platinum, palladium and rhodium in the waste slag are smallerthan

The invention provides an ablation manufacturing method of a metastable-state high-magnesium MgZnO solid solution alloy film, and belongs to the technical field of optical functional materials. In the prior art, the doping amount of Mg is generally smaller than 0.33. The ablation manufacturing method of the metastable-state high-magnesium MgZnO solid solution alloy film belongs to a Sol-Gel method, and is characterized by comprising the following steps: determining the value of x in MgxZn1-xO as follows: 0.25<=x<=0.75, determining the mole ratio of zinc acetate to magnesium acetate according to the value of x, dissolving the zinc acetate and the magnesium acetate in an organic solvent, adding ethanol amine of which the amount is equal to the amount of zinc ions and the amount of magnesium ions, and stirring to obtain a sol solution; spin-coating a substrate with the sol solution, and carrying out low-temperature heat treatment to obtain a gel film; and ablating the gel film by using laser to obtain the metastable-state high-magnesium MgZnO solid solution alloy film, wherein laser power is 5-30 W, the ablation time is 1-1,000 seconds, and the distance between a light outlet of a laser light source and the gel film is 1-50 cm.

A method for continuously extracting and separating 1-deoxynojirimycin (DNJ) and flavonoids from mulberry leaves, the main points of the method are: extracting after mixing mulberry leaves and ethanol, centrifuging and filtering, adding a flocculant to flocculate and precipitate after concentrating; removing the precipitate Finally, the filtrate is added to a plurality of connected cation exchange resin columns, and flows through the macroporous adsorption resin column connected in series with the resin column; after the filtrate is added, it is washed with pure water until the macroporous resin column effluent is colorless. It is disconnected, and then eluted 1-deoxynojirimycin (DNJ) from the cationic resin column with ammonia water or ammonia-containing ethanol solution; Concentrate and filter with a filter membrane, and then spray dry to obtain 1-deoxynojirimycin (DNJ) in the form of brown yellow powder. Wash the macroporous resin column with 3%-10% ethanol to remove colloidal impurities, then elute flavonoids with 50%-70% ethanol, collect the brown-red eluate, concentrate under reduced pressure to recover ethanol, and then spray dry to obtain yellow-brown Powdered total flavonoids of mulberry leaves.