44results about How to "Realize flotation separation" patented technology

The invention discloses a charged magnetic hydrophobic material and a preparation method and application thereof in separation of micro-fine-particle minerals. The material includes magnetic particlesand a metal organic complex loaded on the surface, has strong magnetism, is positively charged on the surface, and has high electrostatic adsorption capacity for anions and high physical adsorption performance for hydrophobic micro-fine-particle minerals, and therefore, after micro-fine-particle minerals in ore pulp are subjected to surface hydrophobic and anion modification, the micro-fine-particle minerals can be adsorbed and agglomerated by utilizing the material, then the micro-fine-particle minerals are efficiently separated from gangue minerals through magnetic separation, thus solvinga difficult problem of separation and purification of ultrafine minerals. A preparation process of the charged magnetic hydrophobic material is simple and cheap and meets industrial production requirements.

The invention discloses a method for performing phosphate ore flotation magnesium removal by using a chelating inhibitor PBTCA, and belongs to the field of salt mineral flotation separation. Accordingto the method, water is added for size mixing and the pH value is adjusted, then a chelating inhibitor PBTCA (2-phosphonobutane-1, 2, 4-tricarboxylic acid) is added, direct flotation is carried out to remove magnesium, and the obtained flotation product is dried to obtain low-magnesium phosphate concentrate, wherein the P2O5 recovery rate is 77.54-84.31 percent by weight, and the removal rate ofMgO in the low-magnesium phosphate concentrate is 74.06-83.08 percent by weight. According to the method, the chelating inhibitor PBTCA is added to selectively inhibit dolomite flotation, so that thedifference between the flotation performance of apatite and the flotation performance of dolomite is enlarged, and effective separation of apatite and dolomite is achieved through a direct flotation method. In addition, the chelating inhibitor PBTCA has the advantages of being biodegradable, non-toxic, high in selectivity, low in cost and easy to obtain commercially, and the purpose of high-magnesium low-grade phosphate ore flotation magnesium removal can be achieved.

The invention relates to an alkylate waste sulfuric acid resourceful treatment device and method. The device is composed of a reaction flotation tower, a crystallizer, a heat exchanger, a mother solution circulation pump, a condensate pump and connecting pipelines between the components. Alkylate waste sulfuric acid and ammonia gas serve as inlet materials of the reaction flotation tower, and a high-temperature and high-pressure ammonium sulfate mother solution generated at the bottom of the tower enters a crystallizer; low-pressure steam generated by the reaction flotation tower is extracted from the top of the tower and enters an outer jacket of the crystallizer; polymerization oil in the alkylate waste sulfuric acid is subjected to floatation and extraction in reaction and floatation integrated equipment to obtain polymerization oil; the normal-pressure saturated ammonium sulfate mother solution crystallized in the crystallizer returns the reaction flotation tower through the mother solution circulation pump; generated crystals are extracted to serve as ammonium sulfate crystals; the normal-pressure steam generated in the crystallizer is condensed through the heat exchanger and then returns to the reaction flotation tower through the condensate pump; condensation water generated in the outer jacket of the crystallizer returns to the reaction flotation tower through the condensate pump. The method process is simplified, the operation time is shortened, and the method is environmentally friendly.

The invention relates to a method for purifying hemimorphite from quartz through flotation, in particular to a hemimorphite and quartz flotation separation method, and belongs to the technical field of mineral flotation separation in the field of mineral processing engineering. According to the method for purifying the hemimorphite from the quartz through flotation, a to-be-processed hemimorphiteand quartz mixed ore sample is mixed with deionized water, a collecting agent is added in ore pulp stirred to be uniform, wherein the use quantity of the collecting agent ranges from 750 g / t to 900 g / t; and flotation is conducted after the ore pulp with the added collecting agent is stirred to be uniform, wherein the collecting agent is N, N'-difatty acyl thylenediamine dipropionate. The method for purifying the hemimorphite from the quartz through flotation is simple in technological process, simple in agent regime and convenient to operate and has good industrial feasibility prospects.

The invention relates to a method for comprehensively using aluminium to electrolyze a waste cathode carbon block, which belongs to the technical field of environment protection and comprises the following steps: crushing and grinding the waste cathode carbon block; adjusting the concentration and the PH value of ore slurry after the grinding, then using floatation equipment to carry out floatation treatment, and separating electrolyte and carbon which are contained in the waste cathode carbon block; using an aluminium salt solution to soak for extracting the electrolyte contained in a carbonproduct obtained from the floatation, and further improving the grade of a high-carbon product; mixing the grinding waste water, the floatation waste water and the soaking solution, and adding CaO and CaCl2 to precipitate and recover aluminium and fluothane in the mixture. The method for comprehensively using aluminium to electrolyze a waste cathode carbon block has simple operating condition, low energy consumption, high recovery ratio of valuable substances and good application prospect.