Patent Details

Patent ID: CN201019114022.X

A process for the preparation of magnetic fluid bag gold magnetic particles for

Description: Preparation method for preparing a package for magnetic liquid gold magnetic particles, the method comprising: Press three iron nano-magnetic particles and chloroauric acid mass ratio of 1:10 to 1:0.5 tetroxide, chloroauric acid and sodium citrate quality than 1:36.9 ~ 1:7.4 or quality acid chloride with hydroxylamine hydrochloride take gold than 1:5.6 ~ 1:2 said preparation; Press weighed chloroauric acid, hydroxylamine hydrochloride and sodium citrate production solution. The iron oxide magnetic nanoparticles soluble in anhydrous ethanol ultrasonic dispersion completely. Adding 3-aminopropyl triethoxysilane and magnetic iron oxide nano-particles, the volume and quality ratio of 1 to 4/1, continue to ultrasound. Join configured chlorine acid solution, ultrasound 1h. Sodium citrate solution was added hydroxylamine hydrochloride solution, sonicated 6h, separation, washing, ultrasonic washing with dilute hydrochloric acid, 1h, separation, drying, the magnetic particles of gold bag.Corrosion resistant magnetic liquid gold particles prepared by the package has been enhanced.

Patent Details:

DOI: H01F1 / 00 (2006.01) I; H01F1 / 44 (2006.01) I