Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα 12
... iron , such as may result from crushing and grinding operations , is slowly acted on by cyanide , as expressed in the equation Fe + 6KCN + 2H2O = K4Fe ( CN ) 6 + 2KOH + H2 . 1 Cyaniding Gold and Silver Ores , page 112 ( Second Edition ) ...
... iron , such as may result from crushing and grinding operations , is slowly acted on by cyanide , as expressed in the equation Fe + 6KCN + 2H2O = K4Fe ( CN ) 6 + 2KOH + H2 . 1 Cyaniding Gold and Silver Ores , page 112 ( Second Edition ) ...
Σελίδα 13
... iron surfaces used for grind- ing , more particularly by the use of flint pebbles in place of iron balls for regrinding and silex or El Oro liners instead of iron or steel . The effect of iron may often be seen to a very marked degree ...
... iron surfaces used for grind- ing , more particularly by the use of flint pebbles in place of iron balls for regrinding and silex or El Oro liners instead of iron or steel . The effect of iron may often be seen to a very marked degree ...
Σελίδα 36
... iron and calculating to ferro- cyanide . It must of course be assumed that all the iron found occurs in that form , but as ferricyanides are most unlikely to be present in ordinary circumstances the assumption is a fairly safe one . As ...
... iron and calculating to ferro- cyanide . It must of course be assumed that all the iron found occurs in that form , but as ferricyanides are most unlikely to be present in ordinary circumstances the assumption is a fairly safe one . As ...
Σελίδα 37
... Iron . - If the quantity of iron is very small it is best estimated colorimetri- cally by at once dissolving the precipitate in hydrochloric acid and carefully washing the filter paper . A standard solution of ferric iron is prepared by ...
... Iron . - If the quantity of iron is very small it is best estimated colorimetri- cally by at once dissolving the precipitate in hydrochloric acid and carefully washing the filter paper . A standard solution of ferric iron is prepared by ...
Σελίδα 38
... iron obtained from the cyanide solutions be large enough to be determined by reduction and direct titration , the ... Iron Solution . paper free from iron . Clennell1 recommends boiling this solution with clean aluminium turnings until a ...
... iron obtained from the cyanide solutions be large enough to be determined by reduction and direct titration , the ... Iron Solution . paper free from iron . Clennell1 recommends boiling this solution with clean aluminium turnings until a ...
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.