If want to purchase high pure magnesium carbonate, you had better to know the quality standard of it.
Food grade magnesium carbonate should accord with the standard of GB25587-2010, National food safety standards, food additives, magnesium carbonate standard. Food additives Magnesium carbonate, made by reacting carbon dioxide with magnesium hydroxide emulsion or sodium carbonate react with soluble magnesium salt, can be used as a flour treatment agent, gum base agent, alkaline agent, desiccant, stabilizer.color-protecting, anticaking agent, bulking agent and acidity regulators, and is used in salt, sugar, cream, milk powder, acidification, ice cream, biscuits. Regulations in our country, it can be used as flour treatment agent, but the maximum amount is 5.0 g/kg; and the biggest usage in flour is 1.5 g/kg.
Industrial grade magnesium carbonate should accord with the standard of HG/T2959-2010. It is mainly refer to industrial hydrated alkali magnesium carbonate which is used brine and dolomite and sodium carbonate as raw materials. Mainly used for rubber products transparent or light color filling agent and reinforcing agent, and can enhance the wear resistance of rubber, resistance to bending and tensile strength.it also can be used as paint, graphite and coating additives, used for thermal insulation materials, rubber and special glass ingredients. It is an good filling agent and reinforcing agent of rubber products, and reinforcing effect is better than that of calcium carbonate and clay.
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2015年12月28日星期一
Introduction of Magnesium Oxide Ceramics
Magnesium oxide is main component of magnesium oxide ceramic, which is belongs to the cubic crystal system, NaCl structure. Pure magnesium melting point is 2800 ℃±13 ℃. Mohs hardness is 6, tensile strength, compressive strength and bending strength are much lower than the sintering Al2O3. Its high temperature strength is also low. MgO is a good insulator, room temperature resistivity Ω > 1014 cm. With the temperature increases, resistivity reduced sharply. Magnesium oxide ceramic is a typical basic refractory, can work stable to 2400 ℃ under oxidizing atmosphere or nitrogen protection. MgO will break down in the reducing atmosphere, in the form of metal magnesium volatile, began to a large number of volatile in the 1600 ℃ in a vacuum. Magnesium oxide ceramic can be used for smelting metal crucible, in the atomic energy industry also is suitable for smelting high purity of uranium and thorium. Also can be used as a thermocouple protection tube. Using it can make the nature of the electromagnetic wave through the cover, it is used for radar and infrared radiation transmission window material, etc.
Magnesium Oxide Used as Flame Retardants
One of the main purpose of magnesium oxide is used as flame retardants. As the traditional flame retardant materials, it is widely made of flame retardant mixture, containing halogen polymers or containing halogen flame retardants. But once there is a fire, as a result of pyrolysis and combustion, it will produce a lot of smoke and toxic and corrosive gas to prevent fire fighting and personnel evacuation, instruments and equipment corrosion. Especially it has been found that, there are more than 80% death accidents in fire is caused by material of smoke and toxic gases, except the flame retardant efficiency, low smoke and low toxic are also the indispensable requirements for flame retardant. China flame retardant industry development is not balanced, proportion of chlorine is flame retardant, most in the flame retardants, including chlorinated paraffin monopoly. But when the chlorine flame retardant role, releasing toxic gas, there is a big distance between the non-toxic with modern life pursues high efficiency. So in order to adapt to the flame retardant low smoke, low toxicity and the development trend of pollution-free, it is imperative to the development, production and application of magnesium hydroxide flame retardant.
From the current master, magnesium oxide as a flame retardant has very broad prospects for development, as the replacement of traditional flame retardant effect is more and more attention, the market prospect of the magnesium oxide will be brighter.
From the current master, magnesium oxide as a flame retardant has very broad prospects for development, as the replacement of traditional flame retardant effect is more and more attention, the market prospect of the magnesium oxide will be brighter.
The Application of Pharmaceutical Grade Magnesium Carbonate
The Application of Pharmaceutical Grade Magnesium Carbonate:
1. Magnesium carbonate is used for gastric ulcer and duodenal ulcer. Canker or peptic ulcer is a common digestive tract disease, can occur in the esophagus, stomach, or duodenum, the abdominal pain is the main symptoms of this disease.
