48results about How to "Guaranteed absorption rate" patented technology

The present invention relates to a core material for a vacuum insulation panel and a manufacturing method for same, and comprises the following steps: (a) preparing an inorganic binder solution; (b) dipping glass wool into the inorganic binder solution; (c) loading the glass wool onto the upper portion of a chamber; (d) creating a vacuum inside the chamber in order to discharge the inorganic binder solution into the chamber; and (e) drying the glass wool and molding it into the form of the core material for manufacturing a vacuum insulation panel, thus enhancing the long-term durability of the vacuum insulation panel.

The invention discloses a two-phase amine absorbent for capturing carbon dioxide and the application thereof. The two-phase amine absorbent is a ternary component system formed by diethylenetriamine, pentamethyl diethylenetriamine and water. The total concentration of diethylenetriamine and pentamethyl diethylenetriamine in water is 4-5 mol / L, and the molar ratio of diethylenetriamine to pentamethyl diethylenetriamine is (1:4)-(4:1). The independent aqueous solutions of the two organic amines do not have phase separation ability after absorbing CO2; however, the two-phase amine absorbent consisting the ternary component system has phase separation ability, and the two-phase amine absorbent is a homogeneous solution before absorbing CO2 and is divided into two phases after absorbing CO2. After saturated absorption, CO2 is rich in water phase; after phase separation, it only needs to conduct thermal regeneration on solution rich in CO2, so that rich liquid amount required for regeneration is reduced greatly, regeneration energy consumption can be effectively reduced, efficient CO2 absorbability can be maintained, and application prospects are broad.

The invention discloses a method for preparing manganese sulfate by absorbing sulfur dioxide in flue gas with manganese dioxide ore pulp, comprising the following steps: performing wet ball milling on manganese dioxide ore and grading to obtain initial ore pulp, and the particle size of the ore material in the initial ore pulp is less than 149 μm, the initial pulp is crushed by a vertical stirring mill to obtain a reaction pulp, and 90% of the particle size of the mineral material in the reaction pulp is below 50 μm; add a manganese sulfate solution containing Fe3+ and / or Fe2+ to the obtained reaction pulp, and then make the reaction pulp Absorption reaction with high-temperature flue gas containing sulfur dioxide, the reaction temperature is controlled at 90 ° C ~ 95 ° C; after the completion of the absorption reaction, the reaction product is subjected to solid-liquid separation, iron and heavy metal removal, and then concentrated and crystallized under normal pressure to obtain monohydrate Manganese sulfate. The method of the invention has the advantages of energy saving and environmental protection, high resource utilization rate, high product added value, good flue gas desulfurization effect, continuous and thorough reaction, low cost and the like.

A method for producing steel used in a titanium master alloy bonding wire by small billet continuous casting belongs to the steelmaking technical field. The process route is as follows: low-sulfur molten iron and scrap steel, converter blowing, slag blocking and tapping, steel ladle deoxidation alloying, secondary refining, complete protection continuous casting by a small billet caster and casting blank inspection. The method is characterized by controlling technical parameters of critical process links, reducing the contents of aluminum and nitrogen in the molten steel, solving the problem of submerged nozzle clogging and crystallizer protecting slag floater easily occurring at the small billet continuous casting of high titanium steel variety, and realizing the smooth production of thesteel used in the titanium master alloy bonding wire by the small billet continuous casting. The method has the advantages of being capable of replacing a production process for producing the steel used in the titanium master alloy bonding wire by continuous casting of die casting and large billets, achieving 0.08-0.17% titanium content of a product and fully meeting the use requirement of the steel used in the bonding wire.

The invention discloses an absorption device for acidic substances in sulfur hexafluoride gas and hydrolyzable fluoride, which comprises a gas absorption pool and an absorption liquid. The absorption liquid is arranged inside the gas absorption pool. The gas absorption pool is a vertical The long and thin structure placed vertically, the absorption liquid is a certain concentration of sodium hydroxide solution; the control pipeline of the gas absorption pool is provided with a number of electromagnetic valves that can be opened and closed arbitrarily; the bottom of the gas absorption pool is connected to There is an air inlet, and a pressure reducing valve and a steady flow valve are sequentially connected between the air inlet and the bottom of the gas absorption pool; the bottom of the gas absorption pool is also connected with an automatic sampler and a liquid outlet ; The top of the gas absorption pool is connected with an exhaust port; the top of the gas absorption pool is provided with a pressure sensor. The invention also proposes a method for absorbing acidic substances and hydrolyzable fluorides in sulfur hexafluoride gas, which has the characteristics of convenient operation, high absorption efficiency and less solution consumption.

The invention discloses a production method of ultra-pure electronic grade phosphoric acid, comprising the following steps of: (1) vaporizing high purity phosphorous oxychloride by heating and allowing phosphorous oxychloride steam to enter a phosphoric acid generator; (2) heating high purity water to prepare water vapor, and allowing water vapor to enter the phosphoric acid generator; (3) adjusting the mass ratio of water vapor to phosphorous oxychloride steam in the phosphoric acid generator, conducting a reaction to generate ultra-pure phosphoric acid and hydrogen chloride steam, adding phosphoric acid into a liquid collection tank, removing bubbles from hydrogen chloride and putting it into a hydrochloric acid liquid trap; (4) heating the obtained phosphoric acid, and separating hydrogen chloride under vacuum to obtain ultra-pure electronic grade phosphoric acid; and (5) allowing the obtained hydrochloric acid to enter an evaporator, vaporizing a hydrogen chloride gas, carrying out cyclic absorption by the use of an absorption liquid to obtain high purity hydrochloric acid; and carrying out condensation and despumation on the tail gas which has undergone absorption, and allowing the tail gas to pass through a tail gas tower and to be discharged into the atmosphere. According to the invention, the gas phase reaction between phosphorous oxychloride and water vapor is conducted, contact surface of reactants is enlarged, reaction speed is effectively controlled, and the contents of water and hydrogen chloride in phosphoric acid are controlled. Therefore, the ultra-pure electronic grade phosphoric acid can be prepared with a by-product of high purity hydrochloric acid.

The invention provides a dust-fall treatment system for fluorine gypsum truck loading and belongs to the field of a dust-fall device. The dust-fall treatment system for fluorine gypsum truck loading is characterized in that a gypsum storage is internally provided with a truck parking chamber (2) and a gravity settling chamber (4), the middle part of the truck parking chamber (2) is provided with a loading port (1), the gravity settling chamber (4) is divided into five gravity settling areas by clapboards (20), a first gravity settling area (12) is divided into a main gravity settling area and a secondary gravity settling area by a vertical clapboard (14), the vertical clapboard (14) between the first main gravity settling area and the secondary gravity settling area is perpendicular to a clapboard (20) between the first gravity settling area (12) and a second gravity settling area (10), and each gravity settling area is provided with a material cleaning port (16), an observing port (17), an upper air inlet (11) and a lower air inlet (3). The whole fluorine gypsum truck loading process is basically closed truck loading; air is introduced into the settling chamber by an auxiliary draught fan to perform dust-fall; the dust absorption rate is more than 90%; and not only is the truck loading environment of a forklift driver improved, but also the environment is protected.