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Patent number: 200810058419
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Full-float beneficiation method for polymetal siderite

The invention relates to a method for full-float beneficiation of polymetallic siderite, which is aimed at siderite with high sulfur content and associated elemental copper, and accompanied by a small amount of hematite, pyrrhotite and yellow Iron ore and other ore adopt full flotation process to obtain rhodolite concentrate index with grade Fe≥38%, iron recovery rate 75 ~ 80%, sulfur content less than 0.20%, and copper grade ≥18%. Copper concentrates with a recovery rate of ≥70%, sulfur grades of ≥45%, and sulfur concentrates with a recovery rate of ≥70%. In the present invention, a special siderite collector is used for collection, which can cause strong physicochemical adsorption between the surface of the siderite and the SP collector, and can effectively separate siderite from other non-purpose minerals.

Full-float beneficiation method for polymetal siderite

A method for full-flotation beneficiation of polymetallic siderite, which is characterized in that it is completed according to the following steps: 1) the raw siderite is ground into a slurry; 2) copper-sulfur mixed flotation, copper-sulfur coarse separation: The amount of hexametaphosphate sodium ore slurry is 600 ~ 800g / t ore, stirred for 3 ~ 5min, Yihuangyao 300 ~ 500g / t ore, stirred for 3 ~ 5min, pentaflavone 200 ~ 400g / t ore, stirred for 3 ~ 5min, 2 ↑ [#] Oil 30 ~ 50g / t ore, stir 2 ~ 4min, aerated scraping bubble 3 ~ 6min; copper and sulfur sweeping: use sodium hexametaphosphate to pulp, the amount is 300 ~ 400g / t ore, Stir 3 ~ 5min, Yihuang medicine 150 ~ 250g / t ore, stir 3 ~ 5min, penhuang medicine 100 ~ 200g / t ore, stir 3 ~ 5min, 2 ↑ [#] oil 15 ~ 25g / t ore, stir 2 ~ 4min, aerated scraping bubble 3 ~ 6min; 3) copper and sulfur separation flotation: activated carbon detoxification 200 ~ 4 0g / t ore, stir 5-10min, add lime 3000-6000g / t ore, adjust pH value = 12-14, stir 3-6min, 2 ↑ [#] oil 20-4040g / t ore, stir 2-4min, Inflatable scraping foam 2 ~ 4min; 4) Copper selection I: lime 3000 ~ 6000g / t ore, stirring 3 ~ 6min, 2 ↑ [#] oil 20 ~ 40g / t ore, stirring 2 ~ 4min, inflatable scraping foam 2 ~ 4min; copper selection Ⅱ: lime 2000 ~ 4000g / t ore, stirred for 3-6min, 2 ↑ [#] oil 10 ~ 30g / t ore, stirred for 2 ~ 4min, aerated scraping bubble 2 ~ 4min; copper selection Ⅲ: Lime 1500 ~ 3000g / t ore, stir 3 ~ 6min, 2 ↑ [#] Oil 10 ~ 30g / t ore, stir 2 ~ 4min, aeration scrape 2 ~ 4min; copper selection IV: lime 800 ~ 1500g / t ore , Stir for 3 ~ 6min, 2 [#] Oil 5 ~ 15g / t ore, stir for 2 ~ 4min, aerated scraping bubble for 2 ~ 4min; 5) Sulfur selection I: sulfuric acid adjustment pH value = 3 ~ 5, ethyl yellow medicine 200 ~ 400g / t ore, stir 3 to 6 min, 2 ↑ [#] Oil 10 to 30 g / t ore, stirred for 2 to 4 min, aerated scraping bubble for 2 to 4 min; sulfur selection II: sulfuric acid adjusted pH value = 3 to 5, ethyl yellow medicine 100 to 200 g / T ore, stirring 3 ~ 6min, 2 ↑ [#] Oil 10 ~ 20g / t ore, stirring 2 ~ 4min, aerated scraping bubble 2 ~ 4min; 6) Rough iron ore selection: activated carbon detoxification 200 ~ 400g / t For ore, stir for 5 to 10 min. Use sodium hexametaphosphate as a regulator to adjust the slurry to increase the dispersion of the ore. The dosage is 400 to 800 g / t ore. Stir for 3 to 6 min. Adjust the pH value of sulfuric acid to 5 to 6. ~ 6min, adding starch as an inhibitor, the dosage is 500 ~ 800g / t ore, stir for 3 ~ 6min, add SP-type collector, its amount is 400 ~ 800g / t ore, stir for 3 ~ 6min, add 2 ↑ [#] oil as a foaming agent, its amount is 10 ~ 40g / t ore, stir for 3 ~ 6min , Aerated and scraped foam, the foam products into the next stage of reverse flotation sulfur and phosphorus reduction operations; 7) siderite selection Ⅰ: sulfuric acid adjusted pH value = 5 ~ 6, stir 3 ~ 6 min, the amount of starch 400 ~ 600g / t For ore, stir 3 ~ 6min, SP collector 200 ~ 400g / t ore, stir for 3 ~ 5min, add 2 ↑ [#] oil 10 ~ 30g / t ore, stir for 3 ~ 6min for aeration and scraping, and enter the foam product into The next stage of the selection operation; Selection II: pH value of sulfuric acid adjusted to 5-6, stirring 3-6min, starch consumption 200-400g / t ore, while stirring 3-6min, adding 2 ↑ [#] 油 10 ~ 20g / t ore, agitate 3 ~ 6min for aeration and scrape foam, and put the foam product into the next selection operation , Selection III: Adjust the pH value of sulfuric acid = 5 ~ 6, stir for 3 ~ 6min, the amount of starch is 100 ~ 300g / t ore, while stirring for 3 ~ 6min, add 2 ↑ [#] oil 5 ~ 10g / t ore, aerate scrape After foaming, the foam product is dehydrated and dried to obtain magnesite concentrate.



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Patent No: 200810058419
Application date: May 21, 2008
Open / Announcement Date: October 1, 2008
Authorization announcement date:
Applicant / Patentee: Kunming University of Science and Technology, Kunming Iron and Steel Group Co., Ltd.
Country / Province: Yunnan (53)
Postcode: 650031
Inventor / Designer: Chen Xiaoming, Qiu Chongdong, Xiao Junhui, Lei Yun, Xiao Ronghua, Zhang Yu, Zhang Zonghua
agent: Zhou Yikang
Patent Agency: (53112)
Patent Agency Address: ()
Patent Type: invention
public account: 101274306
Announcement date:
Authorization date:
Bulletin number: 000000000
priority:
Approval history:
Number of figures: 1
Pages: 7
Number of claims: 2
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