Purifying and concentrating sulfuric acid.

[Hvoroba]

This is a summary of an industrial process for recycling sulfuric acid which I found somewhere on the internet:

Concentration-Sulfuric acid is heated at 100C at normal atmospheric pressure until all moisture (water) is vaporized and condensed seperately. When the concentration reaches < 98% thick white fumes appear.
Purification-The concentrated impure acid is then distilled at 340C at normal atmospheric pressure. The result should be < 98% pure sulfuric acid. During both procedures an oil bath is used to prevent steam explosions.

A. Are these procedures correct?
B. If yes, what details should I insist on when operating such a procedure?

Thank you.

[zaibatsu]

This has been covered already, and your last post was locked. DO NOT POST THIS AGAIN, unless you are told that you can.

[megalomania]

This section is only for nitric acid! Not sulfuric, phosphoric, acetic, hydrochloric, or any other acid, chemical, solvent, topic, issue, or anything else under the sun period.