Title: Slurry liquid solid separating method for alumyte concentrate
Application Number: 200410100974 Application Date: 2004.12.28
Publication Number: 1621158 Publication Date: 2005.06.01
Approval Pub. Date: 2006.11.15 Granted Pub. Date: 2006.11.15
International Classifi-cation: B03D3/06
Applicant(s) Name: Aluminum Corporation of China Limited Address: 100814
Inventor(s) Name: Huang Ang, Li Peizeng
Attorney & Agent: li yingchun wang lianfa
Abstract:
     The liquid-solid separating process for alumyte concentrating slurry features the first addition of 1-30 wt% concentration sulfuric acid or sulfate in acidity after hydrolysis into the floated concentrated slurry to regulate pH value to 7.5-8.5; the subsequent addition of polyacrylamide as organic flocculant in the amount of 0.01-0.15 % of the dry concentrate weight for flocculating and depositing separation; the addition of 1-30 wt% concentration sulfuric acid or sulfate in acidity after hydrolysis into the separated bottom flow to regulate pH value to 6.5-7.5; and final filtering and dewatering. The said process has greatly improved deposition and filtering performance of the concentrated ore slurry, coagulation and flocculation of the fine particles, and greatly raised dewatering and solid-liquid separating effects.
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