Alpitch
A specialty pitch control additive used in pulp and papermaking processes to prevent the deposition of wood resins, stickies, and other hydrophobic contaminants, improving machine cleanliness, operational efficiency, product quality, and paper machine runnability.
Other Chemicals, Polymers & Materials products
Normal Lump Lime
The robust, bulk-grade standard for foundational metallurgical and industrial processing. Delivered in its traditional, uncrushed form directly from the calcination kiln, Normal Lump Lime provides a steady and dependable source of basicity, with a balanced dissolution rate that ensures sustained neutralisation. In calcium carbide manufacturing, its bulk lump form is charged with metallurgical coke or anthracite into a submerged-arc electric furnace, where temperatures of approximately 2000 °C drive the endothermic reaction CaO + 3C → CaC₂ + CO. The uncrushed lump geometry is critical to the process: it withstands the mechanical burden loads and thermal shock of the furnace, maintains an open, permeable charge that allows carbon monoxide off-gas to percolate freely to the top, and provides a steady, controlled feed rate of CaO into the reaction zone — minimising fines carryover, electrode fouling and thermal instability.