5results about How to "Curing stability" patented technology

The application discloses fluorosilicate glass, a preparation method and application thereof, and directly uses fluorine-containing sludge and lithium tailings as raw materials, and the mass ratio of the fluorine-containing sludge and the lithium tailings is 3:7-7:3; the mixed materials are high-temperature melted at 1500-1550 DEG C for 1-1.5 h, and after casting forming, annealing is carried out at 600-650 DEG C, so that the base microcrystalline glass is obtained; then, heat treatment is carried out at 10K / min to 950-1050 DEG C for 1-2 h, so that complex crystal phases of albite and calcium fluoride are precipitated. The application realizes glass solidification of the fluorine-containing sludge, and fluorine ions are solidified in CaF2 and a glass network; the obtained microcrystalline glass has a Vickers hardness of 6.3-6.7 GPa, meets the requirements of building and decoration materials, and can be widely used in floor tiles, wall decoration plates and the like. The method simultaneously disposes of two kinds of solid wastes, realizes'material preparation from waste', and has the advantages of environmental friendliness and economic benefits.

This invention relates to the field of hydrometallurgical technology, specifically disclosing a method for smelting ionic rare earth ores based on synergistic precipitation and resource recycling, comprising the following steps: S1: Water, ionic rare earth ore, and ferric hydroxide are added to a reaction vessel, and hydrochloric acid is added. During the reaction, after detecting that the residual acidity is greater than 0.3 mol / L, barium chloride is added quantitatively according to the sulfate content; S2: A pH adjuster is added to the reaction system and the temperature is controlled for adjustment. The pH is first adjusted to 2.5-3 and then to 4.5 to form a stepwise precipitation. After the reaction, clarification and separation are performed to obtain supernatant A and concentrate A; S3: The obtained concentrate A is reacted with liquid alkali in an alkali-to-alkali conversion reaction. After the alkali conversion, the alkali slurry is fed into... After washing and filtration, alkali cake residue is obtained; S4: The obtained alkali cake residue is mixed with supernatant A and the pH is adjusted to 5.2. The temperature is controlled at 80℃. After the reaction is clarified, the adjusted residue and supernatant B are obtained; S5: The adjusted residue obtained in S4 is added to acid for leaching. The residual acidity is controlled to be greater than 0.5 mol / L. After the reaction is clarified, supernatant C and concentrate C are obtained; S6: The pH of supernatant C obtained in S5 is adjusted in stages. First, the pH is adjusted to 2.0, and then the pH is stabilized at 3.5. After the reaction, supernatant D and concentrate D are obtained; S7: The pH of supernatant D obtained in S6 is adjusted again and stabilized at 5.2. After the reaction, supernatant E and concentrate E are obtained.

The present application relates to the technical field of adsorption material preparation and heavy metal treatment, and particularly relates to a silicate-chloroapatite composite material, a preparation method and application thereof. The present application proposes a mechanism of "mineral phase reconstruction and functional component synergistic construction of high-density and high-energy adsorption sites", utilizes the characteristic of coexistence of multiple mineral components, and through synergistic induction of calcium source and phosphorus source, promotes the original mineral phase to be reconstructed into an amorphous porous silicate matrix with higher activity (adsorption site energy is higher), and in-situ generates chloroapatite with strong immobilization capacity for heavy metals. This not only realizes mineral structure activation and porous structure construction, but also forms a synergistic effect of silicate and chloroapatite in the adsorption process: chloroapatite and heavy metals such as lead form stable phosphorus-chlorine-lead ore solidification products, and the reconstructed silicate and calcium ions provide efficient ion exchange sites, improve the site energy of the adsorption sites, and thus improve the removal efficiency of heavy metals in a wide concentration range.

The invention discloses injectable photocuring hydrogel for bone tissue repair and a preparation method and application thereof.The method comprises the steps that at the room temperature, SA, HA, AAm, MBA, Hmpp and Acc-NHS are added into deionized water to be dissolved, and a precursor solution is obtained; under the condition of high-speed mechanical stirring, dropwise adding a CaCl2 aqueous solution into the precursor solution, and continuously stirring, so that a sodium alginate chain segment and calcium ions are subjected to ionic cross-linking, and injectable ionic cross-linking hydrogel with the shear thinning characteristic is obtained; and adding HAp into the injectable ionic crosslinking hydrogel under the condition of keeping high-speed mechanical stirring, and continuously stirring to obtain the injectable photocuring hydrogel with the bone repair function. The hydrogel disclosed by the invention has excellent injectable performance, controllable light curing conversion capability, relatively high mechanical strength, wet interface adhesion performance and bone repair potential, and is expected to be used as a minimally invasive implantable medical device for repairing bone tissue injury.

The invention discloses a terminal upgrade global updating method and system, a vehicle, equipment, a medium and a product, and belongs to the technical field of automobile networking, the method comprises the steps that an updating package corresponding to a target service is acquired through a first system, and the updating package comprises a first application program of the target service on the first system and a second application program of the target service on the second system; at least one second application program of the target service on the second system, and the update package is configured to store the second application program in a second resource directory after the update package is installed; installing the update package through the first system; obtaining a second application program of the target service through a second system; executing upgrading and updating through the second system according to the second application program; wherein the first system is a system supporting hot update, and the second system is a system not supporting hot update. And other systems which do not support hot update can be endowed with hot update capability through the system which supports hot update. Script logic can be repaired through the cloud at any time, and convenience of problem repair is improved.