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Oct 01, 2003· Sodium hydrosulphide is the single sulphidising agent employed in the Congolese industry. Its consumption makes up approximately half of the total cost of flotation reagents. An improved flotation method, which uses inert gas instead of air as flotation gas, has been investigated in order to reduce its consumption ( Kongolo et al., 1995 ).
Sodium sulfanide Sodium hydrosulfide 16721-80-5 240-778-0 40 to 49 Di-sodium sulphide Sodium sulfide 1313-82-2 215-211-5 <1.0, Typical Sodium carbonate Sodium carbonate 497-19-8 207-838-8 <3.0, Typical Water Water 7732-18-5 231-791-2 Remaining % Section 4: FIRST AID MEASURES 4.1 Symptoms/Effects:
Effect of sodium hydrosulphide The results shown in figure 2 were achieved witll a dosage of 400 g/t PNBX, 150 g/t of tlle mixture, 250 g/t Na 2Si03, 30 g/t Senfroth G41 and 400 g/t Na Si03. Best results were recorded at 4000 g/t NaHS: 94.8 % Cu and 90.1 % Co were recovered in a concentrate assaying 17.5 % and 1.5 % respectively.
Consequently, SO2 has been generated through the intermittent addition of sodium metabisulphite (SMBS), resulting in an unstable leaching environment, and in poor cobalt recoveries. The process is being rectified through the procurement of a customised SMBS addition plant, capable of accurately dosing the required amount of SMBS, which is
Sodium hydrosulphide is the single sulphidising agent employed in the Congolese industry. Its consumption Research Centre, Likasi, D.R. Congo, C/o Geecamines-Brussels, Bou-
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SODIUM HYDROSULPHIDE 30% W/V Extra Pure Sodium hydrogen sulphide. Article No. 5896D. Grade Extra Pure. Purity CAS No. 16721-80-5. Molecular Formula NaSH. Molecular Weight 56.08. H.S. Code 3822.0090. Shelf Life
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Sodium Hydrosulphide DBS Chemicals Masjid Bunder West, Mumbai No. 401, 4th Floor, Goradia House 100/104, Kazi Sayed Street, Masjid Bunder West, Masjid Bunder West, Mumbai - 400003, Dist. Mumbai, Maharashtra
and tests of fatty acid collectors Rinkalore, liquid sodium hydrosulphide 2006. - Bridge Port at Richard Bay in RSA to inspect the reception of the company pro-duct 2006. - Mintek RSA, Weir Minerals Africa, Endress+H and Rockwell Automation to discuss the requirement of Mintek process control soft-wares MillStar and FloatStar instal-
Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo.From laboratory investigations,
CONCLUSIONS Sodium sulphide is an activator in the flotation of willemite and hemimorphite with amines Due to chemical and structural differences between the two minerals its effect on willemite is stronger than on hemimorphite The sodium hydrosulphide ion HS is the predominant species in the pH range of sulphidization and flotation 10. Online Chat
Lime, sodium hydroxide, sodium carbonate, sulphuric acid, etc. are used as pH modifiers. Copper flotation is usually carried out in alkaline medium. Lime, being very cheap, is widely used to regulate/raise pulp alkalinity. It prevents the adverse effect of soluble salts on …
Besides, in Katanga, Democratic Republic of the Congo, about 77% of the copper and 75% of the cobalt were recovered by using sodium hydrosulphide with a concentration ratio of 3.0 .  have
under # 4303 at the Gecamines Research Centre in Likasi, copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in …
Sodium Hydrosulfide Solution NaHS, sodium hydrogen sulfide, sodium bisulfide, sodium mercaptan CHEMTREC® (800) 424-9300 CCN 201319 SAFETY DATA SHEET Product name Synonyms Emergency telephone number Section 1. Identification::: Manufacturer :HollyFrontier Refining & Marketing LLC 2828 North Harwood Suite 1300 Dallas, Texas 75201 USA
Sulphidising flotation of oxide copper–cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo.From laboratory investigations
R.B. Chavan, in Handbook of Textile and Industrial Dyeing, 2011 16.5.1 Vat dyes. Vat dyes are applied by using sodium hydrosulphite (sodium dithionate) as reducing agent and sodium hydroxide as an alkali. Some by-products of sodium hydrosulphite are acidic in nature, necessitating overdosing of sodium hydroxide over stoichiometric requirement. A few of the by-products formed are sulphur