CN1075469C - Production of manganese sulfate as food additive - Google Patents
Production of manganese sulfate as food additive Download PDFInfo
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- CN1075469C CN1075469C CN98112304A CN98112304A CN1075469C CN 1075469 C CN1075469 C CN 1075469C CN 98112304 A CN98112304 A CN 98112304A CN 98112304 A CN98112304 A CN 98112304A CN 1075469 C CN1075469 C CN 1075469C
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Abstract
The present invention relates to a production technique for preparing manganese sulphate as a food additive, which adopts the powder of manganese dioxide, sulphuric acid, coal powder and an impurity removing agent in a trace amount as raw materials, and the manganese sulphate is prepared in the technological processes of proportioning the raw materials, calcining the raw materials, combining the raw materials, pressing an obtained compound for filtration, removing impurities, pressing the compound for filtration for a second time, leaching the compound for precipitation, concentrating the leaching liquid of the compound, drying the compound, pulverizing products, testing the products, filling the products in sacks, putting the products in a warehouse, etc. The prepared manganese sulphate as the food additive in the manufacturing technique has extremely low contents of heavy metals, toxic substances and water insoluble matters, and the main performances of the manganese sulphate are in accordance with or even superior to the requirements of all indices proposed by a food chemistry pharmacopoeia (1996 version) of FCC of US; the present invention which achieves the advanced stage of international fellow industries has good social benefits and economic benefits.
Description
The invention relates to a method for producing and preparing sulfate in the field of inorganic chemistry, in particular to a process for producing manganese sulfate as a food additive.
As is well known, industrial manganese sulfate is an important inorganic chemical product and has wide application in industrial and agricultural production and scientific research. However, manganese sulfate meeting the food grade standard can be used as a food additive and a nutritional agent, which is rarely known in China, and the product is mainly used for supplementing manganese elements required by human bodies in the international market and has the functions of regulating the functions of the human bodies, perfecting and supplementing the needs of human health and promoting the healthy development of the human bodies. At present, the ternary production enterprises with no national standard, no practical standard and no practical standard exist in China. According to market research, foreign merchants demand goods from China, but the goods are not supplied in China market, so that the requirements of foreign merchants cannot be met. Manganese elements required by food produced in China are obtained from food-grade manganese sulfate imported from international markets or other substance ways.
Aiming at the actual needs, the invention aims to provide a production process method for preparing the food additive manganese sulfate, and the performance index of the food additive manganese sulfate product prepared by the production process reaches the advanced level of the food-grade manganese sulfate in the same international industry.
The solution of the production process of the invention is realized by the following specific steps. Manganese dioxide powder, sulfuric acid, coal powder and a trace amount of impurity removing agent are used as raw materials, the coal powder is added into the manganese dioxide powder according to a proportion for blending, and the mixture is fully and uniformly stirred; feeding the prepared material into a calcining furnace for calcining for a period of time, then discharging the material into a barrel, and carrying out wet water sealing and oxidation; adding the calcined material into a pool, adding water, stirring uniformly to form slurry, beating into a combination barrel, adding sulfuric acid according to a proportion, introducing high-temperature water vaporsimultaneously, and carrying out a combination reaction to generate a mixed liquid containing manganese sulfate; sending the mixed concentrated solution containing manganese sulfate to a filter press for filter pressing, removing waste residues, and allowing the concentrated solution to enter a pool; pumping the refined liquid obtained after filter pressing into a stainless steel barrel, adding a trace amount of impurity removing agent, introducing high-temperature water vapor, fully stirring, and decomposing and removing heavy metals and toxic substances contained in the refined liquid; feeding the purified semen water into a filter press for secondary filter pressing, removing all waste residues, and feeding the filter-pressed semen water into a pool; sending the semen water into a stainless steel barrel, leaching and precipitating with river sandstone for multiple times to reduce the content of water insoluble substances; pumping the leached material liquid into a concentration barrel for concentration, boiling with high-temperature water vapor to reach the crystallization degree of manganese sulfate, and drying; feeding the dried wet powder into a drying furnace for drying; crushing the dried powder; performing quality inspection on the crushed powdered food additive manganese sulfate product; and packaging and warehousing the finished product of the food additive manganese sulfate qualified in quality inspection.
