Utilization method of glauberite ore

A kind of glauberite and pulp technology, which is applied in the field of glauberite utilization

Inactive Publication Date: 2017-05-31
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to address the problem that the discharged glauberite ore urgently needs to be resourced, an

Method used

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  • Utilization method of glauberite ore

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Experimental program
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Effect test

Embodiment 1

[0050] The main components of the glauberite ore of this embodiment are shown in Table 1.

[0051] The main component of the glauberite ore of table 1 embodiment 1

[0052] Element Glauber's salt dolomite quartz Kaolinite Mica Content (wt%) 70 8.9 8.7 5.4 2.3

[0053] The utilization method of glauberite ore is as follows:

[0054] Glauberite ore is sequentially subjected to coarse crushing, medium crushing and fine crushing until the particle size is less than 10 mm to obtain Glauberite ore powder.

[0055] The glauberite ore powder is added into a wet ball mill to grind into ore pulp, the concentration of the ball milled ore pulp is controlled to 50wt%, and the particle size of the glauberite ore after ball milling is less than 0.45mm.

[0056] Pump the pulp into the continuous countercurrent leaching device, adjust the concentration of the leaching pulp to 50wt%, maintain the leaching temperature at 30°C, stir and leaching for 120min, use...

Embodiment 2

[0060] The main components of the glauberite ore of this embodiment are shown in Table 2.

[0061] The main component of the glauberite ore of table 2 embodiment 2

[0062] Element Glauber's salt dolomite quartz Kaolinite Mica Content (wt%) 60 11 12 8 2.4

[0063] The utilization method of glauberite ore is as follows:

[0064] Glauberite ore is sequentially subjected to coarse crushing, medium crushing and fine crushing until the particle size is less than 10 mm to obtain Glauberite ore powder.

[0065] Put the glauberite ore powder into a wet ball mill to grind into ore pulp, the concentration of the ball milled ore pulp is controlled to 80wt%, and the particle size of the glauberite ore after ball milling is less than 0.18mm.

[0066] Pump the pulp into the continuous countercurrent leaching device, adjust the concentration of the leached pulp to 40wt%, maintain the leaching temperature at 50°C, stir and leaching for 60min, use a plate an...

Embodiment 3

[0070] The main components of the glauberite ore of this embodiment are shown in Table 3.

[0071] The main component of the glauberite ore of table 3 embodiment 3

[0072] Element Glauber's salt dolomite quartz Kaolinite Mica Content (wt%) 73 8 7.6 4.9 2

[0073] The utilization method of glauberite ore is as follows:

[0074] Glauberite ore is sequentially subjected to coarse crushing, medium crushing and fine crushing until the particle size is less than 10 mm to obtain Glauberite ore powder.

[0075] Put the glauberite ore powder into a wet ball mill to grind into ore pulp, the concentration of the ball milled ore pulp is controlled to 65wt%, and the particle size of the glauberite ore after ball milling is less than 0.30mm.

[0076] Pump the pulp into the continuous countercurrent leaching device, adjust the concentration of the leaching pulp to 46wt%, maintain the leaching temperature at 60°C, stir and leaching for 30min, use a plate a...

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Abstract

The invention relates to a utilization method of glauberite ore. The method includes the steps of: crushing glauberite ore to a particle size of less than 10mm to obtain glauberite ore powder; mixing the glauberite ore powder with water, and then performing grinding into ore pulp; and subjecting the ore pulp to leaching, and then conducting solid-liquid separation, thus obtaining a liquid for preparation of anhydrous sodium sulphate and a solid for preparation of a cement retarder. The utilization method of glauberite ore provided by the invention finally can acquire the liquid for preparation of anhydrous sodium sulphate and the solid for preparation of a cement retarder, recovers sodium sulfate in glauberite ore, and also achieves comprehensive utilization of calcium sulfate in glauberite ore. Therefore, the method can realize overall resource utilization of glauberite ore, and also can solve land occupation of glauberite ore and waste residue formed thereby, and the possibly caused debris flow, landslides and other secondary geological disasters and environmental pollution problems, thus being suitable for industrial application.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of mineral resources, in particular to a method for utilizing glauberite ore. Background technique [0002] my country has abundant glauberite resources, which are widely distributed in Sichuan, Yunnan, Hunan, Guangxi and other places. Glauber's salt (Na 2 SO4·CaSO 4 ) is mainly used in the production of Yuanmingfen (Na 2 SO 4 ). Since the 1980s, relevant enterprises in Sichuan have begun to develop glauberite mines by chamber water dissolution method. After blasting to form a melting zone, the ore is leached with water on the spot to provide rough salt water to the processing plant, and the slag is left in the underground to dissolve the cavern. In the chamber, it is a comprehensive mining method that combines conventional mining technology with chemical leaching operations. However, in the process of blasting to form a melting zone, a large amount of glauberite ore needs to be tran...

Claims

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Application Information

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IPC IPC(8): C01D5/00C01F11/46C04B22/14C04B103/22
CPCC01D5/00C01F11/46C04B22/143C04B2103/22
Inventor 张秀峰谭秀民张利珍
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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