Recently, during the "two sessions," the government work report clearly stated that it was necessary to "remove general public service vehicles." This also means that, with the acceleration of relevant policies, car companies will set off a battle for the bus reform dividend. I
The oxidized ore collector generally consists of a polar group and a non-polar group. The polar group contains atoms such as oxygen and nitrogen, and the non-polar group has a large molecular weight. The anionic collectors are: fatty acids and soaps thereof, oxidized paraffin soaps, and terrestria
First, the concept of circular economy and background (1) The concept of circular economy The circular economy is an ecological economy that integrates clean production and comprehensive utilization of waste. It counters the one-way flow of traditional economic “resources-products-pollution
Generally, the resonant screen is divided into two types: elastic link type and inertial type according to the type of the transmission mechanism. At present, China mainly produces an elastic link type resonance screen using a dual mass system. The structure of the elastic link type resonance scre
Tungsten is often associated with many metals and non-metallic mineral ore symbiotic, so Tailings selected from tungsten, certain metals can be recovered non-metallic minerals or ore. As the main tungsten-producing country in China, eight tungsten-selecting plants have recovered molybdenum from tun
   The permanent magnet type magnetic separator can be divided into three types: forward flow type, reverse flow type and semi-reverse flow type according to the structure of the bottom of the tank. The type of the bottom of the box has a great influence on the selection index and operati
Recently, the main equipment installation of the solid pentoxide pentoxide project of Guizhou Kaihua Group's joint venture company was basically completed. The project has entered the stage of equipment anti-corrosion and electric instrument installation and commissioning. The equipment commiss
Activated carbon adsorption in the CIP plant has been dissolved gold is adsorbed in the finished tank. Commonly used adsorption tanks include air-mechanical stirring adsorption tank, air stirring adsorption tank, mechanical stirring adsorption tank, and the like. The structure of the air-mechanical
From the world rare earth consumption (Table 1) can be seen: mainly used in rare earth metallurgy, petrochemical and glass ceramics industry. Since the 1980s, the application of rare earths in the metallurgical industry has been decreasing, while the application of glass ceramics and petrochemicals
In the past, the treatment of waste acid was carried out by means of deep burial or dumping into rivers and lakes. The former Kronos company of the Federal Republic of Germany shipped the waste acid to the sea and released it. These methods are all negative. If they continue, they will inevitably c