The objectives of the study were: To expand information and understanding of potential means for controlling air pollution from processes that are being used, or might be used in the future, to manufacture metallurgical coke (for blast furnace use) from coal; and to evaluate the information obtained and to recommend the construction of pilot plants, prototypes, and/or demonstration units where Battelle's conclusions indicate that such experimental work is advisable and justified in the national interest. Changes, modifications, innovations, and auxiliaries that have potential for reducing air-pollution emissions from processes for the manufacture of metallurgical (blast-furnace) coke were evaluated as described under the following sections: Improved systems for conventional coke ovens: Potentially controllable new coking processes; and the Potential for reduction of air pollution. (Author)