Sales of the core product, molecular-sieve pervaporation membranes, are made to the United States and the European Union.
Acetone
Background Art
Acetone is a colorless, transparent liquid with a distinctive pungent odor. It is miscible with water and with organic solvents such as methanol, ethanol, diethyl ether, chloroform, and pyridine. It is highly flammable and readily volatile, and exhibits relatively reactive chemical properties. Industrially, acetone is primarily used as a solvent in sectors including explosives, plastics, rubber, fibers, leather processing, fats and oils, and paint manufacturing. It also serves as an important raw material for the synthesis of ketenes, acetic anhydride, iodoform, polyisoprene rubber, methyl methacrylate, chloroform, epoxy resins, and other compounds.
Process Comparison
Taking the 4,000 t/year acetone dehydration process as an example, with an initial acetone water content of 20 wt.% and a product water content of ≤0.5 wt.%, the operating energy consumption of packed‑column distillation, supergravity distillation, and membrane dehydration technologies was compared.
| Name |
Packed tower distillation |
Supergravity Distillation |
Molecular sieve membrane equipment |
| Steam t/t |
1.45 |
1.22 |
0.41 |
| Cooling water m 3/t |
150 |
110 |
36 |
| Electricity kWh/t |
15 |
50 |
28.7 |
| Yield |
Approximately 95% |
95~96% |
≥98% |
| Operation |
The operation is complex and requires continuous monitoring of the overhead composition to make timely adjustments. |
It is easy to operate and highly automated, but the high-gravity rotating bed has relatively high maintenance costs in the long term. |
Simple operation, high degree of automation, and stable product quality. |
| Operating costs |
407.5 |
377 |
138.4 |
| Note |
Electricity: 1 yuan/kWh; Steam: 250 yuan/t; Cooling water: 0.2 yuan/t |
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Taihua Pharmaceutical & Chemical (Hangzhou) Co., Ltd. 1,200 t/a acetone pervaporation membrane unit
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Website:http://www.9t-tech.com
Address: No. 6 Buyue Road, Pukou Economic Development Zone, Nanjing City
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The data presented on this website are partly derived from the company’s internal statistics and customer feedback and are provided for reference only. For specific product performance and applicability, please refer to the contract and technical agreement signed by both parties.
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