Currently, heap-leaching operations are plagued by poor permeability of the heap, which leads to uneven distribution of the leaching solution, unleached zones in the heap, and low metal recovery. This poor permeability is caused by excessive amounts of fine particles clogging the spaces between larger ore particles. By agglomerating ores, individual ore particles will be held together in coarse, porous masses with the use of a binder. In addition to benefits for heap leaching, agglomeration is a critical factor in the success of the Iron Ore Industry. This process requires the formation of strong agglomerates of coal, iron oxide, and flux without heat treatment, and at a minimal cost.
Unfortunately, there are no known agglomeration binders that will work satisfactorily in the acidic environment encountered in many heap-leaching operations, and few binders that will produce high strengths without sintering. Alkaline binders, for instance, are destroyed by acid attack, and are thus completely unsuitable for use in acidic leaching heaps. Other binders are synthetic polymer compounds, but many of these binders also perform poorly in acidic environments. In most cases their synthesis costs are so high that they are impractical. As a result, operators of acidic heap-leach facilities cannot take full advantage of the agglomeration technique.
Because of problems with effectiveness or cost, all binders that have been evaluated to date for use in acidic heap leaching have either performed poorly, or proved to be too expensive for commercial use. Furthermore, mixing problems in all types of heap leaching operations has led to significantly more binder usage than necessary. The large quantity of ore that must be handled in heap-leaching operations requires that the binder must be kept to low dosages to be economical.
Researchers will select the binders to be studied in this project based on theoretical considerations, with particular emphasis on low-cost reagents or industrial wastes/ byproducts that are expected to be particularly acid-resistant. The use of advanced compressive shear mixing technology will further reduce binder cost by ensuring that the binder is used with the greatest possible efficiency. Michigan Technological University, along with their project partners, will focus on developing a more broadly usable binder and a more efficient binder/ore mixing method that will benefit all heap-leaching operations that use agglomeration. The project will improve energy efficiency by increasing metal recovery during heap leaching, reducing the quantity of ore that must be handled and prepared to produce a given amount of metal.
Another result of the project will be the decreased land area required for leaching pads due to the increased processing efficiency, which not only reduces cost, but also simplifies design to prevent spills and groundwater contamination. Boosting the use of heap leaching will also generate lower emissions than are currently generated by conventional smelting techniques. The binders developed are expected to benefit the agglomeration of feed pellets for use in the Iron Nugget process, which will make it possible to implement this process as a high-efficiency, environmentally-sound replacement for blast furnace technology.
Pingback:ebnfjhmpr
Pingback:adwords information
Pingback:Tarzan vibrator
Pingback:เกมส์ทําอาหารไก่งวง
Pingback:\Citalopram side effects\
Pingback:lennot
Pingback:เกมส์ จัดห้อง
Pingback:Amoxicillin alcohol
Pingback:เกมแต่งหน้าเจ้าสาว
Pingback:Weapons Wallpapers
Pingback:pikalainaa
Pingback:routing number, aba routing, bank routing number, aba routing number, routing transit number
Pingback:Para Ma
Pingback:zyzz stats
Pingback:traveldivaonline.com
Pingback:window cleaners putney
Pingback:cat repellent
Pingback:List Building Tools
Pingback:Toothache culver city
Pingback:time and gems
Pingback:Fleshlight
Pingback:ADHD Statistics
Pingback:architecture firms in Las Vegas
Pingback:certified nursing assistant salary
Pingback:Cafe Rouge Vouchers
Pingback:restoration services York PA
Pingback:ATM rentals
Pingback:patio design Marlboro
Pingback:plants
Pingback:Inland Empire Attorneys
Pingback:Mysore tour
Pingback:school fundraising
Pingback:exterior house painting thousand oaks
Pingback:Milton Keynes Escorts
Pingback:flag football plays
Pingback:MK Escorts
Pingback:vancouver cedar roofing
Pingback:Escorts In Milton Keynes
Pingback:Charlotte NC Real Estate
Pingback:offers in Thessaloniki
Pingback:Levi's 514
Pingback:ipage coupon review
Pingback:electronic cigarette
Pingback:orlando web design
Pingback:Best Multi Level Marketing Companies
Pingback:Escort girl Paris
Pingback:Website
Pingback:knowyourmeme.com/users/andersonwindows
Pingback:Windows
Pingback:cheap zynga chips
Pingback:how to gain weight
Pingback:adsense alternative
