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1. 发明授权

US4663131A Process for the preparation of titanium dioxide 失效
标题翻译：二氧化钛的制备方法
公开(公告)号：US4663131A
公开(公告)日：1987-05-05
申请号：US673244
申请日：1984-11-20
申请人： Rudolf Gerken , Gerhard Wiederhoft , Gunter Lailach , Walter Gutsche , Wolfgang D. Muller
发明人： Rudolf Gerken , Gerhard Wiederhoft , Gunter Lailach , Walter Gutsche , Wolfgang D. Muller
IPC分类号： C01G23/053 , C22B34/12 , C01G23/047
CPC分类号： C01G23/0532 , C22B34/125 , C22B34/129 , Y02P10/212
摘要： In the preparation of titanium dioxide comprising autothermically digestion a titanium-containing raw material with sulphuric acid to form a solid relatively easily soluble digestion cake containing titanyl sulphate, extracting metal sulphates from this cake by water or dilute sulphuric acid, separating the undissolved residues and, optionally after crystallization of iron sulphate heptahydrate, hydrolyzing the titanyl sulphate to produce titanium oxide hydrate, and calcining the titanium oxide hydrate to titanium dioxide, the improvement which comprises adding to the raw material a metal sulphate and effecting the autothermic decomposition with sulphuric acid of about 80 to 88% concentration. Advantageously the acid is obtained by mixing dilute acid with concentrated sulphuric acid or oleum, some of the dilute acid and metal sulphate coming from a by-product filter cake produced in the course of the process.
摘要翻译：在二氧化钛的制备中，包括用硫酸自动消化含钛原料以形成含有硫酸氧钛的固体相对容易溶解的消化饼，用水或稀硫酸从该饼中提取金属硫酸盐，分离未溶解的残余物，任选地在硫酸铁七水合物结晶后，水解硫酸氧钛以产生氧化钛水合物，并将氧化钛水合物煅烧成二氧化钛，其改进包括向原料中加入金属硫酸盐，并用硫酸约自发分解 80〜88％浓度。有利地，酸是通过将稀酸与浓硫酸或发烟硫酸混合而获得的，一些稀酸和金属硫酸盐来自在该方法过程中产生的副产物滤饼。

2. 发明授权

US3963585A Distillation of titanium tetrachloride in solution with selected amines 失效
标题翻译：在选择的胺溶液中蒸馏四氯化钛
公开(公告)号：US3963585A
公开(公告)日：1976-06-15
申请号：US465954
申请日：1974-05-01
申请人： Gerhard Winter , Walter Deissmann , Walter Gutsche , Peter Woditsch
发明人： Gerhard Winter , Walter Deissmann , Walter Gutsche , Peter Woditsch
IPC分类号： C01G23/02 , B01D3/34
CPC分类号： C01G23/024
摘要： In the purification of impure titanium tetrachloride comprising adding an agent to said titanium tetrachloride and thereafter distilling off purified titanium tetrachloride while leaving the impurity in the distillation residue, the improvement which comprises employing as said agent at least one amine of the formula ##EQU1## in which R.sub.1 and R.sub.2 each independently is hydrogen, alkyl or alkenyl of up to 6 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, or aryl, andR.sub.3 is cycloalkyl of 5 to 7 ring carbon atoms, or aryl, orR.sub.2 together with R.sub.3 is butylene, pentylene or hexylene, in which eventR.sub.1 is hydrogen, alkyl of up to 6 carbon atoms or aryl.The preferred agents are aniline, cyclohexylamine, N,N-dimethyl-aniline, diphenylamine, 2,3-dimethyl-aniline and 2,6-dimethyl-aniline. The process serves to remove vanadium impurities.
摘要翻译：在不纯的四氯化钛的纯化中，包括在所述四氯化钛中加入试剂，然后蒸馏出纯化的四氯化钛，同时留下蒸馏残余物中的杂质，其改进包括使用至少一种式R 2 R 1 -N 其中R 1和R 2各自独立地为氢，至多6个碳原子的烷基或烯基，5至7个碳原子的环烷基或芳基，R 3为5至7个环碳原子的环烷基，或芳基或R 2 与R 3一起是亚丁基，亚戊基或亚己基，其中R1是氢，高达6个碳原子的烷基或芳基。

