Flotation Depressants
Florrea consists of selective depressants and flotation optimisers for a broad range of gangue minerals in mineral beneficiation processes.
They can offer a significant economic advantage in the flotation of minerals by reducing smelter penalties, increasing grades and recovery of mineral concentrates.
Key Benefits:
Improved grade and recovery
Depression of penalty elements
Excellent EHS profile
Non-toxic
Sustainable products from renewable sources
Our flotation depressants are proven to be effective on a variety of gangue minerals:
Sulfide minerals, like pyrite, pyrrhotite, arsenic and bismuth sulfides
Oxide minerals, like silicates, talc and calcite
Clays and graphite
Sulfate minerals, like baryte and gypsum
Ore types depressed | Minerals depressed | Ores to be treated | Florrea depressant | Good replacement for |
Iron sulfide ores | Pyrite | Base metal Sulfide ores | D16,D17 | Cyanide, Lime |
Pyrrhotite marcasite | Base metal Sulfide ores | D16,D17,D171 | Cyanide, Lime | |
Arsenic sulfide ore | ARSENOPYRITE | Au Cu Au Polymetallic complex ores | D171 |
|
Pyrrhotite and arsenides | Pyrrhotite and arsenides | Cu-Ni | D125 D125A | |
Copper sulfide ores | copper | Cu-Mo | D159 D174 | Na2S,NaSH,Nokes reagent, sodium thioglycolate |
Lead sulfide ores | Galena | Cu-Pb-Zn, Pb-Zn | D121 | Sodium dichromate, Cyanide |
Zinc sulfide ores | sphalerite | Cu-Pb-Zn, Cu-Zn, Pb-Zn | D175 | Zinc sulphate Sodium metabisulphite |
bismuth-containing gangue minerals. | Bismuth | Cu-Au Bismuth | D121 | Sodium dichromate, cyanide |
fluorine | Cu-Au | D106,D120,D181 | ||
Carbonate gangue | Calcite | Cu | D136, D137 | |
Calcite | Fluorite, Tungsten,Tin,REE | D147 | ||
Dolomite | Oxide ores ,Fluorite, Tungsten | D100X, D104, D107,D108,D121 | ||
Silicate gangue | talC | Cu,Ni,Cu-Mo | D106, D108 D181P+D120 D168,D168A | |
serpentine | Cu,Ni, Cu-Mo | |||
Clay | Clay | Cu Au | D119,D120,SA | |
Carbonaceous ores/graphitic or amorphous carbon | carbon | Base metal sulfide ores | D160,D161,D188,D189 |
| Flotation Depressants | |||
| Type | Trade Name | Components | Application |
|
Organic depressants Florrea D100 series | Florrea D100 | New environmently friendly depressants for copper sulfides ores which can repalce NaSH ( sodium hydrosulfides ) and sodium thioglycolate and Nokes reagents | |
| Florrea D101 | Sodium thioglycolate 20% | Depressant for copper sulfies ores flotation | |
| Florrea D102 | Sodium thioglycolate 40% | ||
| Florrea D106 | CMC (Carboxymethyl cellulose) Modified CMC |
Used in the depression of magnesium silicates such as talc and pyroxene. Especially useful in the flotation of PGM and Ni ores | |
| Florrea D107 | |||
| Florrea D108 | guar gum | depressant | |
| Florrea D109 | zinc sulphate |
Used alone, or in combination with cyanide, for depression of Zn minerals in the flotation of Pb/Zn, Cu/Zn, and Cu/Pb/Zn ores; depression on talc in by-product molybdenum circuit | |
| Florrea D110 | sodium cyanide |
Depression of iron sulfide minerals such as pyrite, pyrrhotite and arsenopyrite. Depression of Zn minerals during Pb flotation from Pb/Zn ores | |
| Florrea D111 | sodium ferrocyanide |
Depression of iron sulfide minerals such as pyrite, pyrrhotite and arsenopyrite. Depression of Zn minerals during Pb flotation from Pb/Zn ores Depressant for Cu and Fe sulfide in Cu/Mo separation.Strong copper and iron sulfidedepressants in the pH range 6.5–8.5. They are preferably used in separating copper from copper–lead concentrates when secondary copper minerals are present and for depression of iron sulfides during nickel– cobalt separation | |
| Florrea D112 | Sodium sulphite |
used as a flotation depressant to depress Sphalerite and pyrite in the flotation of Pb/Zn, Cu/Zn, and Cu/Pb/Zn ores. | |
| Florrea D113 | sodium bisulphite | ||
| Florrea D114 | sodium etabisulphite | can be used in conjunction with either lime or Na2S for depression of pyrite during flotation of copper-zinc ores. It does not depress Chalcopyrite .On the contrary, it can activate Chalcopyrite.It can be used at lower acid circuit. As for those Sphalerite(zinc minerals) which is strongly activated by copper ion, it is recommended to use sodium sulphite in combination with zinc sulphate, sodium sulphide or sodium cyanide to enforce the depressing performance. | |
