Gold oxide recovery_ Gold(III) oxide recovery_ Precious metal catalyst recycling manufacturer
Gold oxide is a gold compound with the chemical formula Au2O3. It is a compound formed by gold and oxygen elements, and has special chemical properties and application value. Gold oxide is a black solid with high instability and photosensitivity. It decomposes into gold and oxygen at room temperature, so it needs to be prepared and processed under specific conditions. Gold oxide has good electrical and thermal conductivity, and is also a semiconductor material. It can be converted into other gold oxides under high temperature and high pressure. Waste gold oxide is one of the sources of recycling of gold-containing precious metal catalyst waste. The recycling sources of gold-containing precious metal catalyst waste also include gold chloride recovery, gold powder recovery, gold salt recovery, potassium chloroaurate recovery, gold plating solution recovery, etc.
Product Details
Gold oxide is a compound of gold with the chemical formula Au2O3. It is a compound formed by gold and oxygen elements, with special chemical properties and application value. Gold oxide is a brown or brownish black powder with high instability and photosensitivity. It will decompose into gold and oxygen at room temperature, so it needs to be prepared and treated under specific conditions. Oxidized metal has good conductivity and thermal conductivity, and is also a semiconductor material. It can be transformed into other gold oxides under high temperature and pressure.
Gold oxide can be prepared through various methods, including the following common methods:
1. Thermal decomposition method: This is a commonly used method for preparing gold oxide. Metal gold or gold salt (such as Chloroauric acid) is heated at high temperature, usually in the range of 500-600 ℃, to decompose into gold oxide and metal gold. This process needs to be carried out in an inert atmosphere to avoid further decomposition of gold oxide.
2. Chemical oxidation method: This is another method for preparing gold oxide. Metal gold or gold salt can react with some oxidants, such as hydrogen peroxide (H2O2) or Perchloric acid (HClO4). Under proper conditions, the Oxidation state of gold will increase and form gold oxide.
3. Oxidation reduction method: This method is to reduce the Oxidation state of gold to metal gold under the action of reducing agent, and then re oxidize it to gold oxide in the presence of oxygen. The commonly used reducing agents are Sulfite and nitrite. This method requires precise control of reaction conditions to avoid the production of other gold oxides.
4. Solution precipitation method: This is a method of preparing gold oxide through solution reaction. Gold salt reacts with some precipitants, such as alkaline gold salts or carbonates, in a solvent to form gold oxide precipitates. Then, pure gold oxide is obtained by precipitation separation and drying.
Waste gold oxide is one of the sources of recovery of gold containing noble metal catalyst waste. The recovery sources of gold containing noble metal catalyst waste also include Gold(III) chloride recovery, gold powder recovery, gold salt recovery, Chloroauric acid recovery, gold plating solution recovery, etc. If you have any demand for gold plating waste recycling, please call our 24-hour service hotline. Dingfeng Precious Metal Recycling and Refining Factory has its own recycling and refining factory, and there are no intermediaries to earn price differences. Our professional technical team and customer service personnel provide one-on-one services to ensure customer privacy during the recycling process.
