how to recover nickel from nickel catalyst

Indian Patents. 251670:"A PROCESS FOR RECOVERY OF …

85) the leaching of nickel from a alumina based spent catalyst using very high concentration of sulphuric acid (up to 50%) to recover nickel as sulphate crystal suggested neutalisation method to …

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US7470647B2

A nickel compound, such as NiCl 2 or Ni(NO 3 ) is dissolved in water and suitably precipitated as nickel hydroxide. The precipitate is separated, dried and calcined to form the NiO catalyst precursor particles.

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Experimental Study on Factors Affecting the Recovery of Nickel from Spent Catalyst

½ºÃ»³ Ú ÁÁó Ú ¡ Research Article pen Access hali an thraa, £½Å²³À ³Â¯ºº ·¼ ¢ Research Article pen Access Journal of Powder Metallurgy & Mining J o u r n a l o f P o w d er M t a l u r g y & M i n i n g ISSN: 2168-9806 Experimental Study on Factors Affecting the Recovery of Nickel from Spent Catalyst Khalid MM and Athraa BA* Chemical Engineering Department, Collage of ...

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Recover Precious Metals From Spent Catalysts

 · The catalyst user''s cradle-to-grave liability extends to ultimate disposal, even if that is handled by a subcontractor with which the user has had no direct dealings. Catalyst users should request detailed documentation on environmental compliance from the refiner and …

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Recovery of Nickel from Spent Ni/Al2O3 Catalysts using Acid …

The nickel was recovered as NiSO4 with 99% yield when the catalyst, having a particle size of 0.09 mm, was dissolved in an 80% sulfuric acid solution for 50 min in at 70ºC. It was also shown that the high recovery of 99% nickel as nickel sulphate was achieved. Nickel was to be directly recovered as a sulfate salt by direct crystallization method. The recovery was done using sulphuric acid leaching process for the recovery of nickel as a sulphate from a spent catalyst in the steam reforming industry8,9,10-12. A study was carried out for the recovery of nickel from a spent catalyst used for the steam conversion of methane6. They found that the leaching of nickel …

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US6733564B1

The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of an additive.

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Increasing Recovery of Nickel From Secondary Materials | …

In the present study, a simple recovery process for nickel and oil from spent hydrogenation catalyst using hydrochloric acid leaching was described. Simultaneous recovery of nickel and oil varies...

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Recovery of nickel from wastes

The method of claim 11 wherein the catalyst is a spent nickel catalyst recovered from the hydrogenation of oils and has a fuel value of up to 11,000 BTU/lb. 14. A method of improving the recovery of ferronickel from ores containing nickel and iron utilizing spent ...

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Sustainable recovery of nickel from spent …

 · The studied process is based on a closed-loop concept to recover nickel from a spent catalyst with ∼42% nickel concentration. The catalytic waste is roasted by an external process to remove residual fats, hydrocarbon species, and some impurities.

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Method of removing catalyst

 · Nickel-boron alloy, when activated with caustic, may even be a more reactive hydrogenation catalyst than the nickel-aluminum catalyst. Nickel carbonate and nickel hydroxide are used to make precipitated catalysts. Supported catalysts of nickel on alumina or

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Porous nickel as a liquid-phase hydrogenation catalyst …

 · The catalyst prepared is studied by physicochemical, adsorption, and catalytic methods. Its absorption, catalytic properties, phase composition, and the structure of the active surface are shown to be similar to those of Raney nickel.

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Recovery of nickel oxide from spent catalyst

(PDF) Recovery of Nickel & Oil from hydrogenation catalyst

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Recovery of nickel from spent catalyst from palm oil …

In this study, recovery of nickel from spent catalyst from palm oil hydrogenation process is carried out via extractive leaching process using sulfuric and hydrochloric acids. The effects of acid concentration, solid-liquid ratio, temperature and digestion time on the ...

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Recovery of Nickel from Spent Ni/Al2O3 Catalysts using Acid …

Treatment of Spent Nickel Catalyst 2 4 4 2 Recovery of metals and other components from the spent catalysts is possible, and the technology for metals reclamation is well established. For catalysts containing Mo, Ni, Co, V and Al 2 O 3 metals are influenced ...

