A kind of production technology of boron citrate
A technology of boron citrate and production process, applied in the separation/purification of carboxylic acid compound, preparation of carboxylate, preparation of carboxylate, etc., can solve problems such as unpublished patent, inability to obtain boron citrate, etc., To achieve the effect of simple process
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Embodiment 1
[0016] A kind of production technique of boron citrate, specifically comprises the steps:
[0017] a. Dehydrate boric acid at 220°C to make boron oxide;
[0018] b. Dissolve food-grade citric acid in water to form a citric acid aqueous solution with a concentration of 40%, and heat it to above 60°C;
[0019] c. Slowly add the boron oxide prepared in step a to the citric acid aqueous solution in step b to carry out neutralization reaction to generate boron citrate, and control the pH value of the reaction solution to 4;
[0020] d. The boron citrate prepared in step c is concentrated, cooled and crystallized, then poured into a blender and stirred for 25 minutes, and then put into a centrifugal dehydrator for centrifugal dehydration;
[0021] e. Send the dehydrated boron citrate into a drying oven at 85°C for 90 minutes to obtain boron citrate.
Embodiment 2
[0023] A kind of production technique of boron citrate, specifically comprises the steps:
[0024] a. Dehydrate boric acid at 240°C to produce boron oxide;
[0025] b. Dissolve food-grade citric acid in water to form a citric acid aqueous solution with a concentration of 45%, and heat it to above 60°C;
[0026] c. Slowly add the boron oxide prepared in step a to the citric acid aqueous solution in step b to carry out neutralization reaction to generate boron citrate, and control the pH value of the reaction solution to 7;
[0027] d. The boron citrate prepared in step c is concentrated, cooled and crystallized, then poured into a blender and stirred for 30 minutes, and then put into a centrifugal dehydrator for centrifugal dehydration;
[0028] e. Send the dehydrated boron citrate into a drying oven at 90°C for 95 minutes to obtain boron citrate.
Embodiment 3
[0030] A kind of production technique of boron citrate, specifically comprises the steps:
[0031] a. Dehydrate boric acid at 260°C to make boron oxide;
[0032] b. Dissolve food-grade citric acid in water to form a citric acid aqueous solution with a concentration of 50%, and heat it to above 60°C;
[0033] c. Slowly add the boron oxide prepared in step a to the citric acid aqueous solution in step b to carry out neutralization reaction to generate boron citrate, and control the pH value of the reaction solution to 8;
[0034] d. The boron citrate prepared in step c is concentrated, cooled and crystallized, then poured into a blender and stirred for 35 minutes, and then put into a centrifugal dehydrator for centrifugal dehydration;
[0035] e. Send the dehydrated boron citrate into a drying oven at 95°C for 100 minutes to obtain boron citrate.
[0036] Above-mentioned 3 embodiments all obtain product quality index and be:
[0037] Boron content 36~37.8%
[0038] Loss...
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