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A kind of technological method of recovering sulfur concentrate from potassium-rich slate

A technology of potassium-rich slate and process methods, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of high sulfur content in ore, loss of sulfur concentrate, high amount of roasting slag, and improve separation efficiency , Improve utilization rate, high output effect

Active Publication Date: 2020-09-29
BAOTOU IRON & STEEL GRP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Therefore, those skilled in the art are committed to developing a process for recovering sulfur concentrate from potassium-rich slate to solve the problems of high sulfur content in potassium-rich slate ore, high subsequent roasting slag, and loss of sulfur concentrate in the above-mentioned prior art. defect

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  • A kind of technological method of recovering sulfur concentrate from potassium-rich slate

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Embodiment

[0057] The technological method of reclaiming sulfur concentrate in embodiment, potassium-rich slate

[0058] Step 1. Processing of raw materials

[0059] The potassium-rich slate is crushed in three stages of coarse crushing, medium crushing and fine crushing, and the particle size of the crushed product is -3mm;

[0060] Step 2. Grinding

[0061] Grinding the above crushed products, the particle size of the grinding products is -0.074mm, accounting for 81.4%;

[0062] Step 3, carrying out a section of magnetic separation on the above-mentioned grinding product under the condition of a magnetic field strength of 179.1kA / m, to obtain magnetic separation concentrate and magnetic separation tailings;

[0063] After testing, the sulfur content in the magnetic separation concentrate is 10.41%, and the recovery rate is 44.50%; the potassium oxide content in the magnetic separation tailings is 10.70%, the potassium oxide recovery rate is 95.33%, and the sulfur content is 1.41%;

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Abstract

The invention discloses a technology method for recycling sulfur concentrates from potassium-rich slate. The technology method comprises the steps that the potassium-rich slate is crushed and subjected to ore grinding and magnetic separation, then, an activating agent, a collecting agent and a foaming agent are added for roughing and fine selecting, and the sulfur concentrates are obtained, wherein the magnetic separation magnetic field intensity is 159-199 kA / m, the activating agent is the mixture of oxalic acid and cupric sulfate, the collecting agent is the mixture of isobutyl xanthate andmixed amine, and the foaming agent is terpenic oil. According to the technology method for recycling the sulfur concentrates from the potassium-rich slate, the flotation reagent combination proportionis optimized, the sulfur containing concentration separation efficiency is effectively improved, the high-quality sulfur concentrates are obtained, cost is saved, and incomings are improved.

Description

technical field [0001] The invention relates to the technical field of mining engineering, in particular to a process for recovering sulfur concentrate. Background technique [0002] The main and eastern mines of Baiyan Obo Mine are rich in potassium-rich slate resources. The proved reserves of potassium-rich slate in the hanging wall of the main and eastern mines are 340 million tons, which is a super-large potassium deposit. Potassium-rich slate is mainly composed of potassium feldspar, followed by hornblende, biotite, sodium pyroxene, pyrrhotite, hematite, etc., and a small amount of quartz, pyrite, etc. Among them, pyrrhotite often coexists with hematite in irregular flakes, and the local content can reach 10%. The average grade of potassium oxide in general potassium ore is 10.58%, and the sulfur content is about 2.4%. If the ore is roasted directly, due to the low grade of potassium oxide and high sulfur content, more slag and slag will be produced during the roasting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03D1/018B03D1/012B03D1/008B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03B7/00B03D1/008B03D1/012B03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 姬俊梅刘凤国李满年彭艳荣江峰吕晓艳谢育林
Owner BAOTOU IRON & STEEL GRP
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