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cobalt production processcobalt recover from nickel ore

Pre-Reducing Process Kinetics to Recover Metals from Nickel Leach The main problem of the separation process from nickel mining using the ion for metals recovery such as nickel copper and cobalt from these ores is the high At pH 2.50 and 3.00 in …

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Nickel Catalyst Export Data to Iran

support catalyst with nickel/nickel compunds-magnesia based semi active catalyst(30x28x11) mm 57600 KGS 13.87 798718.84 bandar khomeini iran 24-Jun-2016 nhava sheva sea 38151100 reformax 100 rs 1 ab 4.7x4.7 support catalysts with nickel

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how to recover nickel from nickel catalyst

how to recover nickel from nickel catalyst Why Hydrogenated Oils Should be Avoided at All Costs ..., Why Hydrogenated Oils Should be Avoided at All Costs. Tuesday, November 04, 2008 by: Richard Stossel Tags: hydrogenated oils, health news, Natural Your ...

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Recovery of nickel from spent catalysts using …

 · Read "Recovery of nickel from spent catalysts using ultrasonication‐assisted leaching, Journal of Chemical Technology & Biotechnology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your

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How do we explain the recovery of nickel from spent …

 · By definition, catalysts assist or speed chemical reactions, but do not themselves get consumed. Therefore nickel used as a catalyst would be expected to remain behind. A spent catalyst would therefore be one that is consumed in some other way tha...

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(PDF) Experimental Study on Factors Affecting the …

Sahu et al. invented a process for nickel and alumina recovery by using 3 vol.% of sulfuric acid with a small amounts of a persulphate salt additives (such as potassium, sodium and ammonium). It...

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US1226945A

nickel making carbonate nickel catalyst precipitated Prior art date 1912-02-23 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status ...

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Spent Nickel Catalyst Importers & Spent Nickel Catalyst …

Spent Nickel Catalyst Importers - Instantly Connect with Verified Spent Nickel Catalyst Buyers & Spent Nickel Catalyst Importers from China, India, South Korea at TradeKey

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WO2003080878A1

The invention is useful for recovery of both nickel and sources of nickel and therefore important from the view of environmental protection, resource recycling and conservation. The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of a persulphate based additive.

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Injection technology to recover nickel and cobalt from …

 · @article{osti_447177, title = {Injection technology to recover nickel and cobalt from spent catalysts}, author = {Thapliyal, P and Zhao, Y F and Irons, G A}, abstractNote = {The petroleum refining industry generates over a million tons of spent catalyst per year, containing valuable metals. ...

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Nickel catalyst

A formed nickel catalyst useful in fixed bed hydrogenation of fatty materials is described. The catalyst comprises from about 10% to about 50% by weight of nickel and from about 3% to about 30% by weight of at least one clay mineral binder. The catalyst may also ...

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Recovery of Ni Metal from Spent Catalyst with Emulsion …

In this study was conducted to recover nickel metal from spent nickel catalyst resulting from hydrotreating process in petroleum industry. The nickel extraction study with the emulsion liquid membrane using Cyanex 272 as an extractant to extract and separate nickel …

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(PDF) Experimental Study on Factors Affecting the …

The results obtained show that recovery of about 94% of nickel from spent catalyst was accomplished under the following conditions: temperature 80°C, pressure 1 bar, average particle size 200 µm ...

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Recovery of nickel from spent catalyst from palm oil …

 · Ivascanu et al. reported 99% nickel sulfate recovery from spent catalyst via dissolution of the catalyst in sulfuric acid solution (80%) for 50 min at 70 °C. Loboiko et al. reported that the recovery of nickel was increased by extractive leaching at 60–70% nitric acid concentration at 120 °C for 2–3 h.

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Recovery of Nickel and Oil from Spent Nickel Hydrogenation …

nickel from a spent nickel catalyst by leaching with sulphuric acid and they recovered 99% of the nickel as nickel sulfate under the following conditions: particle size: 0.09mm, acid

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Nickel recovery from spent nickel catalyst | Request PDF

Since spent nickel catalysts are very rich in nickel, many attempts have been made to recover nickel from spent catalyst [1, 2]. Acid digestion method is commonly practiced for the above purpose....

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Locating and Estimating Sources of Nickel

EPA-450/4-84-007f March 1984 LOCATING AND ESTIMATING AIR EMISSIONS FROM SOURCES OF NICKEL U.S. ENVIRONMENTAL PROTECTION AGENCY Office of Air and Radiation Office of Air Quality Planning and Standards Research Triangle Park, North

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