Haltermann, a portfolio company of H.I.G. Europe, has acquired U.K.-based chemical company Petrochem Carless. Based in Leatherhead, Petrochem refines and produces hydrocarbon chemicals used in industries like downstream chemicals, agrochemicals, oil and gas, consumer goods, printing and automotive. It will fold into Haltermann, a Germany-based producer of specialty hydrocarbons with a particular focus on pentanes, high purity hydrocarbons and test and reference fuels. H.I.G. Europe, a division of Miami-based H.I.G. Capital, bought Haltermann from Dow Chemicals in July 2011.