3results about How to "Achieve high value" patented technology

The utility model relates to the field of building material recovery, especially a kind of environmental protection building material recovery device with glue, including wind cylinder, the upper portion of wind cylinder is equipped with blowing assembly, wind cylinder top is equipped with cover frame, heating assembly is arranged in the middle of wind cylinder, worm is rotatably connected in the lower side of wind cylinder, first mounting plate is placed in the lower part of wind cylinder, and first mounting plate is rotatably connected with wind cylinder.The utility model integrates hot air softening, dynamic angle cutting and modularization stripping function, high-temperature polythermal air beam efficiently softens glue layer, worm and half worm wheel realize the angle accurate adjustment of cutting component, adapt to special-shaped base material, glue-removing knife and thorn roller module with quick switching respond to different adhesive strength glue layer, improve separation efficiency and purity, overall design significantly reduces energy consumption and labor cost, realizes the high-value, environmental protection recovery of waste material with glue.

The invention discloses a method for co-producing high-purity sodium fluoride and ammonium chloride through fluorosilicic acid ammonolysis, and belongs to the technical field of fluorine chemical industry. Firstly, fluosilicic acid reacts with ammonia water to prepare an ammonium fluoride solution; secondly, sodium chloride and a sodium pyrophosphate inhibitor are added into the solution, and sodium fluoride coarse crystals and first mother liquor are obtained through programmed temperature control crystallization; then, carrying out two-stage negative pressure gradient concentration on the first mother liquor, deeply recovering sodium fluoride and crystallizing ammonium chloride; then, carrying out gradient purification on the sodium fluoride coarse crystal by absolute ethyl alcohol to obtain a high-purity product; finally, the ammonium chloride wet material is granulated into a superior chemical fertilizer through a fluidized bed, through the innovative crystallization and purification technology, the total yield of sodium fluoride is stabilized at 96.5% or above, the product purity breaks through 99.8%, meanwhile, high-value utilization of the by-product ammonium chloride is achieved, and economic and environment-friendly benefits are remarkable.

The present application relates to solid waste resource utilization technical field, disclose a kind of methods for preparing silicon micro powder based on chlorination waste brine quenching slag in situ carbothermal reduction, method includes: S1, the molten salt chlorination waste brine quenching slag is carried out drying and ball milling treatment, and pretreatment material is obtained;S2, pretreatment material is carried out magnetic separation, and non-magnetic mixture is obtained;S3, after non-magnetic mixture and mixed acid are carried out acid dipping reaction, solid-liquid separation is carried out, and the silicon-rich filter residue containing silicon dioxide and elemental carbon is obtained;S4, after silicon-rich filter residue is washed and dried, silicon dioxide and elemental carbon in it are made to carry out carbothermal reduction reaction under inert atmosphere, and silicon micro powder product is obtained.The purity and resource utilization rate of silicon micro powder product are improved by the scheme of the present application, and high-value and clean utilization of waste water quenching slag is realized.