Equipment and method for preparing carbonyl nickel spheres

A technology of nickel carbonyl balls and nickel carbonyl, which is applied in the direction of nickel carbonyl, can solve the problems of difficult continuous production, affecting product quality, and unsustainable material balance, and achieves the effects of short process, automatic control, and low energy consumption

Active Publication Date: 2013-02-13
JINCHUAN GROUP LIMITED
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a problem that there is no feeding port in the production process, which makes the material balance unsustainable. In addition, nickel carbonyl enters the decomposer, part of it flows upwards, and part of it flows downwards and then enters the feeder and bucket elevator, and then decomposes in the equipment , forming nickel skin or grain bonding on the surface of the equipment, which affects the quality of the product and makes it difficult to continue production

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  • Equipment and method for preparing carbonyl nickel spheres

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preparation example Construction

[0035] see figure 1 To illustrate the equipment for preparing nickel carbonyl balls of the present invention. The equipment includes a nickel carbonyl grain feeding device 1, a carbon monoxide and nickel carbonyl mixed gas feeding device 2, a moving bed reactor 3, a material controller 4, a screening machine 5, a storage tank 6, an elevator 7 and a circulation device 8. Wherein, the outlet of the nickel carbonyl grain feeding device 1 is connected to the top inlet of the moving bed reactor 3, the inlet of the feeding device 1 is connected to the top outlet of the elevator 7, and the inlet of the feeding device 1 is also connected to the inlet of the screening machine 7 . The carbon monoxide and nickel carbonyl mixed gas feeding device 2 is connected to the lower inlet of the moving bed reactor 3; the material controller 4 is installed below the moving bed reactor 3, and its outlet is connected to the bottom inlet of the elevator 7; the circulation device 8 will feed The bott...

Embodiment 1

[0058] The temperature of the circulating nickel grains is heated to 300°C, and the pumping capacity of the circulating fan is 80Nm 3 / h, the flow rate of grains is 250kg / min, and the flow rate of nickel carbonyl entering the mixing tank is 1Nm 3 / h, CO flow rate is 200Nm 3 / h, the pressure in the reactor is maintained at 100Kpa, and the temperature of the reactor is 150°C, it takes 120 days for the grain to grow from about 10μm to 10mm, and the purity of the nickel ball reaches more than 99.99%, and the impurity cobalt is not high 0.0005%, lead not higher than 0.0001%, copper not higher than 0.001%, zinc not higher than 0.0005%.

Embodiment 2

[0060] The temperature of the circulating nickel grains is heated to 150°C, and the pumping capacity of the circulating fan is 50Nm 3 / h, the flow rate of the crystal grains is 150kg / min, and the flow rate of nickel carbonyl entering the mixing tank is 1Nm 3 / h, CO flow rate is 200Nm 3 / h, the pressure in the reactor is maintained at 100Kpa, and the temperature of the reactor is 150°C, it takes 135 days for the grain to grow from about 10μm to 10mm, and the purity of the nickel ball reaches more than 99.99%, and the impurity cobalt is not high 0.0005%, lead not higher than 0.0001%, copper not higher than 0.001%, zinc not higher than 0.0005%.

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Abstract

The invention discloses equipment for preparing carbonyl nickel spheres. The equipment comprises a carbonyl grain feeding device (1), a carbon monoxide and carbonyl nickel gas mixture feeding device (2), a moving bed reactor (3), a feeding controller (4), a sieving machine (5), a storage tank (6), a hoisting machine (7), and a circulating device (8). The invention also discloses a method for using the equipment to prepare the carbonyl nickel spheres. The method is a preparation process, which comprises the following steps of: diluting carbonyl nickel steam with heated carbon monoxide gas; instantaneously decomposing the carbonyl nickel on the surfaces of carbonyl nickel grains in the moving bed reactor (3) filled with flowing hot carbonyl nickel grains; and rapidly reducing the surface energy of the carbonyl nickel spheres. By the equipment and the method, the carbonyl nickel spheres with the chemical purity not less than 99.5 percent can be obtained by controlling the technical conditions, and a technical foundation is laid for the large-scale technology production of carbonyl nickel spheres.

Description

technical field [0001] The invention relates to a device and a method for preparing nickel carbonyl spheres. Background technique [0002] Carbonyl nickel ball is a spherical particle product with high purity and low metal impurity content. It contains cobalt, copper, lead and zinc by an order of magnitude lower than the products produced by other nickel refining methods. The cobalt content of carbonyl nickel ball is electrolytic 1 / 8 of nickel, the copper content is 1 / 50 of electrolytic nickel, and the amount of lead and zinc is 1 / 10 of electrolytic nickel. Carbonyl nickel balls can be produced according to user requirements. Nickel carbonyl balls are mainly used in electroplating, ferrous metallurgy and aviation industry. In the existing production technology of nickel carbonyl balls, nickel carbonyl is mixed with CO and enters the decomposer, where it thermally decomposes with the heated grain surface in the decomposer, grows continuously, and enters the feeding device a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G53/02
Inventor 王芳镇李朝平刘军位江龙王大窝寇宗质
Owner JINCHUAN GROUP LIMITED
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