At present, the commonly used foaming agents in China and their characteristics are as follows: Door And Window Fittings,Aluminum Door And Window Fittings,Die Casting Door And Window Fittings,Aluminum Die Casting Door And Window Fittings Ningbo Beilun Huari Metal Products Co., Ltd. , http://www.huari-metal.com
1. Pine oil Also known as pine oil and turpentine, oil. The main component is terpene alcohol, followed by decyl alcohol, secondary alcohol and ether compounds. Pine oil has a strong foaming ability. Due to the gradual reduction of sources, it has rarely been applied in industry.
2. Pine oil is also called No. 2 flotation oil. The main component is terpene alcohol, which has a pungent odor, is flammable, slightly soluble in water, oxidizable in air, and has an increased viscosity after oxidation.
The pine oil has strong foaming property and produces a foam of uniform size, compact structure and medium viscosity. When the amount is too much, the foam becomes fine and sticky, which affects the quality of the concentrate and normal operation.
3. Camphor oil Camphor oil is divided into white oil, red oil and blue oil. White oil foam is brittle, clean and has good selectivity. It can be used in flotation process with high floatability and high grade of concentrate (such as flotation of molybdenum ore); red oil has strong foaming and foam is more sticky; blue Oil has a certain degree of capture.
4. Eucalyptus oil The main ingredient is sterol. Its flotation performance is similar to that of pine oil, with better selectivity and slightly higher dosage.
5. Cresol (cresol) Cresol actually, a mixture of cresol and xylenol, has a lower foaming performance than pine oil. Pure Advanced cresylic acid capable of forming a brittle foam, better selectivity, preferably for multi flotation of metal ores.
Cresol is toxic and flammable. When using it, care should be taken to protect the eyes and skin from burning.
6. Fatty alcohols The foaming properties are related to the length of the carbon chain, and the linear or branched fatty alcohol having a hydrocarbon chain length is an excellent foaming agent. Fatty alcohols having a carbon number of 5-8 have the highest foaming ability. Alcohols with the same molecular weight have stronger foaming ability than other isomers.
Commonly used fatty alcohol foaming agents are: fusel oil, high alcohol oil and methyl pentanol.
The alcohol foaming agent has high solubility, fast foaming speed, non-sticky foam, easy defoaming, no collecting property, and no gangue, which is beneficial to the quality of the concentrate. Can be added in sections when used.
Etherol and phenylethyl ester oils are novel foaming agents used in recent years. Ganka oil, new pine oil, and butyl ether oil (No. 4 oil) are new foaming agents currently being promoted.