Life　cycle　assessment　of　titanium　sponge　production　using　Kroll　process　in　China　was　conducted　based　on　ReCiPe　method.　The　life　cycle　inventory　and　environmental　impacts　of　the　main　processes　was　calculated.　The　main　factors　and　sources　that　cause　environmental　pressure　were　identified.　In　addition,　sensitivity　analysis　of　the　allocation　scenarios　for　energy　consumption　in　the　V-Ti　magnetite　ore　mining　and　dressing　and　main　auxiliary　materials　and　power　consumption　were　discussed　in　detail.　The　results　indicated　that　the　electrolysis　of　magnesium　chloride　and　the　smelting　of　titanium　slag　accounted　for　39.6%　and　22.4%　of　the　total　impact　of　Kroll　process,　respectively.　The　accumulative　energy　consumption　of　the　titanium　sponge　production　in　China　was　423　Gift.　Electric　power　accounted　for　66%　of　the　accumulative　energy　consumption.　The　sensitivity　analysis　showed　that　the　scenario　based　on　the　mass　of　the　target　products　in　ore　mining　and　dressing　process　was　more　feasible.　The　allocation　scenarios　based　on　the　mass　of　iron　or　titanium　dioxide　exerted　negligible　impact　on　the　final　results.　The　electricity　consumption　exhibited　the　highest　sensitivity　among　all　the　environmental　impact　categories　except　for　the　metal　depletion.　Toward　cleaner　technologies　implementation　in　China　titanium　sponge　production,　the　potential　and　effectiveness　of　the　effort　were　quantified.　In　particular,　the　electric　power　consumption　and　the　characterisation　results　for　particulate　matter　formation　and　photochemical　oxidant　formation　were　reduced　by　17%,　54%　and　28%,　respectively.　The　overall　environmental　impact　decreased　by　21%.　The　adoption　of　advanced　and　mature　techniques　and　equipment　is　of　a　greater　practical　significance　to　the　cleaner　production　of　titanium　sponge.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.