| Title: | Method for microbial-chemical dephosphorization of iron ore | ||
| Application Number: | 94111376 | Application Date: | 1994.07.08 |
| Publication Number: | 1107518 | Publication Date: | 1995.08.30 |
| Approval Pub. Date: | Granted Pub. Date: | ||
| International Classifi-cation: | C12S1/02,C12S13/00,C22B1/00 | ||
| Applicant(s) Name: | Nanjing Forestry Univ. | Address: | 210037 |
| Inventor(s) Name: | Sun Dawang | ||
| Attorney & Agent: | TIANG JIANQING | ||
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Abstract: |
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| The process for dephosphorizing high-P iron ore to obtain powdered iron ore with P content of less than 0.2% includes bioprocessing iron orepowder with culture liquor containing Thiobacillus until reaction stops basically, adding chemically treating liquid containg tannin, stirring and filtering. A great quantity of P-containing impurities is separated into waste liquid. | |||
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| Time: | 7 | ||
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