Hydrogen chloride dehydration method
AssigneeTokuyama Corporation
InventorsJunya SAKAI, Shoji IIYAMA
Life of this patent
Estimating the term…
Abstract
A dehydration method in accordance with an embodiment of the present invention includes: a first dehydration step of bringing hydrogen chloride gas (21) and concentrated sulfuric acid (13A) into contact with each other; and a second dehydration step of bringing hydrogen chloride gas (21A) that has been obtained through the first dehydration step into contact with concentrated sulfuric acid (13B). A concentration of the concentrated sulfuric acid used in the second dehydration step is higher than a concentration of the concentrated sulfuric acid used in the first dehydration step.
Claims7
A hydrogen chloride gas dehydration method of dehydrating hydrogen chloride gas through a multi-step process, the method comprising:
- a first dehydration step of bringing hydrogen chloride gas and concentrated sulfuric acid into contact with each other;
- and
- a second dehydration step of bringing hydrogen chloride gas that has been obtained through the first dehydration step into contact with concentrated sulfuric acid,
- wherein a concentration of the concentrated sulfuric acid used in the second dehydration step is higher than a concentration of the concentrated sulfuric acid used in the first dehydration step.
Dependencies are inferred from the claim text.