Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα viii
... alkali , because nearly all ores contain acid or tend to develop it during the course of treatment , and acids react with the alkaline cyanide to form hydrocyanic acid , HCN , thus involving a loss of the active reagent KCN . The alkali ...
... alkali , because nearly all ores contain acid or tend to develop it during the course of treatment , and acids react with the alkaline cyanide to form hydrocyanic acid , HCN , thus involving a loss of the active reagent KCN . The alkali ...
Σελίδα ix
... Alkali Determination . Zinc Determination Copper Determination Ferrocyanide Determination . 26 30 33 36 Sulphocyanate Determination . Cyanate Determination by Distillation of Ammonia 39 41 PAGE Ammonia and Ammonium Salts Determination ...
... Alkali Determination . Zinc Determination Copper Determination Ferrocyanide Determination . 26 30 33 36 Sulphocyanate Determination . Cyanate Determination by Distillation of Ammonia 39 41 PAGE Ammonia and Ammonium Salts Determination ...
Σελίδα xiii
... Alkali Consumption 218 Test for Fineness of Grinding 218 Screen Sizing Tests . 220 " " ' All - sliming " Tests . 221 Grinding to a Given Screen Size Computing Cyanide Consumption Computing Extraction Obtained . Leaching Tests ...
... Alkali Consumption 218 Test for Fineness of Grinding 218 Screen Sizing Tests . 220 " " ' All - sliming " Tests . 221 Grinding to a Given Screen Size Computing Cyanide Consumption Computing Extraction Obtained . Leaching Tests ...
Σελίδα 6
... alkali on the double cyanide with the formation of an alkaline zincate and free cyanide , K2Zn ( CN ) , + 4KOH K2ZnO2 + 4KCN + 2H2O . This reaction is no doubt reversible so that the dissociated cyanide would tend to re - combine with ...
... alkali on the double cyanide with the formation of an alkaline zincate and free cyanide , K2Zn ( CN ) , + 4KOH K2ZnO2 + 4KCN + 2H2O . This reaction is no doubt reversible so that the dissociated cyanide would tend to re - combine with ...
Σελίδα 10
... alkali , acids present in the ore decompose the cyanide with formation of hydrocyanic acid . Heating of solutions tends to the formation . of formates , HCO2R and possibly acetates , CH3CO2R . Oxida- tion by atmospheric air forms ...
... alkali , acids present in the ore decompose the cyanide with formation of hydrocyanic acid . Heating of solutions tends to the formation . of formates , HCO2R and possibly acetates , CH3CO2R . Oxida- tion by atmospheric air forms ...
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.