Molecular sieve membrane separation technology is a new liquid product purification and separation technology, which can remove trace water in organic solvents and a small amount of organic pollutants in wastewater. Its outstanding advantage is that it can realize the separation tasks that are difficult to be realized by traditional methods such as distillation, extraction and adsorption with low energy consumption. It is especially suitable for near boiling points that are difficult to be separated or cannot be separated by distillation The separation of constant boiling point mixtures and isomers has obvious economic, environmental protection and technical advantages. This technology has broad application prospects and market potential in petrochemical, pharmaceutical, food, environmental protection, fine chemicals and other industrial fields. It is recognized as one of the most promising high and new technologies in the 21st century.
Jiaxing Runbo Chemical Technology Co., Ltd. has organized the technical development of molecular sieve membrane and its complete set of membrane separation equipment since 2009, and has successfully developed an industrial NAA molecular sieve membrane with a length of 80cm. Its characteristics are different from the previous preparation methods in static closed system. The preparation technology adopts the preparation of molecular sieve membrane in flow system, which fundamentally overcomes the problem of molecular sieve membrane, Especially the concentration gradient problem in the preparation of molecular sieve membrane in industrial application scale; The key working principle of preparing molecular sieve membrane by flow system the raw material slurry is transported back and forth by two-stage pumps to ensure that the basic tube with crystal seed is always in the environment of concentrated raw material slurry, so as to solve the problem of concentration gradient. A complete set of molecular sieve membrane separation equipment with different treatment capacity has been built to realize the separation of organic solvent and water and the recycling of organic solvent. Two patents have been applied for, which are a new method for preparing A-type molecular sieve membrane in flow system (20092008991.2) and a new thermostatic tube membrane module (200710049348. X).
