4 results about "Magnesium silicate" patented technology

The invention discloses a heavy metal ion chelating agent for treating electroplating wastewater and a preparation method and application of the heavy metal ion chelating agent. The preparation method includes the steps of firstly, dropwise adding a magnesium sulfate solution into a sodium silicate solution, magnetically stirring for 2-4 hours, and performing hydrothermal reaction to obtain magnesium silicate gel liquid; secondly, dissolving 4-amino benzo-18-crown ether-6 into an organic solvent; thirdly, adding the solution obtained in the second step into the magnesium silicate gel liquid obtained in the first step, magnetically stirring for 2-4 hours, evenly mixing, performing hydrothermal reaction, filtering after the reaction, performing suction filtration on a filtered product, washing, and drying to obtain the heavy metal ion chelating agent. The preparation method has the advantages that the heavy metal ion chelating agent prepared by the method is used for treating the electroplating wastewater and especially the electroplating wastewater whose heavy metal ions mainly exist in the form of compounding agent complexing, and high removing rate and high-stability removing of the heavy metal ions can be achieved.

The invention discloses an anti-static thermal-insulating adhesive which comprises the following components in parts by weight: 24-36 parts of lithium silicate, 20-30 parts of graphite pebbles, 16-18 parts of vanadium trioxide, 10-20 parts of azodicarbonamide, 8-12 parts of zinc oxide, 4-12 parts of benzoyl peroxide, 10-20 parts of polyurethane, 40-60 parts of organic silicon, 20-60 parts of polyimide, 40-60 parts of poly-isobutyl ester, 40-80 parts of phenolic resin, 10-20 parts of magnesium silicate, 20-30 parts of acetone, 10-12 parts of benzoyl peroxide, 10-20 parts of azodicarbonamide, 20-30 parts of benzoyl peroxide, 10-12 parts of phthalic acid dibutyl ester and 12-20 parts of triphenyl phosphate. The anti-static thermal-insulating adhesive disclosed by the invention is simple to prepare, good in use effect and environment-friendly, the production raw materials are free of toxicity, and an adhesive coating is good in anti-static property.

The invention relates to the technical field of refractory materials, in particular to a high-performance magnesite brick for a glass kiln and a preparation method of the high-performance magnesite brick. The magnesite high-purity magnesite clinker comprises the following components in parts by weight: 80-95 parts of flotation magnesite high-purity magnesite clinker, 5-15 parts of superfine magnesite powder and 0.05-0.5 part of high-purity silicon oxide powder, 0.05 to 0.5 part of high-purity magnesium silicate powder; and 1.0-3.5 parts of a binding agent. The binding agent is industrial dextrin which does not contain sulfate components. Compared with a traditional high-purity magnesite brick, the high-performance magnesite brick for the glass kiln has the advantages that flotation magnesite high-purity sintered magnesia is adopted as a main raw material, and resources are saved; the sintering temperature of the product is reduced by 70 DEG C, and energy is saved; industrial dextrin without sulfate is used, so that environmental protection is facilitated. In the aspect of performance, the alkali corrosion resistance and thermal shock resistance are better, the creep rate is smaller, and the good market application prospect is achieved.