公开(公告)号：US3540846A

公开(公告)日：1970-11-17

申请号：US3540846D

申请日：1969-02-03

申请人： TITAN GMBH

发明人： KLEIN EDGAR ,  KULLING ACHIM ,  STEINHAUSEN HELMUT

IPC分类号： C01G23/053 ,  C01G23/06 ,  C01G23/08

CPC分类号： C01G23/0538 ,  C01P2006/60

公开(公告)号：US3463610A

公开(公告)日：1969-08-26

申请号：US3463610D

申请日：1966-05-11

申请人： BRITISH TITAN PRODUCTS

发明人： GROVES JAMES DENNIS ,  ARKLESS KENNETH

IPC分类号： C01B13/22 ,  C01B13/24 ,  C01B13/26 ,  C01B13/28 ,  C01B33/18 ,  C01G23/07 ,  C01G23/06 ,  C09C1/36

CPC分类号： B82Y30/00 ,  C01B13/22 ,  C01B13/24 ,  C01B13/26 ,  C01B13/28 ,  C01B33/183 ,  C01G23/07 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/60

公开(公告)号：US4168297A

公开(公告)日：1979-09-18

申请号：US967818

申请日：1978-12-08

申请人： Krishnamurthy Nagasubramanian ,  Kang-Jen Liu

发明人： Krishnamurthy Nagasubramanian ,  Kang-Jen Liu

IPC分类号： C01G49/00 ,  C22B3/38 ,  C22B34/12 ,  C01G23/06 ,  C01G49/10

CPC分类号： C01G49/0009 ,  C22B3/0068 ,  C22B3/0087 ,  C22B34/1245 ,  C22B34/1259 ,  Y02P10/234

摘要： An improved process is described for producing titanium dioxide from ilmenite-type ore. The ore is digested with aqueous hydrogen fluoride, the resulting liquid mixture treated with a water-soluble oxidizing agent, and the ferric iron impurities, in the resulting digestion solution, at a pH between about 1.0 and 6.0, are extracted out with a mono-or dialkyl, or mono- or di-(alkylphenyl) orthophosphoric acid, such as di-(2-ethylhexyl) orthophosphoric acid. The remaining solution is treated with ammonium hydroxide to precipitate hydrated titanium dioxide which is then calcined to form pigmentary titanium dioxide. Alkali metal and ammonium salts of the organophosphoric acid are also useful in the process.

摘要翻译： 描述了从钛铁矿型矿石生产二氧化钛的改进方法。 矿石用氟化氢水溶液消化，所得到的液体混合物用水溶性氧化剂处理，得到的消解溶液中的三价铁杂质在约1.0至6.0之间的pH下， 或二烷基，或单 - 或二 - （烷基苯基）正磷酸，例如二（2-乙基己基）正磷酸。 剩余的溶液用氢氧化铵处理以沉淀水合二氧化钛，然后煅烧以形成颜料二氧化钛。 有机磷酸的碱金属和铵盐也可用于该方法中。

公开(公告)号：US4133864A

公开(公告)日：1979-01-09

申请号：US889405

申请日：1978-03-23

申请人： Kosaki Yoshio ,  Yagi Katsumi ,  Kura Yasuo

发明人： Kosaki Yoshio ,  Yagi Katsumi ,  Kura Yasuo

IPC分类号： C01G23/053 ,  C01G23/06

CPC分类号： C01G23/0532

摘要： Titanium dioxide of improved properties for use as a pigment is obtained by a process in which a non-concentrated acid solution containing not more than 200 grams of TiO.sub.2 per liter of solution is partially hydrolyzed and filtered; and additional acid solution slowly added with heating to hydrolyze the remaining TiO.sub.2 and give a product which, on calcining has a color index of about 1500.

