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| Sulphuric Acid on the WebTM | Technical Manual | DKL Engineering, Inc. |
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Acid Plant Database October 21, 2025
| Owner | Industries Chimiques du Sénégal (I.C.S.) |
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| Location |
Darou Khoudoss |
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| Background |
1957 - Founding of the Compagnie Sénégalaise des Phosphates de TAÏBA (CSPT)
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| Website | |||
| Plant | Darou 1 | Darou 2 | Darou 3 |
| Coordinates* | 15° 5' 52" N, 16° 50' 59" W | 15° 5' 52" N, 16° 50' 53" W | - |
| Type of Plant | Sulphur Burning | Sulphur Burning | Sulphur Burning |
| Gas Source | Elemental Sulphur | Elemental Sulphur | Elemental Sulphur |
| Plant Capacity | 3000 MTPD | 3000 MTPD | 700 MTPD |
| SA/DA | - | - | - |
| Status | Operating | Operating | Planned |
| Year Built | 1984 | 2001 | - |
| Technology | Krebs and Cie | Krebs-Spiechim/Technip | - |
| Contractor | - | Chemoprojekt - Detail design of piping and mechanical part, civil part, electrical part and steel structure plant. |
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| Remarks | 2 TGs | 1 TG | - |
| Pictures |   
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| General | Industries Chimiques du Senegal (ICS) is the largest producer of phosphate fertilizer products in Sub-Saharan Africa. Indorama acquired ICS in 2014. The company began mining of phosphate rock in 1960 and production of phosphoric acid in 1984. ICS is the largest industrial complex in Senegal and consists of three sites. The mine site is located 100 km from the capital of Dakar and has extensive reserves of high quality phosphate ore. The phosphoric acid plants are located in Darou and have a production capacity of 600,000 tons per year. The downstream fertilizer plant is located in Mbao, which is close to Dakar. The fertilizer plant can produce 250,000 tons per year of DAP and NPK products. ICS has well integrated logistics, including access to the railway system, its own fleet of locomotives and wagons, and dedicated berth at Dakar port. ICS exports the majority of its phosphoric acid to India, while it sells its fertilizer products in West Africa and international markets. | ||
| References | - | ||
| News |
October 13, 2025 -
Singapore-based Indorama Group, through its local subsidiary Industries
Chimiques du Sénégal (ICS), has signed a memorandum of understanding with
Senegal’s Investment and Major Projects Promotion Agency (APIX) for a $210
million investment program, according to a report by the local media outlet
APS. The investment plan, finalized during the Senegal Investment
Forum held on October 7-8, will be implemented over three years, from 2025
to 2028. The 126 billion CFA franc program will finance projects aimed at
strengthening Senegal’s phosphate industry, ICS management said. The
company plans to upgrade its Mbao fertilizer plant to raise annual NPK and
DAP production capacity to 400,000 tons, up from the current 250,000 tons.
The program also includes the construction of a Single Super Phosphate (SSP)
unit with a capacity of 350,000 tons per year. In addition, ICS will expand
phosphoric acid production at its Darou facilities to 660,000 tons annually
and build a sulfuric acid plant with a daily production capacity of 700
tons. These projects represent a major expansion of ICS’s fertilizer
production capacity. The increased output could allow Indorama to capture a
larger share of Senegal’s fertilizer market, which is expected to grow in
the coming years. Data from the National Agency for Statistics and
Demography (ANSD) show that Senegal imported an annual average of about
126,484 tons of fertilizer, valued at nearly 55.1 billion CFA francs ($97.4
million), between 2020 and 2024. The country’s fertilizer use rate remains
one of the lowest in West Africa. In 2022, Senegal’s fertilizer
application rate was estimated at 8.5 kg per hectare of arable land — about
three times lower than the sub-Saharan African average of 18.5 kg, and six
times below the 50 kg target set by the African Union at the 2006 Abuja
Fertilizer Summit. According to the International Fertilizer
Development Center (IFDC), Senegal’s apparent fertilizer consumption
averaged 164,000 tons between 2018 and 2022, with NPK accounting for 50%,
urea for 30%, DAP for 7%, and potassium muriate for 3%. In line with
the 2024 Nairobi Declaration on Fertilizer and Soil Health, Senegal, along
with other participating African nations, has committed to tripling national
production and distribution of certified organic and inorganic fertilizers
by 2034 to improve access and affordability for smallholder farmers. |
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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
