References on salt production technologies
The single best source for quality information on salt production is the series of proceedings of International Salt Symposia co-sponsored by the Salt Institute going back to 1966.
For those interested in overviews and summaries, the following offer great choices:
"Salt Mines " -- one of the "Modern Marvels" series on The History Channel.
"Salt " -- another of the "Modern Marvels" series on The History Channel (release: December 2008)
"Salt " -- one of the "How Stuff Works" series on The Discovery Channel (release: January 2009)
"Salt of the Earth " -- Smithsonian Magazine (release: 1999)
"Production " -- MR BLOCH ARCHIVE
"Production " -- Salt Association (UK)
"Salt " by Rose Secrest on Encyclopedia.com
UNICEF has collected valuable information on technical questions involved in producing iodized salt
Solar saltworks - an environmentally friendly industry by Joseph S. Davis
Video: Discovery Channel's How Stuff Works: Solar salt production