Blast Furnace Blowing

Turbo blowers for blast-furnace blowing have now been in use for some years, and a review of the experience gained and the present state of progress may be interesting. The first blast-furnace blowing engine of this type to be installed in America was built by the General Electric Co. and is installed at the Oxford … Read more

Ammonia Carbon Dioxide Process

Most metallurgists appreciate the great need of a process for the extraction and recovery of valuable metals from complex ore, where the presence of one metal increases the cost of extracting the other metals to such an extent that not any of the metals can be extracted at a profit. We need only refer to … Read more