2. Magnesium carbonate is used for Acute and chronic gastritis and duodenal ampulla inflammation. Magnesium carbonate can stimulate the gastric mucosa prostaglandin E2 synthesis, thereby enhancing the “gastric mucosal barrier” effect.
3. Magnesium carbonate is used for Reflux esophagitis. Reflux esophagitis (RE) is from the stomach, duodenal contents into the esophagus caused by esophageal inflammatory lesions, endoscopic esophageal mucosal damage showed, that is esophageal erosions and (or) esophageal ulcers.
4. Magnesium carbonate is used in related to gastric acidity of the stomach discomfort. Magnesium carbonate can quickly neutralize stomach acid, effect lasting. Magnesium carbonate as antacids, compound hydroxide are similar, but they have a mild persistent effect, and can react with hydrochloric acid in gastric juice fully, response rate can reach 98% ~ 100%.
1. Magnesium carbonate is used for gastric ulcer and duodenal ulcer. Canker or peptic ulcer is a common digestive tract disease, can occur in the esophagus, stomach, or duodenum, the abdominal pain is the main symptoms of this disease.
2. Magnesium carbonate is used for Acute and chronic gastritis and duodenal ampulla inflammation. Magnesium carbonate can stimulate the gastric mucosa prostaglandin E2 synthesis, thereby enhancing the “gastric mucosal barrier” effect.
3. Magnesium carbonate is used for Reflux esophagitis. Reflux esophagitis (RE) is from the stomach, duodenal contents into the esophagus caused by esophageal inflammatory lesions, endoscopic esophageal mucosal damage showed, that is esophageal erosions and (or) esophageal ulcers.
4. Magnesium carbonate is used in related to gastric acidity of the stomach discomfort. Magnesium carbonate can quickly neutralize stomach acid, effect lasting. Magnesium carbonate as antacids, compound hydroxide are similar, but they have a mild persistent effect, and can react with hydrochloric acid in gastric juice fully, response rate can reach 98% ~ 100%.
2015年12月23日星期三
Magnesium Oxide Technology are in Urgent of Upgrading and Transformation
For magnesium oxide product innovation, transformation and ascension, Mr. Sun (President )have their own opinions. He said, Meishen Chemical want to be lasting development, depending on the choice of products and the quality. With a good product, scientific choice, there will be a good market prospects. With excellent product quality, there will be a good customer reputation and market brand. Therefore, the use of scientific and technological innovation accelerate the upgrading of magnesium oxide products, and it is the foundation and fulcrum effective business continuity and stable development.
Hebei Meishen Chemical Technology Co.,LTD of magnesium oxide production and construction, plan and design accordance by the most advanced, scientific and rational production concept. Each production line investment up to tens of millions of yuan, each building workshop construction costs as high as 30 million yuan. Companies in the transformation and upgrade production technology, equipment aspects, willing put so much effort, spend huge fees, aims to continue the traditional magnesium oxide products and production process optimization and innovation, make enterprises in the development path of sustained innovation go more stable, longer and healthier, more persistent.
At present, Hebei Meishen Chemical Technology Co.,LTD has developed into a domestic manufacturing enterprise specialized in the production of magnesium oxide, which has the most complete varieties and specifications, the largest production scale and best product quality. Leading products are magnesium oxide, magnesium carbonate, magnesium sulphate and other magnesium salt series products. Products sold to Shandong, Liaoning, Guangxi, Yunnan and other domestic over 20 provinces and cities, even exported to Southeast Asia, the Americas, Australia, Eastern Europe and other countries and regions.
Hebei Meishen Chemical Technology Co.,LTD of magnesium oxide production and construction, plan and design accordance by the most advanced, scientific and rational production concept. Each production line investment up to tens of millions of yuan, each building workshop construction costs as high as 30 million yuan. Companies in the transformation and upgrade production technology, equipment aspects, willing put so much effort, spend huge fees, aims to continue the traditional magnesium oxide products and production process optimization and innovation, make enterprises in the development path of sustained innovation go more stable, longer and healthier, more persistent.
At present, Hebei Meishen Chemical Technology Co.,LTD has developed into a domestic manufacturing enterprise specialized in the production of magnesium oxide, which has the most complete varieties and specifications, the largest production scale and best product quality. Leading products are magnesium oxide, magnesium carbonate, magnesium sulphate and other magnesium salt series products. Products sold to Shandong, Liaoning, Guangxi, Yunnan and other domestic over 20 provinces and cities, even exported to Southeast Asia, the Americas, Australia, Eastern Europe and other countries and regions.
