Patent ID: 8308840
Filing Date: 2012-11-13
Classification: C01G,C05D

Abstract:
1. A continuous method of producing hydrolysis-resistant stable ionic titanium, comprising the following steps: (i) a redox reaction between titanium and an excessive strong acid is carried out, said titanium is dissolved and a titanium salt solution comprising ionic titanium is produced; (ii) said titanium salt solution and a first chelator undergo a primary chelation reaction to create a chelated product; the molar ratio between titanium salt solution and chelator being 1:1 in said chelated product; (iii) purified water is injected into the chelated product to create a diluted product; the ionic titanium concentration in the diluted product being diluted to 40,000 ppm and its pressure maintained or adjusted to 0.2˜0.3 Mpa; (iv) an alkaline liquor is mixed with said diluted product to produce an intermediate fine mixed material having a pH value of 2.5˜3 and a pressure of 0.2˜0.3 Mpa, wherein the normality of the alkaline liquor is 2˜4N; (v) said intermediate fine mixed material and a second chelator undergo a second chelation reaction to produce a secondary chelated product; wherein the pH value of the secondary chelated product is controlled in the range of 3.0±0.1 and the pressure thereof is 0.2˜0.3 Mpa; and (vi) combining a microelement solution and an alkaline liquor with said secondary chelated product to make a final fine mixture comprising hydrolysis-resistant stable ionic titanium.