3results about How to "Increase surface potential" patented technology

The invention discloses a method for removing high-valence ions and organic matters in a lithium-rich solution of brine, which comprises the following steps: carrying out first nanofiltration separation on the lithium-rich solution with the pH value of 3.0-6.0, carrying out second nanofiltration on a first trapped fluid to further separate and recover lithium, and carrying out third nanofiltration on the first trapped fluid and a first permeate to realize deep removal of the high-valence ions and the organic matters. According to the invention, three-stage nanofiltration is subjected to series-parallel configuration and design, so that the separation effect of lithium ions, foreign ions and organic matters is improved; an electric field is arranged to strengthen the nanofiltration process driven by pressure, the solute hydration state difference and the mass transfer rate are enhanced, and the separation performance is improved. According to the method provided by the invention, the removal rate of high valence ions in the lithium-rich liquid is gt; 99.9%, and the organic matter removal rate gt; and the lithium ion flux is improved by more than 20%. The process and the strengthening measure are a separation method with high universality, impurity ions and organic matters in different types of lithium-rich solutions can be removed, and large-scale industrial popularization is facilitated.

The application discloses a water-based wheel-rail friction modifier and a preparation method thereof, and raw materials include bentonite, talcum powder, molybdenum disulfide, modified zirconium phosphate, copper-based nanomaterial, silicon dioxide, magnetic iron oxide, sodium silicate, metal passivator, water-based epoxy resin, acrylic emulsion, water-based polyurethane, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, ethylene glycol, modified wheat straw powder, sodium dodecyl sulfate, antioxidant, AMP-95, defoaming agent and deionized water. After the above ingredients are weighed, they are sequentially stirred and mixed, and then are ground and homogenized to obtain a finished product. The application solves the problems of the existing water-based tread modifier, such as large friction coefficient fluctuation, easy failure at high temperature and metal corrosion of the water-based system.

A biomimetic silicification-enhanced catalyst and its preparation method are disclosed. The preparation method includes the following steps: S1: Urea, iron salt, and copper salt are added to a first solvent to obtain a mixed solution; S2: The mixed solution undergoes a hydrothermal reflux reaction to obtain particle units; S3: The particle units undergo a silicification reaction with ammonia and a silica precursor to obtain a catalyst. The catalyst prepared by this method can not only reduce its band gap by copper doping to utilize visible light as a reaction light source and reduce reaction conditions, but also inhibit the aggregation of catalyst particles by utilizing the mesoporous silica layer on the surface, expose more reaction sites, and limit the heat loss of the internal particle units, thereby increasing the reaction temperature. This can effectively improve the organic matter treatment effect of the catalyst. It adsorbs and degrades dyes in wastewater through two modes: electrostatic attraction and catalytic decomposition of hydrogen peroxide to generate strong oxidizing free radicals.