5results about How to "Prevent reuse" patented technology

The invention belongs to the technical field of extraction of lithium from oilfield brine, and discloses a purification method and system for extraction of lithium from oilfield brine and high-impurity lithium-rich liquid. The purification method comprises the following steps: step 1, adding a sodium hydroxide solution into the high-impurity lithium-rich liquid to adjust the pH value, then adding a sodium carbonate solution, carrying out stirring reaction, and carrying out plate-frame pressure filtration to obtain filter residues and filtrate; step 2, performing ceramic ultrafiltration on the filtrate to obtain produced water and concentrated water, and returning the concentrated water to the step 1 to participate in the stirring reaction again; and step 3, regulating the pH value of the produced water with hydrochloric acid, using the regulated produced water as an adsorption stock solution, and adsorbing and desorbing the adsorption stock solution with an aluminum adsorbent to obtain a purified lithium-rich solution. According to the method, aiming at the situation that a large amount of divalent metal ion impurities such as calcium and manganese are contained in the oil field brine lithium extraction lithium-rich liquid, after preliminary impurity removal is carried out through chemical precipitation, deep impurity removal is carried out in combination with ceramic ultrafiltration and the aluminum adsorbent, the service life of the ceramic ultrafiltration and the aluminum adsorbent can be effectively prolonged, and the recycling of ceramic ultrafiltration concentrated water can also improve the yield of lithium ions.

The application relates to the technical field of image processing, can be applied to business scenes such as financial technology and medical health, and discloses an image processing method and device based on a task identifier, equipment and a medium, which comprises the following steps: acquiring original image data and converting the original image data into a preset image format to generate standardized image data; binding the standardized image data with a task identifier to form composite image data; selecting a perception module from a task library according to the task identifier, processing the composite image data to generate first intermediate feature data; inputting the first intermediate feature data into an image processing core network to generate second intermediate feature data; and selecting an output module according to the task identifier to process the second intermediate feature data to generate target image data. Through the module selection mechanism driven by the task identifier, the application realizes automatic adaptation of various image processing tasks in a unified image processing process, and improves the task configuration flexibility and image processing efficiency.

This utility model discloses a luminous label with a self-destructing disassembly structure, comprising a light-emitting sheet assembly, a strong adhesive film layer, and a detachable circuit assembly. The circuit assembly includes an ultra-thin switch module and a Micro LED flexible light-emitting module. The ultra-thin switch module is bonded between the Micro LED flexible light-emitting module and the strong adhesive film layer, and the Micro LED flexible light-emitting module is bonded between the light-emitting sheet assembly and the strong adhesive film layer. One side of the strong adhesive film layer is used to fix it to the side wall of the bottle container, and the other side of the strong adhesive film layer is bonded to the light-emitting sheet assembly and the ultra-thin switch module. The side of the strong adhesive film layer facing the bottle has a reinforcing double-sided adhesive attached next to the recycling handle. This utility model has the function of easily removing the luminous bottle label from the bottle after use, and has automatic damage and waterproof functions. The ultra-thin, easily recyclable luminous bottle label has excellent flexibility and can adapt to the surface of various curved wine bottles. It is beautiful, environmentally friendly, and highly practical.

This invention discloses a method for generating unique identifiers based on RAM tags. The first step involves receiving commands from higher-level software via a command processing module. The second step involves identifying and processing the command type using the command processing module. An initialization module and a control logic module receive and process the commands issued after parsing and identification by the command processing module. These processing operations include creating a unique identifier, destroying the unique identifier, and initializing the RAM. This invention utilizes the characteristics of the RAM to simultaneously achieve serial and parallel searching, processing multiple tags at once and shortening the delay in generating unique identifiers. During processing, a temporary 24-bit counter is divided into two parts: one part indexes the RAM to obtain multiple tag outputs, and the other part indexes these tag outputs in parallel, enabling simultaneous checking of available positions for multiple tag outputs. Furthermore, through accumulator and scrambling processing, the generated identifiers are randomized, avoiding the reuse of recently destroyed identifiers.

The invention discloses a catalyst for catalytic synthesis of lactide, a preparation method and a method for catalytic synthesis of lactide. The catalyst is prepared by a sol-gel method to obtain a ZnO-SnO substrate, and SO4 2‑ Modification is performed; at the same time, the catalyst is loaded with a polymerization inhibitor of formula I during the process of preparing the catalyst. The catalyst prepared by the present invention has strong thermal stability and is easy to regenerate, and can replace organic zinc / tin catalysts. The catalyst of the present invention is used for high-temperature depolymerization of lactic acid prepolymer to obtain lactide, and the product has high yield and high optical purity, and no high molecular weight still polymer is generated, thereby avoiding the influence of high molecular weight still polymer on recycling, and can effectively simplify the reaction process and reduce production costs.