Purification device for electronic-grade hydrogen bromide

• Main Authors: ZHAI XIAOYING, YUAN SHENGFANG, TIE NING, ZHANG JINBIAO, WANG KE, GUO QIONG
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2023
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The utility model discloses a purification device for electronic-grade hydrogen bromide. The purification device comprises a first-stage adsorption tower, a second-stage adsorption tower, a heavy component removal rectifying tower, a light component removal rectifying tower, a third-stage adsorption tower and a finished product storage tank, a discharge port of the second-stage adsorption tower is connected with the lower part of the tower body of the de-heavy rectifying tower; a discharge port at the top of the de-heavy rectifying tower is connected with the middle part of the de-light rectifying tower; the bottom of the de-light rectifying tower is connected with the upper part of the third-stage adsorption tower; the lower part of the third-stage adsorption tower is connected with the finished product storage tank; the first-stage adsorption tower is filled with a mixture of activated carbon and a molecular sieve, and the second-stage adsorption tower is filled with a molecular sieve; the heavy component r