35results about How to "Wide range of process adaptation" patented technology

The invention discloses a carbon nano tube antistatic film and a preparation method thereof. The preparation method comprises the following steps: covering a substrate surface with a polymer layer to form a composite film; arranging uniformly-distributed carbon nano tubes on the surface of the polymer layer of the composite film; heating the polymer layer to at least enable the surface of the polymer layer to be in a viscous flow state, and part of carbon nano tubes on the surface of the polymer layer to be automatically embedded in the polymer layer; cooling the polymer layer, and using a cross-linking agent to at least enable polymers on the surface of the polymer layer to cross-link, thereby obtaining the carbon nano tube antistatic film. The preparation method provided by the invention is simple in process and wide in application range, and facilitates large-scale preparation; the formed antistatic film is excellent in comprehensive performance, for example, the light transmittance and the electrical conductivity of the antistatic film are excellent, and meanwhile, the antistatic film has excellent water resistance, alcohol resistance, wearing resistance and the like.

The invention relates to an indirect process of preparing light calcium carbonate based on medium strengthening. The indirect process comprises the following steps of: adding calcium-rich ion liquor containing inorganic soluble calcium salt into insoluble organic amine as well as a phase regulator, stirring to uniformly mix the liquor until pH of the mixed liquor is kept stable, wherein pH of the mixed liquor is over 9.5; ventilating a CO2 gas or purified industrial smoke gas into the mixed liquor to react with the mixed liquor, controlling a reaction temperature at 5 DEG C-40 DEG C, and stopping the reaction when pH is lowered to 7-8; filtering, drying and grinding the prepared calcium carbonate precipitates to obtain calcium carbonate of different crystalline forms. According to the indirect process disclosed by the invention, the liquor rich in calcium ions and carbon dioxide react under a higher pH environment and an oil-water mixed state which are respectively provided and created by insoluble organic amine and the phase regulator; temperature is controlled, so that preparation of calcite type as well as vaterite type fine light calcium carbonate is realized.

The invention discloses a fast organic waste recycling hot enzyme aerobic treatment technology. The fast organic waste recycling hot enzyme aerobic treatment technology comprises the steps of: according to the proportion of (6-8):(2-4), respectively placing organic wastes and crop straw or wood chips into a hot enzyme reactor for stirring for 5-10min, respectively adding 0.05%-0.2% of heat-resistant enzyme and 0.05%-0.3% of thermophilic bacteria according to the weight percentage of the organic wastes and crop straw or wood chips, carrying out primary enzymatic fermentation, thorough decomposition and exhausting through the reactor, controlling the temperature of materials at 70-80 DEG C, controlling the humidity of the materials in the reactor to be 60%-70%, wherein the first-time exhausting amount is 100-500m<3> of per tonnage per hour, the exhausting time is 16-18 hours, and the rotating speed of stirring blade of the reactor is 1-20r / min; 16-18 hours later, finely adjusting the parameters of the hot enzyme reactor automatically, carrying out secondary enzymatic fermentation, thorough decomposition and exhausting, controlling the temperature of the materials to be 80-95 DEG C, the rotating speed of the stirring blade of the reactor to be 1-20r / min for 6-8 hours, wherein the second-time exhausting amount is 150-750m<3> of per tonnage per hour, and the exhausting time lasts for 6-8 hours; and then cooling and sieving, or further pelletizing or embedding to obtain the finished product.

The invention discloses a method for recovering active lime from a pulping and papermaking white mud. Pulverized coal or gas is used as a fuel, and the method is suitable for alkali recovery white mud generated in the pulping process of all fibrous raw materials including straw pulp, and the phenomenon of ring forming is prevented. The method is characterized by comprising the following steps: purifying, dehydrating, calcining, decomposing, cyclone-drying, primary pre-heating and the like; the materials are in suspension contact with hot air in equipment is utilized, so that the heat transfer area is increased, and the heat transfer is fast; the calcining temperature is reduced, the temperature of a decomposition reaction is only about 900 DEG C, and the fuel requirement is low; and besides, the production efficiency of calcination of the white mud is greatly improved, the operation of purifying to remove impurities is carried out before calcination to obtain the water-containing white mud with high content of calcium carbonate and low content of impurities, suspension calcination is adopted to avoid the phenomenon of ring forming, the application range of the process is wide, three-level cooling is adopted for cooling rapidly, and most of heat energy is recovered while the active lime is produced.

The present invention belongs to the technical field of silicon steel production, and in particular relates to a Hi-B steel produced using an intrinsic inhibitor method and a casting blank low-temperature heating process. The liquid Hi-B steel contains the following chemical components in mass percent: 0.04-0.065% of C, 3.1-3.3% of Si, 0.08-0.60% of Mn, 0.01-0.03% of P, less than or equal to 0.01% of S, 0.025-0.055% of Als, 0.007-0.013% of N, and 0.1-1.0% of Cu. The Hi-B is prepared with a sulfide serving as an auxiliary inhibitor and by means of the casting blank low-temperature heating process. According to the present invention, not only is low-temperature heating used for a casting blank, but also the process is wide in application range and sufficient in inhibition capability; and the Hi-B steel obtained according to the present invention has a value of B8 as high as 1.988T, and a value of P17 / 50 as low as 0.836W / kg.

The invention relates to a method for recovering rare and precious metal from copper anode slime copper leaching liquid. The method comprises the following steps that 1, rare and precious metal are strengthened and reduced form the copper anode slime copper leaching liquid; and 2, ultrafine particles of rare and precious metal are precipitated, and purification of the copper leaching liquid is synergistically conducted. According to the method for recovering the rare and precious metal from the copper anode slime copper leaching liquid, the copper leaching liquid is pre-treated through the process and can be effectively purified, and the impurity content is reduced, the key point is that the rare and precious metal is efficiently and synergistically recovered, so that the rare and preciousmetal which is dissolved and dispersed in the copper leaching liquid at an ionic state and ultrafine particle state are effectively reduced and enriched, and rare and precious metal concentrate is obtained; and the concentrate is high in valuable element grade and single in element state, and is a source of high quality raw materials for recovering the rare and precious metal, and the method forrecovering the rare and precious metal from the copper anode slime copper leaching liquid has the advantages of high process adaptability, high reduction rate, less impurities and high efficiency.