The present invention belongs to the field of electrochemical synthesis, and specifically relates to a green production process for an iodate. The process comprises preparing lithium iodate by means of an electrolysis method, and then reacting the prepared lithium iodate with an iodide to prepare the iodate. In the process, a mother liquor is recycled, no effluent waste is produced, a product yield is high, and the generation of a large amount of waste salt is avoided. The process is green and environmentally friendly. During the synthesis process of preparing lithium iodate by means of an electrolysis method, using a clean electrolysis process does not require the addition of an oxidant and other additional original auxiliary materials as required by a chemical method, the original auxiliary materials are simple, and a produced iodate product has a high quality.

Green production process for iodate

The invention relates to the field of potassium iodate synthesis, and discloses an electrochemical co-production method of potassium iodate and hydroiodic acid. The electrochemical co-production method specifically comprises the following steps: compounding an anolyte solvent; compounding an anolyte; completely dissolving a certain amount of iodine and potassium hydroxide in a solvent of the anolyte according to a certain proportion, and uniformly stirring to obtain an anolyte; compounding a solvent of a catholyte; compounding a catholyte; dissolving iodine and iodide salt in a solvent of thecatholyte according to a certain proportion and a certain concentration, and uniformly stirring to obtain the catholyte; performing electrolysis; carrying out electrolytic reaction by adopting a double-chamber electrolytic cell separated by a cationic membrane; adding the compounded anolyte into an anode chamber, and adding the catholyte into a cathode chamber; performing crystallization; and stopping the electrolytic reaction after a certain electric quantity, cooling the anode mother liquor to a certain temperature for crystallization, and filtering to obtain potassium iodate after the anodemother liquor is crystallized. The synthesis method only comprises the steps of electrolysis, crystallization and filtration and is simple and has low requirements on production conditions without environmental pollution and avoids safety accidents.

Electrochemical co-production method of potassium iodate and hydroiodic acid

The invention discloses a multistage electrolytic cell The multistage electrolytic cell comprises a support, an electrolytic cell mechanism and a cooling mechanism, the electrolytic cell mechanism comprises a cell body, a liquid inlet and outlet part, an exhaust part, a liquid suck-back part and a cover plate, a plurality of partition plates are arranged in the cell body, the partition plates divide an inner cavity of the cell body into a plurality of electrolytic cells, an electrode plate mechanism, flow guide mechanisms symmetrically arranged at the two ends of the electrode plate mechanismand a locking mechanism for positioning the electrode plate mechanism are arranged in each electrolytic cell, and the cover plate is provided with a plurality of positioning grooves for the electrodeplate mechanisms to be inserted The device is simple in structure, reasonable in design, low in cost, convenient to install and use and high in material corrosion resistance, the cooling mechanism is arranged to regulate the electrolysis temperature, the flow guide mechanism is arranged to enable the electrolysis rate to be uniform, the locking mechanism is arranged to isolate the multiple electrode plates and completely isolate the multiple electrode plates from electrolytic cell wall plates, short circuit of the electrode plates is avoided, and safety and reliability are high

Multistage electrolytic cell

The present invention relates to a method for obtaining potassium iodate from iodine and potassium hydroxide in the continuous, multistage and sequencial electrolyzing course of potassium iodide solution. Said method consists of a multi-stage cascading electrolytic cells system to continuously electrolyze potassium iodide solution.

Process to obtain potassium iodate from iodine and potassium hydroxide based upon continued, multi-stage and serial electrolysis of potassium iodide solutions

Arce Walter L

Papers

Process to obtain potassium iodate from iodine and potassium hydroxide based upon continued, multi-stage and serial electrolysis of potassium iodide solutions