Separation and Purification of Glycine and Ammonium Chloride
1. Feed Liquid Situation
Basic data | Feed | 8m3/hour; 40% (%W/W) mixture of glycine and ammonium chloride |
Feed solid content | 40% | |
Glycine fraction | 55-59% | |
Ammonium chloride fraction | 39-44% | |
Other impurities | ≤2% (ash content: ≤1%) | |
pH | 5.5-6.5 | |
Operating temperature | 25-40℃ | |
Technical indicators | Resin amount | ~ 120-140 m3 |
Glycine product flow | ~10m3/hour | |
Glycine purity | ≥98.5% | |
Glycine product liquid-solid content | ~18% | |
Glycine one-time yield | ≥95% | |
Ammonium chloride product flow | ~9.5m3/hour | |
Ammonium chloride byproduct liquid-solid content | ~14% |
2. Purification Process
The glycine crude water solution consist of glycine and ammonium chloride enters into the continuous chromatographic separation system that exclusively fills chromatographic media. The continuous countercurrent manner is used. According to the different speeds of movement of glycine and ammonium chloride in chromatographic filler, water is used as the eluting agent to respectively collect eluent and residual liquid and acquire glycine and ammonium chloride products to achieve efficient separation of glycine and ammonium chloride.
3、Operating Cost
The total annual operating cost of equipment | 62.3 | 10,000 yuan |
Annual output | 12000 | ton/year |
Unit processing cost | 51.93 | yuan/ton |
unit consumption of electricity capacity | 17.46 | yuan/ton |
Amount of processing pure water unit consumption | 22.77 | yuan/ton |
Amount of processing resin unit consumption | 11.7 | yuan/ton |
