Manual of CyanidationMcGraw-Hill, 1920 - 277 σελίδες |
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Σελίδα 3
... addition of chemical oxidizing agents , such as potassium ferricyanide , permanganate , sodium peroxide , and ozone , has not been attended with much success , both on account of their cost , and also because of their tendency to ...
... addition of chemical oxidizing agents , such as potassium ferricyanide , permanganate , sodium peroxide , and ozone , has not been attended with much success , both on account of their cost , and also because of their tendency to ...
Σελίδα 7
... addition of sodium sulphide to the solution , K2Zn ( CN ) 4 + Na2S = ZnS + 2KCN + 2NaCN . For this purpose the solution was to be heated to about 65 degrees C. ( 149 deg . F. ) , and the reagent added until a faint permanent trace of ...
... addition of sodium sulphide to the solution , K2Zn ( CN ) 4 + Na2S = ZnS + 2KCN + 2NaCN . For this purpose the solution was to be heated to about 65 degrees C. ( 149 deg . F. ) , and the reagent added until a faint permanent trace of ...
Σελίδα 8
... addition of lead salts may have to be avoided . The writer has , however , recently come across several instances where the presence of zinc from zinc precipitation was distinctly detrimental to silver extraction though the addition of ...
... addition of lead salts may have to be avoided . The writer has , however , recently come across several instances where the presence of zinc from zinc precipitation was distinctly detrimental to silver extraction though the addition of ...
Σελίδα 14
... addition of a lead salt , and consequent removal of the sulphur as lead sulphide , but Caldecott1 has found that PbS is acted on by cyanide with formation of KCNS , which probably accounts for the fact that the amount of KCNS usually ...
... addition of a lead salt , and consequent removal of the sulphur as lead sulphide , but Caldecott1 has found that PbS is acted on by cyanide with formation of KCNS , which probably accounts for the fact that the amount of KCNS usually ...
Σελίδα 22
... addition of silver nitrate as it touches the solution , not keeping it in continuous agitation but allowing the bluish- white cloud formed by each addition of silver to hang for a second or two before shaking and dissolving . The finish ...
... addition of silver nitrate as it touches the solution , not keeping it in continuous agitation but allowing the bluish- white cloud formed by each addition of silver to hang for a second or two before shaking and dissolving . The finish ...
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.