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Method for preparing basic magnesium iodine crystal whiskers from bittern by using solar energy

A technology of magnesium iodide and solar energy, which is applied in the field of salt chemical industry, can solve problems such as contamination, and achieve the effects of high quality, low energy consumption, and large application prospects

Inactive Publication Date: 2018-02-13
LINGNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is conditional for the whiskers to grow straight and exert their self-cleaning properties. It does not mean that they will not absorb impurities and be contaminated by impurities under any circumstances.

Method used

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  • Method for preparing basic magnesium iodine crystal whiskers from bittern by using solar energy
  • Method for preparing basic magnesium iodine crystal whiskers from bittern by using solar energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Utilize Yantian to prepare basic magnesium iodide whiskers from salt lake bittern, specifically comprising the following steps:

[0032] (1) Filtrate the salt lake bittern (the bittern is taken from Chaerhan Salt Lake, Qinghai), and discard the insoluble matter;

[0033] (2) In a salt field with an area of ​​0.1 mu, introduce 1m 3 Filtered bittern, and exposed to sunlight to 35°C;

[0034] (3) preparation final concentration is the NaOH mixed solution of the NaI of 2.60mol / L and 0.2mol / L;

[0035] (4) Introduce the mixed solution of step (3) and the bittern solution into the above-mentioned salt field at a volume ratio of 1:1; , until the next day when the sun rises on the mountain, and then dry it), and then filter the bittern with dense gauze to get basic magnesium iodide whiskers, and then wash and dry to get the product;

[0036] (5) Expose the filtrate obtained in step (4) to sunlight, evaporate the water until the concentration of magnesium ions is 2.600±0.5...

Embodiment 2

[0041] 1. Utilize Yantian to prepare basic magnesium iodide whiskers from salt lake bittern, specifically comprising the following steps:

[0042] (1) Filtrate the salt lake bittern (the bittern is taken from Xuwen Salt Field, Guangdong), and discard the insoluble matter;

[0043] (2) In a salt field with an area of ​​0.1 mu, introduce 1m 3 Filtered bittern, and exposed to sunlight to 37°C;

[0044] (3) preparation final concentration is the NaOH mixed solution of the NaI of 2.0mol / L and 0.5mol / L;

[0045](4) Introduce the mixed solution of step (3) and the bittern solution into the above-mentioned salt field at a volume ratio of 0.5:1; , until the next day when the sun rises on the mountain, and then dry it), and then filter the bittern with dense gauze to get basic magnesium iodide whiskers, and then wash and dry to get the product;

[0046] (5) Expose the filtrate obtained in step (4) to sunlight, evaporate the water until the concentration of magnesium ions is 2.600±0.5...

Embodiment 3

[0051] 1. Utilize Yantian to prepare basic magnesium iodide whiskers from salt lake bittern, specifically comprising the following steps:

[0052] (1) Filter salt lake bittern (bittern is taken from Leizhou Salt Field, Guangdong), and discard insoluble matter;

[0053] (2) In a salt field with an area of ​​0.1 mu, introduce 1m 3 Filtered bittern, and exposed to sunlight to 40°C;

[0054] (3) preparation final concentration is the NaOH mixed solution of the NaI of 3.0mol / L and 0.1mol / L;

[0055] (4) Introduce the mixed solution of step (3) and the bittern solution into the above-mentioned salt field at a volume ratio of 1:1; , until the next day when the sun rises on the mountain, and then dry it), and then filter the bittern with dense gauze to get basic magnesium iodide whiskers, and then wash and dry to get the product;

[0056] (5) Expose the filtrate obtained in step (4) to sunlight, evaporate the water until the concentration of magnesium ions is 2.600±0.5mol / L, then a...

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Abstract

The invention discloses a method for preparing basic magnesium iodine crystal whiskers from bittern by using solar energy. The method comprises the following steps of S1, filtering insoluble matters in the bittern; S2, leading the filtered bittern into a salt field or a transparent container, and exposing under sunlight; S3, adding a NaI (sodium iodine) and NaOH (sodium hydroxide) mixed solution into the exposed bittern, continuing to expose for 2 to 4 days under the sunlight, and filtering the bittern, so as to obtain the basic magnesium iodine crystal whiskers. The method has the advantagesthat the basic magnesium iodine crystal whiskers are prepared from the bittern by using the solar energy and the self-cleanliness of the crystal whiskers, the operation is simple, and the complicatedequipment is not needed; the energy consumption is low, the pollutant and public hazard are avoided, and the salt lake resource is utilized in clean and environment-friendly ways; the output of the crystal whiskers is high, and the quality is high; the method is suitable for preparing the magnesium salt crystal whiskers in a large scale way in the actual production, and the application prospect islarger.

Description

technical field [0001] The invention belongs to the technical field of salt chemical industry. More particularly, relate to a kind of method utilizing solar energy to prepare basic magnesium iodide whisker from bittern. Background technique [0002] The preparation of basic magnesium iodide whiskers from salt lake bittern and seawater bittern mainly utilizes the heat energy released by electric energy or gas combustion at present. As a new energy source, solar energy reaches about 130 trillion tons of coal every year on the surface of the earth, and its total amount is the largest energy source that can be developed in the world today. Compared with conventional energy such as electric energy, it has three characteristics: First: it is the most abundant energy available to human beings. It is estimated that over the past 1.1 billion years, the sun has consumed 2% of its own energy. In the future, it will be enough to supply the human beings on the earth and use it for bil...

Claims

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Application Information

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IPC IPC(8): C30B7/14C30B29/62C30B29/12
CPCC30B7/14C30B29/12C30B29/62
Inventor 吴健松
Owner LINGNAN NORMAL UNIV
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