How to extract platinum from platinum water
Recently, platinum recovery and extraction technology has become a hot topic, especially in the context of precious metal price fluctuations. Many people are concerned about how to efficiently extract platinum from waste liquids or waste materials. This article will introduce the extraction method of platinum water in detail, with relevant data and steps.
1. What is platinum water?
Platinum water usually refers to a solution containing platinum metal ions, which may come from industrial waste, electronic waste or chemical experiment residues. The key to extracting platinum is to reduce the platinum ions in the solution to metallic platinum.
2. Common methods of platinum extraction
Here are several common platinum extraction methods:
| method | Principle | Applicable scenarios |
|---|---|---|
| chemical reduction method | Reduction of platinum ions to metal by reducing agents (such as formaldehyde, hydrazine hydrate) | Laboratory or small-scale extraction |
| electrolysis | Using electric current to deposit platinum ions on the electrode | Industrial grade extraction |
| Solvent extraction method | Selective separation of platinum ions using organic solvents | High purity platinum extraction |
3. Steps for Extracting Platinum by Chemical Reduction
The following are the detailed steps of the chemical reduction method:
| steps | Operating Instructions |
|---|---|
| 1. Solution pretreatment | Filter to remove impurities and adjust pH to neutral or slightly acidic |
| 2. Add reducing agent | Slowly add formaldehyde or hydrazine hydrate and stir until the reaction is complete |
| 3. Precipitation and separation | After standing, filter to collect black platinum metal powder. |
| 4. Purification | Wash with dilute hydrochloric acid or aqua regia to remove residual impurities |
4. Precautions
1.Safety first: Strong acids such as aqua regia are highly corrosive and protective equipment must be worn during operation.
2.Environmental requirements: Waste liquid must be properly disposed of to avoid environmental pollution.
3.Efficiency optimization: The reaction rate can be increased by heating or catalysts.
5. Economic Analysis of Platinum Extraction
The following is a comparison of recent platinum prices and extraction costs (data for reference only):
| Project | numerical value |
|---|---|
| Current platinum price (yuan/gram) | 220-250 |
| Chemical reduction method cost (yuan/g) | 30-50 |
| Electrolysis cost (yuan/g) | 20-40 |
6. Summary
Extracting platinum from platinum water is a highly technical task, and the appropriate method needs to be selected based on actual needs. The chemical reduction method is simple to operate and suitable for small-scale extraction; the electrolysis method is more efficient, but requires greater equipment investment. No matter which method is used, attention must be paid to safety and environmental protection.
Recently, with the rise in precious metal prices, platinum recycling technology has become a hot topic. I hope this article can provide you with practical reference information.
check the details
check the details
en
