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Botanical nickel mining method for low-grade nickel ore

A low-grade nickel ore, low-grade technology, applied in the direction of soil preparation methods, chemical instruments and methods, fertilizer mixtures, etc., can solve the problems of inhibition activity, reduction effect, loss and waste of bacterial fluid, etc., and achieve good water retention and high-efficiency enrichment and extraction, improve the effect of the growth environment

Active Publication Date: 2020-05-08
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention directly applies the Pseudomonas vesicularis bacterium liquid to the soil. On the one hand, it is easy to cause a large amount of loss and waste of the bacterium liquid; its activity, reducing its effect

Method used

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  • Botanical nickel mining method for low-grade nickel ore
  • Botanical nickel mining method for low-grade nickel ore
  • Botanical nickel mining method for low-grade nickel ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A plant nickel mining method of low-grade nickel ore, the low-grade serpentinite soil selected by the present invention is Yuanjiang clay in Yunnan Province, comprising the following steps:

[0034] S1. After opening the low-grade serpentinite soil, plow the ground, ridges, dig soil holes, and then test the pH value of the soil, organic matter content, such as carbohydrates, nitrogenous compounds, lignin, etc., available N, P, K content, test result is as shown in table 1, according to the target soil condition in table 1, prepare soil improver, described soil improver comprises Pseudomonas vesicularis bacterium liquid 0.06 part, sulfuric acid 9 parts of potassium, 4 parts of magnesium chloride, 4 parts of hydrolyzed polyacrylonitrile, 2 parts of asparagus residue, 4 parts of boric acid, 13 parts of fulvic acid, 7 parts of biochar, 6 parts of polyvinyl alcohol, 4 parts of polymerized amino acid, 12 parts of hydrogel share.

[0035]The preparation method of described so...

Embodiment 2～4

[0052] Compared with Example 1, Examples 2 to 4 differ in that the amount of arabic hydrogel added and the amount of adsorption of Pseudomonas vesicularis bacteria liquid are shown in Table 2, and the others are basically the same as in Example 1 , which will not be repeated here.

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Abstract

The invention provides a botanical nickel mining method for low-grade nickel ore. The method comprises the following steps: firstly, preparing a soil conditioner containing bacterial liquid of pseudomonas vesicularis, wherein the bacterial liquid of pseudomonas vesicularis is adsorbed in Arabic gum-based hydrogel; determining the content of each component in the soil conditioner according to selected low-grade serpentinite soil conditions; applying the uniformly mixed soil conditioner into soil holes, then planting nickel-enriching plants, and carrying out daily planting management and regularsampling detection on the nickel-enriched plants; and finally, harvesting and extracting nickel in the plants, thereby realizing efficient enrichment and extraction of nickel in low-grade serpentinite soil. According to the preparation method, the bacterial liquid of pseudomonas vesicularis is adsorbed in the Arabic gum-based hydrogel, so proper conditions are provided for the survival of Pseudomonas vesicularis, loss and waste are reduced, and the promotion effect of pseudomonas vesicularis is improved; in addition, the Arabic gum-based hydrogel has a good water-retaining property, and can adsorb and control release of N, P, K and the like to prevent nutrient loss.

Description

technical field [0001] The invention belongs to the technical field of plant mining, and in particular relates to a method for plant nickel mining of low-grade nickel ore. Background technique [0002] According to data released by the International Council of Mining and Metals (ICMM), as high-grade deposits are gradually depleted, the mining industry will shift from a small number of high-grade deposits to a large number of low-grade deposits. For nickel resources, with the gradual reduction of high-grade nickel sulfide ore resources, the mining of nickel ore has turned to low-grade laterite nickel ore. At present, making full use of serpentine soil with characteristics of high nickel, low fertility, high magnesium and low calcium, or high nickel-contaminated agricultural soil with high ecological environment risk, planting and harvesting nickel hyperaccumulation plants to extract nickel metal or nickel Products, the realization of low-grade laterite nickel ore mining and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C22B23/00C05G3/00C05G3/80C09K17/40C09K101/00
CPCA01B79/02C05C11/00C05G3/00C09K17/40C09K2101/00C22B23/00Y02P10/20
Inventor 戴兵罗鑫尧单启伟张雷
Owner NANHUA UNIV
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