MENÜ
Figure 9: Correlations to Bond Work Index: (A) Effect of modulus of elasticity of the different studied materials on Bond work index, (B) Effect of compressive strength of the different studied materials on Bond work index, (C) Effect ... Figure 30 (A) Microscopic picture of Polished section of Rougher concentrate (106-150 micron), (B) Hydrocyclone
Details
The Bond work index determination according to the standard Bond's test is done on all these samples with compara-tive sieve size of 74, 105 and 150 microns. The Bond Work Index is calculated using the formula (Bond, 1961): (√ √) (1) where: W i – Bond work index (kWh/t); P c – test sieve mesh size (µm);
Details 
The ball mill work index laboratory test is conducted by grinding an ore sample prepared to passing 3.36 mm (6 mesh) to product size in the range of 45-150 µm (325-100 mesh), thus determining the ball mill work index (Wi B or BWi). The work index …
Details 
A cassiterite ore (SG 7.0) was crushed in a jaw and cone crusher yielding a product whose average size was 25% greater than 16 mesh. The crushed ore was screened on a 16 mesh screen having a clear opening of 1 . mm (wire diameter 0.59 mm) inclined at 20° to the horizontal.. Calculate:1, the screen area required for a feed rate of 60 t/h,. 2. the change …
Details 
Bond's work index model of quantifying mineral grindability was born out of the desire for a better way of scaling up laboratory grindability test results to industrial-scale grinding mills (Lynch & Rowland, 2005). The Allis-Chalmers company (now ) collected a great deal of operating and laboratory data during the 1930s
Details 
Unprocessed ore typically trades at a discount of 20% - 30% of the LME spot price. Below is a hypothetical example of a 10mt load of cassiterite that contains 60% Sn with the current LME spot price of Tin at $25,000/mt. The purchase price will be a 20% discount on the LME spot price. 10,000kg x 60% = 6,000kg (6mt) Sn (total amount of Sn)
Details 
Bond Work Index Tables (Wi) - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. Here there are given tables from various sources for the Bond work index values of mining materials (ores, industrial minerals and rocks). These work indexes can be used for the determination of tumbling mills (rod, ball mills) power.
Details 
Oct 07, 2015· The word Bond is synonymous with grinding circuit design, e.g. Bond Grindability and Bond Work Index. Fred Bond's work on circuit design occurred from the late 1930s to the mid 1960s and it changed the method of design completely. In the pre-Bond era the prediction of the power required per tonne to grind material to a known …
Details 
Find the latest published documents for bond work index, Related hot topics, top authors, the most cited documents, and related journals bulk cleaner flotation and one carbonate reverse flotation at ore grind size of 86% passing 53 µm led to a phosphate concentrate assaying 28.68% P2O5, 12.06% SiO2, 0.72% MgO and 46.98% CaO, at a P2O5 Sep 19 …
Details 
Jun 24, 2021· The cassiterite concentrate produced from the beneficiation process is expected to be used as feed for the smelting process. Beneficiation results of primary tin ore (oxide and skarn samples) showed that cassiterite (SnO 2) content were 15.09% and 40.03%, respectively and the recovery was 42.9% and 11.87%, respectively. The …
Details 
Find the latest published documents for bond work index, Related hot topics, top authors, the most cited documents, and related journals ... bulk cleaner flotation and one carbonate reverse flotation at ore grind size of 86% passing 53 µm led to a phosphate concentrate assaying 28.68% P2O5, 12.06% SiO2, 0.72% MgO and 46.98% CaO, at a P2O5 ...
Details 
BOND WORK INDEX. The Bond Work Index is a factor that measures the energy consumed in size reduction operation of the ore. The Bond's Work Index equation is: W=WI* (10/√P80 -10/√F80) where. W= the energy input (Work input) per ton, kwh/metric ton. WI= Work Index= specific energy per ton, kwh/metric ton (characterizes the ore)
Details 
The Bond ball mill work index is one of the most commonly used grindability tests in mining, ... The work index is used to calculate the energy requirement to grind rocks in the fine size range, below 2.5 mm into the range of a few hundreds of micrometres. Heterogeneous ore types typically are sensitive to the product size of the test, and the ...
Details Tin recovery to final concentrate varies widely, from about 50% in small simple operations to up to 80% or higher in efficient operations. Recovery from placer deposits tends to be …
Details
In the conventional reverberatory furnace process, cassiterite (SnO 2) is reduced to tin metal by heating with carbon at 1200–1300°C (2192–2372°F).Tin concentrate is smelted to resmelted slag for additional tin recovery. The furnace charge consists of tin ore (cassiterite), a carbon reducing agent (coke), and limestone and silica fluxes.
Details 
Calculated Properties of Cassiterite : Electron Density: Bulk Density (Electron Density)=6.26 gm/cc note: Specific Gravity of Cassiterite =7.15 gm/cc. Fermion Index: Fermion Index = 0.13 Boson Index = 0.87 : Photoelectric: PE Cassiterite = 247.66 barns/electron U=PE Cassiterite x r barns
Details 
Dec 27, 2017· Tin is a chemical element with symbol Sn and atomic number 50. Tin is a silvery-white metal. The most common Tin Ore is Cassiterite. Tin is used to coat other metals to prevent corrosion, such as in tin cans, which are made of tin-coated steel. Tin is used in many specialized alloys including pewter and bronze.
Details 
Nov 22, 2015· The Bond ball mill work index (Wi BM, or BWi) conducted from a feed size of approximately 2 mm to a product size on the order of 100 µm. The Bond rod mill work index (Wi RM, or RWi) conducted from a feed size of approximately 10 mm to a product size on the order of 1 mm. The Bond crushing (impact) work index (Wi C, CWi, LEIT or IWi) …
Details
Extraction of tin consists of three parts, i.e. tin ore concentration, smelting and refining. Cassiterite is the main source of tin ore, with specific gravity of 6.8-7g/cm 3, density larger than most of gangue.Therefore, 90% of tin concentrate is mainly obtained from cassiterite through gravity separation. get price
Details Telif Hakkı © 2023 Artom Industry & Technology Group Co., Ltd.
