45results about How to "Optimization index" patented technology

The invention belongs to the field of green organic synthesis and aims to provide a synthesizing method and application for a bi-component bi-metallic catalyst. The method comprises the following steps that: dissolving multi-cyanogroup alloy potassium peroxymonopersulfate in deionized water, and then adding a water soluble polymer; stirring till completely dissolving the water soluble polymer, and then dripping into the aqueous solution of halide salt, nitrate, phosphate or sulfate of zinc, cobalt or cadmium; after stirring or performing ultrasonic reaction, separating and drying so as to obtain solid; mixing the obtained solid with quaternary ammonium salt, phosphor salt or mixture thereof in any proportion; and performing wet ball milling on the obtained mixture, and then separating, drying and sieving, thereby obtaining the bi-component bi-metallic catalyst. The bi-component bi-metallic catalyst is high in catalyzing efficiency and selectivity; the overall indicator of the catalyzing efficiency and selectivity is better than that of the prior art; the bi-component bi-metallic catalyst has the obvious advantage that less water almost has no influence on the activity and selectivity of the catalyst; and the catalyst provided by the invention is capable of catalyzing the coupling reaction of bi-radical or multi-radical oxide and CO2 and has excellent activity and selectivity.

The invention provides a semi-submersible type floating fan base and a floating fan. The floating fan base comprises at least three stand columns, a stand column connecting structure and a supporting stand column, wherein the stand column connecting structure is connected with the lower ends of the stand columns to integrate the stand columns and the stand column connecting structure into a whole; the supporting stand column is arranged in the center of the floating fan base and used for supporting a tower, a cabin, blades and a wind generating system of the fan; and the cross sectional area of each stand column gradually grows large from a preset position underwater to top. The floating fan comprises the semi-submersible type floating fan base, the tower, the cabin, the wind generating system and the blades, wherein the tower is mounted on the supporting stand column of the semi-submersible type floating fan base; the cabin is mounted on the top of the tower; and the wind generating system and the blades are mounted at the front end of the cabin. According to the semi-submersible type floating fan base, the structure and the movement performance of the floating fan are improved, and production cost and installation cost are reduced.

The disinfectant consists of polyethoxyl carboxyl carbamidine 0.1-2.0 wt%, dodecyl dimethyl benzyl ammonium chloride 0.1-2.0 wt%, dimethyl benzyl ammonium bromide 0.1-2.0 wt%, bisoctyl / bisdecyl dimethyl chloride 0.1-2.0 wt%, tetradecyl / octadecyl dimethyl benzyl ammonium chloride 0.1-2.0 wt%, and 2-bromo-2-nitro-1, 3- propylene glycol 0.1-2.0 wt% except water. The disinfectant of the present invention is noncorrosive single-component transparent liquid, and has no color, no smell, no toxicity and harm, small dose, fast disinfecting effect, high safety and environment friendship.

The invention discloses a low alkali sulfur acid free floatation technology for high sulfur lead zinc ores, and belongs to the technical field of ore processing. Sulfur concentrate (pyrite) is obtained after lead-sulfur mixing-floating and lead-sulfur separation. Sulfur acid is not used, the environmental pollution caused by sulfuric acid is avoided, the wastewater processing cost is reduced; at the same time, the steps for storing, transporting, and using sulfuric acid are all eliminated, the production and management difficulty is reduced; in lead-sulfur separation, lime, BP, and BH are usedas an inhibitor for pyrite, the novel medicaments (BP, BH) have a good separation effect; the alkalinity of the mineral slurry is low, the using amount of lime is reduced; and solved are problems that the alkalinity of mineral slurry is high, the foams are viscous, the entrainment of gangue is severe, and the comprehensive recovery rate of precious metals such as silver, gold, and the like, is low.

The invention discloses a deep treatment method of naphthenic acid wastewater. Wastewater treatment comprises oil removing treatment, biological treatment, chemical precipitation-coagulation, sand filtration treatment and activated carbon adsorption treatment, wherein the chemical precipitation-coagulation is performed under the alkaline condition for making non-biodegradable naphthenic acid be reacted with lime to generate calcium naphthenate precipitates and remove the precipitated calcium naphthenate precipitates from wastewater under the coagulation action; the sand filtration is performed to treat colloids and suspended matters in wastewater; and the activated carbon adsorption is performed to further treat wastewater-dissolvable microorganism products and other non-biodegradable organic matters. Due to the adoption of the method, organic matters such as naphthenic acid and the like are effectively removed finally, the COD (Chemical Oxygen Demand) of treatment effluent is less than or equal to 50 mg / L, the strict local discharge standard (COD is less than or equal to 60 mg / L) can be met, and the environmental risk of wastewater discharge is lowered; and the method is suitable for performing deep treatment on naphthenic acid in various types of oil refining or oil field wastewater.