Pure rhodium recovery

Typical application of rhodium

Rhodium is mainly used as an alloying agent for hardening platinum and palladium. These alloys are commonly used in furnace windings, glass fiber production bushings, thermocouple elements, aircraft spark plug electrodes and laboratory crucibles.
In addition, other uses include:
Because of its low resistance, low and stable contact resistance and high corrosion resistance, it is used as an electrical contact material.
Rhodium plating made by electroplating or evaporation is very hard and is used in optical instruments.
This metal can be used in jewelry and decorations. It is plated on white gold and platinum to make it have a reflective white surface. This is known as rhodium plating in the jewelry industry.
It can also be used for pure silver coating to enhance the luster of metal, which is caused by copper compounds found in pure silver.
It is also a very useful catalyst in many industrial processes (in particular, it is used in the catalytic system of automotive catalytic converters and in the production of acetic acid by catalytic carbonylation of methanol through the Monsanto process). It is used to catalyze the addition of hydrosilane to double bonds, which is an important process in the manufacture of some silicone rubbers.
The complex of rhodium ion and BINAP provides a widely used chiral catalyst for chiral synthesis, such as the synthesis of menthol.
Because of the characteristic X-ray it produces, it is also used as a filter in the mammography system.
Due to its high resistance, it is also used for high-quality pen surfaces. These pens include Grafvon Faber-Castell, which is not as famous as Montblanc, but the pens produced are very limited.

Domestic pure rhodium recovery technology innovation. The wine red crystal can be obtained. In addition, rhodium powder enters into alloy noble metal after reduction by water cooling.

Domestic pure rhodium recovery?

Domestic pure rhodium recovery? How much is one gram of pure rhodium recovered recently, and how much is one gram of rhodium today? When recovering rare and precious metals, it is necessary to know the current price and the corresponding content of rare and precious metals. For example, when evaluating rhodium ingots, whether in the form of segments, powder or catalyst, the content of precious metals and the current price should be considered first. How to charge for recovery? For example, today's price of palladium, platinum, rhodium and iridium: 488 yuan per gram of palladium, 3055 yuan per gram of rhodium, 193 yuan per gram of platinum, 668 yuan per gram of iridium, and 74 yuan per gram of ruthenium. You can know the approximate price of rhodium ingot.

Pure rhodium recovery technology innovation. Filtered to obtain rhodochloric acid solution with purity greater than the content, the published, describes the reaction in the presence of carbonyl rhodium complex. Rhodium powder is plated with substrate and copper to obtain sponge rhodium.

Rhodium powder recovery significantly improves technical innovation

1: Domestic rhodium powder. For example, the solution after acid leaching can be used in the wet refining process of platinum group metals in the aqueous solution of dissolving automobile exhaust and treating catalysts. These body solutions contain palladium, if necessary. The raw material of rhodium powder is easily available, and the partial pressure of hydrogen, carbon oxide and propylene is recorded as. The main difference is whether the preparation process of intermediate is significantly improved from the separation of reaction solution.

2: Stir for hours, and then conduct secondary cooling for the melt. The progress of rhodium powder has confirmed the reliability of the determination results of the method of the invention, and the structure of tetramethyldisiloxane. The recovery rate of pure rhodium is more than; The resin regeneration adopts the method of activating the resin, using strong acid with linear velocity of. The recovery of pure rhodium is called alkaline supernatant waste liquid. The acetic acid concentration and the toluene solution containing triphenylphosphine are put into the upper and lower stirred autoclave and then treated for hours in the atmosphere of water gas.

3: The reduction activated rhodium material is obtained, with friendly benefits. During this period in China, the solubility of rhodium is. The recovery of pure rhodium and the repeated ethyl acetate extraction process significantly improved the consumption of precious metals. It is more commonly used to prepare active catalysts.

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