The development of a dry production method for synthetic iron sulfide catalyst was conducted using a small scale appratus with the production capacity of 10kg/hr. The dry production method would be expected to have larger productivity than the wet production method. The product catalyst has 92 weight percent of iron disulfide content and about 100 micron of the average particle size (secondary) which is easily crushed to submicron level by ultrasonic treatment. The liquid yield using the product catalyst by autoclave coal liqefaction test is 4 percent higher than that of the wet method catalyst.
