Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα vii
... action of an alkaline cyanide solution on the precious metals . The first step in the process is to mill or grind the ore to a fine state of subdivision so as to expose each particle of precious metal to the action of the solvent . The ...
... action of an alkaline cyanide solution on the precious metals . The first step in the process is to mill or grind the ore to a fine state of subdivision so as to expose each particle of precious metal to the action of the solvent . The ...
Σελίδα ix
... Action of Cyanide on Gold and Silver Reaction of Cyanide with Silver Sulphide Function of Oxygen Reducing Agents . Effect of Temperature Dissolving Effect of Zinc - potassium Cyanide . Cyanide Regeneration Crosse's Process of Cyanide ...
... Action of Cyanide on Gold and Silver Reaction of Cyanide with Silver Sulphide Function of Oxygen Reducing Agents . Effect of Temperature Dissolving Effect of Zinc - potassium Cyanide . Cyanide Regeneration Crosse's Process of Cyanide ...
Σελίδα xii
... Action of Oxygen in Precipitation The Crowe Vacuum Process . The Zinc - Lead Couple Solution Containing Copper Method of Working when Using Zinc Shavings Capacity of Zinc Boxes . Zinc Dust Precipitation . 173 174 176 176 177 178 178 ...
... Action of Oxygen in Precipitation The Crowe Vacuum Process . The Zinc - Lead Couple Solution Containing Copper Method of Working when Using Zinc Shavings Capacity of Zinc Boxes . Zinc Dust Precipitation . 173 174 176 176 177 178 178 ...
Σελίδα 1
... action . The potassium sulphide , however , happens to be very sensitive to oxidation so that a change rapidly takes place , probably in two directions , ( 1 ) K , S + KCN +0+ H2O = KCNS + 2KOH K , S + KCN ( 2 ) 2K2S + 202 + H2O ...
... action . The potassium sulphide , however , happens to be very sensitive to oxidation so that a change rapidly takes place , probably in two directions , ( 1 ) K , S + KCN +0+ H2O = KCNS + 2KOH K , S + KCN ( 2 ) 2K2S + 202 + H2O ...
Σελίδα 2
... action of cyanide on silver sulphide it is interesting to note that a solution of the double cyanide of potassium ... action either by oxida- tion or precipitation as an insoluble sulphide the equilibrium is 2 MANUAL OF CYANIDATION ...
... action of cyanide on silver sulphide it is interesting to note that a solution of the double cyanide of potassium ... action either by oxida- tion or precipitation as an insoluble sulphide the equilibrium is 2 MANUAL OF CYANIDATION ...
Άλλες εκδόσεις - Προβολή όλων
MANUAL OF CYANIDATION E. M. (Edward Montague) 1871? Hamilton Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acid added agitation alkali aluminium amount antimony assay value Borax bottle bottom boxes BrCN brittle bullion cake carbonate caustic soda cent charcoal charge clean compartments concentrate containing copper cubic cupel cyanide consumption cyanide process cyanide solution cyanide strength decantation decinormal dilution discharge dissolved distilled water Dorr dry slime extraction ferrocyanide filter flask flux free cyanide gold and silver grams grinding inches iodine launder leaching lime litharge litre loss manganese melting mesh method mill moisture necessary Nipissing nitric acid obtained oxide oxygen Pachuca pass percolation pipe plant potassium pounds precious metal precipitation present pulp pump quantity removed residue sample sand screen sieve silver nitrate slag slime soda ash sodium carbonate sodium sulphide solu soluble specific gravity standard stock solution sufficient sulphate sulphide TABLE tank Thickener tion titration tonnage tons treated treatment usually wash weight writer zinc zinc dust сс сс сс
Δημοφιλή αποσπάσματα
Σελίδα 243 - Cl Cr Co Cb Cu Dy Er Eu F Gd Ga Ge Au Hf He Ho H In I Ir Fe Kr La Pb Li Lu Mg Mn Hg...
Σελίδα 244 - Square Measure. 144 square inches 1 square foot, 9 square feet 1 square yard, 30J square yards 1 square rod, 40 square rods 1 rood, 4 roods 1 acre.
Σελίδα 245 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 246 - MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram eg. 10 centigrams =1 decigram dg. 10 decigrams =1 gram g. 10 grams =1 decagram Dg. 10 decagrams =1 hectogram Hg. 10 hectograms = 1 kilogram Kg.
Σελίδα 243 - Radium Rhodium Rubidium Ruthenium Samarium Scandium Selenium Silicon Silver Sodium Strontium Sulphur Tantalum Tellurium Terbium Thallium Thorium Thulium. . . Tin Titanium Tungsten Uranium Vanadium Xenon Ytterbium Yttrium Zinc Zirconium Symbol. Mo Nd Ne Ni Nt N Os O Pd p...
Σελίδα 245 - Troy Weight. 24 grains (gr.) - 1 pennyweight (dwt.) 20 pennyweights — 1 ounce (oz.) 12 ounces — 1 pound (1b.).
Σελίδα 245 - Dry Measure. — 2 pints = 1 quart; 8 quarts = 1 peck; 4 pecks = 1 bushel.
Σελίδα 238 - Administration of the antidote. If the patient is conscious, make him swallow the mixture at once, and lie down for a few minutes. If the patient is not conscious, place him on his back and pour the mixture down his throat in small quantities, if necessary pinching his nose in order to make him swallow.
Σελίδα 244 - ... sq. yds. = 1 sq. rod. 40 sq. rods — 1 sq. rood. 4 sq. roods = 1 acre. 640 acres = 1 sq. mile.
Σελίδα 238 - ... know how to use it should occasion at any time arise. The apparatus should never be allowed to be removed from its place, but always kept complete and ready for an emergency. It is advisable to keep it in duplicate, in prominently marked positions in the works.