37results about How to "Achieve deep separation" patented technology

The invention discloses oil-water separating device and method. The oil-water separating device comprises a swirler and a horizontal type agglutinating oil-water separator, wherein a bottom flow pipe of the swirler is in a U shape; the horizontal type agglutinating oil-water separator has the liquid uniform distributing function; an inlet liquid distributor, a rectifying sieve plate, a stainless steel plate ripple filler, a polypropylene gauze ripple filler, an outlet liquid collector, and the like are sequentially arranged in the horizontal type agglutinating oil-water separator, and the stainless steel plate ripple filler and the polypropylene gauze ripple filler are fixed by a limit grid plate; the U-shaped bottom flow pipe of the swirler and a filter screen arranged in the swirler canfilter a small number of solid impurities contained in liquid so as to prevent the blockage of agglutinated fillers; the inlet liquid distributor and the outlet liquid collector ensure that the liquid is uniformly distributed; the rectifying sieve plate reduces the flow rate of the liquid to form lamellar flow; the stainless steel plate ripple filler provides a place for agglutinating and separating oil drops; and the polypropylene gauze ripple filler with an air floating device can further agglutinate and separate residual fine oil drops. The combination simultaneously has the effects of whirl, agglutination and air floatation and can realize the deep separation of oil and water.

The invention discloses a method for extracting-water-splitting and separating antimony and iron in an antimony-iron mixed solution, belonging to the field of non-ferrous metal metallurgy. The method firstly uses iron powder to reduce high-valent antimony iron ions in an antimony-iron mixed solution to a low-valent iron Divalent iron ion and trivalent antimony ion are filtered and separated to obtain low-valent antimony iron solution, and then use quaternary ammonium salt extractant to extract and separate antimony from it, to obtain antimony-rich organic phase and ferrous raffinate, the latter can be directly opened; The antimony-rich organic phase does not carry out back extraction, but is directly water-decomposed to generate antimony oxychloride, and at the same time, the quaternary ammonium salt extractant is regenerated. The method realizes the separation problem of antimony and iron through valence adjustment and extraction process, and the separation of antimony and iron is complete; and the innovative water splitting step is used to directly complete the dissociation of antimony, which cancels the traditional stripping process and obtains antimony products in one step. and regeneration extraction agent, simplifying the process, reducing the consumption of reagents, and solving the problem of separation and separate utilization of antimony iron solution in the antimony hydrometallurgy process.

The invention relates to a method for deeply separating molybdenum and vanadium in a solution containing the molybdenum and the vanadium. The method includes: regulating the acidity [H<+>] of the solution containing the molybdenum and the vanadium to be 0.0003-10mol / L, and then using the compound of Mo(IV) or / and Mo(V) as the reducing agent to selectively reduce the vanadium in the solution to obtain liquid after reduction; regulating the pH of the liquid after reduction to be 4-7, settling the vanadium, and using an ion exchanging method or extraction method to enrich the molybdenum; or regulating the pH of the liquid after reduction to be 2-4, using an ion exchanging method or extraction method to enrich the molybdenum, then regulating the pH to 4-7, and settling the vanadium. The method has the advantages that the E<0>Mo(VI) / Mo(V) and E<0>V(V) / V(IV) potential differences under an acidic condition are utilized, the compound of Mo(IV) or / and Mo(V) as the reducing agent to selectively reduce the V(V) in the solution into V(IV), and the maximum differentiation of the properties of the molybdenum and the vanadium in the solution is achieved; the property that anion exchange resin or basic extractant can only selectively enrich the Mo(VI) in the solution and cannot absorb the V(IV) is utilized to deeply separate the molybdenum and the vanadium; the method is simple in process, short in process flow, convenient to operate, good in molybdenum-vanadium separation effect, low in treatment cost, environmental friendly, suitable for industrial application, and the like.

The present invention relates to the separation and purification method of by-product sodium chloride in the production process of betaine / betaine hydrochloride, comprising reaction mother liquor pretreatment, preliminary separation of crude betaine and sodium chloride, secondary purification separation and betaine merging and purification, Combined with sodium chloride for purification and refining. According to the method of the invention, it is suitable for industrial large-scale separation and purification, does not need to go through procedures such as electrodialysis, and has higher economy and environmental protection. The purified sodium chloride can reach the feed grade standard, realize the recovery and utilization of by-products, and the treatment method is simple without secondary pollution.

The invention relates to the field of comprehensive utilization of solid waste resources in iron and steel plants, in particular to a method for preparing zinc oxide by wet treatment of zinc-containing smoke and dust in iron and steel plants. Selectively leaching the valuable metals Zn, Pb and Cd in the zinc-containing fumes of iron and steel plants in weak alkaline amino acetate aqueous solution, the leaching solution is reduced and purified with zinc powder to obtain lead and cadmium slag; the purified leaching solution is purified with CaO or Ca(OH )2 carry out alkali adjustment and zinc precipitation to obtain crude zinc oxide, and after the crude zinc oxide is washed with water to remove residual Ca(OH)2, the finished product zinc oxide is obtained after drying; Regeneration, the regenerated leaching agent can be directly returned to leaching. The invention is easy to operate and has a mild leaching system; the aqueous solution of the complexing agent used can be regenerated during the treatment process; it can treat zinc-containing fumes with high iron content and realize the deep separation of iron and zinc; it can effectively remove poisonous zinc-containing fumes from iron and steel plants Heavy metal elements Zn, Pb and Cd can be used to prepare high value-added ZnO products and effectively enrich the valuable metals lead and cadmium.

The present invention relates to the technical field of oil sludge separation equipment, in particular to oil sludge separation equipment for oil fields based on oil sludge treatment and a separation method thereof, including a shell, a separation tank, a feed grinding assembly, an oil sludge separation structure, an oscillation separation structure, and a deflection protection Universal ball, vibration and stable structure, telescopic oil nozzle assembly, evaporation box and transmission switch assembly; the present invention realizes the deep layer of sludge through grinding large particles of sludge, high-speed stirring and mixing, low-speed stirring and separation, vibration separation and collection and recovery. Separation makes the sludge layered and separated more thoroughly, the operation of the equipment is simpler, and the separation of the sludge is more efficient, which solves the problem that the traditional equipment can only remove the sludge on the surface by calcination and evaporation, and the efficiency is low.

The invention provides a method and system for recovering main and associated elements from copper-nickel sulfide ore, the method comprising: 1) continuously adding low-matte and leaching reaction solution into the reaction bottom liquid, selectively leaching, and collecting hydrogen sulfide Gas, the first leaching solution and the first leaching slag, wherein the leaching reaction solution is sulfuric acid with a mass fraction of 60%-95%; 2) adding water to the first leaching slag for dissolution, and collecting the second leaching solution and the second leaching slag; 3) removing iron from the second leaching solution, collecting the iron-removing solution and iron-removing slag, the iron-removing solution is used for the extraction of nickel and cobalt, and the iron-removing slag is used for ironmaking; and / or, sending the second leaching slag to copper The smelting device smelts to obtain copper and precious metals respectively. The method proposed by the invention can realize the deep separation of nickel and copper, and effectively realize the recovery of nickel, copper, cobalt, precious metals and sulfur. The invention has simple process, short process and high efficiency, is a clean and efficient element recovery process, and is easy for large-scale industrial production.