Magnesium Hydroxide and Light Magnesium Oxide
The relationship between magnesium hydroxide and light magnesium oxide. In the production progress, they can realize transformation in different conditions.
1.After magnesium hydroxide filter press, light burning or drying oven under 350 ℃ or less , made of light magnesium oxide or magnesium hydroxide. This method, not only improves the resource utilization of magnesite, but also ensures the products quality. It has the advantages of saving energy and reducing consumption, no pollution to environment.
2.It is based on magnesite as raw material, then be put in traditional carbonization kiln, finally calcined generate magnesium oxide.
3.Filter to remove impurities such as iron hydroxide, then add soluble magnesium hydroxide, and at the same time to join concentration of 25-28% of the ammonia brine, dilution pyrolysis 1.5 hours, generate into the magnesium hydroxide.
4.Make magnesium oxide above into paste.
5.Put magnesium carbonate in acid solution concentration of 98°, after acid solution into soluble magnesium hydroxide, then add weight ratio in mixed acid solution for 2-3 ‰ antioxidant, make its solution of ferrous is oxidized to ferric hydroxide.
6.Put the slurry in the tower to make pulp reduction carbide carbide into magnesium carbonate.
1.After magnesium hydroxide filter press, light burning or drying oven under 350 ℃ or less , made of light magnesium oxide or magnesium hydroxide. This method, not only improves the resource utilization of magnesite, but also ensures the products quality. It has the advantages of saving energy and reducing consumption, no pollution to environment.
2.It is based on magnesite as raw material, then be put in traditional carbonization kiln, finally calcined generate magnesium oxide.
3.Filter to remove impurities such as iron hydroxide, then add soluble magnesium hydroxide, and at the same time to join concentration of 25-28% of the ammonia brine, dilution pyrolysis 1.5 hours, generate into the magnesium hydroxide.
4.Make magnesium oxide above into paste.
5.Put magnesium carbonate in acid solution concentration of 98°, after acid solution into soluble magnesium hydroxide, then add weight ratio in mixed acid solution for 2-3 ‰ antioxidant, make its solution of ferrous is oxidized to ferric hydroxide.
6.Put the slurry in the tower to make pulp reduction carbide carbide into magnesium carbonate.
Magnesium Oxide Production
In the process of preparing magnesium oxide products, dolomite directly were shattered, mainly grinder noise and dust pollution to the environment. So when select crushing equipment, you had better try to choose low-noise, airtight good equipment, if necessary, install silencer, production process as far as possible to use negative pressure operation, playing the roles of sound insulation and reducing environmental pollution.
The operator work place, ensure good ventilation, strengthen plant ventilation, reduce the amount of dust in indoor air, to prevent occupational diseases. Strict operating procedures, maintenance and repair as required fine grinding equipment, transportation equipment and packaging equipment to ensure that equipment operating in the normal state. According to the requirements of the safety rules, mount guard work should wear overalls, gloves, hu working cap, with dust mask when necessary.
Hebei Meishen Technology Co.,LTD is the largest magnesium oxide supplier in China, and to cooperate with the Chinese Association of magnesium oxide and Tsinghua University, Hebei University of Science and Technology research institutes. In addition, Meishen also has two research centers, a magnesium Engineering Technology Research Center, Hebei Province Enterprise Technology Center. Meishen is a trust brand of magnesium oxide brand supplier.
The operator work place, ensure good ventilation, strengthen plant ventilation, reduce the amount of dust in indoor air, to prevent occupational diseases. Strict operating procedures, maintenance and repair as required fine grinding equipment, transportation equipment and packaging equipment to ensure that equipment operating in the normal state. According to the requirements of the safety rules, mount guard work should wear overalls, gloves, hu working cap, with dust mask when necessary.
Hebei Meishen Technology Co.,LTD is the largest magnesium oxide supplier in China, and to cooperate with the Chinese Association of magnesium oxide and Tsinghua University, Hebei University of Science and Technology research institutes. In addition, Meishen also has two research centers, a magnesium Engineering Technology Research Center, Hebei Province Enterprise Technology Center. Meishen is a trust brand of magnesium oxide brand supplier.
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