Show nevada manganese ore communicated nevada the battle born state that gained name statehood and fame b by Y supplying the finances for the union during the dark days of when the coffers of most all other treasuries were empty may again not only by her overwhelming response with men and coin shine brighter as one of the stars of the union than ever before by supplying the necessary manganese metal at least in major proportion that will be required to produce the needed steel to prosecute the war and it is agreed among the best authorities ties that steel is the factor that will eventually decide the titanic struggle nevada may also have the lionor honor of showing the world how low grade manganese ores can be treated so as to recover the metals that are necessary to uncle sam for his army and navy the address before the session of the american institute of mining engineers at st louis urging the necessity of stimulating the production of such metals as manganese zinc tin lead etc was certainly to the point and one that is of the gravest interest to every citizen of the united states there is plenty of manganese in the U S for all war iwar purposes etc provided the low grade ores are utilized instead of wasted in favor of high grade manganese ore for the sake of quick and large cash money returns reference is made to manganese ores that are refused by manganese ore buyers and which assay from 13 per cent to 35 per cent manag anese an immense tonnage of this class of material is to be had in nevada and adjoining states these ores in some cases are combined with silver zinc lead tin tungsten and other metals in fact the very metals that the government wants and which in most cases are wasted partially or wholly in the present method of metal finance annexed are results on the extraction and recovery of such ores by methods evolved by charles S a nevada metallurgist and embodied in the form of several U is patents wherein the manganese contents are extracted and recovered to per cent and in no ease case less than 90 per cent the product is peroxide of manganese assaying manganese peroxide per cent pure containing 63 per cent metallic manganese iron trace lead none lime 15 moisture and loss 32 total per cent the analysis of orthis this ore and the extraction and quality of the recovered products are herein exemplified silver ores A silver manganese copper ore assayed silver 2922 ounces per ton copper 9 per cent manganese per cent gold none after treatment the tailings assayed copper trace manganese trace silver ounces per ton results an extraction of silver 96 per a cent an extraction of copper per cent an extraction of manganese per cent I 1 the leaching medium used are sulphur ous fumes either generated by C calci al c ning sull 11 bhide ores raw sulphur or those alimi eliminated bated y 5 as waste gases other deposits of man 1 canese ore ranging in value from 5 per cent to 35 per cent are to be had bad in various lo 10 cali ties and the manganese contents in con lection with other metallic values such as silver zinc etc can readily be recovered 1 by means of sulphurous acid generated from roasting sulphide ores or raw sulphur that are generally to be found in the same locality the sulphurous acid gas will in the case of manganese make a better and cleaner extraction than so much sulphuric acid pro deuced in an expensive plant and which acid is more needed in other industries by reaf son of the fact that nothing but sulphuric acid would do in those particular cases other large deposits of manganese silver ore readily yield their metallic contents to the treatment as above outlined however private enterprise is hard to advise as shown by the ten years struggle that the j flotation process had for recognition the erection of an experimental plant to demonstrate the feasibility of the treat ment of low grade manganese ores by the above process is contemplated 1 |