-
E-mail
fsun@leemanchina.com
- Phone
-
Address
A-1002 Junfeng Huating, No. 69 Beichen West Road, Chaoyang District, Beijing
Beijing Liman Technology Co., Ltd
fsun@leemanchina.com
A-1002 Junfeng Huating, No. 69 Beichen West Road, Chaoyang District, Beijing
The TOC content in the incoming brine of the chlor alkali chemical plant exceeded the standard, and was oxidized into chlorocarbon compounds in the electrolytic cell, which made the anode liquid produce foam. The foam blocked the flow of the gas generated in the anode chamber, affected the distribution of the electrolyte, and caused the local concentration to be too low,Affects the purity of chlorine gas.
Excessive TOC content in the chlor alkali industry can also cause ion membrane expansion and intermittent dehydration, while reducing the ability to prevent anions,Affects the current efficiency of the membrane.
The excessive TOC content in ion exchange membrane enterprises leads to an increase in the gas phase area of the anode chamber, uneven current distribution of the membrane, a decrease in the effective area of the membrane, an increase in the actual membrane current density, and an increase in the cell voltage. This is manifested after the cell is stopped and rinsed,The slot voltage has significantly decreased.
Excessive TOC content in chlor alkali plants also poses certain hazards to the anode coating, which canShorten the service life of the anode.
The excessive TOC content also causes fluctuations in the pressure of chlorine and hydrogen in the electrolytic cell, and the damage to the membrane cannot be ignored. Pressure fluctuations can stretch the membrane, and frequent friction between the anode and cathode can lead to prolonged tensionMake the film form pinholes.
The testing of TOC in the ion exchange membrane industry is of great significance.
Saturated salt water contains substances such as NaCO3 and NaHCO3 in addition to NaCl. The inorganic carbon content in the sample is very high, reaching tens or even hundreds of PPM, so the TOC content is 1-20ppm.
Each ion exchange membrane supplier has different TOC content limits. Chlorine Engineering and Asahi Kasei require TOC<10ppm for primary saltwater, while Wood and DuPont require TOC<7ppm.
Main features of Lotix
1Simple design, short analysis time, and low daily operating costs;
2Easy to maintain, all components such as heating furnaces and combustion tubes can be maintained within minutes;
3Wide linear range, only one calibration curve is needed to meet the analysis requirements of different content ranges;
4The software is easy to operate and can set up a marking line in less than 1 minute;
5Adopting a designed high-sensitivity non dispersive infrared detector (NDIR);
6During the analysis process, emergency samples can be added for optimal testing;
7Compliant with multiple domestic standards such as HJ 501-2009 Determination of Total Organic Carbon in Water Quality by Combustion Oxidation Non Dispersive Infrared Absorption Method.