| Florrea D115 | SODIUM THIOSULPHATE | depressant | |
| Florrea D116 | AMMONIUM THIOSULPHATE | ||
| Florrea D117 | sodium hydrosulphide 70% flake | Used for the depression of Cu and Fe sulfide & Hydrosulfide minerals in Cu/Mo separation. | |
| Florrea D118 | sodium sulphide | ||
| Florrea D119 | sodium silicate | widely used in mineral flotation as depressant, dispersant and as controlling agent of some soluble ions | |
| Florrea D120 | Sodium Hexametaphosphate | depressant for gaunge ,used with Florrea depressant D100 can increase concentrate grade . | |
| Florrea D121 | Replacement for Sodium dichromates | Used for the depression of Pb minerals during Cu/Pb separation. | |
| Florrea D122 | Replacement for Potassium dichromates | ||
| Florrea D123 | Nokes Reagent(25% Solution) | Used for the depression of Cu and Fe sulfide minerals in Cu/Mo separation | |
| Florrea D124 | Nokes Reagent (20% Solution) | ||
| Florrea D125 | DETA(Diethylene triamine) | Used as a depressant for pyrrhotite and arsenides in Cu/Ni mineral flotation | |
| Florrea D126 | Potassium Permanganates | useful in the separation of pyrite from arsenopyrite | |
| Florrea D127 | Ferro sulfate (FeSO4·7H2O) | depressant and co-depressant for(a) sphalerite together with cyanide (b) fine molybdenite with cyanide | |
| Florrea D128 | ferric chloride (FeCl3) | depressant for barite in barite–celestite separation. Depressant during niobium–zirconium separation. Ferric and ferrous compounds are not selective depressants and in many cases are detrimental for flotation of oxidic and industrial minerals as in the case of anionic flotation, fatty acid,iron complexes or oleate iron complexes | |
| Florrea D129 |
aluminum sulphate (Al2(SO4)3·12H2O) |
primarily used in non-metallic flotation and in by-product molybdenum circuits. In molybdenum circuits, alum is used for depression of talc at pH 7. Also it can be used for talc depression during the treatment of talcous nickel ores together with carboxyl methyl cellulose. Aluminum salts have a depressing effect oncalcite, dolomite and barite. It is used as co-depressant during fluoride flotation from the ores containing barite | |
| Florrea D130 | aluminum chloride | Similar to aluminum sulfate, aluminum chloride is used as a co-depressant for calcite, fluorite and dolomite | |
| Florrea D131 | Ammonium sulphate | depressant for sphalerite during flotation of complex copper–lead–zinc ore | |
| Florrea D132 | ammonium chlordie | depressant | |
| Florrea D133 | sodium floride | depressant used exclusively during beneficiation of non-sulfide minerals, as well as the rare-earth minerals as a depressant alone or in combination with other depressants. It is used together with starch as co-depressant for rutile and ilmenite during zirconium– titanium separation or during reverse silicate flotation from rutile and ilmenite with cationic collectors | |
| Florrea D134 | sodium fluorosilicate | rdepessant for silicates,specifically topaz, tourmaline and some aluminosilicates.used in the separation of rutile from zircon, pyrochlore from zircon, cassiterite and tantalite and during flotation of cassiterite for depression of topaz, tourmaline and aegirine | |
| Florrea D135 | potassium fluorosilicate | ||
| Florrea D136 | ammonium sulfide | effective depressant for bornite and covellite | |
| Florrea D147 | depressant | depressant for calcium carbonaceous | |
| Florrea D160 | Carbon Depressants | ||
| Florrea D161 | |||
| Florrea D163 | oxalic acid depressant for silicate | ||
| Florrea D165 | depressant for copper and pyrite | ||
| Florrea D167 | |||
| Florrea D168A | depressant for pyrite | ||
| Florrea D168B | |||
| Florrea D170 | depressant for SiO2 | ||
| Florrea D171 | depressant for pyrite | ||
| Florrea D180 | Depressants for Zinc Minerals, Pyrite , Arsenic , Copper sulfide mineral. Good Replacement for Cyanide depressants. | ||
| Florrea D181A | Depressants for MgO | ||
| Florrea D181B | |||
| Florrea D185 | Depressants for carbon and graphite | ||
| Florrea D188A | |||
| Florrea D188B | |||
| Florrea D189A | |||
| Florrea D189B | |||
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