Cement News tagged under: Raw Materials
Grinding terminals16 May 2023, Published under Cement NewsThe installation of grinding plants for the milling of cement and blastfurnace slag has rapidly increased in recent decades. With this shift in investment, there has been greater demand for flexible and compact grinding systems, ideally near raw material sources and often in remote areas. By Caroline Woywadt, Gebr Pfeiffer, Germany. Figure 1: MVR duty series, indicating ready2grind plants and grinding terminals For decades vertical roller mills (VRMs)have been in use in the ceme... |
Bamburi Cement to open a new shale quarry03 April 2023, Published under Cement NewsKenya-based Bamburi Cement (part of Holcim )will be opening a new shale quarry in Kwale County to serve a new cement plant. The quarry is expected to supply around 20 per cent of the total resource material for the clinker production process. Bamburi plans to scale up its south coast business and establish a 5000tpd clinker plant, said the company’s former CEO, Seddig Hassani. The site is located on approximately 700 acres of land currently owned by local communities that are practicing... |
VDZ study researches future cement and concrete resources in 205028 February 2023, Published under Cement NewsThe new VDZ study "Resources of the future for cement and concrete – Potential and action strategies" describes a possible 2050 scenario aimed at further reducing primary raw material utilisation. In Germany the various by-products and recycled materials already employed today enable more than 10Mta of primary raw materials to be saved, depending on their availability. "Blast furnace slag from ironmaking and fly ash from coal-fired power generation in particular play a major role", ... |
Attock Cement seeks a supply of minerals03 January 2023, Published under Cement NewsAttock Cement Pakistan Ltd has planned to outsource raw materials for its cement plant at Hub Choki in the Balochistan province from January 2023 to June 2023. The company asked the minerals suppliers to send the best quotation for the supply of 50,000t of gypsum and 75,000t of iron ore during this period. Bids are due on 10 January 2023. The company started commercial production in 1988 with a plant capacity of 2000tpd of clinker (approximately 0.6Mta). Through a series of expansions, ... |
Bangladesh sees imports of raw materials rise07 September 2022, Published under Cement NewsThe import of raw materials used in cement production has increased in recent months despite raw material prices increasing. In the July-August 2022 period a total of 5.12Mt of clinker, granulated slag, limestone, gypsum and fly ash were imported. The imports represent a value of BDT23.038bn (US$242.4m), up 34 per cent YoY. Clinker prices have increased 17.5 per cent YoY to US$62.14 on average. To safeguard profit margins cement producers have increased the price per bag on the back of a U... |
UltraTech Cement preferred bidder for Karnataka limestone13 April 2022, Published under Cement NewsUltraTech Cement (owned by Aditya Birla Group ) has emerged as the preferred bidder in the e-auction for the Diggaon Limestock Block. "The company participated in the e-auction of Diggaon Limestone Block conducted by the Government of Karnataka and has been declared as the preferred bidder," the company said in a regulatory filing. The block is situated in Chittapur township in the Kalburgi district of Karnataka, India. It is adjacent to UltraTech Cement’s Rajashree cement plant. The bl... |
INSEE Cement signs MoU with Hambantota Port29 November 2021, Published under Cement NewsHambantota International Port Group (HIPG) recently signed an agreement with INSEE Cement to ensure the efficient transfer of raw materials to the Galle cement plant, Sri Lanka, via the Hambantota Port. The agreement was signed between INSEE Cement CEO, Gustavo Navarro, and HIPG CEO, Johnson Liu, at a ceremony held at the Hambantota Maritime Centre. Mr Navarro said: "Due to the limitations we have experienced in our previous operations, we couldn’t bring bigger vessels with larger ... |
Limestone specifications23 November 2021, Published under Cement NewsWhen asked to review the suitability of limestone deposits for cement manufacture, Dr Michael Clark makes a range of important assessments such as what other materials would need to be added to produce a clinker with the required mineral content. The lime content of a limestone deposit is one assessment that needs to be made during an evaluation This author has been asked twice during the pandemic to review data on limestone deposits and their suitability for cement manufacture.... |
INC restarts clinker production22 November 2021, Published under Cement NewsFollowing three days of stoppage to change one of the raw mill motors, Paraguay’s Industria Nacional de Cemento (INC) has resumed clinker production, said Ernesto Benítez, president of INC. "Regarding the production of clinker and cement we are recovering the levels. Last night we started operating again, after several days we had to suspend. The quality is good as well as the amount. We are achieving the market numbers well," he said. He expects to produce 40,000-50,000 bags/day. "We are a... |
Effects of recirculation cells in cement kilns31 August 2021, Published under Cement NewsAs the raw material passes through the cement production process, recirculation cells are created. Due to the heterogenous nature of the fine materials, the composition in each cell is not uniform and as such, recirculation cells can impact on the final product. Figure 1: example of the relationship of hotmeal LSF to clinker LSF The manufacture of Portland cement clinker is necessarily concerned with the handling of very fine grains or dusts at various stages of production. Firs... |