Gypsum industry news

Denmark: Saint-Gobain has completed the sale of its Optimera construction materials distribution business to Davidsens Tommerhandel. The sale is part of its portfolio optimisation strategy. It follows the divestment of its Saint-Gobain Building Distribution Deutschland (SGBDD) business in Germany, its construction glass business in South Korea and its K Par K wood and windows business in France.

UK: Logistics company AV Dawson has officially opened a Euro1.1m new canopy at its Teesside terminal in Middlesbrough to support its contract with British Gypsum. The 100m canopy provides dry-loading capabilities for imported raw materials for plaster and wallboard products to be stored and then loaded onto trains for delivery to British Gypsum’s operations in the East Midlands. Delegates from British Gypsum, the North East England Chamber of Commerce, Department for International Trade and rail freight operator, GB Railfreight attended the opening ceremony. AV Dawson’s contract with British Gypsum was signed in 2018.

US: The American Coal Ash Association (ACAA) has criticised a proposed revision of coal ash regulations by the Environmental Protection Agency because it will restrict the recycling of coal ash.

"EPA's proposals related to the definition of coal ash beneficial use are the opposite of a regulatory roll-back," said Thomas H Adams, ACAA Executive Director ahead of a hearing with the EPA. "Without any damage cases or scientific analysis to justify its actions, the agency is seeking to impose burdensome new restrictions that will cause millions more tons of material to be disposed rather than be used in ways that safely conserve natural resources and energy."

Adams and the ACCA argue that previous EPA rules concluded that beneficial use of coal ash should be exempt from regulation and encouraged to contribute to sustainability. However, the ACCA has taken exception with a 2015 definition of beneficial use, which was intended to prevent ‘disposal activities masquerading as beneficial use.’ By expanding the scope of this definition the ACCA says that more coal ash will be landfilled instead of being recycled.

Coal is the fuel source for approximately one-third of electricity generation in the US and produces large volumes of solid coal combustion products - primarily ash and synthetic gypsum from emissions control devices. This family of diverse products is referred to as coal combustion residuals in a disposal setting and is often generically referred to as ‘coal ash.’

According to ACAA's most recent ‘Production and Use Survey,’ 64.4% of the coal ash produced during 2017 was recycled. By volume, 71.8Mt of coal combustion products were beneficially used in 2017 out of 111Mt that were produced. Coal ash production volume increased by 4% year-on-year from 2016.

Canada: Red Moon Resources says it has shipped over 0.13Mt of gypsum and anhydrite from its Ace mine in western Newfoundland since May 2019. Production is scheduled to continue into late October 2019 and the company is expecting for total production to exceed 0.15Mt in 2019. The company is working with Vinland Materials, a related company, to undertake contract mining operations and secure sales agreements for gypsum and anhydrite.

“We have successfully opened up the Ace mine and will continue to work towards a larger operation,” said Patrick J Laracy, President of Red Moon.
. “We have engaged some of the best operational resources in the area to make the mine a success and ensure its viability. The economic impact in the immediate area is significant with an estimated 45 people employed on a seasonal basis in mining, trucking, port facility, marketing, shipping and supervision. This is in addition to the utilisation of specific services such as drilling and blasting.”

Red Moon uses a deep-water port approximately 10km from the mine to ship the gypsum. The quarry site covers 12 hectares and has the potential for a 10 year mining life at an average production rate of 350,000t/yr. The company says that if it can access markets requiring production rates beyond the Ace mine capacity, the company is prepared to develop other existing gypsum deposits located on its mineral licences, which cover approximately 700 hectares of the historic Flat Bay gypsum mines.

Germany: Schenck Process has added the ProFlex C100 to its range of ProFlex C family of products. The new offering is the smallest of the range and it is intended for small extruders. It is designed for flexibility allowing for a range of additives to be used, the asymmetric design is designed to prevent the bridging and plugging of sticky materials, it is equipped with an integrated gearbox for turndown ratios of up to 1:120 and it has a flexible wall liner massaged at eight points, which the manufacturer says allows a constant and accurate filling of the screw feed element.

The ProFlex C feeding system is used for the continuous feeding of bulk materials such as powder, granulates, pellets or fibers. The series is targeted for the compound and masterbatch industries.