New technology of Inhibition for Styrene Polymerization (TISP)

TISP is a non-traditional technology applying Inhibitor, well soluble in hydrocarbons, not containing heavy metals, nitroaromatics and sulfur. TISP is based on the new principles of Inhibition.
TISP is protected in 14 countries of the world (US Patent N 5488192, PCT Application IB 94/00240, Patent Korea N 4882/96, Russia Application 93-037814).
TISP is used in the styrene and isoprene Industries. In order to avoid polymer formation since 1978 inhibitor has been used for the process of styrene distillation by ethylbenzene dehydrogenation and since 1982 for styrene distillation by methylphenylcarbinol dehydration (or by ethylbenzene hydroperoxide).
TISP means very low toxicity and easy handling.

The TISP characteristics are as follows:

• High effectiveness for polymerization inhibition, which does not adversely affect the quality of styrene monomer product.
• TISP enables to reduce tar content in the product in comparison with any other conventional inhibitors. Tar can be used as a fuel or for anticorrosion coatings production.
• TISP does not cause any environmental pollution.
• Inhibitor of TISP can be injected continuously in a closed system.
• TISP components are low toxycal.
• TISP inhibits polymerization in a vapor phase.
• Thermal stability of inhibitor components is more than 250° C.
• Inhibitor solubility in aromatic solvents is very high.
• Inhibitor is insoluble in water.
• TISP protects against equipment corrosion.