Method for preparing disodium octaborate tetrahydrate

A technology of disodium octaborate tetrahydrate and disodium octaborate, which is applied in the field of preparation of chemical substances, can solve the problems of inability to prepare disodium octaborate tetrahydrate, improper selection and proportioning, and low content of disodium octaborate tetrahydrate And other issues

Inactive Publication Date: 2014-01-29
张洪卫
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Problems solved by technology

[0003] But the preparation method of my country's existing disodium tetrahydrate octaborate, because the selection of reactant and proportioning are unsui

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  • Method for preparing disodium octaborate tetrahydrate
  • Method for preparing disodium octaborate tetrahydrate
  • Method for preparing disodium octaborate tetrahydrate

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Due to the preparation method of the existing disodium tetrahydrate octaborate in my country, due to the improper selection and proportioning of reactants, the content of disodium tetrahydrate octaborate in the reaction product is relatively low, and even octaboric acid tetrahydrate cannot be prepared at all. Disodium, therefore this embodiment has adjusted the reactant and its proportioning ratio in the original preparation method of disodium tetrahydrate octaborate, can improve the content of disodium tetrahydrate octaborate in the reaction product, solve the problem of disodium tetrahydrate octaborate In terms of agriculture and industry, it is subject to the current situation of import restrictions.

[0017] Such as figure 1 As shown in step 101, take 30-35 parts by weight of boric acid and 35-40 parts by weight of borax pen...

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Abstract

The invention discloses a method for preparing disodium octaborate tetrahydrate. The method comprises the steps: mixing 30-35 parts by weight of boric acid and 35-40 parts by weight of borax pentahydrate, then, adding 10-15 parts by weight of water, heating to the temperature of 110-130 DEG C for dissolving, and carrying out heat-preserved reaction for 40-60 minutes; carrying out solid-water separation on reactants, so as to obtain solid particles; removing gas from the solid particles; processing the solid particles until the particle size is 300 meshes, thereby preparing disodium octaborate tetrahydrate. According to the method, through adjusting the reactants and the proportioning ratio thereof, the content of disodium octaborate tetrahydrate of a reaction product can be increased, so that the current situation that disodium octaborate tetrahydrate is enslaved to import restrictions in the aspects of agriculture and industry is solved.

Description

technical field [0001] The invention relates to a preparation method of a chemical substance, in particular to a preparation method of disodium octaborate tetrahydrate. Background technique [0002] In my country, disodium octaborate tetrahydrate is widely used in agriculture and industry. In terms of agriculture, since boron is one of the essential nutrients for plant growth, it plays a very important role in plant growth and development. The application of boron fertilizer can effectively supplement boron and solve the phenomenon that crops are flowery but not real. Eight boric acid tetrahydrate The aqueous solution of disodium is neutral, can be mixed with almost all pesticides, and can be directly used for foliar spraying. It has the advantages of good water solubility, low dosage, high plant absorption and utilization rate, and less soil residue, which has played a role in promoting high agricultural production. positive effects. In terms of industry, because the pH v...

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Application Information

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IPC IPC(8): C01B35/12
Inventor 张洪卫
Owner 张洪卫
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