Short answers, pulled from the story.
Charles Tennant received patent number 2209 on the 23rd of January 1798. This patent covered a new method using lime instead of potash to create a liquid that dissolved better in water.
By the early 1860s, the site produced 8000 tons of bleaching powder and 10,000 tons of soda ash annually. Hundreds of tons of soap also rolled off the line each year alongside these products.
The structure stood 350 feet tall to disperse fumes higher above the surrounding landscape after John Tennant conceived the idea in 1841. It aimed to solve persistent pollution problems plaguing local residents who suffered from respiratory issues and damaged crops due to emissions.
The plant could produce 35 tons per week or 100 tons monthly of recovered sulfur. One ton cost 61 shillings to extract using apparatus costing £2000 while maintaining excellent purity for industrial use.
The facility operated continuously from 1799 until its closure in 1964 spanning over 160 years of industrial history. No soda-based products emerged after 1892 leaving only sulfuric acid as output before the site closed completely.