Feng Chun Trade is a business raw magnesite (magnesium chloride, magnesium oxide, magnesium chloride consumption, seven water magnesium, silicon rubber mold, etc.), magnesite products six water magnesium chloride, magnesium chloride supply edible magnesium chloride, and magnesium trading company, long-term distribution magnesium prices, industrial magnesium chloride prices. Tianjin Magnesium sulfate heptahydrate brand aloe production methods: (1) sea salt production was bittern law. Sea bittern solar salt production of magnesium chloride obtained after evaporation method with Brine magnesium chloride, output high temperature salt, consisting of MgSO4 greater than 30%, NaCL less than 35%, MgCL2 about 7%, KCL about 0.5%. Dry brine solution available MgCL2 200g / L at 48 ℃ leaching, NaCL dissolve less and MgSO4 dissolve 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, and then adjust the PH to 4, adding the right amount of seed with sulfuric acid, and cooled to 30 ℃ crystallization. After separation at 50-55 ℃ drying products magnesium cement, the return of liquor and cans. 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 is magnesium sulfate heptahydrate manufacturers, the main seven water magnesium sulfate, magnesium sulfate heptahydrate fertilizer grade, industrial grade seven water magnesium sulfate, magnesium sulfate heptahydrate feed grade, pharmaceutical grade magnesium sulfate heptahydrate; agricultural grade seven sulfate drying magnesium sulfate heptahydrate;; drying industrial magnesium sulfate heptahydrate; drying of agricultural grade magnesium sulfate heptahydrate magnesium. Magnesium sulfate heptahydrate keep prices stable quality magnesium sulfate heptahydrate is Feng Chun's primary purpose. Aloe brand magnesium chloride preferred procurement _ Feng Chun Trade (certified) _ Zhangjiajie chloride provided by Foshan Jun Feng Trading Co., Ltd. Foshan Jun Feng Trading Co., Ltd. (www.fsfengjun.com) Guangdong Foshan, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Feng Chun Trade in leadership with the staff warmly welcome all inquiries negotiations to create Feng Chun Trade a better future.