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Method for processing waste water of acid leaching and deironing of potassium feldspar

A waste water treatment, potassium feldspar technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as high cost, polluted environment, polluted ecological environment, etc., to achieve High efficiency, low cost and high quality effect

Active Publication Date: 2015-05-20
青岛立人环保科技有限公司 +1
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Problems solved by technology

But at present, this process still has shortcomings. After acid leaching, the potassium feldspar washing wastewater contains a large amount of iron ions, which makes the wastewater yellow and highly acidic. It must be treated before it can be discharged, otherwise it will seriously pollute the ecological environment.
[0003] In the existing wastewater treatment, one is that the development of the treatment agent is not perfect, the existing treatment agent has a long action time and high cost; the other is the discharge of waste water, which pollutes the environment

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  • Method for processing waste water of acid leaching and deironing of potassium feldspar

Examples

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Embodiment 1

[0017] Such as figure 1 As shown, taking the treatment of 1 ton of potassium feldspar as an example, a kind of potassium feldspar acid leaching iron removal wastewater treatment process steps are as follows:

[0018] 1) Potassium feldspar acid leaching to remove iron

[0019] Measure 1m30% industrial hydrochloric acid or waste sulfuric acid in the acid leaching iron removal pool, weigh 1 ton of ground potassium feldspar and put it into the acid leaching iron removal pool, mix evenly with a circulation pump, acid leaching at room temperature for 2-3 days, After obtaining the potassium feldspar after acid leaching to remove iron, the hydrochloric acid or waste sulfuric acid acid solution is pumped out for recycling;

[0020] 2) Wash potassium feldspar

[0021] First wash the potassium feldspar after acid leaching and iron removal in step 1) with 2m3 circulating water for 6 times, collect the first washing liquid after washing the potassium feldspar in the first neutralization ...

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Abstract

The invention relates to a method for processing waste water of acid leaching and deironing, in particular to a method for processing waste water of acid leaching and deironing of potassium feldspar. The processing method comprises the steps of carrying out acid leaching and deironing on the potassium feldspar, flushing the potassium feldspar after acid leaching and deironing are carried out, and processing flushing fluid used for flushing the potassium feldspar. The method has the advantages that bluestones and quicklime serve as a processing agent, cost is low, operation is easy, and the processing time is short; as the flushing fluid is recycled in the whole system, no waste water is drained in the whole system, and zero drain of the waste water is achieved.

Description

technical field [0001] The invention relates to a treatment method for acid leaching iron removal wastewater, in particular to a potassium feldspar acid leaching iron removal wastewater treatment method. Background technique [0002] Potassium feldspar is an important raw material for glass, ceramics, and electronics industries. Fe in potassium feldspar 2 o 3 The amount of content is the main factor to evaluate the quality of potassium feldspar. At home and abroad, there are three main directions in the research on iron removal of potassium feldspar: magnetic separation process, acid leaching process and flotation process, among which the acid leaching process has high iron removal efficiency. But at present, this process still has shortcomings. After acid leaching, the potassium feldspar washing wastewater contains a large amount of iron ions, which makes the wastewater yellow and highly acidic. It must be treated before it can be discharged, otherwise it will seriously p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04
Inventor 孔建美宫斌
Owner 青岛立人环保科技有限公司
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