3results about How to "High salt concentration" patented technology

The invention discloses a methyl modified hydrogel electrolyte, a preparation method thereof and application of the methyl modified hydrogel electrolyte in a zinc battery, and belongs to the field of secondary batteries. The hydrogel electrolyte is composed of acrylamide, methyl cellulose and zinc sulfate. The preparation method comprises the following steps: adding methyl cellulose and acrylamide into a zinc sulfate solution, uniformly mixing, then adding a potassium persulfate initiator and a cross-linking agent N, N '-methylene bisacrylamide, finally putting into a double-layer glass plate, sealing, and carrying out thermal polymerization. The methyl cellulose has zinc affinity and can convert an acrylamide proton polymer into an aprotic polymer to weaken intermolecular hydrogen bonds, so that free hydrogen bond receptors are released to participate in cationic solvation. The solubilization and recrystallization strategy can effectively adjust the gel electrolyte environment, cut off hydrogen bonds formed by binding water donors and participate in electrolyte salt dissolution, so that the electrolyte concentration is increased, and salting-out of the electrolyte is inhibited. When the gel electrolyte is applied to the zinc battery, zinc ion migration can be accelerated, and excellent cycle performance under a low-temperature condition is realized.

The invention belongs to the technical field of natural gas storage, and discloses a salt cavern gas storage building method based on twin-well cavity building, comprising: S1, determining the site of a salt cavern gas storage, deploying a cluster well site within the range of the site, the cluster well site comprising a plurality of salt cavities corresponding to the same well site platform; s2, each salt cavern is built through double wells, the double wells comprise the first well and the second well, and the distance between the center line of the first well and the center line of the second well ranges from 20 m to 40 m; and S3, after twin-well cavity construction is completed, gas injection and production are conducted on the salt cavity. According to the method, the cavity construction speed can be increased, the library construction period is shortened, and the overall construction cost is reduced.

A continuous production apparatus for nylon 66 includes a concentration tank, a prepolymerization reactor, and a final polymerization reactor. The inlet of the concentration tank is connected to a nylon 66 salt solution device, and the outlet of the concentration tank supplies feed to the prepolymerization reactor via a reaction preheater. The outlet of the prepolymerization reactor supplies feed to the final polymerization reactor via a feeding pipeline and a flash evaporator. The feeding pipeline is connected to a titanium dioxide suspension device. This invention has a simple structure, is easy to operate, and can continuously produce high-quality full-matte / semi-matte nylon 66 materials.