63results about How to "No temperature gradient" patented technology

The invention discloses a preparation method of a SnS2 / SnO2 lithium ion battery anode material in hollow-sphere structure. The method includes: 1) adding SnCl4.5H2O in a mixed liquid of deionized water and anhydrous ethanol to fully dissolve the component for forming a solution A, and dissolving NaOH in the solution A to prepare a solution B; 2) under stirring, adding urea to the solution B and continuously stirring the solution to prepare a uniform mixed solution C, and performing a homogeneous hydrothermal reaction on the mixed solution C; 3) after the reaction is finished, washing and drying a product to obtain a SnO2 precursor; 4) heating the SnO2 precursor to burning to prepare SnO2 powder; 5) dispersing the SnO2 powder in ethanol with stirring to prepare a uniform mixed suspension D;6) adding SnCl4.5H2O and TAA to the suspension D with stirring until the components are completely dissolved to obtain a homogenous suspension E; 7) performing a microwave thermal reaction on the suspension E, when the reaction is finished, moving-out and washing and drying the product to prepare the SnS2 / SnO2 lithium ion battery anode material in hollow-sphere structure.

This invention has provided one kind of method to leach high price manganese from manganese carbonateore, which belongs to the hydrometallurgy domain. It takes the glucose or the plant biomass and sulfuric acid as reducing agent of high pricemanganese in manganese carbonate ore, adopting microwave radiation glucose to promote high price manganese to revert, the concrete step includes: Takes 1 copy 100-200 sieve manganese carbonateore, add 10 -20 copy water to modulate the pulp; Again add 60% density sulfuric acid to pulp, the load ratio of mineral powder and sulfuric acid is 1: 6 -9; Simultaneously, add glucose or plant biomass, the load ratio of mineral powder and glucose or plant biomass is 10 -15: 1, stir evenly; radiate under 500 -1000W microwave, stir and respond for 4-10min, leach temperature is controlled at 50degree C-60 degree C, then get lixivium by filtering. This invention has the merits of lower reaction temperature, reducing acid consume and reduce leaching time of the manganese ore, high thermal using and respond rapidly.

The invention discloses a preparation method of a degradable super absorbent resin by using ultrasonic wave. Based on ultrasonic treatment technology, the invention adopts a new synthesis technology to prepare the degradable super absorbent resin. The invention is realized through the following procedures: 1. modification treatment of corn stalks; 2. ultrasonic treatment of the corn stalks; and 3. preparation of the super absorbent resin. The invention applies the ultrasonic treatment technology into the absorbent resin preparation, and greatly shortens the reaction time; after treatment, the solution polymerization occurs immediately at high temperature; the invention has simple preparation technology without nitrogen protection, and the prepared products have good water-absorption capacity. The products can improve water conditions of the soil, can be degraded into organic fertilizer, and improve crop growth environment, which is suitable for agricultural extension and utilization.

A method for preparing lanthanum cuprate (La2CuO4) powder by means of the microwave-hydrothermal method includes the following steps: lanthanum nitrate is added into distilled water, so that solution A is obtained; copper nitrate is added into the solution A, so that solution B is obtained; citric acid is added into the solution B, so that solution C is obtained; the pH of the solution C is regulated to 1.5 to 7, so that solution D is obtained; the solution D is added into a microwave-hydrothermal reactor, the reactor is sealed and then put into a microwave-hydrothermal instrument to carry out hydrothermal reaction, and after reaction is finished, the reactor is naturally cooled to the room temperature; sample is collected by centrifugal separation and then repetitively washed by distilled water and acetone, and after drying, the La2CuO4 powder is obtained. Since the method adopts the microwave-hydrothermal method to prepare the La2CuO4 powder, the electric field and the magnetic field can be changed in the space, so that molecular motion can be intensified, as a result, heat energy can be obtained, and thereby the synthesis of the La2CuO4 powder becomes highly efficient, simple and highly repetitive. Moreover, the heating speed is high, heating is uniform and does not have the temperature gradient and the hysteresis effect, consequently, the defect of ununiform heating of a hydrothermal container is overcome, the reaction time is shortened, energy consumption is reduced, and the working efficiency is increased.

The invention relates to a method for preparing activated carbon by utilizing Chinese fir bark microwave-assisted hydrothermal. The invention takes Chinese fir bark powder as a raw material; pours the Chinese fir bark powder into a beaker, adds potassium hydroxide and deionized water, and stirs. Obtain a mixed solution; transfer the mixed solution to a high-pressure reactor, react in a microwave hydrothermal synthesizer, dry the reacted mixed solution, sinter in a muffle furnace, and wash the sintered raw materials with acid to Neutral, dry, that is a fir bark microwave hydrothermal activated carbon, which has a good potential in carbon dioxide capture.