The food additive manganese sulfate product prepared by the production process is detected by Tianjin chemical research institute of inorganic salt product standardization technology of China Ministry of chemical industry, conforms to the technical index requirements of manganese sulfate as a food additive in American FCC (96-year version) chemical pharmacopoeia, and reaches the advanced level of international and the same industries. After the product is put on the market, a new member is added for the team of the domestic food additive product and participates in the competition of the international market, so that foreign exchange can be saved and created for the country and benefit can be created for enterprises. Meanwhile, as a food additive and a nutrient which can provide healthy manganese element for human bodies, the manganese element is popular with a plurality of food production users and consumers when being put on the market.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a schematic block diagram of a production process of the method of the present invention;
FIG. 2 is a table showing the data reported after the analytical measurement of the manganese sulfate product as a food additive prepared by the production process of the present invention.
Referring to fig. 1, the production process of the present invention is further detailed as follows, in conjunction with the relevant examples:
1. preparing materials: manganese dioxide powder, sulfuric acid, coal powder and a trace amount of impurity removing agent are used as raw materials, the coal powder is added into the manganese dioxide powder according to a proportion for blending, and the mixture is fully and uniformly stirred. The formula data of a preferred raw material is as follows: 56% of manganese dioxide powder, 30% of sulfuric acid, 14% of coal powder, and trace impurity removing agents, such as 800 kg of manganese dioxide powder, 431 kg of sulfuric acid, 200 kg of coal powder and trace impurity removing agents.
2. And (3) calcining: and (3) feeding the prepared material into a calcining furnace for calcining for a period of time, discharging the material into a barrel to perform wet watersealing and oxidation after the calcining effect is achieved. One embodiment is: the temperature of the calcining furnace is about 1200 ℃, and the calcining time is three hours. Adding carbon powder into manganese dioxide powder, calcining at high temperature, and converting to generate an intermediate product manganese monoxide:
3. combining: adding the calcined material into a pool, adding water, stirring uniformly to form slurry, beating into a combination barrel, adding sulfuric acid according to a proportion, introducing high-temperature water vapor simultaneously, and carrying out a combination reaction to generate a mixed liquid containing manganese sulfate. Adding sulfuric acid into the intermediate product manganese monoxide for heating, and carrying out chemical reaction to generate manganese sulfate:
4. and (3) filter pressing: and (3) feeding the combined manganese sulfate-containing mixed concentrated solution into a filter press for filter pressing, removing all waste residues, and feeding the filtered concentrated solution into a pool.
5. Removing impurities: pumping the refined liquid obtained after filter pressing into a stainless steel barrel, adding a trace amount of sodium diethyldithiocarbamate serving as an impurity removing agent, introducing high-temperature water vapor, fully stirring, decomposing and removing heavy metals and toxic substances contained in the refined liquid, and reducing the content of the heavy metals and the toxic substances to an optimal level. The impurity removing agent can also adopt other raw materials instead of the sodium diethyldithiocarbamate. The impurity removing process is a new and specially added process compared with the production process of feed-grade and industrial-grade manganese sulfate.
6. Secondary filter pressing: and (3) feeding the refined liquid after impurity removal into a filter press for secondary filter pressing, removing all slag, and feeding the filtered refined liquid into a pool.
7. Leaching and precipitating: sending the semen water into a stainless steel barrel, leaching and precipitating with river sandstone for multiple times to reduce the content of water insoluble substances. The process is specially designed for reducing the index of reducing the water insoluble substance and further improving the quality and purity of the product. The effect of the method ensures that the semen water reaches the ideal required degree, and compared with the standard of feed-grade manganese sulfate, the water-insoluble substance is reduced by sixty-four percent.
8. Concentration: and pumping the leached material liquid into a concentration barrel for concentration, boiling with high-temperature water vapor to reach the crystallization degree of manganese sulfate, and drying.
9. Drying: feeding the dry wet powder into a stainless steel drying furnace for co-drying;
10. crushing: and crushing and screening the dried powder.
11. And (4) checking: and (4) performing quality inspection on the crushed powdered food additive manganese sulfate product.
12. Packaging and warehousing: and packaging and warehousing the qualified finished product of the food additive manganese sulfate product.
See fig. 2. The data report table is extracted from a detection analysis report sheet of inorganic salt product standardization technology returning unit Tianjin chemical research institute of China Ministry of chemical industry, five indexes in the column of index are the technical index requirements of food additive manganese sulfate according to American FCC (96 years 'edition) food chemical pharmacopoeia, and the column of analysis result is the analysis result of a food additive manganese sulfate sample produced by the process, and the data comparison in the table shows that five index items of the sample to be detected meet or even exceed the index requirements of American FCC (96 years' edition) return, and particularly, the content of lead (Pb) is reduced by one time and the content of selenium (Se) is reduced by twenty-nine times compared with the American indexes. It can also be seen from the table that the arsenic (As) content of the samples to be tested is also extremely low; in order to improve the product quality, the inspection sample is also specially added with strict control indexes of water insoluble substances, the analysis result is 0.018 percent, and compared with the Chinese national standard of feed-grade manganese sulfate products, the analysis result is reduced by 64 percent.
