Controlling Exothermic Processes

Plastic cooling towers help ensure that reactions between harsh chemicals are kept under control and that processes are not interrupted.

Like other chemical manufacturers, the staff at Kuehne Chemical Co. Inc. knows that you have tocontrol the chemical reactions involved in making products, particularly products that involve thereaction between harsh chemicals. One of the prime enemies of controlling a chemical reaction is the excessive heat generated by the reaction itself, which can make a process unstable and corruptthe outcome. This can causes product quality problems and introduce elevated hazardous conditions. Based in South Kearny, N.J., Kuehne Co. is a privately held chemical manufacturer with a core competency of manufacturing concentrated solutions of bleach (sodium hypochlorite). The bleach is shipped to customers who dilute it for use inapplications such as water and wastewater treatment, paper processing, and cleaning and disinfection products. Kuehne also repackages and distributes semi-bulk chlorine, caustic soda and caustic potash — chemicals that are used in the bleach production process. The manufacturing of bleach — Kuehne Co.’s primary product — involves the production of a concentrated ultra pure brinesolution, explains Richard Wilkes, director of corporate engineering. Through electrolysis, a chlorine molecule is split awayfrom the brine. The resulting gaseous chlorine is quickly reacted with sodium hydroxide, and the resulting “fused” product isbleach. “It appears to be a fairly simple process, but we have to control the heat of reaction in the bleach-making process,” says Wilkes. To read the full article, click here:

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