
Nov 14, 2021 David Hughes firm, Happy Dolphin in Wrexham, makes carrier bags and other items using calcium carbonate - the same material found in eggshells. And Jul 26, 2018 Lime can be produced by reducing limestone (calcium carbonate) in a furnace at 900C-1000C. As the trusted acetylene gas manufacturers in India, we offer wide range acetylene plants in different sizes and capacities ranging 25m3/hour to 200m3/hour for acetylene plant for industrial uses .