New Brunswick
New Brunswick can produce 0.8 million tonnes KCl and 0.7 million tonnes of salt. There are 339 people employed at the division working in the underground mining operations, surface refinery and administration offices.
Two shafts access the salt dome. The potash mining horizons, which are between 400 to 700 meters (1,300 to 2,300 feet) below the surface, are located on the flank of an elongated salt structure. The ore is cut by continuous mining machines utilizing a cut-and-fill mining method. This method allows for a high extraction ratio while providing excellent ground conditions. The mined potash ore is transported by conveyor belt systems to a storage bin at the main shaft and hoisted 580 meters (1,900 feet) to the surface for processing.
After the potash ore has been crushed, screened and deslimed, the slurried ore is reagentized and pumped to a flotation circuit to separate the potash from the waste salt. Surplus brine from the closed loop process is evaporated in a vapor recompression evaporator, producing pure water, waste salt and saturated hot brine. The potash-saturated evaporator brine is combined with hot dissolver brine as a feedstock to the crystallizer circuit. White product from the crystallizer is combined with red product from flotation, centrifuged and dried in rotary dryers.
The fine-grained potash product is compacted, crushed and screened to produce granular and standard sized products. The potash products are stored on-site in warehouses with a combined capacity of 150,000 tonnes.
The rock salt located in the core of the salt dome structure is also extracted by continuous mining machines using a multi-level room-and-pillar mining method. The salt is conveyed to a storage bunker near the service shaft where it is crushed and screened, then hoisted to the surface and stored in one of two product warehouses. The open salt stopes are used to store extremely fine salt and clay waste materials and excess brine from the potash mill.
Transportation:
Potash – Over 95 percent of the product is shipped by rail to the Company's potash terminal at the Port of Saint John for export. Potash products are stored in two storage buildings with a combined 200,000-tonne capacity. The terminal's shiploading facility can load at a rate of 3,000 tonnes per hour onto vessels that hold up to 54,000 tonnes. The remaining 5 percent of the production is shipped by truck or rail to domestic customers.
Salt – The de-icing and chemical rock salt is shipped by rail or truck from the mine site or by vessel from the potash terminal in Saint John.
Sales – Sales markets potash products for destinations in Europe, South and Central America and Atlantic Canada.
Uses:
New Brunswick produces standard, fine standard, and granular grade potash for agricultural use.
Markets:
More than half of potash sales go offshore. In China, where farmers grow two or three crops a year, rice is the largest consumer. In Brazil, most is used on soybean, sugar cane and corn. In Malaysia, oil palm is the largest consumer of potash. In the US, corn is the major consumer of potash.