248results about How to "Reduce the amount of dissolution" patented technology

The invention relates to a preparation method of an active carbon loaded catalyst for electrochemically catalyzing and degrading organic wastewater and belongs to the technical field of preparation of catalysts. The preparation method comprises the following steps: preparing an active carbon solid containing a plurality of types of active metal by using a sol-gel method; adding P2O5 powder into the active carbon solid containing the active metal and roasting; sublimating the P2O5 powder into gas at a high temperature; and when the gas is expanded at the high temperature and escapes, generating a plurality of small pores in the active carbon, so that the specific surface area and adsorption capability of the active carbon are improved. According to the preparation method, rare earth metal is used in match with the other active metal so that grains on the surface of the catalyst are uniform and thinned; and meanwhile, the preparation method is combined with a method of adding the P2O5 powder to roast, so that the catalysis efficiency of the prepared active carbon loaded catalyst can be improved by more than 5%-15%. The method has a simple process, is convenient to operate and is low in cost; and in a process of electrochemically catalyzing and degrading the organic wastewater by using the prepared catalyst, other oxidants do not need to be additionally added and the large-scale industrialized application of the preparation method is facilitated.

Provided are a phosphor which is capable of emitting green light of high luminance and in which unfavorable effects on other members has been reduced so as to be applicable to white light having excellent light emitting characteristics, a light emitting device using the phosphor, and a method for manufacturing the phosphor. The phosphor containing silicon, magnesium, and chlorine, and activated with europium and capable of emitting green light, in which the molar ratio of chlorine to magnesium is in a range of 1.0≦Cl / Mg≦1.9. Introduction of chlorine at such a composition ratio improves the light emitting characteristics and the amount of chlorine dissolved.

The invention relates to self-forming glaze white jade porcelain pug and a manufacturing method of a porcelain pug product. The self-forming glaze white jade porcelain pug comprises the followings in percentage by weight: 13 to 21 percent of kaoline, 14 to 20 percent of feldspar, 2 to 7 percent of bentonite, 38 to 47 percent of quartz, 11 to 16 percent of wollostonite and 7 to 11 percent of calcite power. The manufacturing method provided by the invention comprises the steps of sparring, slurrying and the like. The method has the benefits as follows: traditional two-step firing is changed to be one-step firing, energy consumption is lowered, carbon discharge capacity is reduced, processes of glaze making and glazing are removed, the discharge capacity of three wastes is reduced, human resources are saved, the dissolving-out amount of heavy metals such as lead and cadmium and the like carried into glaze is reduced, the porcelain pug is glittering and translucent, like jade, and the section of the porcelain pug has no arrises and is shell-shaped. The porcelain pug product prepared by the invention is green, environmental-friendly and safe, can be used as dishware porcelain, daily porcelain, art porcelain, decorative porcelain, porcelain for lighting tools and the like in the ceramic industry.

A soft polyvinyl chloride plastics for blood transfusion device, such as blood bag, is proportionally prepared from PVC resin, phthalate, trimellitate, citrate, epoxy soybean oil, composite Ca-P stabilizer and silicon oil. Its advantages are no erythrocatalysis, high stability of trimellitate, and low toxin.

The present invention relates to ceramic product, and is especially one kind of in-glaze color decorated daily use porcelain product and its production process. The materials for the in-glaze color decorated daily use porcelain include Longyan clay, weathered potash feldspar, Jiepai clay, potash feldspar, calcined alumina, Guizhou clay and quarztz. The production process of the in-glaze color decorated daily use porcelain product includes the steps of making biscuit, preparing glaze and in-glaze color paper, glazing the biscuit, firing biscuit, adhering the in-glaze color paper, and baking to obtain the product. The in-glaze color decorated daily use porcelain has rich bright colors, smooth and fine glaze surface, low Pb and Cd leaching out amount, high strength, and other advantages.

