CM-PATRACritical Minerals Patent and Technology Research Analytics
CM-PATRA / record
Process for the synthesis of flyash based zeolite-Y
- Publication
- US-6027708-A on Google Patents
- Filed / published / granted
- 1998-09-08 / 2000-02-22 / 2000-02-22
- Offices
- US
- Applicants
- CSIR (Council of Scientific & Industrial Research) (IN, government-rd)
- Minerals
- General metallurgy (mineral unspecified)
- Stages
- Compounds and materials
- Waste stream
- Coal fly ash and coal rejects
- CPC
- C01B39/20, Y10S423/21
- Abstract (first 170 chars)
- The present invention relates to a process for the synthesis of flyash based zeolite-Y (FAZ-Y), comprising grainding and mixing of flyash with caustic soda in a ratio ranging between 1:0.4-1:1.2 to obtain a fine homogenous fusion mixture, heating the said fusion mixture in an invert vessel at about 500-600 DEG C. for about 1-2 hours to obtain a fused mass, cooling, milling, and mixing of the said fused mass in distilled water for about 8-12 hours, subjecting the said slurry to hydrothermal crystallization at about 90-110 DEG C. for 8 to 12 hours to obtain FAZ-Y crystals, washing the said cry
Why it is labelled this way
Decided by cpc-rules: Metallurgy classes (C22B) without a named mineral.
Source: Google Patents Public Data (BigQuery), CC BY 4.0.