Reactor with high-pressure autoclave

stirred-tankprocessfully automated

Amar has been the pioneer, largest manufacturer, and exporter of high pressure stirred autoclave reactors and systems in India since past over 40 years. Almost all chemical laboratories and process development facilities will have a stirred pressure reactor and very often from Amar. The come in a range of sizes from the very tiny (see specs below) to several hundred litres in size. The stirred pressure reactor is a very versatile piece of equipment. It can be used to carry out various types of reactions such as Liquid (single phase), Liquid-Liquid (multiple phases), Gas-Liquid, and Gas Solid Liquid. For example, various aldol condensations use organic reagents that form a single liquid phase but the catalyst is a mineral acid or base e.g., H2SO4 or NaOH which will form a separate aqueous phase. Such organic and aqueous phases are often immiscible and that makes stirring crucial to getting high reaction rates since otherwise, mass transfer limitations control the reaction rates. Other types of reactions include Hydrogenations which are often of a Gas-Solid-Liquid nature where a solid metal catalyst such as Platinum on Carbon is used. In such cases, high stirring rates are imperative for both the suspension of solid catalysts (avoid settling at the reactor bottom) and also for the reinduction of gaseous hydrogen from the vapor space to liquid. Special impeller and agitator designs e.g. hollow shafts are available for these applications. Pressure reactors allow users the ability to increase reaction rates by using higher Temperatures which in turn generate autogenous pressures.