Mine tailing mineral fertilizer and preparation method thereof

A technology of mineral fertilizers and tailings, applied in chemical instruments and methods, organic fertilizers, inorganic fertilizers, etc., can solve problems such as high energy consumption and impact on crop quality, achieve great economic benefits, save energy consumption, and improve soil structure Effect

Inactive Publication Date: 2016-12-21
DALIAN DEETOP ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some research institutes and researchers use tailings to make mineral fertilizers, but these mineral fertilizers require high temperature treatment over 1200°C during processing, which consumes a lot of energy; at the same time, a large amount of chemical raw materials such as caustic soda and sulfuric acid are also required. In order to extract the useful components in natural rocks such as potassium and phosphorus, but it is inevitable that some chemical substances will remain in the mineral fertilizers produced in this way, which are easily absorbed by crops, resulting in a certain impact on the quality of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of tailings mineral fertilizer comprises the following steps:

[0020] (1) Grinding iron tailings, molybdenum tailings, phosphorus-containing siltstone and dolomite respectively to obtain iron tailings powder, molybdenum tailings powder, phosphorus-containing siltstone powder and dolomite powder;

[0021] (2) Iron tailings powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder by weight percentage: iron tailings powder 40%, molybdenum tailings powder 35%, phosphorous powder rock powder 20%, dolomite Mix 5% powder evenly, add humic acid and tap water, the amount of humic acid added is 0.5 times the total weight of iron tailings powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder, and the amount of tap water added is iron tailings powder 1.4 times the total weight of mineral powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder;

[0022] (3) After mixing e...

Embodiment 2

[0027] The preparation method of tailings mineral fertilizer comprises the following steps:

[0028] (1) Grinding iron tailings, molybdenum tailings, phosphorus-containing siltstone and dolomite respectively to obtain iron tailings powder, molybdenum tailings powder, phosphorus-containing siltstone powder and dolomite powder;

[0029] (2) Iron tailings powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder by weight percentage: iron tailings powder 45%, molybdenum tailings powder 30%, phosphorous powder rock powder 15%, dolomite Mix 10% powder evenly, add humic acid and tap water, the amount of humic acid added is 0.7 times the total weight of iron tailings powder, molybdenum tailings powder, phosphorus-containing siltstone powder and dolomite powder, and the amount of tap water added is iron tailings powder 1.6 times the total weight of mineral powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder;

[0030] (3) Aft...

Embodiment 3

[0035] The preparation method of tailings mineral fertilizer comprises the following steps:

[0036] (1) Grinding iron tailings, molybdenum tailings, phosphorus-containing siltstone and dolomite respectively to obtain iron tailings powder, molybdenum tailings powder, phosphorus-containing siltstone powder and dolomite powder;

[0037] (2) Iron tailings powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder by weight percentage: iron tailings powder 43%, molybdenum tailings powder 32%, phosphorous powder rock powder 18%, dolomite Mix 7% powder evenly, add humic acid and tap water, the amount of humic acid added is 0.6 times the total weight of iron tailings powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder, and the amount of tap water added is iron tailings powder 1.5 times the total weight of mineral powder, molybdenum tailings powder, phosphorous sandstone powder and dolomite powder;

[0038] (3) After mixing e...

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Abstract

The invention provides a method for preparing a mine tailing mineral fertilizer and the mine tailing mineral fertilizer obtained by the preparation method. The preparation method of the mine tailing mineral fertilizer realizes reasonable utilization of a mine tailing resource, and increases the resource utilization rate. The prepared mineral fertilizer contains a plurality of minerals and trace elements, which can be used for improving a soil structure during a waste mine restoration process, organic matter content is increased, various elements requirements for plants can be satisfied, so that a purpose of using waste to treat waste can be reached.

Description

technical field [0001] The invention belongs to the field of tailings treatment, and in particular relates to a tailings mineral fertilizer and a preparation method thereof. Background technique [0002] A large amount of tailings are produced during the mining process, which not only occupies a large amount of land, but also causes great harm to the surrounding ecological environment, and also requires investment in treatment and maintenance costs. Therefore, making full use of tailings resources and turning waste into treasure has great scientific significance and social benefits for protecting the environment, improving the level of comprehensive utilization of minerals, and improving economic benefits. [0003] Some research institutes and researchers use tailings to make mineral fertilizers, but these mineral fertilizers require high temperature treatment over 1200°C during processing, which consumes a lot of energy; at the same time, a large amount of chemical raw mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C09K17/40C09K101/00C05G3/80
CPCC05B17/00C05G3/80C09K17/40C09K2101/00C05D3/00C05D9/00C05F11/02
Inventor 马跃李伟高飞高树龙张勇
Owner DALIAN DEETOP ENVIRONMENTAL TECH CO LTD
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