Inventor
HARTMANN ACHIM
DE21 patents
⚠️ This page may combine multiple inventors who share the name “HARTMANN ACHIM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KRONOS INC
8 patentsUS6399033B1Jun 4, 2002
Process for increasing the yield in the manufacture of titanium dioxide by the chloride process
KRONOS INC32 citations92
US5683669ANov 4, 1997
Metal chloride generator and improved process for the production of metal chlorides used in the manufacture of titanium dioxide by the chloride process
KRONOS INC20 citations86
US5942201AAug 24, 1999
Process utilizing titanium dioxide as a catalyst for the hydrolysis of carbonyl sulfide
KRONOS INC11 citations73
US5536487AJul 16, 1996
Process for the use of rutile promoter and control additives in the manufacture of titanium dioxide by the chloride process
KRONOS INC14 citations73
US5407650AApr 18, 1995
Process for purifying a technical iron chloride solution by selective precipitation
KRONOS INC19 citations70
US5248497ASep 28, 1993
Production of purified iron chloride by a vacuum process in the manufacture of titanium dioxide
KRONOS INC7 citations65
US5409679AApr 25, 1995
Process for the production of titanium dioxide
KRONOS INC5 citations62
US5540907AJul 30, 1996
Process for preparing high solids content titanium dioxide suspension with a dechlorinating agent
KRONOS INC6 citations59
KRONOS TITAN GMBH
7 patentsUS4784841ANov 15, 1988
Process for the production of coarse, scrubbing aggregates of titanium dioxide particles by oxidation of titanium tetrachloride in the vapor phase and use of said aggregates for the prevention of deposit formation in the same production process
KRONOS TITAN GMBH36 citations91
US4569387AFeb 11, 1986
Device for the cooling of hot gaseous solids suspensions
KRONOS TITAN GMBH20 citations78
US4533530AAug 6, 1985
Process for the separation of volatile chlorine compounds from the exhaust gases resulting from the chlorination of titanium-containing raw materials
KRONOS TITAN GMBH10 citations73
US4521384AJun 4, 1985
Process for the production of nearly aluminium chloride-free titanium tetrachloride from titaniferous raw materials containing aluminum compounds
KRONOS TITAN GMBH8 citations72
US4394270AJul 19, 1983
Apparatus for the chemical conditioning of sludges
KRONOS TITAN GMBH8 citations72
US4060584ANov 29, 1977
Process for recovery of iron oxide and chlorine from dust produced in chlorination of titaniferous ores
KRONOS TITAN GMBH17 citations70
US4633935AJan 6, 1987
Method for the cooling of hot gaseous solids suspensions of titanium dioxide
KRONOS TITAN GMBH5 citations58