(EP969104-A1)      A liquid slag granulation and comminution process comprises coal, hydrocarbon and/or coal/water mixture injection into the slag.    DETAILED DESCRIPTION - A liquid slag granulation and comminution process comprises injecting coal, hydrocarbons and/or coal/water mixtures or slurries into the slags or slag streams and then passing the slags into an expansion and granulation chamber and then into a mill, especially a jet or impact mill. An INDEPENDENT CLAIM is also included for equipment for carrying out the above process, comprising a slag tundish and a lance arranged coaxially to the tundish tube, the tundish tube being in the form of a Laval nozzle with carbon source injectors and/or water nozzles positioned radially beyond the tube outlet.    USE -   Especially for granulation and comminution of metal oxide-containing slags such as converter slags or waste incineration slags.    ADVANTAGE -   Provides a reducing atmosphere which allows the process to be extended to any type of slag including those with high metal oxide content, without the risk of explosions. The process produces rapid comminution due to sudden expansion of the injected media, provides rapid cooling (especially of highly basic slags having a strong devitrification tendency) to maintain the vitreous structure of the slag, allows reduction of the metal oxide content (e.g. for carburized, directly reduced iron production) and allows direct formation of synthesis gas or water gas, part of which may be withdrawn as export gas e.g. for Fischer-Tropsch synthesis of long chain hydrocarbons such as benzene.    DESCRIPTION OF DRAWING - The drawing shows a schematic view of equipment according to the invention. (1) Slag tundish; (3) Slag outlet; (4) Expansion chamber; (5) Lance; (6) Water and/or oxygen nozzles, (8) jet mill.    (ZA9904237-A)      A liquid slag granulation and comminution process comprises coal, hydrocarbon and/or coal/water mixture injection into the slag.    DETAILED DESCRIPTION - A liquid slag granulation and comminution process comprises injecting coal, hydrocarbons and/or coal/water mixtures or slurries into the slags or slag streams and then passing the slags into an expansion and granulation chamber and then into a mill, especially a jet or impact mill. An INDEPENDENT CLAIM is also included for equipment for carrying out the above process, comprising a slag tundish and a lance arranged coaxially to the tundish tube, the tundish tube being in the form of a Laval nozzle with carbon source injectors and/or water nozzles positioned radially beyond the tube outlet.    USE -   Especially for granulation and comminution of metal oxide-containing slags such as converter slags or waste incineration slags.    ADVANTAGE -   Provides a reducing atmosphere which allows the process to be extended to any type of slag including those with high metal oxide content, without the risk of explosions. The process produces rapid comminution due to sudden expansion of the injected media, provides rapid cooling (especially of highly basic slags having a strong devitrification tendency) to maintain the vitreous structure of the slag, allows reduction of the metal oxide content (e.g. for carburized, directly reduced iron production) and allows direct formation of synthesis gas or water gas, part of which may be withdrawn as export gas e.g. for Fischer-Tropsch synthesis of long chain hydrocarbons such as benzene.    DESCRIPTION OF DRAWING - The drawing shows a schematic view of equipment according to the invention. (1) Slag tundish; (3) Slag outlet; (4) Expansion chamber; (5) Lance; (6) Water and/or oxygen nozzles, (8) jet mill.    (US6196479-B1)      A liquid slag granulation and comminution process comprises coal, hydrocarbon and/or coal/water mixture injection into the slag.    DETAILED DESCRIPTION - A liquid slag granulation and comminution process comprises injecting coal, hydrocarbons and/or coal/water mixtures or slurries into the slags or slag streams and then passing the slags into an expansion and granulation chamber and then into a mill, especially a jet or impact mill. An INDEPENDENT CLAIM is also included for equipment for carrying out the above process, comprising a slag tundish and a lance arranged coaxially to the tundish tube, the tundish tube being in the form of a Laval nozzle with carbon source injectors and/or water nozzles positioned radially beyond the tube outlet.    USE -   Especially for granulation and comminution of metal oxide-containing slags such as converter slags or waste incineration slags.    ADVANTAGE -   Provides a reducing atmosphere which allows the process to be extended to any type of slag including those with high metal oxide content, without the risk of explosions. The process produces rapid comminution due to sudden expansion of the injected media, provides rapid cooling (especially of highly basic slags having a strong devitrification tendency) to maintain the vitreous structure of the slag, allows reduction of the metal oxide content (e.g. for carburized, directly reduced iron production) and allows direct formation of synthesis gas or water gas, part of which may be withdrawn as export gas e.g. for Fischer-Tropsch synthesis of long chain hydrocarbons such as benzene.    DESCRIPTION OF DRAWING - The drawing shows a schematic view of equipment according to the invention. (1) Slag tundish; (3) Slag outlet; (4) Expansion chamber; (5) Lance; (6) Water and/or oxygen nozzles, (8) jet mill.