spent acid in mineral processing

spent acid in mineral processing

  • Sulfuric Acid Treatment De Dietrich Process Systems

    GENERAL. On the other hand in most chemical processes contamination and dilution of concentrated sulfuric acid occurs producing huge waste streams of contaminated spent sulfuric acid. An example is the production of Di nitro toluene where the waste acid of sulfuric acid is contaminated with nitric acid and partially nitrated toluene.

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  • Identification and Description of Mineral Processing

    Rhenium APC Dust/Sludge Mineral Processing Spent Barren Scrubber Liquor Mineral Processing Spent Rhenium Raffinate Mineral Processing Roaster Dust Mineral Processing Spent Ion Exchange/SX Solutions Mineral Processing Spent Salt Solutions Mineral Processing Slag Mineral Processing Scandium Crud from the bottom of the solvent extraction unit

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  • Silver processing Britannica

    Silver processing, preparation of the ore for use in various products. Silver has long been valued for its white metallic lustre, its ability to be readily worked, and its resistance to the corrosive effects of moisture and oxygen. The lustre of the pure metal is due to its electron configuration,

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  • Jadar Project fact sheet 2018 riotinto

    boric acid using new, innovative technology A global team of Rio Tinto experts have developed new processing technology to extract boric acid and lithium carbonate from jadarite ore. A small scale test plant called a pilot plant has been built to test the new

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  • What mining industries use sulphuric acid? Quora

    Dec 31, 20150183;32;No mining industry uses sulfuric acid. Some of the milling processes to recover the mineral from the ore may use a little, but since the most frequent and most difficult problem with extraction is finding the best and cheapest way to reduce a

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  • International Journal of Mineral Processing Elsevier

    The International Journal of Mineral Processing covers aspects of the processing of mineral resources such as Metallic and non metallic ores, coals, and secondary resources. Topics dealt with include Geometallurgy, comminution, sizing, classification (in air and water), gravity concentration, flotation, electric and magnetic separation, thickening, filtering, drying, and (bio)hydrometallurgy (when

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  • EPA Enforcement Alert Hardous Waste Management at

    The 20 exempt mineral processing wastes are 1 . Slag from primary copper processing; 2. Slag from primary lead processing; 3. Red and brown muds from bauxite refining; 4. Phosphogypsum from phosphoric acid production; 5. Slag from elemental phosphorus production; 6.

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  • Lignosulfonates an overview ScienceDirect Topics

    Approximately a quarter of the total solids in spent liquor is sugars, which can cause a strong retarding effect. Therefore, the removal of some or all of the sugars is usually desirable. Different methods such as precipitation, alkaline heat treatment or ultrafiltration are used to

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  • Mineral Processing amp; Metallurgy

    Mineral Processing Flowsheets. The Mineral Processing Flowsheets shown on the following pages are based on actual data obtained from successful operating plants. Metallurgical data are shown in these flowsheets which incorporate Crushers, Grinding Mills, Flotation Machines, Unit Flotation Cells, and Selective Mineral Jigs as well as other standard milling equipment.

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  • Hydrometallurgical processing and recovery of molybdenum

    Sep 01, 20060183;32;Hydrometallurgical processing of spent hydrodesulphurisation (HDS) catalyst for the recovery of molybdenum using sodium carbonate and hydrogen peroxide mixtures was investigated.

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  • Standard Operating Procedure University of California

    Sulfuric acid (alternative spelling sulphuric acid) is a highly corrosive mineral acid. The historical name of this acid is oil of vitriol. Possessing different chemical properties, the sulfuric acid has a wide range of applications including domestic acidic drain cleaner, electrolyte in lead acid

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  • Introduction to Mineral Processing cpchem

    In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer. Sulfide and non sulfide minerals as well as native metals are recovered by froth flotation.

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  • Brewers' spent grain a review with an emphasis on food

    In addition, BSG also contains a variety of minerals, among which silicon, phosphorus, calcium and magnesium are the most abundant 8, 9, 18. The amino acid and mineral content of BSG derived from 100% barley malt is outlined in Table 2 9.

