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Copper-gluconate preparing method and copper gluconate prepared with method

A technology of copper gluconate and gluconolactone, applied in the field of copper gluconate, can solve the problems of high production cost, high product quality, high solubility of copper gluconate, temperature insensitivity, etc., and achieves good product quality, simple production equipment, and reduced Effect of Crystallization Cost

Inactive Publication Date: 2017-10-24
郑州瑞普生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is: in order to solve the high solubility of copper gluconate and insensitivity to temperature, difficult crystallization, the current production cost of copper gluconate using water alcohol method or concentrated crystallization is high and has a certain impact on product quality, the technology of low yield Problem, the invention provides a kind of copper gluconate preparation method

Method used

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  • Copper-gluconate preparing method and copper gluconate prepared with method

Examples

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Embodiment 1

[0029] In this embodiment, the parts by weight for preparing the copper gluconate raw material are: 1 part of copper nitrate; 1 part of potassium carbonate; 1.1 parts of basic copper carbonate; 1 part of gluconolactone.

[0030] Its preparation method comprises the following steps:

[0031] (1) When 1 part of copper nitrate is dissolved in 500 mL of water, heat it to 60° C. and stir the mixed solution for 1 hour, then filter the impurities to obtain a blue transparent copper nitrate solution.

[0032] (2) Dissolve 1 part of potassium carbonate in 250 mL of water and stir until completely dissolved to obtain potassium carbonate solution.

[0033] (3) The potassium carbonate solution was slowly added to the copper nitrate solution, heated to 60° C., and stirred for 1 hour to produce a light green precipitate.

[0034] (4) filter the light green precipitate, then disperse the light green precipitate in 600mL water, heat to 60°C, stir for 20 minutes, then filter and wash to obtai...

Embodiment 2

[0041] In this embodiment, the parts by weight for preparing the copper gluconate raw material are: 1 part of copper sulfate; 1.15 parts of sodium carbonate; 1.2 parts of basic copper carbonate; 1 part of gluconolactone.

[0042] Its preparation method comprises the following steps:

[0043] (1) When dissolving 1 part of copper sulfate in 500mL of water, heat it to 60°C while stirring the mixture for 1 hour, then filter the impurities to obtain a blue transparent copper sulfate solution.

[0044] (2) Dissolve 1.15 parts of sodium carbonate in 250 mL of water and stir until completely dissolved to obtain a sodium carbonate solution.

[0045] (3) The sodium carbonate solution was slowly added to the copper sulfate solution, heated to 60° C., and stirred for 1 hour to produce a light green precipitate.

[0046] (4) filter the light green precipitate, then disperse the light green precipitate in 600mL water, heat to 60°C, stir for 20 minutes, then filter and wash to obtain the pu...

Embodiment 3

[0053] In this embodiment, the parts by weight for preparing the copper gluconate raw material are: 1 part of copper nitrate; 1 part of sodium carbonate; 1.2 parts of basic copper carbonate; 1 part of gluconolactone.

[0054] Its preparation method comprises the following steps:

[0055] (1) When 1 part of copper nitrate is dissolved in 500 mL of water, heat it to 60° C. and stir the mixed solution for 1 hour, then filter the impurities to obtain a blue transparent copper nitrate solution.

[0056] (2) Dissolve 1 part of sodium carbonate in 250 mL of water and stir until completely dissolved to obtain a sodium carbonate solution.

[0057] (3) The sodium carbonate solution was slowly added to the copper nitrate solution, heated to 60° C., and stirred for 1 hour to produce a light green precipitate.

[0058](4) filter the light green precipitate, then disperse the light green precipitate in 600mL water, heat to 60°C, stir for 20 minutes, then filter and wash to obtain the purif...

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Abstract

The invention provides a copper-gluconate preparing method and copper gluconate prepared with the method, and relates to the field of nutrition enhancers and food additives. The preparing method includes the steps that basic cupric carbonate is added into a glucolactone solution, and the mixture is stirred to be subjected to standing and crystallized; a crystal is prepared with the semi-solid-phase crystallization method, the crystallization cost is greatly reduced, the crystallization yield is effectively increased, the quality of a product is good, the production device is simple, and energy consumption is low. By means of the copper-gluconate preparing method and the copper gluconate prepared with the method, the problems that the solubility of the copper gluconate is high, the temperature of the copper gluconate is not sensitive, crystallization is difficult, the water ethanol method or condensation crystallization for producing the copper gluconate at present is high in production cost, the certain influence on the quality of the product is generated, and the yield is low are solved.

Description

technical field [0001] The invention relates to the fields of nutrition enhancers and food additives, in particular to a method for preparing copper gluconate and copper gluconate prepared by the method. Background technique [0002] Copper is one of the essential trace elements for the human body. The human daily copper supply is about 3mg. The FAO / WHO Expert Committee on Food Additives (JECFA) evaluated copper gluconate as a copper supplement with "usefulness, safety, and necessity". At present, the United States, Japan and other countries have designated copper gluconate as a food fortifier allowed to be used, and as a treatment for copper deficiency. Relevant experts believe that trace copper exists in various enzymes in the body and constitutes the active factor of enzymes. Copper enzymes have very important physiological functions. For example, it can improve the biological oxidation function and metabolic function of tissue cells in the whole body, and increase the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/41C07C59/105
CPCC07C51/412C07C59/105
Inventor 陈礼宝班莹莹宋文超
Owner 郑州瑞普生物工程有限公司
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