Patent ID: 7281840
Filing Date: 2007-10-16
Classification: B01F,B01J,G05D

Abstract:
1. An apparatus for formulating a batch, comprising: a tank; at least two chemical dispensing devices, each chemical dispensing device having an input and an output, each input coupled to a chemical supply; a manifold coupled to the output of each of the at least two chemical dispensing devices, the manifold having an outlet that is coupled to the tank such that chemicals dispensed from the chemical dispensing devices are transferred to the manifold and from the manifold into the tank; an analytical instrument for measuring the quantities of one or more ingredients in a chemical mixture, the analytical instrument coupled to the tank; a conduit configured to transfer fluid from the tank to the manifold, wherein fluid travels from the manifold to the tank and from the tank through the conduit back to the manifold to form a recycle loop; a controller coupled to the chemical dispensing devices and the analytical instrument, wherein the controller controls the flow of chemicals from the chemical dispensing devices and the flow of fluid through the recycle loop based on the measurements received from the analytical instrument.