6results about How to "Achieve deep separation" patented technology

The application relates to a method for removing iron from aluminum electrolysis high-iron waste residue, and belongs to the technical field of solid waste resource recovery. The method comprises the following steps: finely grinding aluminum electrolysis high-iron waste residue to obtain aluminum electrolysis high-iron waste residue powder; mixing the aluminum electrolysis high-iron waste residue powder with water to obtain slurry; mixing and stirring the slurry with polyethylene glycol to obtain mixed slurry; and performing multi-stage centrifugal separation on the mixed slurry to obtain high-iron residue and high-carbon residue. The separated high-carbon residue meets the quality requirements for returning to an electrolysis process, the obtained high-iron residue is recovered as a byproduct, and finally the iron and carbon in the aluminum electrolysis high-iron waste residue are recycled and utilized as resources.

This invention discloses a process for recovering germanium from germanium-silicon alloy waste, belonging to the field of germanium recovery technology. The process includes the following steps: S1. Oxidizing and roasting the germanium-silicon alloy waste to obtain roasted clinker; S2. Sulfidating and fixing the roasted clinker and pyrite to obtain activated clinker; S3. Leaching the activated clinker with sulfuric acid, followed by solid-liquid separation, and collecting the germanium-containing leachate; S4. Performing multi-stage countercurrent extraction on the germanium-containing leachate using an amine extractant to obtain a loaded organic phase; then back-extracting the loaded organic phase with an alkaline back-extraction solution to obtain a germanate solution; S5. Hydrolyzing and precipitating the germanate solution to obtain pure germanium dioxide. The roasting process of this invention fixes impurities and activates elemental germanium into soluble germanium dioxide. The purification stage efficiently separates germanium from other impurity ions, and the final hydrolysis precipitation controls product consistency. This invention's recovery process has high recovery efficiency and purity, is more environmentally friendly, and is expected to achieve large-scale production.

The utility model relates to crude oil separation technical field, concretely relates to a crude oil high frequency demulsification separation device, include: feed system, feed system includes mixing tank, one side of feed system is provided with high frequency demulsification unit, high frequency demulsification unit includes demulsification tank, the top fixedly connected with high frequency power supply of demulsification tank, the inside of demulsification tank is provided with electrode plate, the other side of high frequency demulsification unit is provided with gravity separation unit, gravity separation unit includes gravity sedimentation tank, the inside even fixedly connected with a plurality of inclined plate of gravity sedimentation tank, the other side of gravity separation unit is provided with cyclone separation unit, and cyclone separation unit includes cyclone separator, through the setting of high frequency demulsification unit, gravity separation unit and cyclone separation unit, can quickly destroy crude oil emulsification structure, improve demulsification efficiency, combine gravity sedimentation and cyclone separation technology, realize the depth separation of crude oil, water and impurity, and further greatly improved the separation effect.

The present application relates to a kind of methods for separating vanadium and arsenic, phosphorus, silicon from vanadium-containing solution.The separation method of the present application comprises the following steps: (1) after the vanadium-containing solution is cooled and crystallized, adjust pH and add crystallization promoter, after stirring reaction, solid-liquid separation is obtained, and mixed salt and vanadium-containing impurity removal liquid is obtained;Vanadium-containing impurity removal liquid is added to concentrated sulfuric acid to adjust pH, after heat preservation reaction, solid-liquid separation is obtained, and dihydrogen tetrasodium decavanadate and acid precipitation mother liquor are obtained; (2) dihydrogen tetrasodium decavanadate is dissolved in water, sodium hydroxide is added to adjust pH, and ammonium salt is added, and after solid-liquid separation and washing, ammonium metavanadate is obtained;Vanadium-containing solution is sodium metavanadate solution, and the impurities in sodium metavanadate solution include phosphorus element, arsenic element and silicon element.The process of the present application is simple, the reaction conditions are mild, high-purity ammonium metavanadate is prepared, vanadium and phosphorus, arsenic, silicon and other impurity elements are deeply separated, sodium sulfate is recycled, the investment of equipment is low, the economic benefit is good, the environment is friendly, and it is suitable for industrial large-scale application.

This invention discloses a method for separating vanadium and chromium in a vanadium-chromium solution, belonging to the field of wet separation of vanadium-chromium solutions. This method addresses the problem that existing technologies cannot achieve deep separation of vanadium and chromium. The method first adds a reducing agent to the vanadium-chromium solution, converting the highly soluble hexavalent chromate anion into a lower valence state, easily precipitated Cr. 3+ Cations, then add Mn 2+ The chromium removal agent efficiently precipitates trivalent chromium ions from vanadium-containing solutions, achieving deep separation of vanadium and chromium in the liquid phase. Compared with traditional chemical precipitation methods, the vanadium-chromium separation method of this invention has advantages such as high separation coefficient, simple and easy-to-use process, low equipment requirements, convenient operation, and suitability for industrial production.

The invention belongs to the technical field of filtering devices, and discloses a filtering device for water-based paint production, the filtering device comprises a metal separation mechanism, a multi-stage filtering mechanism and a cleaning mechanism, an inclined U-shaped trough is arranged in a separation box of the metal separation mechanism, the U-shaped trough rotates around a rotating shaft in a reciprocating manner, and an electromagnetic wire is mounted at the outer bottom of the U-shaped trough and can adsorb, dump and separate metal impurities; double groups of moving bins are slidably mounted in a filter box of the multi-stage filter mechanism, multi-stage filter plates are obliquely arranged in the moving bins to realize graded filtration of coatings, discharge pipes and water nozzles corresponding to the filter plates are arranged in double cleaning boxes of the cleaning mechanism, the moving bins are driven by telescopic cylinders to switch to realize online cleaning of the filter plates, and the double moving bins and the double cleaning boxes alternately work to guarantee production continuity. The water-based paint filtering device integrally forms an integrated structure, can realize separation and graded filtration of metal impurities and online cleaning of the filter plate, does not need shutdown disassembly, improves the water-based paint filtering efficiency, and is convenient to maintain.