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Method for further extracting calcium gluconate from waste liquid of calcium gluconate crystallization

A technology of calcium gluconate and waste liquid, which is applied in the field of calcium gluconate purification, can solve the problems of lack of effective methods for extracting calcium gluconate, the reduction of calcium gluconate acquisition, and the pollution of the environment by calcium gluconate, so as to improve the purity of crystal acquisition , effective cleaning, good effect of the preparation method

Pending Publication Date: 2021-09-17
江西益佰年药业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing calcium gluconate crystallization waste liquid is usually not specially treated after processing and production. There are many impurities and calcium gluconate remaining in the waste liquid. With the discharge treatment, the calcium gluconate acquisition is reduced, and It is rich in impurities and mixed with some calcium gluconate, which will pollute the environment as it is discharged, the quality of wastewater treatment is insufficient, the treatment effect is not good, and there is no effective way to further extract calcium gluconate

Method used

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Embodiment Construction

[0025] Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The invention provides a technical scheme: a method for further extracting calcium gluconate from calcium gluconate crystallization waste liquid, comprising the following steps;

[0027] Step 1: Filter the impurities in the mixed solution

[0028] Centrally collect the waste liquid, use the collection box to transfer and store the waste liquid, install a water pump to pump the waste liquid out, and arrange the filter box so that a 0.45 μm filter membrane is installed in the inlet of the filter box, and the water pump is used to pump the filter membrane Feed the waste liquid, so that the fine impurities in the waste liquid are filtered, and the calcium gluconate dissolved in the waste liquid passes through and mixes in the filtered solution.

[0029] The...

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PUM

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Abstract

The invention discloses a method for further extracting calcium gluconate from waste liquid of calcium gluconate crystallization. The method comprises the following operation step: 1, filtering impurities in a mixed solution, intensively collecting waste liquid, transferring and storing the waste liquid by adopting a collecting box, sucking and pumping out the waste liquid by installing a water pump, arranging a filter box, installing a filter membrane with a size of 0.45 [mu]m in an inlet of the filter box, and pumping the waste liquid to the filter membrane by adopting the water pump so as to filter fine impurities in the waste liquid. According to the invention, the filter membrane with a size of 0.45 [mu]m is adopted to perform filtration with different effects in two steps, so impurities in the waste liquid are effectively cleaned, and the purity of obtained crystals is improved during subsequent acquisition; a cold water jacket is matched for use to realize coloring precipitation, so the precipitation of large-capacity calcium gluconate crystals is improved, and preparation efficiency is improved; when calcium gluconate is to be acquired, atomized magnesium chloride neutral salt is added, cleaning is easy, and the purity of obtained calcium gluconate crystals is improved; and the preparation method is good.

Description

technical field [0001] The invention relates to the technical field of calcium gluconate purification, in particular to a method for further extracting calcium gluconate from calcium gluconate crystallization waste liquid. Background technique [0002] Calcium gluconate is the calcium salt of gluconic acid, the molecular formula is C12H22CaO14 H2O, the molecular weight is 448.40, the melting point is 201°C, it is white crystal or powder, odorless and tasteless, soluble in cold water, easily soluble in hot water, insoluble In absolute ethanol, chloroform or ether. Calcium gluconate is an important organic calcium. It is clinically used as a calcium supplement and is also a raw material for the production of other gluconate (zinc gluconate, iron gluconate, etc.) export product. [0003] The methods for preparing calcium gluconate mainly include chemical method and fermentation method, wherein the process flow of fermentation method is as follows: [0004] (1) Saccharificati...

Claims

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Application Information

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IPC IPC(8): C07C51/42C07C51/43C07C59/105
CPCC07C51/42C07C51/43C07C59/105
Inventor 郭书淋
Owner 江西益佰年药业股份有限公司