公开(公告)号：US07537749B2

公开(公告)日：2009-05-26

申请号：US10574454

申请日：2004-10-01

申请人： Gerhard Auer ,  Berndt-Ullrich Köhler ,  Benno Laubach

发明人： Gerhard Auer ,  Berndt-Ullrich Köhler ,  Benno Laubach

IPC分类号： C01B7/01 ,  C01B17/90

CPC分类号： C01B17/901 ,  C01G23/0532 ,  C01G49/14 ,  Y10S423/01 ,  Y10S423/02

摘要： The invention concerns a method for processing heavy metal-laden spent sulfuric acid. For this, iron-laden spent sulfuric acid or iron-laden sulfuric materials obtained therefrom are reacted with a material that contains iron chloride and optionally other metal chlorides, producing iron (II) sulfate. The spent sulfuric acid preferably derives from titanium dioxide production.

摘要翻译： 本发明涉及一种处理重金属负载硫酸的方法。 为此，将由此获得的含铁的废硫酸或含铁的硫酸材料与含有氯化铁和任选的其它金属氯化物的材料反应，生成硫酸铁（II）。 废硫酸优选来源于二氧化钛生产。

公开(公告)号：US07097816B2

公开(公告)日：2006-08-29

申请号：US10897602

申请日：2004-07-23

申请人： Alexander Kehrmann

发明人： Alexander Kehrmann

IPC分类号： C01G49/14

CPC分类号： C01G49/14 ,  C01B7/035 ,  C01B7/0737 ,  C23G1/36 ,  Y10S423/02

摘要： In a method of producing ferrous sulfate heptahydrate, ferrous sulfate monohydrate is converted in a crystallization reactor in the presence of water into ferrous sulfate heptahydrate as crystallized product, and water is subsequently isolated from the ferrous sulfate heptahydrate. Ferrous sulfate monohydrate is obtained from a pickling solution containing ferrous chloride, hydrochloric acid and water and reacted in a precipitating reactor in the presence of excess sulfuric acid to form ferrous sulfate monohydrate and hydrochloric acid. The ferrous sulfate monohydrate is then dehumidified and converted in a crystallization reactor in the presence of excess water into ferrous sulfate heptahydrate.

摘要翻译： 在生产硫酸亚铁七水合物的方法中，硫酸亚铁一水合物在结晶反应器中在水存在下转化成硫酸亚铁七水合物作为结晶产物，随后从七水硫酸亚铁中分离出水。 硫酸亚铁一水合物由含氯化亚铁，盐酸和水的酸洗溶液得到，并在沉淀反应器中，在过量硫酸存在下反应生成硫酸亚铁一水合物和盐酸。 然后将硫酸亚铁一水合物在过量水的存在下在结晶反应器中进行除湿并转化成七水合硫酸亚铁。

公开(公告)号：US20060034738A1

公开(公告)日：2006-02-16

申请号：US11203979

申请日：2005-08-16

申请人： Albert Lebl

发明人： Albert Lebl

IPC分类号： C01G49/02 ,  B01J19/00

CPC分类号： F26B3/12 ,  C01B13/18 ,  C01B13/34 ,  C01G1/02 ,  C01G49/06 ,  C01P2006/12 ,  C23G1/36 ,  Y10S423/01 ,  Y10S423/02

摘要： A process for the recovery of metal oxides from a solution containing metallic salts by spray roasting of these solutions. The process is particularly suitable for spray roasting spent pickling acids. The process feeds the solution to a reactor for spray roasting of the droplets in at least two stages, where at least one evaporation stage follows at least one conversion stage to convert the metal salts to metal oxides. The device for implementing the process includes a spray roasting reactor having a first heating zone to evaporate the water and a second heating zone to convert the metal salts to oxides.

公开(公告)号：US20040211464A1

公开(公告)日：2004-10-28

申请号：US10478311

申请日：2004-05-17

发明人： Yasuhito Inagaki

IPC分类号： G05D011/00

CPC分类号： G06Q10/06 ,  C01B17/69 ,  C01B17/88 ,  C01B17/901 ,  Y10S423/02 ,  Y10T137/0329 ,  Y10T137/2509

摘要： The present invention provides a system for recycling spent sulfuric acid, which aims at providing an industrially advantageous system featuring that spent sulfuric acid is effectively utilized at a place other than a discharge source regardless of geographical conditions, and also provides a method for recycling waste sulfuric acid, and recycled sulfuric acid. In the system, when spent sulfuric acid discharged or collected at a discharge source A is transported by a carrier unit B, and used at a user office C, a concentration of the spent sulfuric acid is measured and/or adjusted at least at one of the discharge source A, the carrier unit B, and the user office C. The spent sulfuric acid waste liquid discharged or collected at the discharge source A is reutilized by being mixed with at least one of a hydrogen peroxide solution and water.

