Weifang Rui Desheng Chemical Co., Ltd. (www.ruidesheng.com) is located in Weifang, Shandong Weifang Binhai Economic Development Zone, Contact: Liqing Jie Sodium Sulfate promote dye works: Most commodities direct dyes mixed with a certain content of the Yuan and Ming Powder Sodium Sulfate standards as part of the force regulating dye filler. But still need to add salt or sodium sulphate in the application of the dye in the dye to increase the percentage. A very important reason for salt for direct dyes acceleration effect is to reduce the dyeing process charge effect. Cellulose fibers with a neutral or weakly alkaline dyebath surface potential, and a direct dye sodium sulfate anionic charge repulsion generated it, the electrolyte is added, a large amount of positively charged sodium ions of the dye, the dye anions remain charge-neutral, eliminating barriers dyeing process, the dye molecules in close contact with the fiber surface sodium sulfate, reducing the dye and fiber concentration near the interface is poor, thereby increasing the percentage of dye staining. However, direct dyes dyeing process can be divided into: adsorption, diffusion, fixing three stages. In the not too fast color dye adsorption stage, if added to the electrolyte in the adsorption stage, it is possible to make the dye aggregation caused by uneven dyeing, and electrolytes in the middle to join, can avoid excessive color, dual-dye can improve Percentage. Weifang Rui Desheng Chemical Co., Ltd. Tel: 15263640888 sodium sulfate method of editing methods for preparing a (beach Tian France) use of natural temperature variations in different seasons of the raw material liquid evaporation, the crude Glauber's salt crystallized out. Summer saltwater containing sodium chloride, sodium sulfate, magnesium sulfate, magnesium chloride and other ingredients poured salt field, evaporated by the sun, winter precipitation crude Glauber. This method is the main method of thenardite made from natural resources, the process is simple, low energy consumption, but poor working conditions, the product easy to mix sediment and other impurities. Method 2 (mechanical freezing) using mechanical equipment heating the raw material liquid was evaporated to -5 ~ -10 ℃ frozen precipitation when thenardite. Compared with the salt field method, this method is not affected by seasonal and natural conditions. Good quality, but high energy consumption. Method three (Salt Lake utilization method) is mainly used for sulfate containing a variety of components - carbonate salt water. In a variety of useful components from the extract, separating the crude mirabilite. Salt water processing including for example sodium carbonate, sodium sulfate, sodium chloride, boride and potassium, bromine, lithium salt lake brine carbonation can be the first to make sodium bicarbonate into crystallized; cooling the mother liquor to 5 ~ 15 ℃, borax crystallized; borax secondary mother liquor after freeze to 0 ~ 5 ℃, Glauber's salt precipitate. Sales Tel: 15263640888