Gypsum industry news

France: Knauf France aims to use 35% recycled gypsum at its Fos-sur-Mer gypsum wallboard plant in Bouches-du-Rhône, with an interim target of 10% by 2025. The company inaugurated the 30Mm²/yr plant in March 2024. It is currently using its own offcuts in production, but has a dedicated silo in which to also store gypsum from other sources in future. The plant’s wallboard requires 15 – 20% less energy than is used at a ‘traditional’ Knauf plant through the use of a vertical mill and high-efficiency driers. Its water use is optimised by drawing it in batches.

Les Cahiers Techniques News has reported that general manager Christine Muscat said "The ramp-up is gradual and we are at a third of production capacity, which we plan to reach fully in the second half of 2025."

Germany: Grenzebach has expanded its portfolio by acquiring the technology to build its own special hammer mill, previously sourced from Beumer Group subsidiary FAM Minerals & Mining. The hammer mill processes particle sizes of 0 – 50mm, with a throughput of up to 50t/hr. The acquisition also covers technology for the dynamic classifier. Grenzebach says that it will continue to further develop its portfolio of calcination line components, focused on energy efficiency, carbon reduction and digitisation.

CEO Robert Brier said “We are constantly looking for ways to optimise our customer orientation. That is why we were very interested in expanding our portfolio and ultimately acquired the technology.”

US: CertainTeed plans to invest US$235m in an expansion to its 84Mm²/yr Palatka gypsum wallboard plant in Florida. The La Tribune newspaper has reported that the Saint-Gobain subsidiary will install a second production line to double the plant’s capacity. The company will also carry out work to increase the plant’s energy efficiency.

Canada: Saint-Gobain has shared plans to install a US$3.19m waste heat recovery (WHR) system at its Vancouver gypsum wallboard plant in British Columbia. It has secured US$1.12m in funding from the provincial government’s CleanBC Industry Fund for the project. The producer says that the installation will increase the plant’s energy efficiency and reduce its CO₂ emission by 10%.

Saint-Gobain said “This project will help our company to maximise our positive impact for our customers and the communities where we do business, while minimising our environmental footprint. We thank the CleanBC programme for its support, and look forward to many more years of sustainable, state-of-the-art manufacturing in Vancouver.”

Germany: Currax and Siemens have announced their collaboration on a mill operations digitisation pilot project involving the Simotics Connect 400 motor data collector and transmitter. They hope that analysis of data processed via the Simotics 400 will better enable the remote operating of mills ‘to increase efficiency and component life’ and speeding the shift towards automation and production that is resilient to crises such as the coronavirus outbreak.