Foshan Jun Feng Trading Co., Ltd. is mainly engaged in: magnesium chloride, magnesium oxide, magnesium sulfate, modifiers, fiberglass cloth, edible magnesium chloride, magnesium sulfate heptahydrate, foaming agents. Run a variety of silicone mold silicone, silicone splash agent, silicone fireproof agent. Seven water magnesium production methods: (2) sulfuric acid method. In the first tank magnesite and slowly add water and liquor, and then neutralized with sulfuric acid, the color from white to red till the soil, control PH = 5, the relative density of 1.37-1.38) 39-40Bé). Filtered at 80 ℃ and in liquid, and then with sulfuric acid to adjust the PH to 4, adding an appropriate amount of magnesium sulfate heptahydrate seed industry, and cooled to 30 ℃ crystallization. After separation at 50-55 ℃ drying products, liquor and return to the pot. Low concentration sulfuric acid can also be used with magnesium oxide content of 65% magnesite neutralization reaction, filtration, precipitation, concentration, crystallization, centrifugation, and dried, to obtain magnesium sulfate heptahydrate. Feng Chun Trade is a business raw magnesite (magnesium chloride, magnesium oxide, magnesium chloride consumption, seven water magnesium, silicon rubber mold, etc.), magnesite products, edible supply magnesium chloride, magnesium chloride, and magnesium trading company, the price of seven long-term distribution of magnesium chloride water magnesium sulfate, magnesium chloride industrial prices. Tianjin Magnesium sulfate heptahydrate brand aloe production methods: (1) sea salt production was bittern law. Sea salt production bittern obtained after evaporation against halide method, outputs the high temperature salt, consisting of MgSO4 greater than 30%, NaCL less than 35%, MgCL2 about 7%, KCL about 0.5%. Cumyl halide available MgCL2 solution 200g / L at 48 ℃ leaching, NaCL dissolve less fertilizer grade magnesium sulfate heptahydrate, and MgSO4 was dissolved more. After separation, the immersion cooling to 10 ℃ then precipitated crude MgSO4 · 7H20, by secondary recrystallization finished. (2) sulfuric acid method. In the first tank magnesite and slowly add water and liquor, and then neutralized with sulfuric acid, the color from white to red till the soil, control PH = 5, the relative density of 1.37-1.38) 39-40Bé). Filtered at 80 ℃ and in liquid food-grade magnesium sulfate heptahydrate, and then adjust the PH to 4, adding an appropriate amount of the seed crystal with sulfuric acid, and cooled to 30 ℃ crystallization. After separation at 50-55 ℃ drying products, liquor and return to the pot. Low concentration sulfuric acid can also be used with magnesium oxide content of 65% magnesite neutralization reaction, filtration, precipitation, concentration, crystallization, centrifugation, and dried, to obtain magnesium sulfate heptahydrate. Magnesium sulfate heptahydrate manufacturers, Pakistani magnesium sulfate heptahydrate, Feng Chun professional supplier of magnesium sulfate heptahydrate provided by Foshan Jun Feng Trading Co., Ltd. Foshan Jun Feng Trading Co., Ltd. (www.fsfengjun.com) strong, credible, in Foshan, Guangdong chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Feng Chun trade and you hand into the brilliant, for a better future!