Device and method for preparing large-diameter palladium powder

A large particle size, palladium powder technology, applied in the field of large particle size palladium powder preparation technology, can solve the problems of flying loss, water absorption, oxidation, etc., and achieve the effect of high compaction density, not easy to oxidize, and high production efficiency

Active Publication Date: 2019-03-26
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since some enterprises that use palladium powder as raw material only redissolve the purchased palladium powder to produce other palladium products, the finer palladium powder not only increases the production cost of upstream enterprises, but also is prone to oxidation, water absorption and flying Loss and other issues

Method used

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  • Device and method for preparing large-diameter palladium powder
  • Device and method for preparing large-diameter palladium powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 As shown, a device for preparing palladium powder with a large particle size includes a palladium solution storage tank 1, a reducing agent storage tank 2, a palladium solution catheter 5, a negative pressure suction pipe 7, a reaction kettle 9, and a reaction kettle lifting mechanism 10 , fixed frame 13, reductant catheter 14, reactor 9 is installed on the suspension frame 12 by the reactor elevating mechanism 10, and the suspension frame 12 both sides are installed on the fixed frame 13 through the rotating shaft, and the reactor 9 top passes through The fastening mechanism is connected with the lid of the kettle, and the lid of the kettle is fixedly arranged on the top of the fixed frame 13. The top of the lid of the kettle is connected with the liquid outlet at the bottom of the palladium solution storage tank 1 through the palladium solution catheter 5, and the palladium solution catheter 5 is provided with Valve, the top of the kettle cover is connec...

Embodiment 2

[0041] like figure 2 Shown, a kind of use method of the device that prepares large particle diameter palladium powder, comprises the steps:

[0042] Step 1: in palladium solution storage tank 1, add by Pd (NH 3 ) 2 Cl 2 with NH 3 ·H 2 The palladium complex Pd(NH 3 ) 4 Cl 2 At the same time, deionized water was added to make the palladium concentration of the solution reach 100g / L. During the operation, the reactant was heated to 80 degrees Celsius through a flexible heating mantle to speed up the reaction process;

[0043] Step 2: Filling the reducing agent storage tank 2 with a liquid reducing agent;

[0044] Step 3: open the valve on the palladium solution catheter 5 to allow the palladium solution to flow into the reactor 9 through the palladium solution catheter 5, and close the valve when the palladium solution liquid level reaches 5L;

[0045] Step 4: Open the valve on the reducing agent catheter 14, and control the speed of adding the reducing agent into the r...

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Abstract

The invention discloses a device and method for preparing large-diameter palladium powder. A palladium solution storage tank, a reducing agent storage tank, a palladium solution guiding tube, a negative pressure liquid suction tube, a reaction kettle, a reaction kettle lifting mechanism, a fixing frame and a reducing agent liquid guiding tube are included; the reaction kettle is installed on a suspension frame through the reaction chamber lifting mechanism in a matched manner, the two sides of the suspension frame are mounted on the fixing frame through a rotating shaft in a matched manner, the upper part of the reaction kettle is connected with a kettle cover through a fastening mechanism, the kettle cover is fixedly arranged on the upper portion of the fixing frame, the top of the kettlecover is connected to a liquid outlet of the bottom of the palladium solution storage tank through the palladium solution guiding tube, a valve is arranged on the palladium solution guiding tube, thetop of the kettle cover is connected to a liquid outlet of the bottom of the reducing agent storage tank through a reducing agent liquid guiding tube, the reducing agent liquid guiding tube is provided with a valve, one end of the negative pressure liquid suction tube is connected with a suction device, the other end of the negative pressure liquid suction tube is provided with a negative pressure filter nozzle in a matched manner, and the negative pressure filter nozzle is arranged at the bottom of the inner wall of the reaction kettle.

Description

technical field [0001] The invention relates to the technical field of preparation technology of palladium powder with large particle diameter, in particular to a device and method for preparing palladium powder with large particle diameter. Background technique [0002] Palladium powder is the main raw material required for various palladium-related products, and is often used in electronics, chemical industry, automobile, military industry, aerospace and other fields. Palladium is a high-efficiency catalyst and is mostly used in the preparation of catalysts in the petroleum, chemical and automotive industries. [0003] There are many methods for preparing palladium powder, which are mainly divided into physical methods and chemical methods. Physical methods include high-energy mechanical ball milling, atomization, evaporation and condensation, and chemical methods mainly include chemical reduction and salt decomposition. Chemical reduction methods mainly include liquid-ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
CPCB22F9/24
Inventor 曹杰义张燕王立宋宏儒周文茜杨万虎
Owner JINCHUAN GROUP LIMITED
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