萘氧化制苯酐催化剂 - Names and Identifiers
萘氧化制苯酐催化剂 - Physico-chemical Properties
| Physical and Chemical Properties | The appearance is yellow-green fine particles, and the particle size is 48~370 μm [more than 90% (mass)]. Other sizes or particle sizes can be supplied according to the requirements of users. The bulk density is 700~800kg/m3 and the specific surface area is 120~180 m2/g. Catalytic activity: phthalic anhydride yield ≥ 80%. Evaluation conditions: reaction temperature 345 ℃, catalyst load naphthalene 70g/(l h), air flow 1000 cm3/min, naphthalene/air 23, empty tower line velocity 0.08 m/s. |
萘氧化制苯酐催化剂 - Introduction
The nature of the catalyst for the oxidation of naphthalene to phthalic anhydride is an ammonium salt compound, and the common one is tetraethylammonium hydroxide. They have good catalytic activity and selectivity, and can effectively oxidize naphthalene to phthalic anhydride.
The main purpose of the catalyst for the oxidation of naphthalene to phthalic anhydride is to be used as a catalyst in chemical production. In the preparation of phthalic anhydride, it can be used as a catalyst to promote the reaction and improve the yield and selectivity.
The method for preparing naphthalene oxidation to phthalic anhydride catalyst is mainly obtained by reacting a certain proportion of tetraethylammonium hydroxide and a mixture of chlorinated alkanes.
It should be noted that the catalyst for the oxidation of naphthalene to phthalic anhydride needs to be safe during use. They are generally organic salts, which have certain toxicity, so it is necessary to follow appropriate operating procedures to avoid direct contact or inhalation. At the same time, they are also flammable and explosive, and need to be stored in a cool, ventilated place, away from fire and combustible materials. When using and handling the catalyst, the relevant safety operation procedures should be strictly followed.
Last Update：2024-04-09 21:11:58