dispersant thickened tailings

Patents Assigned to MBT Holding AG - Justia Patents Search

The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of ...

tilden - MSU Department of Geography

THE TILDEN MINE There are, at present, two iron mines operating in the UP--both are in the Marquette Range. This page is devoted to the Tilden Mine, although the other (Empire) Mine is equally impressive. Marquette County's Empire and Tilden mines together produce 20% of North America's iron ore.

Tailings Solvent Recovery Units | Oil Sands Magazine

A paraffin-based Froth Treatment (PFT) process produces a tailings stream that consists of fine solids, water, asphaltenes and trace amounts of bitumen and solvent. A Tailings Solvent Recovery Unit (TSRU) is used to strip-off and recycle any residual solvent, prior to disposing the tailings in a storage pond.

Hillendale thickened tailings storage facility from ...

A thickened tailings storage solution was implemented at Hillendale Mine to manage ultra-fine clay tailings over a relatively short mine life project, in an environmentally sensitive setting. Constant performance monitoring and adapting to achieve the final mine plan requirement was key to the success of fine tailings management.

Tailings co-disposal case study – art or science? - BASF SE

the heavy minerals, the tailings sands are recombined with the slimes that have been thickened to around 45% wt/wt, and the combined tailings slurry is pumped back to the mine for treatment with polymer and subsequent disposal. Total mine backfill typically consists of seven parts overburden to one

Thickening agent | definition of thickening agent by ...

thickening agent Any substance added to a liquid to increase its viscosity without substantially altering its other properties (e.g., taste, clarity) or its responses to chemical (e.g., altered pH) or physical conditions (e.g., low temperatures).

Paste and thickened tailings : a guide - GBV

TheTailings Continuum:DefiningTheBoundaries 11 2.1 PREAMBLE 11 2.2 THETAILINGSCONTINUUM 11 2.3 THECURRENTSITUATION 12 2.3.1 Conventional tailings slurry 13 2.3.2 Thickened tailings slurry 13 2.3.3 Paste 14 2.3.4 Cake 15 2.4 CLASSIFICATIONSYSTEM-BOUNDARIES 15 2.4.1 Segregation threshold 16 2.4.2 Initial settled density 16 2.4.3 Liquid limit 16 Ix

logo - Kemira.com

Our KemEcal™ dispersant product line spans a large number of acrylic–based polymers of varying molecular weights, pH, termination routes, charge densities and functionalities for desired performance characteristics. KemEguard antiscalants.

NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND …

File No: PLC/126 September 1999 NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME FULL PUBLIC REPORT Tersperse 2600 This Assessment has been compiled in accordance with the provisions of the Industrial Chemicals (Notification and Assessment) Act 1989 (the Act) and Regulations.This legislation is

advantage and disadvantage of thickening agents

Paste Tailings, Thickened Tailings, and Filtered Tailings Paste and . Thickening and filtration including a detailed description of the thickeners and filtration equipment you may have to evaluate. Reclamation including these lists of advantages and disadvantages of thickened tailings deposits vis a vis longterm reclamation: Advantages: Early ...

MINING SOLUTIONS | Product Categories | Catalyst LLC ...

CT FCL 301 is a very high molecular weight, slightly anionic polyacrylamide flocculant. It has wide variety of mineral processing operations as mentioned below: Dewatering, Potash slimes clarification, Acid leach (zinc), Acid leach CCD (copper), Acid leach CCD (uranium), Iron ore tailings clarification, Thickening of coal tailings, Base metal concentrates thickenings Filtration, etc.

Tailing Pond - an overview | ScienceDirect Topics

Jan 30, 2001· The tailings pond is a necessary facility for maintaining normal production of a mine as a place for stockpiling tailings. On the other hand, the tailings dam is a major danger for metal and nonmetal mines, because dam failure may occur. ... The thickening and filtering processes produce drier tailings, ... PSS10 dispersant (polystyrene ...

Anionic polyacrylamide(flocculant)for Copper--Chinafloc ...

The thickened tailings are normally further dewatered by filtration where a flocculant is added as a filtration aid. The copper laden froth (copper concentrate) is removed from the overflow by mechanical means and is then thickened and dewatered where flocculants are used to improve the sedimentation and filtration rates.

SNF Energy Services | Mining Industry | Polymers | SNF ...

DREDGING . SNF provides customers with sound solutions for the remediation and reclamation of contaminated and non-contaminated sediments. This can take place with any waterway, or any municipal or industrial lagoon. With an extensive range of polymers, preparation and dosing equipment manufactured in-house, and a well-seasoned team of application specialists, SNF Environmental …

Flocculants and Rheology Modifiers for Paste Thickening ...

