Personnel Safety

One of the most important safety considerations with cleaning-type molten salts is properly designed equipment. As discussed in the section "Salt Bath Equipment" of this article, a common hood structure over the salt bath, quench and rinse tanks, and sludge removal zone forms an effective barrier between the operator and the process (Fig. 3, 4). Operators must have a thorough understanding of the process, receive adequate training, and comply with standard operating procedures and process user's guides.

The molten salt is both a thermal and a chemical hazard to the worker. As with any high-temperature molten process, the salt will burn human tissue. Because many of the compounds used in formulating these salts rely on caustic alkalis, contact with molten or dry salt also poses a risk of chemical burns. All operating personnel, along with plant safety and hygiene monitors, should be familiar with the proper handling procedures for these compounds and the appropriate response procedures. This information is generally contained in the supplier's Material Safety Data Sheet for the specific process chemical being used.

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