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Double-salt sodium ammonium borate and preparation method thereof

A double-salt sodium borate and boric acid technology, which is applied in the field of borate, can solve the problems of low processing cost and weak international competitiveness of the borate market, and achieve the effect of improving competitiveness

Inactive Publication Date: 2017-07-28
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Relying on their absolute advantages in borate resources and low processing costs, foreign companies have strong competitiveness in the international market and almost monopolize the world borate market. Therefore, the domestic borate market is under international competition. relatively weak

Method used

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  • Double-salt sodium ammonium borate and preparation method thereof
  • Double-salt sodium ammonium borate and preparation method thereof
  • Double-salt sodium ammonium borate and preparation method thereof

Examples

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preparation example Construction

[0031] The present invention also provides a kind of preparation method of above-mentioned double salt sodium ammonium borate, comprises the following steps:

[0032] A) Boron compounds, organic amine compounds, sodium hydroxide and water are mixed, and heating reaction is carried out under airtight conditions;

[0033] B) the reaction product is cooled, washed and dried to obtain the double salt sodium ammonium borate.

[0034] In the present invention, boron compounds, organic amine compounds, sodium hydroxide and water are firstly mixed to obtain a mixed solution. Wherein, the molar ratio of the boron compound, sodium hydroxide, organic amine compound and water is (1~20):(0.58~29):(10.37~103.70):(76.90~769.00), in the present invention In some embodiments, the molar ratio of the boron compound, sodium hydroxide, organic amine compound and water is 1:0.58:10.37:76.9; in other embodiments of the present invention, the boron compound, hydrogen The molar ratio of sodium oxide...

Embodiment 1

[0045] Weigh boron oxide (B 2 o 3 ), sodium hydroxide (NaOH), ethylenediamine (C 2 h 8 N 2 ) and distilled water (H 2 O), after stirring for 1 to 20 minutes, put it into a closed reaction kettle, react at a constant temperature of 180°C for 7 days, then take it out and cool it to room temperature naturally, wash with distilled water, and dry naturally to obtain double salt sodium ammonium borate massive transparent crystals.

[0046] Through X-ray single crystal diffraction analysis, it is determined that the above-mentioned massive transparent crystal is a pure phase, and the results are shown in figure 1 , figure 1 For the XRD figure of the double salt sodium ammonium borate crystal form provided by the present invention, figure 1 Among them, 1 is the compound Na 1.33 (NH 4 ) 0.67 B 4 o 5 (OH) 4 ·(H 2 O) 2 The simulated XRD curve of , 2 is the compound Na prepared by the present invention 1.33 (NH 4 ) 0.67 B 4 o 5 (OH) 4 ·(H 2 O) 2 The actual test XRD c...

Embodiment 2

[0055] Carry out the preparation of double salt sodium ammonium borate crystal form according to the method for embodiment 1, only change boron oxide (B 2 o 3 ), sodium hydroxide (NaOH), ethylenediamine (C 2 h 8 N 2 ) and homemade distilled water (H 2 O) the molar ratio is 10:2.9:40.37:153.8.

[0056] According to the test method of Example 1, the double salt sodium ammonium borate crystal form prepared above was tested, and it had the same test results as in Example 1.

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Abstract

The invention provides double-salt sodium ammonium borate. The molecular formula is Na1.33(NH4)0.67B4O5(OH)4.(H2O)2. The double-salt sodium ammonium borate has the advantages that the double-salt sodium ammonium borate is new borate which enriches the borate market, the international competitiveness of the domestic borate market is increased, sodium ions and ammonium ions coexist in the double-salt sodium ammonium borate, the double-salt sodium ammonium borate has the double application values of sodium borate and ammonium borate, and the double-salt sodium ammonium borate is widely applicable to industry such as glass industry, enamel ceramic industry, metallurgical industry, light industry, daily-use chemical industry, mechanical and electronic industry, medicine industry, agriculture and textile industry.

Description

technical field [0001] The invention belongs to the technical field of borates, in particular to a double salt sodium ammonium borate and a preparation method thereof. Background technique [0002] Borate is an important class of chemical raw materials, mainly used in glass industry, enamel ceramic industry, metallurgical industry, light industry and daily chemical industry, mechanical and electronic industry, pharmaceutical industry, agriculture and textile industry and other industries. For example: ammonium borate is mainly used in fire prevention of wood and fabrics, capacitor materials, herbicides and pharmaceutical industry, and sodium borate can enhance the ultraviolet transmittance of glass. Specifically, the wide application of borate in industry has the following aspects: [0003] (1) Glass industry: It can improve the thermal expansion of glass, improve temperature resistance, pressure resistance and light transmittance, and shorten the melting time at the same t...

Claims

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Application Information

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IPC IPC(8): C01B35/18
CPCC01B35/128C01P2002/72C01P2002/77C01P2002/82C01P2002/88
Inventor 潘春阳吴东阳罗元章李军赵丰华
Owner GUANGDONG UNIV OF TECH
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