Abstract: A system and method for computerized metering, rating, billing and managing of account balances on an end computing device is disclosed herein wherein the end device may facilitate such processing whether the device is connected or is not connected to a network. The end device, furthermore, initiates communications with a host processor to obtain updated algorithms, rating tables and other accouterments necessary or desired to meter, rate, and process payments for transaction events. The end device initiates communications with the host processor or another end device to facilitate the synchronization of usage for pricing plans that span one or more devices.

Abstract: The known process of separating molybdenum from a tungsten-molybdenum containing alkaline solution has been improved by carrying out the chemical reaction between the solution treated with sulphuric acid and an added sodium bisulphide solution in a continuous process within a multi-stage stirred-tank reactor system, whereby the freed hydrogen sulphide is recycled for absorption by the alkaline solution thus reducing substantially the amount of additional sulphuric acid required for the reaction.