Pingback:harvard referencing generator
Pingback:Solar panels
Pingback:natural remedies for acne
Pingback:dub turbo review
Pingback:Force Factor Testx 180
Pingback:merchant service provider
Pingback:Computer Backup
Pingback:ecig review website
Pingback:pondless avalanche
Pingback:IIN
Pingback:screwdriver ecig
Pingback:Cum
Pingback:electronic cigarette on sale
Pingback:Berlin Kunstdrucke
Pingback:Personal injury attorney
Pingback:cistilni servis Ljubljana
Pingback:Cat Supplies
Pingback:hiring truck drivers
Pingback:Zrce
Pingback:how to make your penis grow
Pingback:Latino PR Firm
Pingback:photographers in leeds
Pingback:searscard
Pingback:buy wii u
Pingback:Troubled Teens Schools
Pingback:cash for start-up
Pingback:perfumes for women
Pingback:Pool Grout
Pingback:information on top web hosts services
Pingback:keurig b70 review
Pingback:cheap hotel rooms
Pingback:Medical Clinic Englewood Colorado
Pingback:Cheap Digital Piano
Pingback:bağlama büyüsü
Pingback:Get Instant Cash for Trying Everyday Items
Pingback:best portable generator review
Pingback:wwwyoutube.com/watch?v=H9qDD7FuKRY
Pingback:crear tienda virtual
Pingback:Flyttefirma
Pingback:payday loans
Pingback:speeches for wedding
Pingback:http://www.ehow.com/info_8032712_kitchen-counter-materials.html
Pingback:college grant
Pingback:Sexnoveller
Pingback:24hr emergency auto repair rochester ny
Pingback:fax software
Pingback:Roof Repair Columbus OH
Pingback:Friv Game
Pingback:view the coupons
Pingback:music online
Pingback:wall panelling
Pingback:bathroom and tiles
Pingback:Pilot Training
Pingback:popularhyip
Pingback:challenge coins
Pingback:online business review
Pingback:hydraulic pump
Pingback:heatmap
Pingback:theater ticket online
Pingback:Painting Company Atlanta
Pingback:Fontana Eye Exam
Pingback:Job Search
Pingback:paginas web valencia
Pingback:from newbie to millionaire
Pingback:divorce lawyers leeds
Pingback:Domain host
Pingback:cheap stocks
Pingback:Make boobs bigger
Pingback:xplod
Pingback:Merchant Account
Pingback:Linfa y tratamientos
Pingback:Watch Movies Online Free
Pingback:Trophies
Pingback:online job
Pingback:kado unik
Pingback:interior design Denver Colorado
Pingback:Karen Millen Outlet Online
Pingback:growth
Pingback:paket internet
Pingback:phone lookup free
Pingback:smart investments
Pingback:online war games
Pingback:Cosmetic Dentist Indianapolis
Pingback:farm supplies
Pingback:how unlock an iphone
Pingback:renewable energy world
Pingback:website maken
Pingback:strom
Pingback:Sizzling Hot
Pingback:http://www.zrcenovalja.com
Pingback:Interior house painting
Pingback:Casas de Lujo en Miami
Pingback:bestaande keuken
Pingback:Sex show
Pingback:liquid raspberry ketones
Pingback:brand strategist
Pingback:natural breast enhancement
Pingback:Mixtape cover designer
Pingback:wholesale jeans
Pingback:Bet365
Pingback:Interior Designers Denver
Pingback:Location Villa Ile Maurice Avec Piscine
Pingback:buy youtube views
Pingback:losangelesdentalarts.com/dentist-culver-city
Pingback:3D Blu Ray Player
Pingback:San Francisco Divorce attorneys
Pingback:search engine optimization certification
Pingback:social security lawyer
Pingback:Top Battery Chargers
Pingback:norwich escorts
Pingback:Saisonniere Ile Maurice
Pingback:Lawyers
Pingback:compromiso
Pingback:asian women dating
Pingback:Accounting Careers
Pingback:juegos para nokia c3
Pingback:Free SEO Tool
Pingback:descargar juegos para pc
Pingback:Naturopathe
Pingback:bodas en cartagena de indias colombia
Pingback:http://www.pvc-cladding.co.uk/wall-cladding.php
Pingback:Social Bookmark
Pingback:Villas in Mauritius
Pingback:NH dental insurance
Pingback:red welts
Pingback:Goldankauf Dresden
Pingback:Zulutrade
Pingback:Mauritius Villa Rental
Pingback:tutor perth
Pingback:payday loans
Pingback:win at roulette
Pingback:auto repair rochester ny
Pingback:Kitchen Remodeling NY
Pingback:seo nashville
Pingback:ios jailbreaking
Pingback:tamashebi
Pingback:backlinks
Pingback:L5S1
Pingback:aqui
Pingback:Awesome post! Hey, make sure you check out how I lost over 70 pounds:
Pingback:shade sails perth
Pingback:Sex
Pingback:bookcase walls
Pingback:Creatine
Pingback:Magnetmotor howard johnson
Pingback:sexanzeigen
Pingback:quickest way to lose belly fat
Pingback:buying a home
Pingback:jailbreak iphone 4 advantages
Pingback:sex
Pingback:Plastic Surgery In The Philippines
Pingback:Piccadilly Debt Collectors
Pingback:raspberry ketone
Pingback:Disney Pin Trading
Pingback:Debt Consolidation
Pingback:wen hair care reviews
Pingback:cheap nba jerseys
Pingback:Perfume Joy
Pingback:tuition singapore
Pingback:watch glee free online
Pingback:legal protection insurance
Pingback:legal insurance
Pingback:promo video
Pingback:vente maroc
Pingback:energy healing
Pingback:paid online surveys scam
Pingback:how to make money fast
Pingback:celebrity pictures
Pingback:Euro 2012 Live Online