Method for preparing basic magnesium borate whiskers by using bitter halogen of salt lakes

A technology of magnesium borate whiskers and bittern, which is applied in the field of preparing basic magnesium borate whiskers, can solve the problems of consuming manpower and material resources, affecting the ecological balance of offshore waters, and insufficient utilization of bittern, and achieves the effect of reducing manpower

Inactive Publication Date: 2018-05-25
LINGNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, limited by the technical level, the utilization rate of bittern is less than 20%, and a large amount of bittern resources are discharged into the sea or circulated in salt pans, which not only causes a waste of resources but also affects the ecological balance of offshore waters
[0003] In practical application, to prepare basic magnesium borate whiskers from bittern, whenever the physical and chemical properties of bittern change, a large number of complicated exploratory experiments must be done to adapt to the new conditions, which consumes a lot of manpower and material resources

Method used

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  • Method for preparing basic magnesium borate whiskers by using bitter halogen of salt lakes
  • Method for preparing basic magnesium borate whiskers by using bitter halogen of salt lakes
  • Method for preparing basic magnesium borate whiskers by using bitter halogen of salt lakes

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Embodiment

[0040] The method of utilizing salt lake bittern to prepare basic magnesium borate whiskers of the present embodiment may further comprise the steps:

[0041] S1. prepare basic magnesium borate whisker, and record data,

[0042] (1) Take 500 mL of bittern from Chaerhan Salt Lake, filter and discard the insoluble matter; the magnesium ion concentration is measured to be 2.63 mol / L;

[0043] (2) Prepare 0.900mol / L Na 2 B 4 o 7 the solution

[0044] (3) Add Na to bittern 2 CO 3 -NaHCO 3 Buffer volume 8mL, pH=(9.2±0.3). ;

[0045] (4) Take 100mL of the above-mentioned bittern solution, put it in a 1.00L beaker, and then slowly add Na 2 B 4 o 7 After adding 80 mL of the solution, put the mixed system in a water bath with a water temperature of 40°C to continue aging for 54 hours to obtain the basic magnesium borate whisker precursor;

[0046] (5) Put the generated basic magnesium borate whisker precursor into a hydrothermal reaction kettle, set the hydrothermal reaction...

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Abstract

The invention discloses a method for preparing basic magnesium borate whiskers by using bitter halogen of salt lakes. The method includes the following steps: step S1: a plurality of groups of experimental data of basic magnesium borate whiskers prepared from bitter brines in salt lakes are used to train PSO-optimized BP neural networks; the experimental data includes preparation parameters and experimental results, and the number of experimental data groups is greater than or equal to 100; step S2: the PSO-optimized BP neural networks trained in the step S1 can give optimized preparation parameters and predict the whisker ratio with the change of physical and chemical properties of the bitter brine in the salt lakes; and the optimized preparation parameters are adopted to prepare the basic magnesium borate whiskers. The PSO-optimized BP neural networks are used to digitalize the experimental data and provide an optimum experimental scheme for the production of the whiskers from the bitter halogen at any time and accurately predict experimental results, so that the waste of a large amount of manpower and material resources caused by groping experiments is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic materials, and more specifically, relates to a method for preparing basic magnesium borate whiskers by using salt lake bittern. Background technique [0002] In salt production, seawater or salt lake water is evaporated and concentrated by the sun in the salt field, and table salt is precipitated. When the brine reaches a certain concentration, the salt is no longer exposed to the sun, and the brine is called bittern. Bittern contains a large amount of magnesium ions, which is an excellent raw material for preparing magnesium salt whiskers. However, limited by the technical level, the utilization rate of bittern is less than 20%, and a large amount of bittern resources are discharged into the sea or circulated in salt pans, which not only causes waste of resources but also affects the ecological balance of offshore waters. Realizing the comprehensive utilization of bittern is an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06N3/00G06N3/04G06N3/08
CPCG06N3/006G06N3/084G16C20/10G16C20/70G06N3/045
Inventor 吴健松
Owner LINGNAN NORMAL UNIV
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