摘要翻译： 本发明提供了一种回收废硫酸的系统，其目的在于提供一种工业上有利的系统，其特征在于废硫酸在排放源以外的地方有效地被利用，而不管地理条件如何，并且还提供了一种回收废硫酸 酸和再循环的硫酸。 在该系统中，当在排出源A排出或收集的废硫酸由载体单元B输送并在用户办公室C使用时，测量废弃硫酸的浓度和/或至少在 排出源A，运送单元B和用户办公室C.排出源A排出或收集的废硫酸废液通过与过氧化氢溶液和水中的至少一种混合而再利用。

公开(公告)号：US5308600A

公开(公告)日：1994-05-03

申请号：US924037

申请日：1992-10-23

申请人： Helmold von Plessen ,  Wolfram Fritsche-Lang ,  Horst Lorke

发明人： Helmold von Plessen ,  Wolfram Fritsche-Lang ,  Horst Lorke

IPC分类号： C01B17/90 ,  C01B17/94 ,  C07C201/08

CPC分类号： C01B17/90 ,  Y10S423/02

摘要： Process for conditioning waste sulfuric acid which is prone to precipitation of tars or resins, which comprises adding emulsifiers, preferably long-chain polyethers, to the waste sulfuric acid.

摘要翻译： PCT No.PCT / EP91 / 00329 Sec。 371日期：1992年10月23日 102（e）日期1992年10月23日PCT 1991年2月22日提交PCT公布。 出版物WO91 / 13828 日期1991年9月19日。用于调节容易沉淀焦油或树脂的废硫酸的方法，其包括向废硫酸中加入乳化剂，优选长链聚醚。

公开(公告)号：US5266297A

公开(公告)日：1993-11-30

申请号：US970591

申请日：1992-10-29

申请人： Shigemi Kodama

发明人： Shigemi Kodama

IPC分类号： C01G49/14 ,  C02F1/52 ,  C02F1/72 ,  C02F3/12 ,  C01G49/02

CPC分类号： C02F3/1294 ,  C01G49/14 ,  C02F1/5236 ,  C02F1/72 ,  C02F1/725 ,  Y02W10/15 ,  Y10S423/01 ,  Y10S423/02

摘要： A liquid oxidizing system has a closed circuit in which a liquid containing matter to be oxidized is circulated. The circuit is provided with an ejector for forming a jet stream of the liquid into which oxygen, or both oxygen and an oxidizing catalyst are supplied. The oxygen (and the catalyst) rapidly contacts the matter to be oxidized in the jet stream and oxidizes it. The system is not only applicable to the treatment of waste water, such as from factories, but also useful for making a product by oxidizing a liquid, e.g. iron polysulfate which is a good coagulant.

摘要翻译： 液体氧化系统具有闭合回路，其中含有待氧化物质的液体循环。 电路设置有喷射器，用于形成液体的喷射流，氧气或氧气和氧化催化剂都被供应到喷射流中。 氧气（和催化剂）在喷射流中快速接触待氧化的物质并将其氧化。 该系统不仅适用于废水的处理，例如来自工厂，也可用于通过氧化液体来制造产品，例如， 多硫酸铁是一种很好的凝结剂。

公开(公告)号：US5089452A

公开(公告)日：1992-02-18

申请号：US698364

申请日：1991-05-09

申请人： Tadasi Nakamura ,  Kinya Tsuji ,  Yoriko Obata

发明人： Tadasi Nakamura ,  Kinya Tsuji ,  Yoriko Obata

IPC分类号： B01J23/80 ,  C07B61/00 ,  C07C29/154 ,  C07C31/04

CPC分类号： C07C29/154 ,  B01J23/80 ,  Y02P20/52 ,  Y10S423/02

摘要： A method for preparing a catalyst precursor for methanol synthesis using copper sulfate recovered from low-cost copper etching waste solution as the source of copper, which comprises using recovered copper sulfate containing the mother liquor in the amount of 10% by weight or less, and adding a zinc or aluminum compound, and, optionally, further adding a boron compound to the recovered copper sulfate. The catalyst prepared by such method has all of the characteristics of a catalyst prepared with an expensive starting material, such as conventional metal nitrates. By using such method, the catalyst cost can be reduced to a great extent, thus rendering the method of great commercial value.

