Surface Arrangements, Ore Dressing and Milling, Sampling Ores, Roasting and Calcining Ores, the Cyanide ProcessInternational Textbook Company, 1902 - 500 Seiten |
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Seite 41
... solution by galvanic action , and the precipitated metal is at once dissolved by the mercury , soon causing it to sicken . For this reason , the old - fashioned stone arrastra is better suited to working some ores than the improved ...
... solution by galvanic action , and the precipitated metal is at once dissolved by the mercury , soon causing it to sicken . For this reason , the old - fashioned stone arrastra is better suited to working some ores than the improved ...
Seite 44
... solution of bromine . The action is very similar in both cases . The gold is brought into the form of a soluble chloride or bromide ; this is leached out of the pulp by water and the gold then precipitated as a brown powder , usually by ...
... solution of bromine . The action is very similar in both cases . The gold is brought into the form of a soluble chloride or bromide ; this is leached out of the pulp by water and the gold then precipitated as a brown powder , usually by ...
Seite 45
... solution of potas- sium cyanide , has given the best results on tellurium ores . There are so many factors entering into the case that it is impossible to make any general statement as to which is the best method for telluride ores . 46 ...
... solution of potas- sium cyanide , has given the best results on tellurium ores . There are so many factors entering into the case that it is impossible to make any general statement as to which is the best method for telluride ores . 46 ...
Seite 47
... solution instead of reducing and sick- ening the mercury . As the ore is ground to an impalpable pulp , there is considerable flouring of mercury and amal- gam , but subsequent settling and washing save a great deal of this . The ...
... solution instead of reducing and sick- ening the mercury . As the ore is ground to an impalpable pulp , there is considerable flouring of mercury and amal- gam , but subsequent settling and washing save a great deal of this . The ...
Seite 49
... solution of copper sulphate added , and the pile trodden for 8 or 9 hours the first day , and again the next day , and then every second or third day until the pile is finished . The average time is about 20 or 25 days . When the tests ...
... solution of copper sulphate added , and the pile trodden for 8 or 9 hours the first day , and again the next day , and then every second or third day until the pile is finished . The average time is about 20 or 25 days . When the tests ...
Häufige Begriffe und Wortgruppen
adjustable amalgam apparatus apron plates arrangement battery belt bolted bottom buddle bumping table carried cast-iron cent charge clean coarse compartment concentrates cone conveyer copper countershaft crusher crushing crushing machine cyanide cyanide process diameter discharge driving dump elevator feed feeder feet flow furnace gallons gamating gangue Gilpin County gold head heavy holes horizontal Huntington mill inches iron launder lever lower end machine magnetic material mercury mesh metals middlings mineral mortar motion muller operation oxide pan amalgamation particles passes pile pipe piston potassium cyanide pounds prevent pulley pulp stream pyrites revolutions per minute revolving roasting rock roller rolls sample screen separation settling shaft shaking frame shoes shown in Fig side silver sizes slimes slot specific gravity speed stamp mill stationary stroke surface tailings tanks tappet timbers tion trough usually vanner vertical wash water wheel zinc
Beliebte Passagen
Seite 2 - That whenever by priority of possession, rights to the use of water for mining, agricultural, manufacturing, or other purposes, have vested and accrued, and the same are recognized and acknowledged by the local customs, laws, and the decisions of courts, the possessors and owners of such vested rights shall be maintained and protected in the same ; and the right of way for the construction of ditches and canals for the purposes aforesaid is hereby acknowledged and confirmed : Provided, however.
Seite 2 - All patents granted or preemption or homesteads allowed shall be subject to any vested and accrued water rights, or rights to ditches and reservoirs used in connection with such water rights as may have been acquired under or recognized by the preceding section.
Seite 2 - Where non-mineral land not contiguous to the vein or lode is used or occupied by the proprietor of such vein or lode for mining or milling purposes, such non-adjacent surface ground may be embraced and included in an application for a patent for such vein or lode, and the same may be patented therewith, subject to the same preliminary requirements as to survey and notice as are applicable to veins or lodes...
Seite 2 - ... and the right of way for the construction of ditches and canals For the purposes herein specified is acknowledged and confirmed ; but whenever any person, in the construction of any ditch or canal, injures or damages the possession of any settler on the public domain, the party committing such injury or damage shall be liable to the party injured for such injury or damage.
Seite 2 - The owner of a quartz mill or reduction works not owning a mine in connection therewith may also receive a patent for his mill site as provided in this section.
Seite 2 - Together with all and singular the hereditaments and appurtenances thereunto belonging, or in any wise appertaining...
Seite 14 - FCLFIL. 1. The precipitated gold must adhere to it. 2. It must be capable of being rolled out into very thin. sheets to avoid unnecessary expense. 3. It must be easy to recover the gold from it. 4. It must not be more electro-positive than the anode, in order to prevent return currents being generated when the depositing current is stopped. The most suitable metal for the purpose is lead, rolled out into very thin sheets.
Seite 15 - The boxes are kept locked, being opened once a month for the purpose of a " clean up," which is carried out in the following manner : The frames carrying the lead cathodes are taken out one at a time. The lead is removed and replaced by a fresh sheet, and the frame returned to the box, the whole operation taking but a few minutes for each frame. By this means the ordinary working is not interrupted at all, and the cleaning out of the boxes, which is necessary in the zinc boxes, is only required at...
Seite 20 - By this means the air can be rarefied when the filter bottom is covered with pulp. The part above the filter receives the contents of the agitator. The bottom of the apparatus has a discharge pipe k, with a 3-inch stop-cock for running off the filtered solution into either of the two solution tanks, which are standing on the floor one step lower than the filter. All valves and pipes are of such a size as to secure a quick charge and discharge. The filter is provided with a gauge m, Fig.
Seite 23 - ... concentrates by agitation was preferred on account of its quicker, cheaper, and better results, as compared with percolation.