the green river facility the green river facility
the green river facility
The General Chemical Green River facility is located on the "mile-high" prairies of southwestern Wyoming, home to the world's largest reserves of trona ore. The 67 billion tons of trona here extend over 1,000 square miles at depths of up to a third of a mile. And it's here, since 1968, that General Chemical has been mining and processing trona ore, the raw material of soda ash.

The facility, an underground trona mine and a surface refining plant that processes the ore into soda ash, is located about 40 miles west of Rock Springs and 175 miles northeast of Salt Lake City. It operates around the clock, seven days a week, 365 days per year.



The company mines more than 4.5 million tons-per-year of trona ore. Personnel and equipment enter the mine via a hoist that descends the 1,600 feet to the mine in two-and-a-half minutes. The mine has an underground tunnel network spanning 20-plus square miles. Open four-wheeled vehicles, provide transportation throughout the mine and to the production faces.


The surface plant converts trona ore to soda ash in a multi-step purification process.
  • The trona ore is precision crushed and screened to prepare it for processing
  • Green River Plant
  • The crushed trona is heated in a kiln to drive off unwanted gases. This heating process transforms the ore to crude sodium carbonate. Water is added, the crude sodium carbonate is dissolved and the resulting solution is filtered to remove impurities.
  • Green River Plant
  • Water is then evaporated from the purified solution to form a soda ash crystal slurry. Any remaining water in the slurry is separated from the soda ash crystals in a centrifuge. The soda ash crystals are then sent to rotary driers
  • Green River Plant
  • After screening, the finished soda ash is sent to storage bins until it is loaded for shipment via truck and railcars.
  • Green River Plant


General Chemical's estimated recoverable trona ore reserves consist of approximately 600 million tons, enough to provide approximately 100 years of reserves based on current operating rates.

click above or here for brochure

General Chemical
Industrial Products Inc.

120 Eagle Rock Avenue
East Hanover, NJ 07936
Tel: (973) 599-5500

Get Adobe Reader
Home   |   Soda Ash End-Use Markets   |   The Plant   |   Product Information   |   News & Info
Affiliations   |   Customer Log-In   |   Employees Access   |   Contact   |   Legal Notices
© 2016 General Chemical Industrial Products Inc. All Rights Reserved.   |   Site design: DoubleTake Design