The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Jan. 12, 2018
State Grid Corporation of China, Beijing, CN;
State Grid Shaanxi Electric Power Research Institute, Shaanxi, CN;
Central South University, Hunan, CN;
State Grid (Xi'an) Environmental Protection Technique Center Co. Ltd, Shaanxi, CN;
Qiang Sun, Shaanxi, CN;
Jian Wu, Shaanxi, CN;
Yin Chen, Hunan, CN;
De Ding, Shaanxi, CN;
Genzhou Zhang, Shaanxi, CN;
Xiaochun Bai, Shaanxi, CN;
Anxiang Guo, Shaanxi, CN;
Yantao Zhang, Shaanxi, CN;
Pinghai Lv, Shaanxi, CN;
Xiaobing Yu, Shaanxi, CN;
STATE GRID CORPORATION OF CHINA, Beijing, CN;
STATE GRID SHAANXI ELECTRIC POWER RESEARCH INSTITUTE, Shaanxi, CN;
CENTRAL SOUTH UNIVERSITY, Hunan, CN;
STATE GRID (XI'AN) ENVIRONMENTAL PROTECTION TECHNIQUE CENTER CO. LTD, Shaanxi, CN;
Abstract
Provided are a process and a device for preparing environmentally-friendly insulating gas perfluoroalkylnitrile. The device comprises a first tank reactor, a second tank reactor, and a fixed bed reactor. A condensing and collecting device is provided at the top of the first tank reactor, a collecting and guiding channel at the bottom of the condensing and collecting device is connected to an inlet of a storage tank, and an outlet of the storage tank is connected to an inlet of the second tank reactor. The second tank reactor is connected to a perfluoroolefin tank. An outlet of the second tank reactor is connected to a storage gasification tank. The storage gasification tank is connected to a carrier gas tank, and an outlet of the storage gasification tank is connected to an inlet of the fixed bed reactor. The present invention starts from cyanuric chloride and perfluoropropylene, and uses two tank reactors and a fixed bed reactor to realize production with high atom economy. The preparation method has simple reaction conditions, high atom economy, low cost, and is continuous and enables scale production.