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A kind of method of producing calcium gluconate

A technology of calcium gluconate and gluconolactone, which is applied in the field of calcium gluconate production, can solve the problems of high cost, large equipment investment, and large environmental pollution, and achieve the effect of less equipment, low production cost, and few production processes

Active Publication Date: 2019-05-03
山东凯翔生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process line is long, the equipment investment is large, the environmental pollution is large, and the cost is high

Method used

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  • A kind of method of producing calcium gluconate
  • A kind of method of producing calcium gluconate
  • A kind of method of producing calcium gluconate

Examples

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Effect test

Embodiment 1

[0028] A kind of method for producing calcium gluconate of embodiment 1, concrete steps are as follows:

[0029] (1) Neutralization reaction

[0030] Add gluconolactone into the batching tank, and add pure water or condensed water at the same time, so that the mass fraction of the gluconolactone solution is 18.5%, pump the prepared gluconolactone solution into the neutralization barrel, and stir , slowly add CaCO during stirring 3 , open the steam valve of the neutralization tank, use the jacket of the neutralization tank to slowly raise the temperature, control the temperature to 83 ° C, keep warm for 26 minutes, and the pH is 7.0 to obtain a calcium gluconate solution.

[0031] (2) Decolorization and filtration

[0032] After the neutralization reaction finishes, add gac in neutralization barrel, add-on is 0.4% (mass fraction), stirs, and rotating speed is 30 rev / mins, and temperature is 83 ℃, decolouring 35 minutes, obtains calcium gluconate solution; Add perlite, diatom...

Embodiment 2

[0041] A kind of method for producing calcium gluconate of embodiment 2, concrete steps are as follows:

[0042] (1) Neutralization reaction

[0043] Add gluconolactone into the batching tank, and add pure water or condensed water at the same time, so that the mass fraction of the gluconolactone solution is 16%, pump the prepared gluconolactone solution into the neutralization barrel, and stir , slowly add Ca(OH) during stirring 2 , open the steam valve of the neutralization tank, use the jacket of the neutralization tank to slowly heat up, control the temperature to 80°C, keep warm for 28 minutes, and the pH is 6.5 to obtain a calcium gluconate solution.

[0044] (2) Decolorization and filtration

[0045] After the neutralization reaction finishes, add gac in neutralization barrel, add-on is 0.35% (mass fraction), stirs, and rotating speed is 25 rev / mins, and temperature is 84 ℃, decolouring 32 minutes, obtains calcium gluconate solution; Add perlite, diatomaceous earth an...

Embodiment 3

[0054] A kind of method for producing calcium gluconate of embodiment 3, concrete steps are as follows:

[0055] (1) Neutralization reaction

[0056] Add gluconolactone into the batching tank, and add pure water or condensed water at the same time, so that the mass fraction of gluconolactone solution is 20%, pump the prepared gluconolactone solution into the neutralization tank, and stir , slowly add CaCO during stirring 3 , open the steam valve of the neutralization tank, use the jacket of the neutralization tank to slowly heat up, control the temperature to 85°C, keep warm for 22 minutes, and the pH is 7.5 to obtain a calcium gluconate solution.

[0057] (2) Decolorization and filtration

[0058] After the neutralization reaction finishes, add activated carbon in the neutralization barrel, the addition is 0.45% (mass fraction), stir, and the rotating speed is 35 rev / mins, and temperature is 84 ℃, decolouring 38 minutes, obtains calcium gluconate solution; Add perlite, dia...

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Abstract

The invention relates to a method for producing calcium gluconate and a production device of the method. A neutralization reaction of gluconolactone and CaCO3 or Ca(OH)2 is included; decolorization and filtration of a calcium gluconate solution are performed; the calcium gluconate solution is subjected to spraying drying; and the dried calcium gluconate is packaged. The invention further includes the production device used by the method for producing the calcium gluconate. A size mixing tank is connected with a neutralization barrel through a pump; the neutralization barrel is connected with a plate-frame filter press through a material pump; a pre-coating tank is connected with the plate-frame filter press through a pre-coating pump; the plate-frame filter press is connected with the neutralization barrel and the pre-coating tank through backflow pipes; the plate-frame filter press is connected with a fine filter which is connected with a decolorization liquid storage tank; and the decolorization liquid storage tank is connected with a spraying drying device through a screw pump. The method is small in number of production working procedures and small in number of devices; compared with a traditional process, the working procedures of evaporation, crystallization, recrystallization and centrifugal separation are not needed; and no mother liquid is generated, and the one-time extraction yield can reach 99% or above.

Description

technical field [0001] The invention relates to a method for producing calcium gluconate and a production device thereof, belonging to the technical field of calcium gluconate preparation. Background technique [0002] At present, the domestic production methods of calcium gluconate mainly include fermentation method, enzymatic method, chemical oxidation method and electrolytic oxidation method. These methods all utilize starch or starch as raw material to make glucose solution by double enzyme method, or directly utilize crystallized glucose to make glucose solution, and then use glucose solution as raw material. [0003] When the fermentation method is adopted, the seeds of Aspergillus niger are used for cultivation, and the mature seed liquid is put into a fermenter to generate gluconic acid under aerobic conditions. by feeding CaCO 3 , control the pH, and finally generate calcium gluconate. After filtration, decolorization, evaporation, crystallization, recrystallizat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C51/41C07C51/42C07C51/47C07C59/105
CPCC07C51/412C07C51/42C07C51/47C07C59/105
Inventor 崔光水李贵伶陈晶
Owner 山东凯翔生物科技股份有限公司