4results about How to "Reduce Chloride Content" patented technology

The utility model discloses a system of removing chlorine ion in lean organic phase in the system of crude phosphoric acid organic extraction production potassium dihydrogen phosphate, which comprises: a back extraction tank for reacting hydrochloric acid organic phase with ammonia water to generate ammonium chloride and separating phases; an aging tank connected to the outlet of the back extraction tank for static separation and phase separation to precipitate a chlorine-containing water phase; a multi-stage countercurrent water washing tank comprising at least three series-connected water washing tanks for washing the organic phase step by step; and an adsorption tower connected to the outlet of the last-stage water washing tank and provided with an adsorbent for further removing chlorine ions in the organic phase. The utility model fully utilizes washing water, reduces water consumption, realizes a chlorine ion removal rate of 94% to 96% in the lean organic phase, improves the purity of potassium dihydrogen phosphate products, prolongs the service life of the extraction agent, and systematically solves the industry problem that it is difficult to remove alkyl halides in the lean organic phase.

The utility model relates to the technical field of desulfurization and impurity removal, in particular to a slurry impurity removal device of a belt conveyor. The slurry impurity removing device of the belt conveyor comprises a driving wheel, a filtering conveying belt is arranged on the driving wheel, a discharging port is formed in the filtering conveying belt, a discharging outlet is formed in one side of the driving wheel, and a first-stage rotary washing wheel and a second-stage rotary washing wheel are arranged between the discharging port and the discharging outlet. A loosening rake is arranged between the first-stage rotary washing wheel and the second-stage rotary washing wheel, a first-stage supporting frame is arranged below the first-stage rotary washing wheel, a first-stage scraping plate is arranged on the first-stage supporting frame, a first-stage impurity removing canvas is arranged on the first-stage scraping plate, and the first-stage impurity removing canvas is in contact with the filtering conveying belt. According to the device, through the arrangement of the loosening rake, black substances attached to the interior or the bottom of gypsum are also exposed, and the impurity removal efficiency is greatly improved; and through the arrangement of a scraping plate, the working efficiency of the impurity removal canvas is improved.

The application belongs to the technical field of wastewater treatment, and relates to a method and system for extracting and removing chlorine ions in industrial wastewater, which comprises the following steps: sending chlorine-containing wastewater into a first extraction tower to contact with an extraction solvent for extraction, so as to obtain a chlorine ion extract and raffinate wastewater; the raffinate wastewater enters a second extraction tower to contact with a diluent for extraction, the residual extraction agent is recovered into the diluent phase, the recovered wastewater enters a diluent stripping tower, an azeotrope of the diluent and water is obtained from the top of the tower, and treated wastewater is obtained from the bottom of the tower; the azeotrope of the diluent and water is pumped into a diluent recovery tower for rectification and separation, so as to obtain pure diluent and still liquid; and the chlorine ion extract is sent into an extraction agent regeneration tower to be regenerated by back extraction with lye, so as to obtain the extraction agent and a chlorine ion concentrate. The application can efficiently remove the chlorine ions in the wastewater, simultaneously realizes complete recovery of the residual extraction agent and diluent in the wastewater, can eliminate secondary pollution, and has the advantages of being clean and environmentally friendly.

The application discloses a resin regeneration wastewater acid-base recycling system, which comprises a chlorine salt wastewater recycling system and a sodium salt wastewater recycling system, and the chlorine salt wastewater recycling system and the sodium salt wastewater recycling system are connected with a salt solution storage tank through pipelines; a chlorine ion monitor is arranged on the pipeline connected with the salt solution storage tank, and the chlorine ion monitor is arranged close to the salt solution storage tank; and the application further discloses a wastewater treatment method of the resin regeneration wastewater acid-base recycling system. The cation resin chlorine salt wastewater is electrolyzed through an electric adsorption electrolysis device to obtain hydrochloric acid solution and miscellaneous alkali solution which are respectively transported to a hydrochloric acid storage tank and a miscellaneous alkali water tank; meanwhile, the anion resin sodium salt wastewater is electrolyzed through a sodium salt electric adsorption electrolysis device to obtain sodium hydroxide solution and miscellaneous acid solution which are respectively transported to a sodium hydroxide storage tank and a miscellaneous acid water tank; and the miscellaneous acid solution and the miscellaneous alkali solution are mutually neutralized in the pipeline to obtain a salt solution for a desulfurization system. The recycling system avoids the problem of high chlorine content in the desulfurization system.