Current situation of fused magnesium oxide for electric heating in China

The biggest disadvantage of fused magnesium oxide is hygroscopicity. It makes the electric performance of electric heating element getting worse. As a result, in order to prevent moisture absorption, someone has to make elements drying or deal the ends with seal. This will not only cause trouble in the processing, but also result in some sealing difficulties. For this reason, people are keen on moisture-proof research in fused magnesium oxide.

In moisture-proof processing, the best technology is using organic silicide (most of the use is silicone) to coat on magnesia powder particle surface, the coated magnesia with resin has a very good effect on moisture-proof, and maintain the insulation resistance in the cold or certain temperature (below 500 degrees Celsius). According to the quality of the raw material and organic silicide quality of heat and moisture, the moisture-proof magnesium oxide can be divided into cold damp magnesium oxide (the working temperature of electric heat pipe shape element is less than 400 degrees Celsius) and medium temperature moisture magnesium oxide (the working temperature of electric heat pipe shape element is less than 600 degrees Celsius).

The two processing methods are that firstly selecting fused magnesium oxide which has reached the quality standard, then through crushing, screening, ratio of particle size distribution. Mixing a certain amount of organic silicon resin into the reactor, then stirring evenly, the following is to remove organic solvent and make the resin curing, finally cooling, screening agglomerate powder.

This production technology is widely applied in recent years. Our fused magnesium oxide quality has caught up with the developed countries. And the products of Hebei Meishen chemical technology Group Co.,Ltd have entered the international market.

Fused magnesium oxide for electric heating

The production of fused magnesium oxide for electric heating in China is starting from 1960s, and it has achieved rapid development with national economy for decades. Especially since the reform and opening up, household electric heater is used widely, so it's not hard to understand that the demands of the insulating material of magnesium oxide are also growing. At present, the production in the northeast has become a pillar industry.

The characteristics of fused magnesium oxide for electric heating are high resistance, high thermal conductivity, high voltage, low leakage current, and it is the ideal insulation material for household, industrial electric appliances.
As fused magnesium oxide for electric appliances, it has many special requirements including chemical properties, particle shape, crystal shape, etc. The quality is much less than the developed capitalist countries in the past. But in recent years, we have made great progress and gradually caught up with the international advanced level by the efforts of scientific research institutes, universities and colleges, technical workers in the factory.

The raw magnesia for electric heating in China is divided into several levels, the content of magnesium oxide more than 99% is known as 99, the content more than 98% is known as 98, the content more than 97% is known as 97, and so on. Normally the content more than 97% is called the first level magnesia, the content more than 96% is called the secondary level magnesia. And the first level magnesia is used for electric heating element, the secondary level magnesia is used for refractory.

Hebei Meishen chemical technology Group Co.,Ltd specialized manufacture fused magnesium oxide for electric heating. After testing thousands of times, we had developed many kinds of magnesium oxide suitable for dedicated. And we can also product according to customer's different formula, to meet the different indexes requirements. Details you can directly consult our online customer service, we will have someone answer to you.

Fused magnesium oxide

Production equipment of magnesium oxide

There are a lot of magnesium oxide production technology, the brine production method and dolomite carbonization method are the main popular production methods. These two methods of production facilities are different, causing the product characteristics are not the same.

Production equipment of the brine producyion method

1.All kinds of grooves. Can use concrete structure, steel structure or wooden structure, adjust measures to local conditions. 2. The reactors. Can use wooden structure. 3. Washing and dewatering equipment, vacuum filters, filter presses, high speed centrifuge. 4. Dryer, converter dryer, air dryer, drying room, tunnel kiln. 5. High temperature calcination devices, box-type furnace, rotary kiln. 6. Mill, general universal mill, jet mill. 7. Screening machines, vibrating, rotating, classifier using airflow.

Production equipment of dolomite carbonization method

1.Dolomite high temperature calcination device, shaft kiln and rotary kiln, etc. 2. Gas compressor adopts large capacity, low pressure compressor. 3. Gas purification devices, including gas washing Tower. 4. All kinds of grooves. Can use concrete structure, steel structure or wooden structure. Solid-liquid separation using box filter press, plate and frame filter press, etc. Pyrolysis using tower pyrolyzer, tank pyrolyzer, tubular pyrolyzer, etc. Drying used tunnel kiln, chain layer dry machine, spin flash dryer, etc. Calcination using box calcining kiln, rotary dynamic calcination kiln, suspension calcining kiln, etc. 5. Subsequent production equipment with Ammonium bicarbonate method of brine production facility are the same.

A new discovery of magnesium oxide feed grade

With wide and rich industrial experience, Hebei Meishen chemical technology Group Co.,Ltd is able to offer excellent quality of magnesium oxide. In general, the farmer will accordance with the ratio of 2g : 100kg to feed horses. Then why do we need feed magnesium oxide to horses ? Because it is the main component of calming supplements, and it will greatly reduce the degree of wild horses, which is beneficial to the better growth.

