Knowledge for the Sulphuric Acid Industry
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DKL Engineering, Inc.
Acid Plant Database September 8, 2011
Office Chérifien des Phosphates Group (OCP)
|Background||1920 - OCP created
1975 - OCP Group created
Maroc Phosphore III-IV
|Plant 1||Plant 2||Plant 3||Plant 4||Plant 5||Plant 6|
|Coordinates*||33° 6' 30" N, 8° 36' 5" W||33° 6' 29" N, 8° 36' 2" W||33° 6' 27" N, 8° 35' 59" W||33° 6' 34" N, 8° 36' 2" W||33° 6' 32" N, 8° 35' 59" W||33° 6' 31" N, 8° 35' 56" W|
|Type of Plant||Sulphur Burning||Sulphur Burning||Sulphur Burning||Sulphur Burning||Sulphur Burning||Sulphur Burning|
|Gas Source||Elemental Sulphur||Elemental Sulphur||Elemental Sulphur||Elemental Sulphur||Elemental Sulphur||Elemental Sulphur|
|SA/DA||3/1 DA||3/1 DA||3/1 DA||3/1 DA||3/1 DA||3/1 DA|
Located on the Atlantic coast, 20 km to the South-West of El Jadida, the
Jorf Lasfar industrial complex started production in 1986. This new unit
allowed OCP Group to double its phosphate processing capacity. The site was
selected for its multiple advantages: nearness of the mining areas,
availability of a deep water port, access to substantial water reserves and
availability of land for future extensions.
The Jorf Lasfar complex is composed of three entities, including the Maroc Phosphore III-IV unit which was created in 1986. With the construction in 1997 of the Emaphos plant, in partnership with Prayon (Belgium) and CFB (Germany), OCP Group entered a new era of diversification of its finished products by producing a high value added acid, i.e. purified phosphoric acid. Two years later, the commissioning of Imacid, a partnership with Indian Birla Group, enabled it to increase its phosphoric acid production capacity by 25% on the Jorf Lasfar site.
Maroc Phosphore III-IV has an annual production capacity of 1.4 million tons P2O5 of phosphoric acid, 850,000 tons of Di-Ammonium Phosphate (DAP) and 850,000 tons equivalent DAP of other fertilizers.
The sulphuric acid plant has 6 production units of 2,650 tons per day. The process used is double absorption Monsanto. The phosphoric acid plant is composed of 8 phosphate rock crushing units, 8 lines of 29% P2O5 phosphoric acid, 20 concentration units, 8 clarification units, 4 54% P2O5 acid filtration units, as well as a pre-treatment unit. Manufacturing is made according to the French Rhone-Poulenc process.
The fertilizer plant includes 4 DAP production units, of which 2 can also produce TSP, granulated MAP and NPK (for the local market). The basic process used is AZF double tubular reactor for DAP and AZF agitated tank with slurry pumping for TSP. This process was replaced by the pre-neutralizer and tubular reactor Jacobs process as part of the revamping programme.
MTPD - Metric Tonne per Day
STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption
* Coordinates can be used to
locate plant on Google Earth