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Method and device for reactivating inactivated nickel for carbonyl nickel production

A carbonyl nickel and reactivation technology, applied in the direction of carbonyl nickel, carbonyl iron, etc., can solve the problems of not providing an easy and convenient reactivation method, easy deactivation, etc.

Active Publication Date: 2007-06-27
CVMR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] One drawback of activated nickel is that it is prone to deactivation in the presence of air and moisture, so it should be used in the preparation of nickel carbonyl as soon as it is available
[0009] Although the aforementioned prior art nickel activation methods can be used, i.e. gaseous HCl, H 2 S or H 2 / Cl - , but these methods also do not provide an easy and convenient reactivation method

Method used

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  • Method and device for reactivating inactivated nickel for carbonyl nickel production

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Embodiment Construction

[0049] Referring to FIG. 1, there is shown a closed loop apparatus, shown generally at 10, comprising a reactor 12 connected by conduits 16 and 18 to a decomposition chamber 14.

[0050] The reactor 12 has an inlet conduit 20 through which hydrogen and carbon monoxide are alternately fed into the reactor 12 as required. As will be described hereinafter, conduit 18 has connections to a source of hydrogen 22 and an initial source of carbon monoxide 24 and leads to inlet conduit 20 via conduits 26, 28, respectively, as required. Conduit 18 has a selector valve 30 and an initial source valve 32 for controlling the passage of carbon monoxide from chamber 14 or initial source 24 to inlet conduit 20 as desired. Hydrogen is passed through line 18 to inlet line 20 since the initial activation reaction is controlled by selector valve 34 .

[0051] Reactor 12 has an outlet conduit 36 ​​through which initially the spent hydrogen gas is discharged to a portion of conduit 16 or the spent c...

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Abstract

The present invention is process and apparatus for preparing deposited metal nickel product with deactivated and pre-activated metal nickel source. The process includes hydrogen treating the nickel source with hydrogen to re-activate nickel source at the nickel activating temperature of 150-350 deg.c, preferably 150deg.c; treating the re-activated nickel with carbonylated CO to produce gaseous mixture including carbonyl nickel and CO; collecting the mixture including carbonyl nickel; decomposing the carbonyl nickel to produce nickel product and CO mixture; and circulating the CO mixture for reuse. The said process can activate deactivated nickel source effectively without need of hydrogen sulfide or chlorine anion.

Description

technical field [0001] The present invention relates to a method of reactivating inactivated metallic nickel during the production of nickel carbonyl and subsequent deposition of metallic nickel product from the nickel carbonyl; and apparatus for use in said method. The process optionally includes a similar process of reactivating the deactivated iron to produce a nickel-iron product. Background technique [0002] Nickel Carbonyl Ni(CO) 4 , was first made by Mond in the early 19th century by reacting metallic nickel with carbon monoxide. Today, a major industrial method for the preparation of metallic nickel is based on Ni(CO) 4 production and subsequent thermal decomposition into Ni and CO. One known commercial process operates at about 180°C and a CO pressure of about 70 atm. It is known that the CO pressure can be reduced when the reactant nickel is catalytically activated. [0003] It has been observed that in the presence of mercury, H 2 Activation of the metal in...

Claims

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Application Information

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IPC IPC(8): C01G53/02C01G49/16
Inventor 卡姆兰·M.·霍赞埃梅内吉尔达·D.·泽塔安德烈斯·M.·托里斯
Owner CVMR CORP
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