In the European and Americas countries, magnesium oxide feed grade not only can supple the magnesium ions in the body, but also can increase the absorption of horses, which is helpful to reduce deposition of fat in the body. Magnesium is very important for the normal functioning of cells, nerves, muscles, bones, and the heart. Usually, a well-balanced diet provides normal blood levels of magnesium. However, certain situations cause your body to lose magnesium faster than you can replace it from your diet. In the spring and autumn season, the grass are growing faster, and it is the time that the horses are extremely lack of magnesium, so you must give the horse a supplement in time. For the treatment problem such as diarrhea, vomiting, stomach and intestinal absorption, it has a good effect, and also can prevent diabetes symptoms.

Magnesium oxide feed grade produced by Hebei Meishen chemical technology Group Co.,Ltd can effectively increase the magnesium content of feed, adjust the livestock of the nervous system, hydrochloric acid in gastric juice. The indexes are : Magnesium oxide（MgO)% ≥93-95; Calcium oxide（CaO） ≤2.00; Heavy metals (pb) ppm≤10; Arsenic（As）ppm≤2; Residue (325 mesh)% ≤0.03. We can meet the special needs of customers, according to user requirements, customized production.

The clinical application of magnesium sulfate

Considerations of magnesium sulfate injection

The users of pregnancy, heart block, severe renal insufficiency are prohibited. When poisoning need to excrete, sodium sulfate should to be used instead of magnesium sulfate. If used too much, resulting in acute magnesium poisoning, you should immediately inject with 10% Calcium Gluconate solution to save. What is need to be noticed, if injection speed too fast or the amount too large, it may cause respiratory depression, a sharp drop in blood pressure, even heart has stopped in diastolic.

Treatments after poisoning of magnesium sulfate

After poisoning of magnesium sulfate, bradycardia and weak of vital signs will appear. Someone else will be nausea and vomiting, even coma. Therefore, you must be timely to find these symptoms, when using injection or powder containing magnesium sulfate. Now below we will introduce how to deal with poisoning.

1.Immediately to stop the intake of magnesium sulfate, accidental poisonings in their immediate gastric lavage and oral milk or egg white to protect the gastrointestinal mucosa.

2. Oral glucose saline as for the people discharging of severe dehydration, generally, put glucose 20g or sucrose 40g into salt water 1000ml. Do this helps the intestinal mucosa epithelial cells absorb Na + and CL-. The emergency situation should be intravenous injection and payed attention to supply potash properly.

Generally speaking, purchasing magnesium sulfate should not to choose smaller manufacturers, the formal enterprises like Hebei Meishen chemical technology Group Co.,Ltd is you best choice.

Congratulated Contemporary Ceramic Art exhibition successfully held

On September 5, 2014 to October 5, "Chinese Contemporary Ceramic Art exhibition" held in Beijing huaxia treasure museum. Works in many ways reflects the craftsmanship of porcelain and art level of a new height. In order to thoroughly understand what is the role of magnesium oxide plays in the process of ceramic production, Hebei Meishen chemical technology Group Co.,Ltd sent someone on site to carry out the investigation, and congratulated to exhibition successfully held.

Hebei Meishen chemical technology Group Co.,Ltd is one of the largest magnesium oxide manufacturers in China, established in 2003, which located in Hi-Tech development zone, chang’an Road, Xingtai city. We are the leading company of magnesia market, and have low prices and stable quality. For “MEISHEN” brand ceramic dedicated magnesium oxide, it can meet the production indexes demands well, specially suitable for ceramic industry.

“MEISHEN” brand ceramic dedicated magnesium oxide used soluble salt and ammonium bicarbonate as raw materials, produced by dolomite carbonization method and two sets of advanced automation equipment. With a full range of raw materials and semi-finished products testing means, magnesium oxide for ceramic can make full play of enamel surface treatment agent and increase the brightness of the floor tile and vividness. For the indexes of particle size distribution, polymorphic structures, fineness, whiteness, iron, heavy metals, activity, wear resistance, high temperature performance and other indexes, it can be customized according to specific requirements.

Our new and old customers : Foshan FengLin glaze, Changsha huake cure, Jiangxi jiahua, Pinan ceramic factory. They are all full of praise for our products, and had established cooperative relations for many years. Welcome everyone to consult us !

Quality standards and testing methods of magnesium oxide nanoparticles

Quality standards
Besides Hebei Meishen chemical technology Group Co.,Ltd, there is no large-scale industrialized manufacturers of magnesium oxide nanoparticles. So the quality standards have not come on yet. Generally speaking, apart from the obvious size requirements, other indicators are associated with the specific uses. For example, the index of high-purity nanometer magnesium oxide is similar to the corresponding level of chemical reagent.

Testing methods
Particle size can be determined by transmission electron microscope or high-power scanning electron microscope, by dolomite carbonization method can obtain SEM and TEM photo. You can also use X-ray diffraction to determine the powder diffraction peak, calculate the size of finished product through diffraction data. But what we should pay attention to is that the original particle size is calculated by using X-ray diffraction, which is known as primary particle size. While using an electron microscope observations often have secondary particle size composition, that is easily observed aggregation of particle size. Magnesium oxide surface tension is relatively large, sometimes aggregation is more serious, that is the first issue which should be tackled in the production process, and it also is one of the difficulties in industrial production. At present, only Hebei Meishen chemical technology Group Co.,Ltd can solve the problem well.

Environmental protection
The production process of nanometer magnesium oxide is similar to industrial grade magnesium oxide, just different in the requirements of different process condition, such as more precise control and higher demands. So in the environmental protection and industrial hygiene, the requirements are the same.