6 results about "Perchlorate salt" patented technology

This invention relates to the field of carbon dioxide fracturing technology, specifically to a special powder for carbon dioxide activators and its large-scale preparation process. The special powder uses potassium perchlorate, salicylic acid, and ammonium oxalate as main raw materials, compounded with trace functional additives. The formula is scientifically controlled, possessing both high exothermic properties and inherent safety. The preparation process includes: pre-treating the raw materials followed by multi-gradient drying, graded ball milling and sieving, pre-mixing, homogenization and mixing, and secondary drying. The special powder prepared by this invention has a component uniformity deviation of ≤1%, a shelf life of up to 24 months at room temperature with sealing, 100% ignition reliability, and is compatible with various carbon dioxide fracturing devices, exhibiting significant safety, environmental, and economic advantages in mining, municipal engineering, and high-gas mines.

This invention provides a potassium perchlorate temperature-controlled stirrer, relating to the field of chemical engineering technology. It includes a housing, with a fixed plate fixedly connected to the inner wall of the housing. A motor is fixedly connected to the outer wall of the top of the housing, and a drive rod is fixedly connected to the drive end of the motor. The outer wall of the drive rod is rotatably connected to the inner wall of the housing. This invention employs multiple sets of bevel gears and stirring blades, allowing a single motor to simultaneously drive the stirring blades and stirring rod to rotate in opposite directions. This enables the two parts of the device to stir the solution in reverse, thereby accelerating the stirring rate. Furthermore, the stirring rod is hollow and equipped with an air jet structure, allowing for air jetting into the solution during stirring, further accelerating the reaction rate. Additionally, the stirring blades are adjustable, allowing for changes in their lateral area to increase the stirring range. This provides better stirring results for different stirring conditions, enhancing its practicality.

The utility model relates to the potassium perchlorate precipitation field especially relates to a needle type potassium perchlorate precipitation filtering device. Including the precipitation box, first cooling precipitation mesh plate and second cooling precipitation mesh plate, the precipitation box main part is square box structure, the inside of precipitation box is vertically arranged with a plurality of first cooling precipitation mesh plate and second cooling precipitation mesh plate, first cooling precipitation mesh plate and second cooling precipitation mesh plate level from one side first insertion port and second insertion port insert, first cooling precipitation mesh plate and second cooling precipitation mesh plate staggered arrangement, the top middle part of precipitation box is provided with liquid inlet. Through the refrigeration of refrigerating machine to the precipitation box, makes inside keep a temperature that can fast precipitate, the structure of first cooling precipitation mesh plate and second cooling precipitation mesh plate can make solution can quickly spread, thereby make the precipitation effect better, first cooling precipitation mesh plate and second cooling precipitation mesh plate can be quickly replaced after the precipitation is complete.

The utility model relates to wastewater recovery technical field, the utility model provides a system of recycling potassium perchlorate, sodium chloride in wastewater, the system includes MVR evaporation crystallization device, MVR centrifugal device, cooling crystallization device, cooling centrifugal device, anti -dissolution device, anti -dissolution centrifugal device, frozen crystallization device, frozen centrifugal device. The utility model utilizes the different features of the concentration and solubility of potassium perchlorate, sodium chloride in wastewater, first evaporates and concentrates under high temperature condition and precipitates sodium chloride, then precipitates potassium perchlorate by cooling, and the precipitated potassium perchlorate is purified by anti -dissolution and frozen crystallization, and the mother liquor is recycled in the process. Through the above technical scheme, potassium perchlorate and sodium chloride are effectively separated and recovered, the comprehensive utilization of wastewater is realized, and the technical problem of low product quality in the prior art is solved.

This invention provides a boron-based composite energetic material with sodium molybdate assembled with an oxidant and its preparation method. The material includes a boron matrix, an energetic oxidant assembled on the boron matrix, and sodium molybdate dispersed within the energetic oxidant. The boron matrix is ​​boron powder, mono-modified boron powder, or binary modified boron powder. The energetic oxidant is ammonium perchlorate, ammonium nitrate, or potassium perchlorate. The morphology of the boron-based composite energetic material is rough-surfaced spherical particles. The ignition delay time of the boron-based composite energetic material with sodium molybdate assembled with an oxidant prepared by spray drying is 37-30 ms, which is half that of boron powder or surface-modified boron powder; the oxidation peak temperature of this composite energetic material is 560-533℃, which is more than 100℃ lower than that of boron powder or surface-modified boron powder.

The application provides a kind of oxidant agglomerated multi-element boron-based composite energetic material and preparation method, and the multi-element boron-based composite energetic material is made of energetic oxidant, boron powder, metal element and metal oxide;The energetic oxidant is ammonium perchlorate, ammonium nitrate or potassium perchlorate.The metal oxide is titanium dioxide, bismuth oxide, vanadium oxide or molybdenum oxide.The metal element is molybdenum, magnesium or aluminum.The morphology of multi-element boron-based composite energetic material is rough surface spherical particle.In the application, the preparation method of one pot is used, and the energetic oxidant, boron powder, metal element particle and metal oxide particle are uniformly dispersed in water to form a solid-liquid mixed feed liquid, and the spray drying technology is used to prepare the spherical particle sample composed of numerous particles, which has the technical advantages of simple preparation, high efficiency, good repeatability and low cost.The multi-element boron-based composite energetic material has lower oxidation peak temperature and higher combustion heat value, and has very good application prospect.