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  • Spent Acid Recovery Process and Plant Design DuPont

    MECS 174; Spent Acid Recovery Process. Regenerating spent sulfuric acid is a challenging operation, but our processes and designs deliver operating performance, efficiency, cost effectiveness, and emissions control that refiners and chemical processors have relied upon for more than 65 years.

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  • Regulatory Exclusions and Alternative Standards for the

    ManagementIntroductionPurposeScopeCollectionsReuse, recycling, and reclamation should be viewed as ways of managing hazardous wastes which, if properly conducted, can avoid environmental hazards, protect scarce natural resources, and reduce the nations reliance on raw materials and energy. Promoting reuse and recovery is certainly one of the goals of RCRA; however, this goal does not take precedence over ensuring the proper management of hazardous waste.Get Price
  • OVERVIEW OF PGM PROCESSING

    prices, mineral resource exploration and development capabilities, recovery rates and other operational capabilities, the availability of mining and processing equipment, the ability to produce and transport products profitably, the impact of foreign currency exchange rates on market prices and operating costs, the availability of sufficient

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  • Spent sulphuric acid regeneration (SAR) process

    In a few cases, this spent acid may be safely disposed or used in other processes, but usually it must be regenerated back to relatively pure and concentrated acid for reuse in the main process, over and over.

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  • Characterisation and treatment of spent deposited sludge

    ABSTRACTThe characterisation of spent transformer oil to determine its fitness for re refining as well as the recovery of metals by hydrometallurgical treatment in chloride medium has been investigated. The leaching experiments on the spent material showed that its dissolution increases with leachant concentration performed at 75176;C. Leaching studies showed that at optimal conditions, the

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  • Spent sulphuric acid regeneration (SAR) process

    Solubility in weak sulphuric acid is typical for most spent acid from refinery and nitration processes. If the dust and ash solids are not soluble in weak acid, electrostatic mist precipitators are required. The SO2 bearing gas is then dried by contact with 93 to 96% H2SO4 in a packed bed acid tower or drying tower.

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  • Nitric Acid The Chemical Company

    TCCs nitric acid (HNO 3), is a highly corrosive and toxic strong mineral acid that is normally colorless but tends to acquire a yellow cast to the accumulation of oxides of nitrogen if longstored. Ordinary nitric acid has a concentration of 68%.

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  • Pg 1 Adobe

    Spent materials generated from the primary mineral processing industry Primary mineral processing industry 40 CFR 261.4(a)(17) Petrochemical recovered oil (oil reclaimed from secondary materials from normal organic chemical manufacturing opera tions or processes) from an associated organic chemical manufacturing facility Organic chemical

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  • Heap leaching

    Nickel ores. The method is an acid heap leaching method like that of the copper method in that it utilises sulfuric acid instead of cyanide solution to dissolve the target minerals from crushed ore. The amount of sulfuric acid required is much higher than for copper ores (as high as 1,000 kg of acid

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  • Hydrometallurgical processing and recovery of molybdenum

    Abstract. Hydrometallurgical processing of spent hydrodesulphurisation (HDS) catalyst for the recovery of molybdenum using sodium carbonate and hydrogen peroxide mixtures was investigated. The results indicated that the recovery of molybdenum was largely dependent on the concentrations of Na 2 CO 3 and H 2 O 2 in the reaction medium,

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  • O.J.S.C. NIUIF

    The basis research activities of the Institute are as follows research in the field of phosphate rock processing, creation of scientific fundamentals of technologies and equipment arrangement for obtaining a wide range of mineral fertilizers, technical salts, sulphuric acid and phosphoric acid;

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  • ACTION Final DATE 10/07/2015 1216 PM

    Administrative Code) generated within the primary mineral processing industry from which minerals, acids, cyanide, water, or other values are recovered by mineral processing or by beneficiation, provided that all of the following (a) The spent material is legitimately recycled to recover minerals, acids, cyanide, water or other values;.

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  • Sulfuric Acid Treatment De Dietrich Process Systems

    GENERAL. On the other hand in most chemical processes contamination and dilution of concentrated sulfuric acid occurs producing huge waste streams of contaminated spent sulfuric acid. An example is the production of Di nitro toluene where the waste acid of sulfuric acid is contaminated with nitric acid and partially nitrated toluene.

