Displaying items by tag: Quarry
India: Prism Cement has received a letter of intent from the state government of Madhya Pradesh to grant it a lease to mine cement grade limestone at Chulhi and Majhiyar, Satna district for 50 years. The lease covers reserves of about 23.6Mt and it applies to the cement producer’s plants in the state.
Nepal: Hongshi Shivam Cement’s Sardi cement plant project in Nalwalparasi is likely to be delayed due to slow progress by the government in building a road to a nearby limestone quarry. The project was due to start production in May 2017 but the slow rate of investment by the Chinese firm’s state partner has caused this completion estimate to be revised, according to the Kathmandu Post. Other infrastructure requirements for the project that are slowing it down include a 40km road to the site and an electricity substation.
Guatemala: Austria’s Doppelmayr has started up a RopeCon conveyor system for Cementos Progreso’s San Gabriel plant near Guatemala City. The 1.6km conveyor will transport 2100t/hr of limestone from a quarry to the plant across wooded terrain and it rises up to a height of 200m off the ground using four tower structures. The long rope structure of the system has enabled it to use a minimum amount of space on the ground. The new cement pant is expected to start operation in the first half of 2017.
Switzerland: Jura Cement’s Wildegg plant has been given permission to extend its limestone quarry at Auenstein and Veltheim. However the decision by the Grand Council is subject to adoption by the local communities, according to Swiss Radio and Television. Jura Cement, a subsidiary of Ireland’s CRH, will also need a building permit for the extension. The cement producer previously had expansion plans for its quarry cancelled in 2014.
Germany: BHS-Sonthofen and MSW Mineralstoffwerke Südwest have been awarded the German Resources Efficiency Award 2016 for their Combimix process. The German Federal Minister for Economic Affairs and Energy awarded the prize to the two companies in mid-February 2017. The process uses lime to improve raw materials yields in quarries contaminated with clay.
BHS developed the Combimix process based on their twin-shaft batch mixers and implemented it together with MSW. It uses lime to mix with clay that then undergoes a chemical reaction and this allows it to be separated from the rock in a subsequent processing step. The process allows more materials, such as limestone, to be extracted from quarries and extends the usable lifespans of such sites. In addition, previously dumped materials considered unprofitable can now be reassessed.
MSW introduced the process at its Mönsheim quarry in the summer of 2016. It allowed the company to increase its repository’s yield by 25%. To produce the same volume of the final product, it was previously necessary to extract about 620,000t/yr of limestone. At present the total is around 188,000t less, which corresponds to a relative reduction of around 30%. It helped to increase raw material efficiency from the previous level of 65 – 70% to around 93%.
“Our Combimix process holds a vast potential as it enables companies across the globe and throughout various industries to utilise resources more efficiently. In the context of rehabilitating contaminated soil, Combimix can be used to remove oil and other harmful substances. As a result, only a small fraction of the feed material needs to be dumped in hazardous waste landfills. The process is also viable for the cement industry. Here, it can be applied to processing limestone, a key ingredient that improves the burning process in rotary kilns and thus contributes to reducing fuel consumption,” said Dennis Kemmann, the managing director of BHS-Sonthofen.
Nigeria: The government of Cross River state has secured operational licenses from the Federal Government to build its own cement plant and limestone quarry in the Akamkpa region of the state. George O’Ben-Etchi, Commissioner for Solid Minerals Development, made the announcement following a meeting with the Solid Minerals Development Board, according to the Daily Trust newspaper. The plant and quarry are intended to compliment the state’s Superhighway project.
US: The Center for Biological Diversity, a non-government agency, has described plans to give Mitsubishi Cement a 120-year permit to mine limestone from a new quarry in San Bernardino National Forest in southern California as ‘unreasonable.’ Ileene Anderson, a senior scientist with the Center for Biological Diversity, made the comment on the basis that local flora and fauna would be adversely affected by the decision, according to the San Bernardino Sun newspaper. The US Forest Service and the County of San Bernardino are seeking comment on the proposal until 1 February 2017.
The new quarry will be located on public land abutting Mitsubishi Cement’s existing quarries at the site. It will serve the nearby Lucerne Valley cement plant.
Nepal: Residents of Jyamire are seeking ’fair’ compensation from a quarry that Hongshi-Shivam Cement is building. Villagers have prevented Chinese technicians from the Nepal-China joint venture from working near the village, claiming that the company has ignored their complaints, according to the Kathmandu Post. Around 32 households in the region will be displaced by the mining project. The villagers are seeking compensation in excess of the rate set by the government, which they say the cement company offered them initially.
Hongshi-Shivam Cement is building a cement factory at Sardi in Nawalparasi district. It has acquired a permit from the Department of Mines and Geology to extract limestone at Jyamire in Palpa. China's Hongshi Holding Group has invested US$330m and its local partner has contributed around US$140m towards the project. The plant will have a production capacity of 6000t/day when operational and it is expected to be opened in 2017.
Portugal: The commercial port at Faro has seen activity stop since June 2016 following the decision by Cimpor to suspend operations at its quarry in Loulé. The cement producer has been the port’s biggest client in recent years and in 2016 it became the site’s only, according to the Portugal News newspaper. A report by the Authority for Mobility and Transport shows that movement at the port fell by 45% year-on-year for the first nine months of 2016. Cimpor stopped operation at its quarry in September 2016 and laid off 57 workers citing the cancellation of major cement export contracts to Algeria. It hopes to resume operations at the site in 2017.
India: Commotion broke out at a public hearing seeking views on a proposed second quarry at a plant near Sendurai in Tamil Nadu for Ramco Cement. The police removed 13 attendees who threw chairs and caused disruption at the meeting, according to the Hindu newspaper. The hearing was organised by the Tamil Nadu Pollution Control Board.