Claims (2)
1. A production process for preparing food additive manganese sulfate is characterized in that: manganese dioxide powder, sulfuric acid, coal powder and trace sodium diethyldithiocarbamate are used as raw materials, and the formula proportion of the raw materials is as follows: 56% of manganese dioxide powder, 30% of sulfuric acid, 14% of coal powder and trace sodium diethyldithiocarbamate; firstly, adding coal powder into manganese dioxide powder according to a proportion for blending, and fully and uniformly stirring; feeding the prepared material into a calcining furnace for calcining for a period of time, then discharging the material into a barrel, and carrying out wet water sealing and oxidation; adding the calcined material into a pool, adding water, stirring uniformly to form slurry, beating into a combination barrel, adding sulfuric acid according to a proportion, introducing high-temperature water vapor simultaneously, and carrying out a combination reaction to generate a mixed liquid containing manganese sulfate; sending the mixed concentrated solution containing manganese sulfate to a filter press for filter pressing, removing waste residues, and allowing the concentrated solution to enter a pool; pumping the refined liquid obtained after filter pressing into a stainless steel barrel, adding trace sodium diethyldithiocarbamate, introducing high-temperature water vapor, fully stirring, and decomposing to remove heavy metals and toxic substances contained in the refined liquid; feeding the purified semen water into a filter press for secondary filter pressing, removing all waste residues, and feeding the filter-pressed semen water into a pool; sending the semen water into a stainless steel barrel, leaching and precipitating with river sandstone for multiple times to reduce the content of water insoluble substances; pumping the leached material liquid into a concentration barrel for concentration, boiling with high-temperature water vapor to reach the crystallization degree of manganese sulfate, and then drying by spin-drying; feeding the dried wet powder into a drying furnace for drying; crushing the dried powder; performing quality inspection on the crushed powdered food additive manganese sulfate product; and packaging and warehousing the finished product of the food additive manganese sulfate qualified in quality inspection.
2. The process for preparing manganese sulfate as food additive as claimed in claim 1, wherein the calcining furnace is at 1200 ℃ for three hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112304A CN1075469C (en) | 1998-01-08 | 1998-01-08 | Production of manganese sulfate as food additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112304A CN1075469C (en) | 1998-01-08 | 1998-01-08 | Production of manganese sulfate as food additive |
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| Publication Number | Publication Date |
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| CN1222486A CN1222486A (en) | 1999-07-14 |
| CN1075469C true CN1075469C (en) | 2001-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN98112304A Expired - Fee Related CN1075469C (en) | 1998-01-08 | 1998-01-08 | Production of manganese sulfate as food additive |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965263B (en) * | 2012-11-20 | 2014-08-13 | 中国食品发酵工业研究院 | Method for inhibiting ethyl carbamate from being generated in white wine storage process |
| CN103145188B (en) * | 2013-03-25 | 2015-07-29 | 国药集团化学试剂有限公司 | A kind of purification process of manganese sulfate monohydrate |
| CN103613141B (en) * | 2013-12-12 | 2014-12-24 | 徐万铭 | Method for co-production of feed manganese sulfate by using wastewater of crude indium production |
| CN105565387A (en) * | 2016-03-17 | 2016-05-11 | 仇颖莹 | Method for preparing feed-grade manganese sulfate from blast furnace dust |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147948A (en) * | 1974-09-10 | 1976-04-24 | Sir Soc Italiana Resine Spa | Asetaaru horimaaseikeihinno anteikaho |
| CN1038255A (en) * | 1989-06-30 | 1989-12-27 | 沈阳市苏家屯区化工技术服务站 | A kind of production method of manganous sulfate |
| AU5077496A (en) * | 1995-05-01 | 1996-11-14 | Chemix Pty Ltd | A process for the manufacture of manganese sulphate |
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1998
- 1998-01-08 CN CN98112304A patent/CN1075469C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147948A (en) * | 1974-09-10 | 1976-04-24 | Sir Soc Italiana Resine Spa | Asetaaru horimaaseikeihinno anteikaho |
| CN1038255A (en) * | 1989-06-30 | 1989-12-27 | 沈阳市苏家屯区化工技术服务站 | A kind of production method of manganous sulfate |
| AU5077496A (en) * | 1995-05-01 | 1996-11-14 | Chemix Pty Ltd | A process for the manufacture of manganese sulphate |
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| CN1222486A (en) | 1999-07-14 |
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