Displaying items by tag: grinding

US: Heidelberg Materials North America and Levy Group of Companies signed a granulated blast furnace slag (GBFS) supply contract on 9 August 2023. Under the contract, Levy Group of Companies will supply Heidelberg Materials North America with 400,000t/yr of GBFS for use in its slag cement production. Deliveries will begin in early 2024. Heidelberg Materials North America says that it has upgraded its Speed cement plant in Indiana to increase the efficiency with which it grinds GBFS. Following the inauguration of its nearby 2.4Mt/yr Mitchell cement plant in June 2023, Heidelberg Materials North America plans to transition the 1Mt/yr to 100% speciality and slag cement production. Levy Group of Companies will supply the GBFS from steel industry sites in the Midwest Region.

Heidelberg Materials Midwest US president Axel Conrads said “Our agreement with the Levy Group of Companies to secure a consistent supply of slag granules will help us accelerate the transition of the Speed plant to slag cement production and better meet the increasing demand for more sustainable cement products in the growing Midwest market.”

Sweden: Construction and engineering conglomerate Peab’s subsidiary Swecem has engaged German-based Gebr. Pfeiffer for the supply of one MVR 2500 C-4 grinding mill at its granulated blast furnace slag (GBFS) grinding plant in Oxelösund in Södermanland. The mill has four grinding rollers and a table diameter of 2.5m, giving it a 25t/hr slag grinding capacity.

Swecem operates a concrete plant in Kungsängen. It currently uses ground granulated blast furnace slag (GGBFS) supplied by Irish-based Ecocem’s 0.7Mt/yr Dunkirk grinding plant in France.

Nigeria: Sinoma International, a subsidiary of Sinoma, has signed two engineering, procurement and construction deals with Dangote Cement worth a total of US$370m. The first project, worth US$89m, is to build a slag grinding plant at Port Harcourt. The scope of the contract covers unloading slag and gypsum to packaging cement for shipping. The project is expected to take 20 months to complete.

The second project worth US$281m, is to build a 6000t/day clinker production line for Okpella Cement, a subsidiary of Dangote based in Edo state. The scope of the contract covers limestone crushing to packaging cement for shipping. The project is expected to take 27 months to produce cement and 30 months to complete.

Indonesia: Krakatau Semen is set to start producing ground granulated blast furnace slag (GBFS) at its Cilegon plant by December 2016. The joint venture between Krakatau Steel and Semen Indonesia is due to produce 300,000t/yr of slag powder, according to Bisnis Indonesia. The company has invested US$36m into building the plant. Construction started in 2014.

US: A site where Orcem California plans to build a US$50m slag grinding plant has been added to the Vallejo heritage list potentially adding planning complications to the project. Dina Tasini, the north Californian city’s planning manager, said that any possible future plans for the site must first receive a certificate of appropriateness, according to the Vallejo Times-Herald.

Orcem California, a subsidiary of Ecocem, is proposing to build and operate a slag grinding plant on the former General Mills flour mill site near to the Vallejo Marine Terminal. However, the project faces opposition from local environmental groups.

India: JSW Cement started building a 2.4Mt/yr cement grinding plant in January 2016 at Salboni in West Bengal. The US$119m plant will produce both Portland slag cement and ground granulated blast furnace slag (GGBS). It is planned to be finished in the first quarter of 2017. Environmental clearance for the project was granted in mid-January 2016.

Raw materials for the grinding plant include 0.74 – 095Mt/yr of slag and 1.50 – 1.76Mt/yr of clinker. The slag will be sourced from Tata Steel and the Steel Authority of India. Originally the site was intended for a 10Mt/yr steel plant, according to local media.

India: According to Reuters, KHD Humboldt Wedag International AG has signed a US$60.2m contract for equipment and services for eight slag grinding units in India.

US: Essroc Italcementi Group has signed an agreement with Holcim to purchase its slag cement grinding facility in Camden, New Jeresy. As part of the transaction, Essroc will also obtain Holcim's cement terminal in Everett, Massachusetts. The acquisition will finalise when the pending Holcim and Lafarge merger completes later in 2015.

"The acquisition of the Camden slag grinding facility reiterates Essroc's commitment to the northeast market," said Francesco Carantani, Essroc's president and chief executive officer. "With the focus on sustainability and durability, there is a projected growth in the demand and usage of slag cement."

The Camden facility can produce upwards of 700,000t/yr of slag cement. Essroc currently produces slag cement at its Picton, Ontario, and San Juan, Puerto Rico, cement plants and at its slag grinding facility in Middlebranch, Ohio. With the addition of Camden, Essroc has a combined annual production capacity in excess of 1Mt/yr. Holcim's staff in Camden and Everett will join Essroc once the transaction completes.

France: Holcim will sell its slag grinding plant in Dunkirk as part of divestments required by the European Commission (EC) to approve its merger with Lafarge.

The European Union's antitrust authority has required asset sales by both companies in regions where their activities overlap. The EC's approval is conditional upon the divestment of Lafarge's businesses in Germany, Romania and the UK. Holcim is required to divest its operations in France, Hungary, Slovakia, Spain and the Czech Republic. The proposed transaction concerns assets worth several billion Euros and will create the world's largest cement producer, with operations in 90 countries.

"The Commission had concerns that the transaction, as originally notified, would have had a detrimental effect on competition in a significant number of markets in the European Economic Area (EEA)," said the EC. "The commitments offered by the two companies address these concerns."

According to the EC, its assessment found that the merged entity would have faced insufficient competitive pressure from the remaining players in many markets. This would have brought a risk of price rises. In order to prevent a negative impact on competition, the companies have committed to divesting most of the operations where their activities overlap. Further, the EC said that Holcim and Lafarge will not be allowed to close the deal until it has approved the buyers of the assets put up for sale.