Flocculants and Rheology Modifiers for Paste Thickening and Tailings Storage Facilities. DRYFLOC Flocculants and Rheology ModiThers ... flocculant and dispersant applications. Our product development is focused on meeting the ongoing and newly developing needs of

Thickening agent | Article about Thickening agent by The ...

thickener[′thik·ə·nər] (engineering) A nonfilter device for the removal of liquid from a liquid-solids slurry to give a dewatered (thickened) solids product; can be by gravity settling or centrifugation. Thickener an apparatus or device for thickening. Depending on the operating principle, distinctions are made between gravitational, inertial, and ...

Kemira - Mining Technology | Mining News and Views Updated ...

Dispersant technology for mineral grinding and dispersion. Process recovery varies substantially depending on the ore, the combination of metals present in the ore, and the grade of the ore being processed. ... We offer anionic, non-ionic and cationic dry powder flocculants effective in concentrate tailings thickening, high rate thickener ...

US20070209971A1 - Processing asphaltene-containing ...

Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand. Embodiments of the method can include a flotation separation and a hydrophobic agglomeration separation.

Thickener Level Controller Sludge - Thickening, Filtering ...

This was in the late 1990's, so about 15 years ago. This was an EIMCO Thickener but I cannot remember where the probe came from. Similar to the previous probe, this probe would profile the bed with many reading down the probe and determine the fluffy bed interface the thick bed interface, and we used this information for thickener bed control.

Oil & Gas | SNF Group

Tailings Management. Tailings are made up of natural materials including water, fine silts, left-over bitumen, salts and soluble organic compounds. They also include solvents that are added to bitumen during the separation process. Bitumen is derived from the oilsands deposits by open-pit mining and water based extraction techniques.

Technical Guide for Fluid Fine Tailings Management

4.2.1 Thickened Tailings The TT process is typically integrated in the extraction and tailings flow scheme (Figure 4-1). Tailings from the primary and secondary flotation circuits are cycloned to remove sand. The sand-depleted tailings stream is then fed into a thickener vessel with a

1 Froth Flotation – Fundamental Principles

1 1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a

Effect of various treatments on consolidation of oil sands ...

tests on these treated fine tailings. The consolidation and shear strength of the treated FFT were then compared with those of untreated FFT to assess the effects of the treatments. Characterization of the tailings Six tailings samples have been tested in this research: a typical untreated FFT and five thickened tailings (TT 1 to TT 5) that were

Tailings.info Thickened Tailings Storage - A discussion

dispersant thickened tailings Thickening of Mature Fine Oil Sands Tailings. Western University [email protected] Electronic Thesis and Dissertation Repository December 2014 Thickening of Mature Fine Oil Sands Tailings Shriful Islam. Live Chat; ld kg most efficient excellent thickening agent. oil modified polyamide wax dispersant thickening ...

microbiology of oil sands tailings: past, present, future ...

Oil sands tailings harbor diverse microbes that generate greenhouse gases, biodegrade hydrocarbons, transform minerals, consolidate fine tailings in ponds and i ... trisodium citrate rather than NaOH has been used during extraction as a clay dispersant during extraction; and (v) tailings are thickened by addition of polyacrylamide before ...

Processing asphaltene-containing tailings - Western Oil ...

Sep 13, 2007· Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand.

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

Surface Paste Tailings Disposal - Tailings.info The ...

However, thickened and paste tailings storage will become more popular particularly as the day to day management aspects are not as intense as conventional storage techniques. As well as the advantages of thickened tailings storage as discussed in the thickened tailings section, some additional advantages of paste disposal are:

Extraction of Tungsten from Scheelite Ore

The tailings from the slime tables and the hydraulic classifier slime overflow pulp must be thickened to approximately 20 to 25% solids for subsequent flotation. The underflow from the thickener is metered by a Adjustable Stroke Diaphragm Pump to the Conditioner where reagents are added.

Introduction - acg.uwa.edu.au

xiv 7 Thickening 113 7.1 .....PREAMBLE 113

US7585407B2 - Processing asphaltene-containing tailings ...

Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand. Embodiments of the method can include a flotation separation and a hydrophobic agglomeration separation.

Paste thickening optimizes tailings disposal and water ...

May 01, 2015· Mine tailings disposal, and its impact on water usage, is an important concern for any mining company. The challenge today, whether extracting aluminum, zinc, gold or iron ore, is how to dispose of tailings material such that it is contained and …

Model for yield stress of quartz pulps and copper tailings ...

Request PDF on ResearchGate | Model for yield stress of quartz pulps and copper tailings | The yield stress model based on the concept of degrees of freedom of a particulate system in an aqueous ...