DE2508707

• Main Authors: RAMMLER, ROLAND. DR., 6240 KOENIGSTEIN, DE, WEISS, HANS-JUERGEN. DR., 6000 FRANKFURT, DE
• Format: Patent
• Language: English
• Published: 23.09.1982
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; HEATING; LIGHTING; LIME, MAGNESIA; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; REFRACTORIES; SLAG; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TREATMENT OF NATURAL STONE; WEAPONS

A dry distillation process for treating bituminous or oil-containing fine-grained material, particularly tar sand, with a heat carrier comprising fine-grained dry distillation residue which is heated in a pneumatic conveyor line by hot combustion gases and then fed to a collecting vessel and mixed in a dry distillation zone with the fine-grained material to be subjected to dry distillation. The dry distillation residue is heated to a temperature of 600 DEG -850 DEG C before being mixed at least in part with the material which is to be subjected to dry distillation, said material containing at least 0.2% by weight magnesium carbonate and/or calcium carbonate.