Granular sulfur-bentonite mixture for fertilizer
14. A process, as in claim 8, 9 or 10 in which the comminuting is effected by a roller crusher, and the screening procedure used to ensure a uniform sized product comprises re-turning all granules which are too large to the crusher for reprocessing, returning all granules which are too small to the mixing step for reprocessing, and allowing the finished product of acceptable particle size …
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