Preparation method of carbonyl nickel, nickel powder and its usage

A technology of nickel source and product, applied in the field of producing nickel carbonyl

Active Publication Date: 2006-01-25
CVMR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is not difficult to understand that if nickel could be produced at atmospheric pressure, especially the production of active nickel for subsequent reaction with CO at atmospheric pressure would provide significant capital cost and production cost advantages

Method used

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  • Preparation method of carbonyl nickel, nickel powder and its usage
  • Preparation method of carbonyl nickel, nickel powder and its usage
  • Preparation method of carbonyl nickel, nickel powder and its usage

Examples

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Embodiment 1

[0046] Embodiment 1 (prior art)

[0047] NiCO 3 powder (200g) into the extraction reactor, and then use H 2 The gas stream was treated at 500°C for 7 hours at a flow rate of 300 mL / min for essentially complete reduction. Cool the produced nickel powder to 100°C, then replace H with carbon monoxide 2 atmosphere. The reactor was further cooled to 50° C. and bubbled with CO gas at a flow rate of 300 mL / min. The resulting Ni(CO) 4 Nickel (10 g, 10% yield) was recovered as nickel powder after 12 hours by passing through a pair of carbonyl decomposers according to the prior art.

Embodiment 2

[0048] Embodiment 2 (prior art)

[0049] Ni(OH) 2 powder (100g) into the extraction reactor, and then 2 The gas stream was treated at 500°C for 7 hours at a flow rate of 300 mL / min for essentially complete reduction. The resulting nickel powder was placed in H 2 Cool to 100°C in atmosphere, then replace H with carbon monoxide 2 atmosphere. The reactor was further cooled to 50° C. and bubbled with CO gas at a flow rate of 300 mL / min. The resulting Ni(CO) 4 The gas was passed to the carbonyl decomposer and nickel (6 g, 9.5% yield) was recovered as nickel powder after 12 hours.

Embodiment 3

[0051] 300.1 g of nickel carbonate / nickel chloride mixture (10:1 w / w) was put into the extraction reactor, and treated with hydrogen (2 L / min) at 450° C. for 6 hours. Subsequently, the hydrogen was replaced with argon, the reactor was cooled to 40 °C and the argon was replaced with carbon monoxide at a gas temperature of 80 °C and a flow rate of 4 L / min, resulting in the formation of nickel carbonyl, which was collected and subsequently decomposed into Ni and CO at 6 103 g of nickel powder was provided within 1 hour, corresponding to a yield of 70% of the nickel extraction yield.

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Abstract

A process for preparing Ni(CO)4 from CO and Ni source chosen from Ni, Ni compound and their mixture, which features that said Ni compound is not alone nickel chloride or the mixture of nickel chloride (50 W%) and nickel carbonate ore, includes such steps as treating said Ni source by H2 under existance of Cl anions to generate resultant Ni, reacting on CO to generate Ni(CO)4, and collecting Ni(CO)4.

Description

technical field [0001] The present invention relates to a method for producing nickel carbonyl, in particular a method for producing nickel powder for preparing said nickel carbonyl by reacting with carbon monoxide, and nickel powder prepared by said method. Background technique [0002] In the early 19th century, Mond first prepared nickel carbonyl Ni(CO) through the reaction of metallic nickel with carbon monoxide 4 . At present, one of the main industrial methods for preparing metallic nickel is to produce Ni(CO) 4 and subsequent thermal decomposition into Ni and CO. One known industrial process is carried out at about 180°C and a CO pressure of about 70 atmospheres. It is known that the CO pressure can be reduced when the reactant nickel is catalytically activated. [0003] have been found in mercury(1,2), H 2 Activation of the metal occurs in the presence of the S form of S (3, 4), hydrogen (5, 6), or carbon (7). It has been shown that Ni(CO)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G53/02B22F9/30A01M17/00
Inventor 卡姆兰・M.・霍赞德米特里・S.・捷列霍夫维克托・伊曼纽尔・南塔库玛谢尔吉・科夫通
Owner CVMR CORP
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