公开(公告)号：US5032376A

公开(公告)日：1991-07-16

申请号：US413609

申请日：1989-09-28

申请人： Wolfgang Kladnig

发明人： Wolfgang Kladnig

IPC分类号： C04B35/46 ,  C01G23/00 ,  C04B35/478

CPC分类号： C01G23/003 ,  C04B35/478 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  Y10S423/01 ,  Y10S423/02

摘要： An improved method for producing aluminum titanate powder material for making aluminum titanate ceramics.

摘要翻译： 一种制造钛酸铝陶瓷的钛酸铝粉末材料的改进方法。

公开(公告)号：US4741776A

公开(公告)日：1988-05-03

申请号：US761326

申请日：1985-07-30

申请人： Gerald C. Bye ,  Kenneth B. Matthews

发明人： Gerald C. Bye ,  Kenneth B. Matthews

IPC分类号： B09B3/00 ,  C04B14/00 ,  C04B28/04 ,  C04B7/02 ,  C04B7/14 ,  C04B7/34

CPC分类号： C04B28/04 ,  Y02W30/91 ,  Y02W30/92 ,  Y02W30/95 ,  Y10S423/02

摘要： A method of processing waste material comprises treating the material with flue dust and bonding it to form a solid mass with cement powder, e.g. Portland cement. Acidic liquors containing heavy metals can be processed. Suitable flue dust is obtained from cement manufacture.

摘要翻译： PCT No.PCT / GB81 / 00187 Sec。 371日期1982年5月6日 102（e）日期1982年5月6日PCT提交1981年9月11日PCT公布。 出版物WO82 / 00998 日期：1982年4月1日。一种处理废料的方法包括用烟道灰处理材料并将其粘合以形成具有水泥粉末的固体块，例如水泥粉末。 硅酸盐水泥。 可以处理含有重金属的酸性液体。 合适的烟道灰从水泥制造中获得。

公开(公告)号：US3984312A

公开(公告)日：1976-10-05

申请号：US411367

申请日：1973-10-31

申请人： Jacques M. Dulin ,  Edward C. Rosar ,  Joseph M. Genco ,  Harvey S. Rosenberg

发明人： Jacques M. Dulin ,  Edward C. Rosar ,  Joseph M. Genco ,  Harvey S. Rosenberg

IPC分类号： C02F1/66 ,  B01D53/50 ,  B01D53/77 ,  C01B17/96 ,  C01G49/00 ,  C02F1/52 ,  C02F1/58 ,  C02F3/34 ,  C02F11/00 ,  C02F101/10 ,  C02F101/16 ,  C02F103/18 ,  C02B1/34

CPC分类号： C02F1/5236 ,  B01D53/507 ,  C01G49/009 ,  C02F11/008 ,  C01P2004/10 ,  C01P2004/80 ,  C02F2103/18 ,  Y02P20/13 ,  Y10S106/01 ,  Y10S423/02 ,  Y10S423/17

摘要： Process for insolubilizing water soluble wastes from alkaline sodium or ammonium type sulfur dioxide control systems used in conjunction with industrial or power plants. The sodium or ammonium sulfite or sulfate wastes are reacted in solution with ferric ions and sulfuric acid to produce an insoluble basic, hydrous or anhydrous, sodium and/or ammonium hydroxy ferric sulfate or sulfite compounds of the generic type M.sub.v (Na, NH.sub.4).sub.w Fe.sub.x (SO.sub.u).sub.y (OH.sub.z)nH.sub.2 O, wherein M is selected from an alkali metal other than sodium, or an authigenic metal or other cation present in industrial or power plant wastes, v is selected from zero to six, w is selected from zero to five, x is selected from zero to six, y is selected from one to five, u is 3 and/or 4, z is selected from zero to 12, and n is selected from zero to 20. Principal end product compounds include Natrojarosite, Ammoniojarosite, Metasideronatrite, Sideronatrite, Depegite, Rosarite, Iriite, and mixtures thereof. The reaction takes place at an acid pH in a temperature ranging from about 50.degree.-300.degree. F. and may occur in single or multi-stage reactors. Air and/or bacterial activation at a pH of less than about 5.5 may be employed. The end product basic, sodium and/or ammonium hydroxy ferric sulfate and sulfite compounds are water insoluble as compared to the standard in the industry, CaSO.sub.4, and may be disposed of by simple landfill without the water pollution hazards inherent with landfilling of wet or dry sodium or ammonium sulfite and/or sulfate baghouse or wet scrubber wastes. The process also uses, and conversely can dispose of, other pollutants as reactants, such as hot waste water from power plant ash tanks, waste sulfuric acid, pickle liquior, acid mine water (blackwater), iron slag or scrap, or gob or pyrite leachate as part of an integrated, multiple-pollutant disposal process.