Zinc Determination Method by Titration
You can perform a Zinc determination using this titration method with methyl orange as your indicator. To 0.5 grams of sample add 10 cc’s HCl and boil for several minutes. Add 3 drops of NH3 and boil until the NH3 is expelled. Add 40 cc’s NH4Cl solution and 15 cc’s NH4OH and bring to a boil. Filter […]
Iodide Method for Copper Analysis
A simple titration using iodide was turned into a method for assaying copper and obtain reliable analysis. To .5 grams of sample in a 250 cc beaker add 8 cc’s of HN03 and after violent action has ceased place on low temperature plate and decompose slowly until all brown fumes of nitrous oxide are expelled. […]
Electrolytic Determination of Copper | Assay
If you need a method for the Electrolytic Determination (Assay) of Copper, use this procedure: Weigh out sample. In the case on concentrate use .5 grams, with the ore use 1 gram. Decompose slowly with nitric acid on the hot plate using a few crystals of KC103 after the nitrous oxide fumes are expelled. Omit the […]
Relative Bond Work Index BWi | Comparative Grindability Test Procedure
The test is designed to give a reasonable indication of the grinding work index of an ore material relative to one or more known standards. It is not applicable to mill tailings material. Basic Equipment Set of screens @ 75 to 2440 micron sizes. Ro-Tap Sieve Shaker Ball mill rolls CMS ball mill No.1 with approximately […]
Lead Assay Titration with Ammonium Molybdate
1 gram of sample is decomposed with longer appear 10 cc’s of H2SO4 is added. This solution is evaporated to dryness and allowed to cool. Add 10 cc’s H2SO4 and 65 to 70 cc’s H2O and heat to boiling to dissolve all soluble salts. Do not boil! Filter by decantation and wash three times with […]
Determination of Nickel using Dimethylglyoxime
To obtain a gravimetric determination of nickel using dimethylglyoxime: Weigh and measure a sample so that not over 100 mg. Of nickel present. Add 10 cc’s of nitric acid .5 to .1 grams of potassium chlorate and digest on the steam plate adding more potassium chlorate if necessary to effect solution. Evaporate to dryness. Cool […]
Sodium Thiosulphate (Hypo) and Fluoride to Assay for Copper
Assay copper using fluoride and Sodium Thiosulphate (Hypo) to titrate with, you’ll need: 8 cc’s of nitric acid are placed on given weight of sample and heated on the hot plate. Potassium Chlorate is added when all brown fumes have been driven off. 10 cc’s water are added and solution is again heated then taken […]
Colorimetric Analysis of Copper Assay Method by Color
Colorimetric Assays Colorimetric Assays are assays in which the colour imparted to a solution by some compound of the metal to be determined is taken advantage of; the depth of colour depending on the quantity of metal present. They are generally used for the determination of such small quantities as are too minute to be weighed. […]
Impact Work Index Procedure
This is or was used by Sandvik to acquire the Impact (AKA Crushing) Work Index for sizing crushers. Use this in complement to the Bond Crushing Work Index Procedure. Another Summary Table of various Impact Work Index by Rock or Mineral Type (/metric tonne). Find a referential Rod Mill Work Index Table here.
Bond Grindability Test Procedure
The Bond Ball Mill Grindability test is designed to give a measure of the grinding characteristics of a material by finding the amount of size reduction resulting from a controlled energy input. Ball Mill Grindability of a material depends upon its hardness, structure, the manner in which it is fractured. The grindability is useful in evaluating power requirements […]