| Title: | Trisodium citrate preparing process using anion exchange resin | ||
| Application Number: | 95119599 | Application Date: | 1995.12.04 |
| Publication Number: | 1153822 | Publication Date: | 1997.07.09 |
| Approval Pub. Date: | Granted Pub. Date: | 2000.09.06 | |
| International Classifi-cation: | C07C51/42,C12P7/48 | ||
| Applicant(s) Name: | Ecological Environment Research Center, Chinese Ac | Address: | 100085 |
| Inventor(s) Name: | Zhang Hongxun, Lu Zhibin | ||
| Attorney & Agent: | HUANG GYONGKUI | ||
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Abstract: |
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| The prepn process of trisodium citrate includes:porous filtration of fermented liquid in plate-frame filter to eliminate foreign matter, decoloring with active carbon, eliminating foreign metal ion with cation exchange resin, eliminating foreign anion ion with anion exchange resin, citric radical adsorption and exchange with No.8310 anion exchange resin, eliminating easy-to-carbonate compound in sodium citrate buffer solution, sodium hydroxide resolution of citric radical, concentration and crystallization. The said method can result in a citric acid-to-sodium citrate conversion rate of 90%. | |||
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| Time: | 3 | ||
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