4results about How to "Dissolve completely" patented technology

The application discloses a method for digesting and separating fluorinated aluminum by program, which comprises the following steps: placing a catalyst with metal elements supported on alumina as a carrier into a reaction container of a cluster digestion device, adding hydrochloric acid and / or nitric acid, setting a digestion program, introducing inert gas for pre-pressurization, performing primary digestion, and simultaneously starting a condensation reflux atomizer; after the program is completed, adding hydrofluoric acid, setting a digestion program, and performing secondary digestion; after the digestion is completed, entering a cooling and crystallization program, performing cooling and crystallization, and separating to obtain a sample solution to be detected and a solid; the solid is dried and calcined to obtain fluorinated aluminum crystals, and the liquid is used for detecting the content of metal elements. The method is applied to the digestion treatment of the alumina sample with metal elements supported thereon, has a large sample treatment range, complete digestion, no volatile loss of elements, and can separate AlF3 in an alpha crystal form through the program digestion of the digestion device.

The utility model relates to the technical fields of defatting agent auxiliary equipment more specifically, relate to a kind of stirring device and defatting agent automatic adding equipment, including dosing bucket and stirring mechanism, still including baffle, telescopic link, plugging block and float, baffle is located in dosing bucket, baffle will inside dosing bucket by from top to bottom sequentially separated into feeding space and stirring space, powder inlet is located in feeding space, water inlet and liquid outlet are located in stirring space, telescopic link is slidably connected with baffle, plugging block is located in the upper end of telescopic link, float is located in the lower end of telescopic link, baffle is equipped with the powder outlet that can be blocked by plugging block.The utility model is through setting telescopic link, float and plugging block, powder outlet is blocked when adding water, after adding enough water, defatting powder is added to dissolve, avoid clumping, ensure that dissolving is completely, save stirring time and energy.

This invention discloses a system for purifying sodium pyrophosphate containing metallic impurities to produce disodium hydrogen phosphate, belonging to the field of waste treatment technology. The system includes a dissolving vessel equipped with a crude sodium pyrophosphate inlet pipe, a first water inlet pipe, and a first discharge pipe. The first discharge pipe is connected to a photocatalytic reaction device, which is connected to an electrochemical device. The electrochemical device is connected to a hydrolysis vessel via a reaction liquid outlet pipe. The hydrolysis vessel is equipped with a second water inlet pipe, a catalyst inlet pipe, and a second discharge pipe. The second discharge pipe is connected to a crystallizer, which is connected to a first filter, which is connected to an oven. This invention can obtain high-purity disodium hydrogen phosphate.

This invention discloses a method and product for purifying low-impurity quartz sand, relating to the field of quartz sand purification technology. The method includes: Step 1: Crushing and screening to obtain pretreated pure quartz sand; Step 2: Calcination-water quenching to obtain lattice-activated quartz sand; Step 3: Magnetic separation to obtain deeply purified quartz sand; Step 4: Ultrasonic-flotation synergistic treatment to obtain purified quartz sand; Step 5: Pressure acid leaching to obtain deeply purified quartz sand; Step 6: High-temperature chlorination and inert atmosphere cooling to obtain chlorinated purified quartz sand; Step 7: Dehydroxylation treatment to obtain dehydroxylated quartz sand; Step 8: Plasma purification to obtain a low-impurity quartz sand product with a purity ≥99.9999%. In this invention, pressure acid leaching directly acts on the surface and inside microcracks, allowing for faster acid penetration and more thorough dissolution. This synergistic effect of flotation and acid leaching increases the product purity from 99.78% to over 99.9999% with the same acid consumption.