Vertical desublimation apparatus for crystalline iodine production, comprising: a gas intake, through which vapor can be fed into the apparatus, and a gas exhaust, through which residual air can be discharged; at least one downstream duct comprising a downstream duct inlet and a downstream duct outlet, wherein the intake is fluidically connected to the downstream duct inlet; at least one upstream duct comprising an upstream duct inlet and an upstream duct outlet, wherein the exhaust is fluidically connected to the upstream duct outlet; at least one downstream condenser pipe arranged adjacent to the downstream duct and at least one upstream condenser pipe arranged adjacent to the upstream duct, wherein a cooling medium can be fed through the condenser pipes; a collecting receptacle for collecting crystallized iodine and liquid water arranged at the bottom of the apparatus, fluidically connecting the downstream duct outlet and the upstream duct inlet, the collecting receptacle having a bottom outlet.

Vertical desublimation apparatus for crystalline iodine production, comprising: a gas intake, through which vapor can be fed into the apparatus, and a gas exhaust, through which residual air can be discharged; at least one downstream duct comprising a downstream duct inlet and a downstream duct outlet, wherein the intake is fluidically connected to the downstream duct inlet; at least one upstream duct comprising an upstream duct inlet and an upstream duct outlet, wherein the exhaust is fluidically connected to the upstream duct outlet; at least one downstream condenser pipe arranged adjacent to the downstream duct and at least one upstream condenser pipe arranged adjacent to the upstream duct, wherein a cooling medium can be fed through the condenser pipes; a collecting receptacle for collecting crystallized iodine and liquid water arranged at the bottom of the apparatus, fluidically connecting the downstream duct outlet and the upstream duct inlet, the collecting receptacle having a bottom outlet.

The present invention relates to a vertical column apparatus (1) for mass exchange processes in the chemical, oil or gas industry and in particular, for the production of iodine from formation water of oil and gas fields, comprising: a gas outlet (2) at the top and a liquid outlet (3) at the bottom of the column (1); a packed section (4) between the top and the bottom of the column (1), wherein the column (1) has a liquid inlet (5) above the packed section (4) and a gas inlet (6) below the packed section (4), wherein an upper portion (7) of the column (1) has a larger diameter (d.sub.u) compared to a diameter (d.sub.p) of the packed section (4).

The present invention relates to a vertical column apparatus (1) for mass exchange processes in the chemical, oil or gas industry and in particular, for the production of iodine from formation water of oil and gas fields, comprising: a gas outlet (2) at the top and a liquid outlet (3) at the bottom of the column (1); a packed section (4) between the top and the bottom of the column (1), wherein the column (1) has a liquid inlet (5) above the packed section (4) and a gas inlet (6) below the packed section (4), wherein an upper portion (7) of the column (1) has a larger diameter (d.sub.u) compared to a diameter (d.sub.p) of the packed section (4).

The present invention relates to a method for extracting iodine from an aqueous solution, the method comprising the steps: Providing an aqueous solution containing iodide ions; Heating the aqueous solution containing iodide ions; Adding an acid to the aqueous solution to arrive at a pH from 1.5 to 2.5; Adding an oxidizing agent to the aqueous solution to arrive at a E.sub.h from 570 to 590 mV; Desorbing iodine by means of an airflow.

The present invention relates to a method for extracting iodine from an aqueous solution, the method comprising the steps: Providing an aqueous solution containing iodide ions; Heating the aqueous solution containing iodide ions; Adding an acid to the aqueous solution to arrive at a pH from 1.5 to 2.5; Adding an oxidizing agent to the aqueous solution to arrive at a E.sub.h from 570 to 590 mV; Desorbing iodine by means of an airflow.

The present invention relates to a method for extracting iodine from an aqueous brine, the method comprising the steps: Providing an aqueous brine containing iodide ions; Heating the aqueous brine containing iodide ions; Adding an acid to the aqueous brine to arrive at a pH value from 2 to 4; Adding an oxidizing agent to the aqueous brine; Desorbing iodine by means of an airflow; Adding a sorbent for chemisorbing the iodine; Crystallizing the iodine; Purifying the iodine under a layer of sulfuric acid; Sublimation of the iodine.

The present invention relates to a method for extracting iodine from an aqueous brine, the method comprising the steps: Providing an aqueous brine containing iodide ions; Heating the aqueous brine containing iodide ions; Adding an acid to the aqueous brine to arrive at a pH value from 2 to 4; Adding an oxidizing agent to the aqueous brine; Desorbing iodine by means of an airflow; Adding a sorbent for chemisorbing the iodine; Crystallizing the iodine; Purifying the iodine under a layer of sulfuric acid; Sublimation of the iodine.

In a system and method for disinfecting a surface of an object with iodine-laden gas, a carrier gas generation means generates a gas stream, which is then directed into a chamber that includes an iodine source. As the gas stream enters and passes through the chamber, iodine is drawn and absorbed into the gas stream, creating an iodine-laden gas that exits the chamber. In some embodiments, the iodine-laden gas then travels from the chamber and is directed into an enclosure when it interacts with microbes contained on a surface of an object housed within the enclosure or otherwise engaged by the enclosure. In other embodiments, as the iodine-laden gas exits the chamber, it is directed to a nozzle, via which the iodine-laden gas is applied to the surface of the object to be disinfected.

In a system and method for disinfecting a surface of an object with iodine-laden gas, a carrier gas generation means generates a gas stream, which is then directed into a chamber that includes an iodine source. As the gas stream enters and passes through the chamber, iodine is drawn and absorbed into the gas stream, creating an iodine-laden gas that exits the chamber. In some embodiments, the iodine-laden gas then travels from the chamber and is directed into an enclosure when it interacts with microbes contained on a surface of an object housed within the enclosure or otherwise engaged by the enclosure. In other embodiments, as the iodine-laden gas exits the chamber, it is directed to a nozzle, via which the iodine-laden gas is applied to the surface of the object to be disinfected.