REACTIVOD DE FLOTACION

PROGRAM PROFILEM i n e r a l P ro c e s s i n g Frothers Introduction - The challenge of finding the right frother The frother plays a critical role in the flotation of precious and base metal sulfide ores. Its main function is to stabilize the bubbles that transport the hydrophobic value minerals to the surface froth zone where they can be easily collected. It is vital that your selected frother work in unison with your plant configuration and reagent scheme (promoters or collectors, and modifiers). The correct froth bed leads to a better grade of recovered value minerals, improves plant kinetics, and gives operators better control of the flotation circuit. A frother’s unique characteristic of strengthening the mineral laden bubbles allows them to coalesce without rupturing, hence forming the froth zone. Some additional characteristics that are important when choosing a frother: • It must permit sufficient froth liquid drainage so that entrained gangue minerals can be “washed out.” • It must provide good froth mobility to transport the mineral particles to the lip of the flotation cell and then into the launder. • It must be soluble or dispersible in water to allow even bubble coverage. • The froth zone must not collapse before the value minerals can be recovered, yet must be sufficiently transient so that the bubbles can break down and re-form later if desired. • It must be stable enough to carry the weight of the minerals, but not so stable that it survives beyond the launder and sumps. • It must match your mineral processing objectives. Other factors like the quality of ores, flotation process, and water chemistry affect the performance of froth in different ways from one concentrator to another or even within the same concentrator. This makes the task of selecting the correct frother for your application more challenging. How Cytec helps you Cytec understands the challenges. Whether your goal is to increase grade, kinetics, or yield, Cytec works with your staff to provide the frother that best meets your needs. Cytec’s team starts by evaluating your froth flotation circuit, studying details such as: • Plant configuration • Ore mineralogy, gangue associations • Froth persistence • pH • Froth liquid drainage • Kinetics • Frother/collector interaction • Downstream effects When recommending a solution, Cytec chooses from over 50 alcohol and glycol frothers. Cytec’s engineers and scientists work with you to develop a frother formulation that is optimized for your plant, and results in: • Improved recovery of value minerals • Better separation of gangue • Richer grade • Reduced consumption of collectors and other reagents • Lowered costs • Greater control of the flotation circuit www.cytec.com (The recommended applications for selected frothers are based on field experience and should be used only as a guide. In addition to the products described in this profile.) Your Cytec representative will be glad to further advise you on selecting frothers for testing. As a result. Your Cytec representative is ready to work with you to address your needs and meet your goals. testing.2 The chart on the following page shows a sample of Cytec’s full line of frothers. and worked on-site at. Benefits of buying from Cytec As a Cytec customer. you have Cytec’s worldwide technical experts working for you. . thousands of mines operating under varying conditions in every corner of the globe. Cytec is continuously developing new solutions to meet changing needs. For more than 90 years. Cytec is constantly innovating. and discovering new methods to maximize frother efficiency. the company has built an unequaled body of knowledge about mining reagents and how they work together to bring value to the mine owner. Cytec can help to improve your froth flotation yield and mineral recovery. Cytec has supplied reagents to. The AEROFROTH® frothers and OREPREP® frothers listed have a sufficiently wide range of applicability to fulfill any flotation requirement. low consumption. improved longevity in the rougher float row. and higher pH tolerance than conventional alcohol frothers. especially where clays and other slime minerals are present • • • • • • 76A 88 . rapid flotation of minerals in the first bank of conventional rougher flotation circuits Flotation of coarse particles at high pH. more stable and persistent than MIBC or AEROFROTH 70 frother Coal and industrial minerals flotation. and graphite flotation at neutral to slightly alkaline circuits Wide range of utility. no loss of operating control F-507 F-515 • • F-521 • • • • • • • • • • • • • • • • • • • • • F-531 F-533 • • • • • • • Formulated for specific customers. stronger than OREPREP F-521 frother in high pH systems. replaces OREPREP F-507 frother when feed rate and presence of coarse particles exceed plant design Lower consumption. tolerates different ore types and pH Increases kinetics and maintains a strength equal to or less than that of OREPREP F-507 frother. yet not as strong as OREPREP F-523 frother when 100% of process water is recycled F-535 F-547 F-549 • • Exhibits the “strength versus selectivity” properties of an alcohol joined with apolyglycol. exhibits strength and longevity Feed containing an above-normal percentage of fines. lead sulfide. used when alcohols are not persistent enough and polyglycols are too persistent F-569 F-579 F-581 F-585 F-591 F-593 F-597 X-133 X-260 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • AEROFROTH® frothers 65 70 • • • • Hard-to-froth flotation circuits. often used in coal.3 Applications of Cytec’s Frothers Frother Conventional flotation OREPREP® frothers F-501 Column flotation Primary Use Kinetics accelerator Coarse particles Medium particles Fine particles Relative Frother Strength Low Medium Strong Recommended Application/Qualities of Frother • • • • • • • • • Provides fast kinetics and low consumption in metallic sulfide flotation circuits. 4 • Email: custinfo@cytec. in its own name and on behalf of its affiliated companies (collectively. TRADEMARK NOTICE: The ® indicates a Registered Trademark in the United States and the ™ or * indicates a Trademark in the United States. All rights reserved.com US Toll Free 800-652-6013 Tel 973-357-3193 • Cytec Industries Inc. No guarantee or warranty is provided that the product is adapted for any specific use. the subject of an application for registration or a trademark in other countries.cytec. "Cytec") decline any liability with respect to the use made by anyone of the information contained herein. Cytec is the sole owner or authorized user of the intellectual property rights relating to the information communicated. regarding the accuracy. the completeness or relevance of the data set out herein). MCT-1038-V2 © 2010 Cytec Industries Inc. The mark may also be registered. The information contained herein represents Cytec's best knowledge thereon without constituting any express or implied guarantee or warranty of any kind (including. The user or purchaser should perform its own tests to determine the suitability for a particular purpose. The information relating to the use of the products is given for information purposes only. The final choice of use of a product remains the sole responsibility of the user.com Worldwide Contact Info: www. but not limited to. .