    Get Price
  • Hydrometallurgical processing and recovery of molybdenum

    3.3. Processing of leach liquor. Leach liquor can be processed in different ways to recover molybdenum as calcium molybdate, ammonium molybdate, molybdic acid or molybdenum oxide (Juneja et al., 1996, Kar et al., 2004, Kar et al., 2005).In the present study, recovery of molybdenum as MoO 3 was tested using the reported precipitation conditions of ammonium molybdate method (Kar et al., 2004).

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  • Hydrometallurgical processing and recovery of DeepDyve

    Sep 01, 20060183;32;Hydrometallurgical processing of spent hydrodesulphurisation (HDS) catalyst for the recovery of molybdenum using sodium carbonate and hydrogen peroxide mixtures was investigated.

    Get Price
  • Characterisation and treatment of spent deposited sludge

    ABSTRACTThe characterisation of spent transformer oil to determine its fitness for re refining as well as the recovery of metals by hydrometallurgical treatment in chloride medium has been investigated. The leaching experiments on the spent material showed that its dissolution increases with leachant concentration performed at 75176;C. Leaching studies showed that at optimal conditions, the

    Get Price
  • Current and Future Processing of Whey Ingredients

    The problem Acid whey is tough to process because of the mineral and acid content but has protein for value. Greek yogurt whey has even more acid and minerals and virtually no protein.

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  • Cobalt processing Britannica

    Mineral processing. The most important sulfide sources, the copper cobalt ores of Congo (Kinshasa) and Zambia, are processed in the conventional manner to produce a copper cobalt concentrate. This is then treated by flotation to separate a cobalt rich concentrate for treatment in the cobalt circuit.

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  • Standard Operating Procedure sites.chemengr.ucsb.edu

    Sulfuric acid, also spelled sulphuric acid, is a highly corrosive mineral acid. Its corrosiveness on metals, stones, skin, eyes and flesh and other materials can be mainly ascribed to its strong acidic nature and if concentrated strong dehydrating property and strong oxidizing property. The historical name of this acid

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  • Department of Toxic Substances Control Waste Classification

    Secondary materials from mineral processing; Petrochemical recovered oil, spent caustic solutions from petroleum refining used to produce cresylic or naphthenic acid . Activity 2b Federal Waste Exclusions

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  • Mineral Processing Wastes Material Description User

    Many mineral processing waste materials have limited potential for use as aggregates because of their fineness, high impurity content, trace metal leachability, propensity for acid generation, and/or remote location (i.e., away from aggregate markets).

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  • Recover Metal from Acid Leach Processing of Arsenic Rich

    Bismuth extraction increased with acid availability, as shown in Figure 4, where bismuth extraction is plotted against acid to dust ratio. Extractions ranged from 3 to 34 pct. Other leach parameters had little effect on bismuth extraction. Iron Acid is consumed in leaching iron which is of no commercial value in this process. The extracted iron would remain with the leach liquor and require subsequent processing

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  • US20140356483A1 Use of spent bleaching earth from edible

    Spent bleaching earth from edible oil processing can be used in the formulation of salt and mineral lick blocks and pellets for livestock to enhance the health and nutritional value of the feed supplements. Because of the ignition hazard inherent with spent bleaching earth, landfill has been and continues to be the dominant disposal method.

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  • Introduction to spray roasting process for SpringerLink

    The development, current state and economics of the spray roaster process for the regeneration of spent hydrochloric acid are described. Primarily used in conjunction with steel pickling, the system has applications in mineral processing where hydrochloric acid can be used either for the leaching of gangue oxides or for the extraction of valuable materials from suitable feedstocks.

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  • Standard Operating Procedure University of California

    Sulfuric acid (alternative spelling sulphuric acid) is a highly corrosive mineral acid. The historical name of this acid is oil of vitriol. Possessing different chemical properties, the sulfuric acid has a wide range of applications including domestic acidic drain cleaner, electrolyte in

    Get Price