The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is supported on a support.

The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is supported on a support.

An ion implantation system is provided having an ion source configured to form an ion beam from aluminum iodide. A beamline assembly selectively transports the ion beam to an end station configured to accept the ion beam for implantation of aluminum ions into a workpiece. The ion source has a solid-state material source having aluminum iodide in a solid form. A solid source vaporizer vaporizes the aluminum iodide, defining gaseous aluminum iodide. An arc chamber forms a plasma from the gaseous aluminum iodide, where arc current from a power supply is configured to dissociate aluminum ions from the aluminum iodide. One or more extraction electrodes extract the ion beam from the arc chamber. A water vapor source further introduces water to react residual aluminum iodide to form hydroiodic acid, where the residual aluminum iodide and hydroiodic acid is evacuated from the system.

A method of removing water from a mixture of hydrogen iodide (HI) and water includes providing a mixture comprising hydrogen iodide and water and contacting the mixture with an adsorbent to selectively adsorb water from the mixture, contacting the mixture with a weak acid to absorb water from the mixture and/or separating the water from hydrogen iodide (HI) by azeotropic distillation to produce anhydrous hydrogen iodide (HI).

The present disclosure describes a hydrogen sulfide decomposition process for converting hydrogen sulfide into hydrogen gas and sulfur dioxide. Such a process can significantly increase the amount of available hydrogen gas. In fact, if each Claus unit in the U.S. creating elemental sulfur in traditional systems were replaced by this hydrogen sulfide decomposition process, 1.83 million metric tons of hydrogen gas could be produced. This represents about 20% of the annual hydrogen produced in the U.S. for any purpose, recovered and available for reuse. Additionally, if desired, the sulfur dioxide can be further processed to form sulfuric acid.

A process for the manufacture of hydrogen iodide (HI) from hydrogen (H.sub.2) and elemental iodine (I.sub.2) dissolved in a suitable solvent with use of at least one catalyst selected from the group of platinum, palladium, nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide.

The present disclosure describes a hydrogen sulfide decomposition process for converting hydrogen sulfide into hydrogen gas and sulfur dioxide. Such a process can significantly increase the amount of available hydrogen gas. In fact, if each Claus unit in the U.S. creating elemental sulfur in traditional systems were replaced by this hydrogen sulfide decomposition process, 1.83 million metric tons of hydrogen gas could be produced. This represents about 20% of the annual hydrogen produced in the U.S. for any purpose, recovered and available for reuse. Additionally, if desired, the sulfur dioxide can be further processed to form sulfuric acid.

The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is supported on a support.

An ion implantation system is provided having an ion source configured to form an ion beam from aluminum iodide. A beamline assembly selectively transports the ion beam to an end station configured to accept the ion beam for implantation of aluminum ions into a workpiece. An arc chamber forms a plasma from the aluminum iodide, where arc current from a power supply is configured to dissociate aluminum ions from the aluminum iodide. One or more extraction electrodes extract the ion beam from the arc chamber. A hydrogen co-gas source further introduces a hydrogen co-gas to react residual aluminum iodide and iodide, where the reacted residual aluminum iodide and iodide is evacuated from the system.

Processes for producing and/or purifying hydrogen iodide (HI), including methods for removing iodine-containing species from a mixture including at least one iodine containing species and hydrogen iodide, as well as methods for removing elemental iodine and hydrogen triiodide from a mixture including at least one iodine containing species and hydrogen iodide.