3. 发明授权

US4313913A Production of hydrolyzable titanyl sulphate solution 失效
标题翻译：生产可水解的硫酸氧钛溶液
公开(公告)号：US4313913A
公开(公告)日：1982-02-02
申请号：US213539
申请日：1980-12-05
申请人： Peter Panek , Walter Gutsche , Peter Woditsch
发明人： Peter Panek , Walter Gutsche , Peter Woditsch
IPC分类号： C01G23/00 , C22B34/12
CPC分类号： C22B34/125 , C01G23/008
摘要： A process for the production of a hydrolyzable titanyl sulphate solution comprising contacting sulphuric acid of about 86% concentration with a mixture of slag and ilmenite, the ratio of H.sub.2 SO.sub.4 to TiO.sub.2 in the mixture ranging from about 1.7:1 to 2.2:1 and the mol ratio of Ti(III) to Fe(III) in the mixture ranging from about 25:1 to 1.4:1, the slag having a TiO.sub.2 content of >80% and a Ti(III) content of about 22 to 40% calculated as TiO.sub.2, and the ilmenite having a Fe(III) to Fe(II) ratio from about 1:1 to 10:1, and adding water if necessary to bring the concentration of sulphuric acid to from about 86 to 96%.
摘要翻译：一种生产可水解的硫酸氧钛溶液的方法，包括将约86％浓度的硫酸与炉渣和钛铁矿的混合物接触，混合物中的H 2 SO 4与TiO 2的比例为约1.7:1至2.2:1，混合物中Ti（III）与Fe（III）的比例为约25:1至1.4:1，所述炉渣的TiO 2含量> 80％，Ti（III）含量为约22至40％，计算为 TiO 2和Fe（III）至Fe（II）的比例为约1:1至10:1的钛铁矿，并且如果需要加入水以使硫酸浓度达到约86至96％。

4. 发明授权

US4304758A Hydrolyzable titanyl sulphate solutions by decomposition of ternary raw material mixtures 失效
标题翻译：通过三元原料混合物的分解可水解的硫酸氧钛溶液
公开(公告)号：US4304758A
公开(公告)日：1981-12-08
申请号：US213540
申请日：1980-12-05
申请人： Hilmar Rieck , Walter Gutsche , Peter Woditsch , Peter Panek
发明人： Hilmar Rieck , Walter Gutsche , Peter Woditsch , Peter Panek
IPC分类号： C01G23/00 , C22B34/12 , C01G23/053
CPC分类号： C22B34/125 , C01G23/008
摘要： A process for the preparation of a hydrolyzable titanyl sulphate solution comprising adding sulphuric acid having a concentration greater than about 86% to a ternary mixture of two slags and an ilmenite to bring the proportion by weight of H.sub.2 SO.sub.4 to TiO.sub.2 to from about 1.7:1 to 2.2:1 and adding water, dilute sulphuric acid or oleum in amount sufficient to bring the H.sub.2 SO.sub.4 concentration to from about 86 to 96%, thereby to form the titanyl sulphate solution, the first slag having a TiO.sub.2 content greater than about 80% and a Ti(III) content of about 22 to 40%, the second slag having a TiO.sub.2 content of about 60 to 80% and a Ti(III) content of about 5 to 15%, and the ilmenite having a ratio of Fe(III) to Fe(II) of from about 1:1 to 10:1, the slags and ilmenite being present in such proportions that the ternary mixture of raw materials obtained has a molar ratio of Ti(III) to Fe(III).gtoreq.1.4.
摘要翻译：一种制备可水解硫酸氧钛溶液的方法，其包括将浓度大于约86％的硫酸添加到两种炉渣和钛铁矿的三元混合物中，以使H 2 SO 4的重量比例从约1.7:1提高到约1.7:1至 2.2:1，并加入水，稀硫酸或发烟硫酸，其量足以使H 2 SO 4浓度达到约86％至96％，从而形成硫酸氧钛溶液，第一炉渣的TiO 2含量大于约80％，并且 Ti（III）含量为约22〜40％，第二炉渣的TiO 2含量为约60〜80％，Ti（III）含量为5〜15％左右，钛铁矿的Fe（III）对于Fe（II）为约1：1至10：1，炉渣和钛铁矿以以下比例存在：获得的原料的三元混合物具有Ti（III）与Fe（III）的摩尔比> 1.4。

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