40results about How to "Realization of high value-added utilization" patented technology

The invention discloses a process for using blast furnace titanium slag to absorb and regenerate waste lubricating oil. The adsorption and regeneration reaction of the waste lubricating oil is carried out under the reaction temperature of 120° C. to 120° C. under the agitation of the stirrer. After the reaction is completed, the blast furnace titanium slag is filtered to obtain the regenerated lubricating oil. The invention has simple process conditions, less investment and lower operating cost, and can effectively reduce the cost of adsorption and regeneration of waste lubricating oil. At the same time, using the activity of TiO2 in blast furnace titanium slag and using blast furnace titanium slag as an adsorbent to carry out adsorption and regeneration of waste lubricating oil can realize high value-added utilization of blast furnace titanium slag, and the social and economic benefits are very obvious.

The invention discloses a method for co-producing collagen active peptides and flavor base materials from chicken bones. By adopting a two-stage hot-pressing extraction method and undergoing slight pressure relief and pressure supplementation, the extraction of collagen from chicken bones is greatly improved. The yield of active peptides; the degree of hydrolysis of the enzymolysis solution is improved by homogenizing the osteotin in the extract solution under high pressure before performing the step-by-step enzymatic hydrolysis reaction. In addition, by performing two-stage ultrafiltration on the enzymatic hydrolysis solution, the separation and purification of different products in the enzymatic hydrolysis solution are realized, and subsequent processing is carried out on the products of each molecular segment to obtain osteopolysaccharides, macromolecular polypeptides and small molecules including chondroitin sulfate. Polypeptides and other products can make full use of bone enzymatic hydrolyzate, especially through the Maillard reaction of macromolecular polypeptides with xylose, cysteine ​​and thiamine to obtain rich-flavored flavor bases.

The invention belongs to the technical field of comprehensive utilization of resources, and relates to an active coke for flue gas desulfurization and a preparation method thereof. The mixture is obtained by mixing low-modified pulverized coal, semi-coke powder, phenolic resin, sodium humate and sodium bentonite; In terms of percentage, the mixture A contains 35%-42.5% of low-modified pulverized coal, 35%-42.5% of semi-coke powder, 5%-15% of phenolic resin, 5%-15% of sodium humate, 5%- 15% sodium-based bentonite; add ethanol solution and deionized water with a solute quality of 8%-10% to the mixture, mix uniformly and press under a pressure of 5-7MPa to obtain a molding strip; dry the molding strip Carrying out carbonization and activation treatment on the dried molding strips under a protective atmosphere; obtaining the active coke material for flue gas desulfurization after the activation treatment. The invention has simple process and low cost, and opens up a new development and application path for the utilization of low-rank coal with high added value.

The invention discloses a method for preparing a manganese-iron alloy based on low-grade manganese ore. The method comprises four processes, namely ball milling of raw materials, pelletizing, quick reduction and slag-metal separation. The method comprises the following steps: mixing low-grade manganese ore and iron ore powder; milling the mixed ore, and screening with a 150-300 meshes screen; mixing the screen underflow with the pulverized coal, lime, bentonite and water, and pelletizing on a disc type pelletizer, wherein the diameter of the green balls is 10-16mm; drying the green balls at 105 DEG C for 4h; reducing the dried pellets at 1,450-1,550 DEG C for 8-15min; and after the reaction, crushing the raw material, and performing simple magnetic separation to obtain granular manganese iron, wherein the manganese content is 45-70%, the iron content is 25-45%, the carbon content is 2-5%, and the balance is impurities. According to the method disclosed by the invention, the manganese-iron alloy is prepared by the one-step process of the quick reducing technology, the slag and metal are easily separated, the process is pollution-free, the manganese recovery rate is high, and high value-added utilization of the low-grade manganese ore is realized.