CN102875363A - Production technology of low-lead calcium citrate - Google Patents
Production technology of low-lead calcium citrate Download PDFInfo
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- CN102875363A CN102875363A CN201210439091XA CN201210439091A CN102875363A CN 102875363 A CN102875363 A CN 102875363A CN 201210439091X A CN201210439091X A CN 201210439091XA CN 201210439091 A CN201210439091 A CN 201210439091A CN 102875363 A CN102875363 A CN 102875363A
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- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a production technology of low-lead calcium citrate. The production technology comprises the steps as follows: using water, citric acid and calcium carbonate as raw materials; adding a deleading agent for carrying out neutralization reaction; and then crystallizing, baking, crushing, inspecting, packing, and storing into the warehouse. The production technology disclosed by the invention has the advantages that the content of calcium citrate produced by the production technology is over 99.5%, and the content of fluorine is less than 30ppm, the content of lead is less than 1ppm, and the content of the heavy metal is less than 5ppm; and the product is safe and reliable, and the performance meets USP-29 standard.
Description
Technical field
The present invention relates to a kind of production technique of low plumbous citrate of lime.
Background technology
Citrate of lime, the white crystals sprills, slightly have water absorbability at odorless, are slightly soluble in water, can be dissolved in acid, are dissolved in hardly ethanol.Citrate of lime can be used for field of food, is commonly used for calcium fortified dose, sequestrant, buffer reagent and tissue coagulation agent etc., and is gentle because of its taste, calcium contents is high especially as calcium fortified dose, often inserts in infant formula, beverage, cow's milk and the various healthcare products.Yet foodstuffs industry is very strict to the requirement of raw material, and the lead tolerance of citrate of lime becomes unique factor of its application of restriction.
Summary of the invention
The production technique that the objective of the invention is a kind of low plumbous citrate of lime.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of production technique of low plumbous citrate of lime is characterized in that may further comprise the steps:
(1) take water, citric acid and calcium carbonate as raw material, and add deleading agent, carry out neutralization reaction, temperature of reaction is 95-105 ℃, and reaction 2h finishes;
(2) regulate mentioned solution pH to 7.5-8.0, crystallization, after centrifugal solid;
(3) with the oven dry of the solid after centrifugal, temperature is controlled at 110-120 ℃, comminuted solids, check, packing warehouse-in.
Further, the mass ratio of water, citric acid and calcium carbonate is described in the step (1): 100:29:21, the volume ratio of described water and deleading agent is: 2:3.
Further, centrifugal rear solid moisture content is controlled in the 10-13.4% scope described in the step (3), and the described solid order number that shatters is the 100-250 order.
The invention has the advantages that: according to the citrate of lime that the present invention produces, content reaches more than 99.5%, and fluorine content is less than 30ppm, and lead content is less than 1ppm, and heavy metal is less than 5ppm, and product safety is reliable, and performance meets the USP-29 standard.
Embodiment
In order to make the public can fully understand technical spirit of the present invention and beneficial effect; applicant below embodiment describes in detail; but the applicant is not restriction to technical scheme to the description of embodiment, anyly makes form and immaterial variation all should be considered as protection scope of the present invention according to the present invention's design.
A kind of production technique of low plumbous citrate of lime may further comprise the steps:
(1) 200g water, 58g citric acid and 42g calcium carbonate raw material are mixed, and add the 300ml deleading agent, carry out neutralization reaction, temperature of reaction is 95-105 ℃, and reaction 2h finishes;
(2) regulate mentioned solution pH to 7.5-8.0, crystallization, after centrifugal solid;
(3) with the oven dry of the solid after centrifugal, temperature is controlled at 110-120 ℃, and moisture control is at 10-13.4%, and comminuted solids, order number are the 100-250 order, check, packing warehouse-in.
With above-mentioned citrate of lime product with do not add deleading agent gained citrate of lime product and carry out Performance Ratio, and with reference to the USP29/FCCIV standard, its result is as follows:
As seen from the above table, add the citrate of lime that a kind of deleading agent is produced according to the present invention, lead content reaches the USP29/FCCIV standard, and this technique can solve the problem that lead exceeds standard.
Claims (3)
1. the production technique of one kind low plumbous citrate of lime is characterized in that may further comprise the steps:
(1) take water, citric acid and calcium carbonate as raw material, and add deleading agent, carry out neutralization reaction, temperature of reaction is 95-105 ℃, and reaction 2h finishes;
(2) regulate mentioned solution pH to 7.5-8.0, crystallization, after centrifugal solid;
(3) with the oven dry of the solid after centrifugal, temperature is controlled at 110-120 ℃, comminuted solids, check, packing warehouse-in.
2. the production technique of a kind of low plumbous citrate of lime according to claim 1, it is characterized in that: the mass ratio of water, citric acid and calcium carbonate is described in the step (1): 100:29:21, the volume ratio of described water and deleading agent is: 2:3.
3. the production technique of a kind of low plumbous citrate of lime according to claim 1, it is characterized in that: centrifugal rear solid moisture content is controlled in the 10-13.4% scope described in the step (3), and the described solid order number that shatters is the 100-250 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210439091XA CN102875363A (en) | 2012-11-07 | 2012-11-07 | Production technology of low-lead calcium citrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210439091XA CN102875363A (en) | 2012-11-07 | 2012-11-07 | Production technology of low-lead calcium citrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102875363A true CN102875363A (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210439091XA Pending CN102875363A (en) | 2012-11-07 | 2012-11-07 | Production technology of low-lead calcium citrate |
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| CN (1) | CN102875363A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2703719C1 (en) * | 2018-04-18 | 2019-10-22 | Федеральное государственное бюджетное научное учреждение "Поволжский научно-исследовательский институт производства и переработки мясомолочной продукции" (ГНУ НИИММП) | Method of producing calcium citrate |
| CN112661628A (en) * | 2020-12-23 | 2021-04-16 | 南通励成生物工程有限公司 | Method for removing lead and mercury in calcium citrate synthesis process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348431A (en) * | 2007-07-20 | 2009-01-21 | 南通市飞宇精细化学品有限公司 | Method for producing low-lead light-density granular calcium citrate |
| CN101591234A (en) * | 2008-05-26 | 2009-12-02 | 南通市飞宇精细化学品有限公司 | Method for producing magnesium citrate |
-
2012
- 2012-11-07 CN CN201210439091XA patent/CN102875363A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348431A (en) * | 2007-07-20 | 2009-01-21 | 南通市飞宇精细化学品有限公司 | Method for producing low-lead light-density granular calcium citrate |
| CN101591234A (en) * | 2008-05-26 | 2009-12-02 | 南通市飞宇精细化学品有限公司 | Method for producing magnesium citrate |
Non-Patent Citations (1)
| Title |
|---|
| 唐新军等: "柠檬酸钙的合成研究进展", 《广东化工》, vol. 37, no. 212, 31 December 2010 (2010-12-31), pages 81 - 63 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2703719C1 (en) * | 2018-04-18 | 2019-10-22 | Федеральное государственное бюджетное научное учреждение "Поволжский научно-исследовательский институт производства и переработки мясомолочной продукции" (ГНУ НИИММП) | Method of producing calcium citrate |
| CN112661628A (en) * | 2020-12-23 | 2021-04-16 | 南通励成生物工程有限公司 | Method for removing lead and mercury in calcium citrate synthesis process |
| CN112661628B (en) * | 2020-12-23 | 2023-08-15 | 南通励成生物工程有限公司 | Lead mercury removal method in calcium citrate synthesis process |
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Application publication date: 20130116 |