Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα 2
... amount of soluble sulphide without precipitation of the silver . The reaction expressed by the equation Ag2S + 4KCN = K2S + 2KAg ( CN ) 2 is reversible , and its direction depends on the relative proportions of free cyanide and soluble ...
... amount of soluble sulphide without precipitation of the silver . The reaction expressed by the equation Ag2S + 4KCN = K2S + 2KAg ( CN ) 2 is reversible , and its direction depends on the relative proportions of free cyanide and soluble ...
Σελίδα 3
... amount is most easily supplied in the case of percola- tion by draining dry between washes , and by the use of air lifts or centrifugal pumps , in agitation . The addition of chemical oxidizing agents , such as potassium ferricyanide ...
... amount is most easily supplied in the case of percola- tion by draining dry between washes , and by the use of air lifts or centrifugal pumps , in agitation . The addition of chemical oxidizing agents , such as potassium ferricyanide ...
Σελίδα 6
... amount up to 0.1 % or 0.13 % CaO . When the solution from the barren sump is thrown back to the mill and comes in contact with ore and fresh lime the free cyanide indicated by titration will often be found to rise in strength 40 or 50 ...
... amount up to 0.1 % or 0.13 % CaO . When the solution from the barren sump is thrown back to the mill and comes in contact with ore and fresh lime the free cyanide indicated by titration will often be found to rise in strength 40 or 50 ...
Σελίδα 9
... amount of cyanide that combines with the gold in an average ore is negligible , but with silver it is different owing to the much larger quantity of metal that has to be dealt with to produce commercial results . If the final result be ...
... amount of cyanide that combines with the gold in an average ore is negligible , but with silver it is different owing to the much larger quantity of metal that has to be dealt with to produce commercial results . If the final result be ...
Σελίδα 10
... amount according to circumstances , may be classed as a permanent loss . For reactions in zinc precipitation see Chapter X. A 3. Mechanical Losses . - Omitting losses of solution by leakage and runovers , there is always a loss of ...
... amount according to circumstances , may be classed as a permanent loss . For reactions in zinc precipitation see Chapter X. A 3. Mechanical Losses . - Omitting losses of solution by leakage and runovers , there is always a loss of ...
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.