摘要翻译： 通过将每升溶液中含有不超过200克TiO 2的非浓缩酸溶液部分水解和过滤的方法获得用作颜料的改进性能的二氧化钛; 并加热缓慢加入另外的酸溶液以水解剩余的TiO 2并产生在焙烧时具有约1500的颜色指数的产物。

公开(公告)号：US4119698A

公开(公告)日：1978-10-10

申请号：US884014

申请日：1978-03-06

申请人： Erich Zimmer ,  Ahmad Nafissi ,  Gunther Winkhaus

发明人： Erich Zimmer ,  Ahmad Nafissi ,  Gunther Winkhaus

IPC分类号： C01F7/06 ,  C01F7/32 ,  C01G23/053 ,  C22B3/08 ,  C22B34/12 ,  C01G23/06

CPC分类号： C01G23/0532 ,  C01F7/066 ,  C01F7/32 ,  C22B3/08 ,  C22B34/125 ,  C22B34/1259 ,  Y02P10/234

摘要： The red mud by-product of the Bayer process by which aluminum oxide is reed from bauxite as an aluminate, is digested with concentrated sulfuric acid or with sulfur trioxide gas to produce sulfates that can be leached out to the resulting mass with water. The solution is then heated at a pH of 1 to precipitate titanium oxide hydrate by hydrolysis. The remaining sulfates of the solution are then obtained in solid form by evaporation, or by precipitation with acetone, and the solid is then roasted to convert the aluminum and iron to the oxide. After leaching out the sodium sulfate with water, the aluminum and iron oxide are separated by the Bayer process, which works in this case even though x-ray diffusion patterns show that the aluminum oxide is mainly .alpha.Al.sub.2 O.sub.3.

摘要翻译： 用铝酸盐从铝土矿中除去氧化铝的拜耳法的红泥副产物用浓硫酸或三氧化硫气体消化以产生硫酸盐，其可以用水浸出所得物料。 然后将溶液在pH为1下加热以通过水解沉淀出氧化钛水合物。 然后通过蒸发或通​​过用丙酮沉淀获得固体形式的溶液的剩余硫酸盐，然后将固体焙烧以将铝和铁转化为氧化物。 在用水浸出硫酸钠后，铝和氧化铁通过拜耳法分离，这在这种情况下工作，即使x射线扩散图案显示氧化铝主要是αAl 2 O 3。

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。

公开(公告)号：US3954945A

公开(公告)日：1976-05-04

申请号：US301390

申请日：1972-10-27

申请人： Ludwig Lange ,  Jean Diether ,  Axel Volling ,  Hans Klebe

发明人： Ludwig Lange ,  Jean Diether ,  Axel Volling ,  Hans Klebe

IPC分类号： C01G1/02 ,  C01B13/14 ,  C01B13/22 ,  C01B13/24 ,  C01B33/16 ,  C01B33/18 ,  C01D1/02 ,  C01B33/12 ,  C01F7/02 ,  C01G23/06 ,  C01G49/02

CPC分类号： C01B33/183 ,  C01B13/22 ,  C01P2006/12

摘要： Process for the production of a finely divided oxide of a metal or silicon by the hydrolytic conversion of a volatile corresponding metal halide or silicon halide in a flame, said process comprising feeding the volatile halide in a mixture with a combustible hydrogen-containing gas and air or oxygen to a burner provided with a mouth emitting a flame, burning the mixture in a fire tube to form a first portion of water vapor, said burner surrounded by an annular chamber forming a nozzle through which hydrogen is passed to keep the mouth of the burner free of attachments of solid substances, the quantity of oxygen or air being sufficient for the practically complete combustion of the combustible gas, and the quantities of oxygen or air and combustible gas being sufficient to produce the first portion of water vapor which will at least suffice for the hydrolysis of the volatile halides, and further wherein said flame is allowed to burn in an atmosphere consisting of gases containing a second portion of water vapor, to avoid the formation of halogen gas in waste gases and separating the resulting oxide from other reaction products. The finely divided oxides are useful as additives and fillers in the manufacture of coatings, adhesives and elastomers.