Disclosed is a cationic surface sizing agent intended to be coated on a base paper for a newspaper, which can improve a sizing property and scumming resistance during offset printing. The cationic surface sizing agent is produced by quaternizing a copolymer having a weight average molecular weight of 30,000 to 60,000, wherein the copolymer is produced by polymerizing (a) 20 to 40% by weight of a monomer having a tertiary amino group, (b) 10 to 80% by weight of a C4-C18 alkyl ester of (meth)acrylic acid and (c) 0 to 70% by weight of styrene or a derivative thereof with an azo-type polymerization initiator in the presence of a chain transfer agent. The cationic surface sizing agent has an improved sizing property without causing the decrease in the level of hydrophobicity of the copolymer and can prevent the sensitization of a plate to be printed (e.g., a PS plate) by specifying the composition of the monomers, using an azo-type polymerization initiator and also specifying the molecularweight of the copolymer.

A method including electrolysis processing using sulfate-based electrolytes includes precipitating sodium sulfate decahydrate from a salt solution and then redissolving sodium sulfate decahydrate to prepare feed of electrolyte solution for the electrolysis processing. Front-end processing may be used to treat mixed salt solutions, including brine solutions. Calcium sulfate reagent may provide a sulfate source to regenerate electrolyte solution following carbon capture, and with carbon dioxide being sequestered in the form of calcium carbonate.

The invention relates to the field of daily use ceramics, in particular to daily use ceramics and a preparation method thereof, wherein, the blank for the daily use ceramics comprises 7-10wt% Li2O, 30-33wt% Al2O3, and 58-62wt% SiO2; the glaze comprises 48-52% SiO2, 28-31wt% Al2O3, 6-9wt% Li2O, 1-2wt% ZrO2, 2-3wt% P2O5, 2-3wt% TiO2, 0.5-1.5wt% Na2O, 0.5-1.5wt% K2O, 2-4wt% B2O3, and 0.5-1.5wt% PbO;and 4-6 wt% clay is added into the glaze in addition before glazing. Compared with the prior art, the preparation method in the invention, by improving the formulas of the blank and the glaze and thefiring process, allows the water absorption to be changed from 3.5% to less than 15%, meeting the requirement of users, improving the heat preservation of the products, reducing the sintering temperature to about 40 DEG C, and reducing the cost greatly.

The invention relates to a method for preparing diisopropyl phosphate via the esterification of phosphorus trichloride and isopropanol, which comprises adding phosphorus trichloride into benzene solvent to form a first mixture, adding benzene, isopropanol and weak alkaline organic catalyst into a reactor to form a second mixture, slowly adding the first mixture into the second mixture to form a reaction system, increasing and controlling temperature, reacting for 4.5-9h to obtain the mixture containing diisopropyl phosphate, deacidifying the mixture via pure alkali, filtering, distilling, depressurizing and distilling to obtain final diisopropyl phosphate product. The preparation method has low cost and high yield.

Provided is a preparation method for acquiring spherical activated carbon of carbon dioxide. Linetype phenolic resin, nitrogenous compounds and industrial alcohol are mixed to be prepared to pulp, and the pulp is directly added to a reaction kettle which contains a surface active agent and water. After being tightly closed, the reaction kettle is turned on for mixing, heating rate is increased to100 to 170 DEG C, and then the temperature is constant for 0.5 to 3 hours. After natural cooling, resin spheres are obtained. The resin spheres are placed in a carbonization activation furnace, inertgases are led in, proportion by weight of gas flow rate to the resin spheres is 300 to 1,000 L / min: 1kg, then the temperature is increased to 700 to 1,000 DEG C with the heating rate of 0.1 to 4 DEG C / min, the gases are changed to active gases, proportion of the active gases to the resin spheres is 100 to 300L / min: 1kg, after 0.5 to 2 hours of activation, the gases are changed to inert gases, the temperature is lowered to below 50 DEG C, and the final products are obtained. The preparation method for acquiring spherical activated carbon of carbon dioxide has the advantages of being low in cost and high in nitrogen content.