Abstract: Processes for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts are disclosed. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials.

Abstract: Processes for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts are disclosed. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials.

Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R? are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R? are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalky or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Abstract: Luster pigments obtainable by treating titania-coated silicate-based platelets at from 400.degree. to 900.degree. C. with a gas mixture comprising a vaporized organic compound and ammonia are useful for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.

Abstract: Preparation of bluish luster pigments by treating titania-coated silicatic platelets with a reducing gas mixture, which comprises treating titania-coated silicatic platelets whose titania coating has a geometric layer thickness of from 10 to 60 nm at from 800.degree. to 900.degree. C. with a gas mixture comprising a vaporized organic compound and ammonia, and also bluish luster pigments based on silicatic platelets comprising a reduced titania coating with a geometric layer thickness of from 10 to 60 nm and CIELAB color coordinates -2.ltoreq.a*.ltoreq.2 and b*.ltoreq.-20 (measuring angle 20.degree., standard illuminant D65).