摘要翻译： 通过挥发性相应的金属卤化物或卤化硅在火焰中的水解转化来生产金属或硅的细碎氧化物的方法，所述方法包括将挥发性卤化物与可燃的含氢气体和空气 或氧气提供给设置有发射火焰的口的燃烧器，将火焰管中的混合物燃烧以形成水蒸气的第一部分，所述燃烧器由形成喷嘴的环形室围绕，通过该喷嘴通过氢气以保持 燃烧器没有固体物质的附着物，氧气或空气的量足以实现可燃气体的实际完全燃烧，并且氧气或空气和可燃气体的量足以产生第一部分水蒸汽，这至少将至少 足以使挥发性卤化物水解，并且其中所述火焰允许在由含有seco的气体组成的气氛中燃烧 并避免在废气中形成卤素气体，并将得到的氧化物与其他反应产物分离。 精细分散的氧化物可用作涂料，粘合剂和弹性体制造中的添加剂和填料。

公开(公告)号：US3925531A

公开(公告)日：1975-12-09

申请号：US34945473

申请日：1973-04-09

申请人： BRITISH TITAN LTD

发明人： MOSS JOHN HICKMAN ,  LENG BARRIE

IPC分类号： C01G23/02 ,  C22B34/12 ,  C01G23/06 ,  C01G49/06

CPC分类号： C01G23/028 ,  C22B34/1222 ,  Y02P10/23

摘要： A process for the production of titanium tetrafluoride by heating together ferric fluoride and a iron-containing titaniferous material.

摘要翻译： 通过一起加热氟化铁和含铁的含钛材料来生产四氟化钛的方法。

公开(公告)号：US3919388A

公开(公告)日：1975-11-11

申请号：US34945373

申请日：1973-04-09

申请人： BRITISH TITAN LTD

发明人： THOMPSON PETER CHARLES ,  BOWBEER THOMAS AISBITT

IPC分类号： C01G23/047 ,  C01G23/02 ,  C22B34/12 ,  C01G23/06 ,  C01G23/08

CPC分类号： C22B34/1245 ,  C01G23/028 ,  C22B34/125 ,  Y02P10/212

摘要： Process for the production of pigmentary titanium dioxide by converting an iron-containing titaniferous material such as ilmenite to titanium tetrafluoride and thereafter reacting the titanium tetrafluoride with sulphuric acid to form titanium sulphate, converting titanium sulphate to an aqueous acidic solution thereof and subjecting the solution to thermal hydrolysis to precipitate hydrous titanium dioxide which is then calcined.

摘要翻译： 通过将含钛含钛材料如钛铁矿转化为四氟化钛，然后使四氟化钛与硫酸反应形成硫酸钛，将硫酸钛转化为其酸性水溶液，并将溶液 热水解沉淀出水合二氧化钛，然后煅烧。

公开(公告)号：US3903239A

公开(公告)日：1975-09-02

申请号：US45698774

申请日：1974-04-01

申请人： ONTARIO RESEARCH FOUNDATION

发明人： BERKOVICH SERGE A

IPC分类号： C01G23/053 ,  C22B34/12 ,  C01G23/04 ,  C01G23/06

CPC分类号： C22B34/1245 ,  C01G23/0538 ,  Y10S423/01

摘要： Titanium dioxide is recovered from ilmenite in high purity and high yield. The ore is leached with concentrated hydrochloric acid at room temperature to dissolve at least 80% of the titanium and iron values of the ore and to leave gangue material substantially undissolved. After separation from solid gangue material and conversion of ferric iron to ferrous iron, the titanium chlorides are hydrolyzed and titanium oxyhydrate is precipitated. A substantial proportion of the ferrous chloride may be removed from the solution by crystallization prior to the hydrolysis of the titanium chlorides. The titanium oxyhydrate, after separation from the mother liquor, and purified, if necessary to remove traces of ferric materials, is dried and converted into substantially pure pigment grade titanium dioxide. The iron values may be recovered from the mother liquor and a closed hydrochloric acid cycle may be established.

摘要翻译： 二氧化钛以高纯度和高收率从钛铁矿中回收。 矿石在室温下用浓盐酸浸出，以溶解矿石的钛和铁的至少80％，并留下g石材料基本上不溶解。 从实心ang石材料中分离出来，并将三价铁转化为二价铁，氯化钛被水解，沉淀出钛氧化钛。 在氯化钛水解之前，通过结晶可以从溶液中除去相当大比例的氯化亚铁。 将氧化钛水合物从母液中分离出来，并且如果需要去除痕量的铁质材料，则被干燥并转化为基本上纯的颜料级二氧化钛。 可以从母液中回收铁值，并建立封闭的盐酸循环。