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Magnesium acetate tetrahydrate and its preparation process and application

A preparation process, the technology of magnesium acetate, applied in the field of magnesium acetate tetrahydrate preparation, can solve the problems of high application cost and influence on promotion and application, and achieve the effect of low application cost, easy degradation, and good effect of market promotion and application

Active Publication Date: 2018-08-28
LAIZHOU LAIYU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the application of organic synthesis intermediates and feed additives, the application cost is slightly higher, which affects the promotion and application, and the market promotion still needs to be operated for a period of time

Method used

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  • Magnesium acetate tetrahydrate and its preparation process and application
  • Magnesium acetate tetrahydrate and its preparation process and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Synthesis: In a slurry tank filled with an appropriate amount of water, 390 kg of powdery light-burned magnesium oxide is dropped into, and stirred evenly. Then the slurry and 794kg of glacial acetic acid are dropped into the synthesis kettle, and the stirring is started. Among them: the molar ratio of light-burned magnesia and glacial acetic acid is 1:1.9. The content of magnesium oxide is 80%, and the content of glacial acetic acid is 98%.

[0040] (2) Reaction: After the feeding is completed, the reaction is exothermic, and the reaction temperature is maintained at 80-90° C., and the temperature is kept for 2-3 hours. The control reaction end point is that the pH value is between 6-7, and the Baume degree is between 15-16°Bé.

[0041] (3) Pressure filtration: filter the reacted feed liquid through a plate and frame filter press to obtain a filtrate. The filter residue obtained after pressure filtration is used to prepare soil conditioner.

[0042] (4) Scraper...

Embodiment 2

[0049] (1) Synthesis: Add 405Kg of powdery light-burned magnesium oxide to a slurry tank filled with an appropriate amount of water, and stir evenly. Then the slurry and 868kg of glacial acetic acid are dropped into the synthesis kettle, and the stirring is started. Among them: the molar ratio of light-burned magnesia and glacial acetic acid is 1:2. The content of magnesium oxide is 80%, and the content of glacial acetic acid is 98%.

[0050] (2) Controlling the reaction: After the feeding is completed, the reaction is exothermic, and the reaction temperature is kept at 80-90° C., and the temperature is kept for 2-3 hours. The control reaction end point is that the pH value is between 6-7, and the Baume degree is between 15-16°Bé.

[0051] (3) Pressure filtration: filter the reacted feed liquid through a plate and frame filter press to obtain a filtrate. The filter residue obtained after pressure filtration is used to prepare soil conditioner.

[0052] (4) Scraper evaporat...

Embodiment 3

[0059] (1) Synthesis: In a slurry tank filled with an appropriate amount of water, put 440 kg of powdery light-burned magnesium oxide into it, and stir evenly. Then the slurry and 990kg of glacial acetic acid are dropped into the synthesis kettle, and the stirring is started. Among them: the molar ratio of light-burned magnesia and glacial acetic acid is 1:2.1. The content of magnesium oxide is 80%, and the content of glacial acetic acid is 98%.

[0060] (2) Controlling the reaction: After the feeding is completed, the reaction is exothermic, and the reaction temperature is kept at 80-90° C., and the temperature is kept for 2-3 hours. The control reaction end point is that the pH value is between 6-7, and the Baume degree is between 15-16°Bé.

[0061] (3) Pressure filtration: filter the reacted feed liquid through a plate and frame filter press to obtain a filtrate. The filter residue obtained after pressure filtration is used to prepare soil conditioner.

[0062] (4) Scra...

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Abstract

The invention discloses magnesium acetate tetrahydrate, a process for preparing the same and application of the magnesium acetate tetrahydrate. The process includes steps of synthesis, reaction, pressure filtration, concentration, re-concentration, crystallization, centrifugal discharging, drying and packaging. The magnesium acetate tetrahydrate, the process and the application have the advantages that concentration is divided into two portions, accordingly, energy can be saved, the process is high in efficiency and is simple, procedures are easy to control, raw materials for the magnesium acetate tetrahydrate are low in cost and are easily available, and the magnesium acetate tetrahydrate is low in production cost; the magnesium acetate tetrahydrate prepared by the aid of the process is a white crystal in appearance and is stable in quality; a molecular formula of the magnesium acetate tetrahydrate is C4H14O8Mg, the molecular weight of the magnesium acetate tetrahydrate is 214.46, the density of the magnesium acetate tetrahydrate is 0.8 g / l, and the melting point of the magnesium acetate tetrahydrate is 72-80 DEG C; the content of the magnesium acetate tetrahydrate is higher than 98%, the content of chlorine is 320-350 ppm, and a pH (potential of hydrogen) value of the magnesium acetate tetrahydrate is stable and keeps ranging from 7 to 9; the magnesium acetate tetrahydrate can be used for feed additives, cosmetics, catalysts and organic synthesis intermediates, can be applied to preparing magnesium uranyl acetate for measuring sodium and can be applied to the aspects of deodorization, sterilization, preservatives, textile dyeing, eosin staining, nigrosine immobilizing and the like.

Description

technical field [0001] The invention relates to the technical field of preparing magnesium acetate tetrahydrate, in particular to a magnesium acetate tetrahydrate and its preparation process and application. Background technique [0002] For a long time, magnesium resources are mainly used to produce refractory materials and inorganic chemical products with low added value, and their application range is narrow. At present, there are still many scientific research institutions devoted to the synthesis and application research of organomagnesium compounds. Among them, magnesium acetate is an important generalized metal magnesium organic compound. Common magnesium acetate has two states: one is anhydrous magnesium acetate, and the other is magnesium acetate tetrahydrate with crystal water. Magnesium acetate tetrahydrate is an easy-to-synthesize metal-organic compound with high purity, low cost and high added value. At the same time, because it has good water solubility, is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C51/42C07C51/43C07C53/10
CPCC07B2200/13C07C51/412C07C51/42C07C51/43C07C53/10
Inventor 姜升林王华静阚昭东卢晓东孙占权
Owner LAIZHOU LAIYU CHEM CO LTD
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