Device and method for preparing graphite by Zn/Fe flame sealed-tube method
A tube sealing method, graphite technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve problems such as affecting the efficiency of graphite preparation, time-consuming, etc., to improve practical performance, avoid atmospheric leakage, and improve safety. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0099] Loading CO 2 Before preparing raw materials, the present invention preferably combines CO 2 The oxidant in the raw material for preparation is decarbonized, and the decarbonization is preferably kept at 800-950°C, more preferably 850-930°C, and even more preferably 900°C; the holding time is preferably 1.5-2.5h, more preferably It is 1.7 to 2.2 hours, more preferably 2 hours.
[0100] CO in the present invention 2 The method of filling, vacuuming, and flame sealing of the raw materials are described in Example 1.
[0101] In the present invention, the CO 2 When heating the raw materials for the preparation, the heating temperature is preferably 840-860°C, more preferably 845-855°C, even more preferably 850°C, and the heating time (ie reaction time) is preferably ≥12h, more preferably 12- 15h, more preferably 13-14h. The heating of the present invention is preferably performed in a muffle furnace.
[0102] When preparing CO 2 When the raw material is an inorganic carbon raw m...
Example Embodiment
[0113] Example 1
[0114] according to Figure 1~2 The structural construction device shown: the main pipeline Z-1 is composed of a 9.5mm outer diameter glass welded high vacuum glass valve (Kimble, USA), and the detachable part is connected with an Ultra-Torr stainless steel joint (Swagelok, USA);
[0115] Vacuum system 1 is supported by Hicube 80 vacuum pump set and compound vacuum gauge PKR 251 (Pfeiffer Vacuum, Germany); the front pump of the turbomolecular pump is an oil-free diaphragm pump;
[0116] First CO 2 Preparation unit 2, second CO 2 Preparation unit 6, the first CO 2 Purification unit 3, second CO 2 Purification unit 5, CO 2 Sampling unit 4 consists of CO 2 Sampling unit 4 consists of CO 2 Constant-volume tube 4-1, double-sleeve reactor 4-2, 13 C sampling pipe 4-3 and backup sample sampling pipe 4-4 are composed, and the setting method is to be fixed at the connecting nozzle of connecting pipe H-2 through a connecting joint;
[0117] The following experiments are carried...
Example Embodiment
[0137] Example 2
[0138] Same as Example 1, except that the inorganic carbon sample is used in the Y-type acidolysis tube with 6mL phosphoric acid (85%V / V, Tianjin Kermel Chemical Reagent) for acidolysis to generate CO 2 . The inorganic carbon sample used in this embodiment is calcite (IHEG Cal, inorganic carbon). The calcite crystals are collected from the Yangliugang Formation (Middle Cambrian ~ 520 Ma), with high crystallinity, pure white and no impurities. The crystals were broken in an agate mortar and soaked in 1% (V / V) hydrochloric acid for 4 hours to remove the influence of surface inorganic carbon. After washing and drying with deionized water, they were used for graphite preparation and carbon dioxide purification and collection.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap