Organic carboxylic acid or an organic acid salt additive taurine crystal morphology change method

The present invention provides a method of using an organic carboxylic acid or an organic acid salt additive changes the crystal morphology of taurine, under stirring, the temperature is 65 ~ 85 ℃, taurine crude product was dissolved in water, Taurine crude and a mass ratio of water is 30 to 60: 100, followed by addition of an organic carboxylic acid or organic carboxylic acid salt of an additive in an amount of 500 ~ 5000ppm, the solution temperature was reduced to 10 ~ 30 deg.] C, filtered, washed, and dried to give columnar taurine crystal products. Pass yield of about 80% by mass, product purity higher than 99.5%, a bulk density of about 0.9g / mL. Taurine aspect ratio of the columnar crystals in the product is from 3 to 5: 1, an average length of 2.7 ~ 5.5mm, radial 0.5 ~ 1.3mm, a large grain size and evenly distributed, thick crystal, easily broken, difficult to agglomerate, good fluidity , filtered and easily dried.