DESCRIPTION:
The electrolysis of a solution of an alkaline chloride, such as brine (NaCl), has been widely utilized as a method for producing chlorine and caustic. The sodium ion travels to the cathode during the process, such that sodium hydroxide (NaOH) and hydrogen gas are produced at the cathode. The chlorine ion travels to the anode and gaseous chlorine is evolved, although a small portion of the gaseous material may become dissolved in the brine solution. Brine may be continuously supplied to a chamber or cell at the zone of the anode and caustic may be continuously withdrawn from the cell at the zone of the cathode. At the same time gaseous chlorine and hydrogen may be separately withdrawn overhead from the cell. In modified cells which employ mercury, the mercury acts as a cathode and sodium traveling thereto becomes amalgamated with the mercury. Otherwise the mercury cells operate in a manner similar to the electrolysis cell.
At the present time, graphite anodes are in general use in alkaline chloride electrolysis operations, however, there have been certain disadvantages which arise from the use of graphite. One serious disadvantage is the attrition of the graphite during the electrolysis operation. Attrition results in increasing the clearance or spacing of anode and cathode which in turn causes an increase in the cell voltage drop and a decreasing efiiciency of operation. Also, resulting graphite particles tend to plug the diaphragms which divide the cells and shorten their service life. In mercury cells, graphite particles float on the surface of the mercury and serve as focal points for decomposition of the amalgam, causing the release of hydrogen which in turn contaminates the chlorine and reduces the over-all efficiency of the process.
For more information, please feel free to contact us chloralkali@tiaano.com or visit our webpage www.tianode.com
Will share our credentials (client list, performance certificate, etc.) based on email request.
Ti Anode Fabricators Pvt. Ltd.
No. 48, Noothanchary, Madambakkam,
Chennai - 600 126, I N D I A.
Email: chloralkali@tiaano.com Web: www.tianode.com
2ce3994b-e571-486b-a785-34b230cdf9b2|0|.0|27604f05-86ad-47ef-9e05-950bb762570c