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
Abstract:
     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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