Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα 2
... excess of potassium cyanide will tolerate the presence of an ap- preciable 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 ...
... excess of potassium cyanide will tolerate the presence of an ap- preciable 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 ...
Σελίδα 6
... excess of lime was added to a por- tion of the solution , and after a few hours ' agitation it was filtered clear . A titration now indicated that about half of the combined cyanide originally present had been decomposed , and was ...
... excess of lime was added to a por- tion of the solution , and after a few hours ' agitation it was filtered clear . A titration now indicated that about half of the combined cyanide originally present had been decomposed , and was ...
Σελίδα 11
... excess of caustic alkali the tendency is minimized to a large extent . 2 Recently some interesting experiments have been made on the Rand by H. M. Leslie , and the loss of cyanide in the form of HCN demonstrated by covering the tops of ...
... excess of caustic alkali the tendency is minimized to a large extent . 2 Recently some interesting experiments have been made on the Rand by H. M. Leslie , and the loss of cyanide in the form of HCN demonstrated by covering the tops of ...
Σελίδα 13
... excess of that which would be obtained in practice . If such a sample is weighed up wet and at once transferred to cyanide treatment , the cyanide consumption due to formation of ferrocyanide may run into several pounds per ton of ore ...
... excess of that which would be obtained in practice . If such a sample is weighed up wet and at once transferred to cyanide treatment , the cyanide consumption due to formation of ferrocyanide may run into several pounds per ton of ore ...
Σελίδα 21
... excess of the correct figure , and this excess error will be greater in proportion as the amount of free alkali is greater , until , if the latter happens to be about 0.08 % ( in terms of NaOH ) or over , the reading sup- posed to ...
... excess of the correct figure , and this excess error will be greater in proportion as the amount of free alkali is greater , until , if the latter happens to be about 0.08 % ( in terms of NaOH ) or over , the reading sup- posed to ...
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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.