公开(公告)号：US4073877A

公开(公告)日：1978-02-14

申请号：US581217

申请日：1975-05-27

申请人： Edgar Klein ,  Reinhard Kracke ,  Walter Nespital ,  Rudiger Paul, deceased

发明人： Edgar Klein ,  Reinhard Kracke ,  Walter Nespital ,  Rudiger Paul, deceased

IPC分类号： C01G23/047 ,  C01G23/053 ,  C09C1/36 ,  C01G23/06

CPC分类号： C01G23/0534 ,  C01G23/047 ,  C09C1/36 ,  C01P2006/80

摘要： The application is concerned with a process for the manufacture of a titanium dioxide pigment from a titanium sulfate solution by hydrolysis in the presence of nuclei. The latter may be formed externally from any suitable source of titanium sulfate solution and preferably, but not exclusively, from a portion of the titanium sulfate solution used in forming the hydrous TiO.sub.2 ; the nuclei being prepared by mixing the titanium sulfate solution, from whatever source, simultaneously with an alkaline reacting solution and subsequently curing the mixture at elevated temperature. In the present application "titanium sulfate solution" is understood to be a solution which may also contain other substances besides titanium sulfate; and may be obtained, for example, by digestion of titaniferous ores or slags using sulfuric acid, followed by dissolution of the resulting digestion cake.

摘要翻译： 本申请涉及在核的存在下通过水解由硫酸钛溶液制造二氧化钛颜料的方法。 后者可以从任何合适的硫酸钛溶液源外部形成，优选但不排他地由用于形成含水TiO 2的一部分硫酸钛溶液形成; 该核通过将来自任何来源的硫酸钛溶液与碱性反应溶液同时混合并随后在升高的温度下固化该混合物来制备。 在本申请中，“硫酸钛溶液”被理解为除硫酸钛之外还可含有其它物质的溶液; 并且可以例如通过使用硫酸消耗含钛矿石或炉渣，然后溶解所得消化饼来获得。