6results about "Amidosulfonic acid" patented technology

The present disclosure relates to a lithium-ion-conducting material and a purification method therefor, and provides a lithium-ion-conducting material, which comprises lithium sulfonimide represented by the following general formula (I), wherein X and Y may be the same or different, and are each independently CmF2m+1 (m≥0). Further provided is a purification method for the lithium-ion-conducting material. The method of the present disclosure provides a lithium sulfonimide lithium-ion-conducting material having a high purity.

This invention discloses an apparatus for the continuous production of bis(fluorosulfonyl)imide intermediates. The apparatus includes a feed mixer with liquid and gas feed ports. The outlet of the feed mixer is connected to the top of a coil reactor via a pipe and is also connected to the inlet of the coil inside the reactor. The outlet of the coil connects from the bottom of the reactor to the top of a separator. A cooling tank is provided outside the coil. The separator has a by-product outlet at the top and a product outlet at the bottom. A steam heater is also provided inside the separator. This apparatus can directly separate the product and by-product, thereby achieving the goal of continuous production of bis(fluorosulfonyl)imide intermediates, increasing production scale and capacity, and ensuring smooth production operation. Furthermore, this apparatus can recover and reuse unreacted raw materials and solvents during the production process, reducing production costs.

This invention proposes an environmentally friendly and efficient method for preparing aminosulfonic acid, belonging to the field of chemical technology. It includes: (1) sulfonation reaction; (2) crude product filtration; (3) dissolution and crystallization; and (4) drying and packaging. The reaction process of this invention features mild reaction conditions, short reaction time, and a yield exceeding 97%. The process, using fuming sulfuric acid and urea at a lower temperature, significantly reduces polluting components in the waste gas. It has many advantages, including simple operation, low cost, high yield, and greater environmental friendliness.

The application provides a treatment method of bisfluorosulfone imide heavy residue, which comprises the following steps: reacting a raw material system comprising bisfluorosulfone imide heavy residue and an acidic aqueous solution to obtain a fluorine-containing acid liquid and an amino sulfonic acid crude product; wherein the fluorine-containing acid liquid can be used as a by-product acid to save treatment costs; the amino sulfonic acid crude product can also be directly sold as a product to reduce treatment costs, bring economic benefits, and realize resource recycling of the bisfluorosulfone imide heavy residue.

The application relates to the technical field, in particular to a sulfamic acid preparation device and a preparation method, which comprise a box body, a cleaning assembly and an in-out material assembly; the cleaning assembly comprises a cleaning shaft, rotating seats, transmission rods, scraping strips and mixing plates; the cleaning shaft is rotationally connected with the box body and penetrates through the box body; two rotating seats are fixedly connected with the cleaning shaft and are respectively arranged in the interior of the box body; a plurality of transmission rods are fixedly connected with the rotating seats and are respectively arranged on the outer sides of the rotating seats; four scraping strips are fixedly connected with the transmission rods and are respectively arranged in the middle of the transmission rods; the number of the mixing plates is four; four mixing plates are fixedly connected with the transmission rods and are respectively arranged in the middle of the transmission rods; and the in-out material assembly is connected with the box body, so that the problems that calcium sulfate and calcium carbonate scale bodies are easily formed in a reaction system, are attached to the inner wall of a reaction kettle and pipelines, heat transfer efficiency is reduced by more than 30%, the cleaning period of the equipment is shortened to 7-10 days, and the maintenance cost is increased are solved.

The present application relates to the technical field of chemical product purification, and particularly relates to a purification device and purification method for sulfamic acid, which comprises at least two cooling crystallization units arranged in series, each cooling crystallization unit comprises a crystallization container, a heat exchange assembly, a disturbance assembly and a temperature control unit, through the synergistic effect of the multi-stage cooling crystallization units and the independent temperature control units, the gradient fine temperature control of the sulfamic acid solution is realized, and the product purity is improved. A plurality of groups of heat exchange pipes arranged in parallel significantly increase the effective heat transfer area, and the solution turbulence and heat transfer efficiency are strengthened under the synergistic stirring of the disturbance assembly, and the energy consumption is reduced. At the same time, the disturbance effect effectively inhibits the adhesion and scaling of the crystals on the heat exchange surface, and the continuous production cycle is significantly prolonged in combination with the stable operation of the temperature control unit. By using the above structure, the high-efficiency, energy-saving and continuous industrial production target is realized while ensuring high purity.