公开(公告)号：US10745279B2

公开(公告)日：2020-08-18

申请号：US16017839

申请日：2018-06-25

申请人： EASYMINING SWEDEN AB

发明人： Yariv Cohen ,  Patrik Enfält

IPC分类号： C01B25/32 ,  C01B25/28 ,  C01B25/36 ,  C01B25/37 ,  C01G49/02 ,  C01G49/10 ,  C01G49/14 ,  C01F7/34 ,  C01F7/56 ,  C01F7/74 ,  C01G45/02 ,  C01G49/00 ,  C01G1/12 ,  C05B11/12 ,  C05B11/16 ,  C05F7/00 ,  C02F11/00 ,  C01F11/46 ,  C02F1/66 ,  C02F101/10

摘要： A method for production of phosphate compounds comprises dissolving of a raw material comprising phosphorus, aluminium and iron, in a mineral acid. Insoluble residues from the dissolving step are separated. Iron hydroxide is added causing precipitation of phosphate compounds. The precipitated phosphate compounds are removed. The phosphate compounds are dissolved by an alkaline solution. Iron hydroxide is filtered out. Lime is added, causing precipitation of calcium phosphate. The precipitated calcium phosphate is separated. The leach solution after the separating of precipitated calcium phosphate is recycled to be used for dissolving phosphate compounds by an alkaline solution.

公开(公告)号：US09656887B2

公开(公告)日：2017-05-23

申请号：US14061544

申请日：2013-10-23

申请人： The Water Company

发明人： Brian B. Elson ,  Michael Fallbach

IPC分类号： C02F1/52 ,  B01D21/01 ,  B01D37/00 ,  C02F1/38 ,  C01F7/74 ,  C01F11/46 ,  C01F7/76 ,  C02F1/24 ,  C02F1/461 ,  C02F1/56 ,  C02F1/66 ,  B01D21/00 ,  C02F1/00 ,  B03D3/00 ,  C01F7/00 ,  C01F11/00 ,  C02F1/68 ,  C02F101/20 ,  C02F103/06 ,  C02F103/10

CPC分类号： C02F1/5245 ,  B01D21/01 ,  C01F7/74 ,  C01F7/741 ,  C01F7/767 ,  C01F11/46 ,  C02F1/24 ,  C02F1/38 ,  C02F1/461 ,  C02F1/46114 ,  C02F1/4618 ,  C02F1/56 ,  C02F1/66 ,  C02F1/687 ,  C02F2001/46133 ,  C02F2001/46161 ,  C02F2101/20 ,  C02F2103/06 ,  C02F2103/10

摘要： Methods of removing one or more oxyanions from an aqueous fluid can comprise increasing the pH of an aqueous fluid containing one or more oxyanions and contacting the aqueous fluid with aluminum metal.

公开(公告)号：US5879651A

公开(公告)日：1999-03-09

申请号：US815988

申请日：1997-03-10

申请人： Pascal Dufour

发明人： Pascal Dufour

IPC分类号： B01D21/01 ,  C01F7/00 ,  C01F7/74 ,  C02F1/52 ,  C01F7/68

CPC分类号： C01F7/002 ,  C02F1/5245 ,  Y02W10/37

摘要： The present invention relates to a process for the preparation of basic polyaluminium chlorosulphates. This process consists, after basification, in carrying out cooking at a temperature between 60.degree. C. and 95.degree. C. such that the cooking time is proportionately shorter than the higher cooking temperature. The polychlorosulphates obtained according to the process of the invention can be used for the treatment of drinking water, effluents and in the paper industry.

摘要翻译： 本发明涉及一种制备碱性聚氯化亚硫酸铵的方法。 该方法在碱化后，在60℃至95℃的温度下进行烹饪，使得烹饪时间比较高的烹调温度成比例地短。 根据本发明方法获得的聚氯硫酸盐可用于处理饮用水，废水和造纸工业。

公开(公告)号：US4826606A

公开(公告)日：1989-05-02

申请号：US47425

申请日：1987-05-06

申请人： Larry W. Becker ,  John B. Lukas

发明人： Larry W. Becker ,  John B. Lukas

IPC分类号： C01F7/00 ,  C01F7/34 ,  C01F7/74 ,  C02F1/54 ,  C02F1/56

CPC分类号： C01F7/74 ,  C01F7/007 ,  C01F7/34 ,  C02F1/54 ,  C01P2002/02

摘要： Utilization of a cationic polymer as a settling aid in the recovery of the aluminum hydroxide and an anionic polymer to dewater the aluminum hydroxide prior to redissolution not only improves the process of making basic aluminum compounds by speeding settling and improving filterability, but also unexpectedly yields a product that has superior effectiveness as a water treatment chemical.According to the invention, a dilute solution of alum is neutralized with a base to a pH below about 6.0, preferably below 5.5, to form a suspension of aluminum hydroxide. A cationic polymer is then added to the suspension to assist in the settling of the aluminum hydroxide. When settling is substantially complete, the solution is decanted from the aluminum hydroxide and an anionic polymer is added to dewater the aluminum hydroxide. The dewatered material is collected as a filter cake containing amorphous aluminum hydroxide, the cationic polymer and the anionic polymer.The filter cake formed in this manner can be combined with aluminum sulfate or other aluminum species to form basic aluminum complexes. Surprisingly, however, the basic aluminum compounds formed from the filter cake are more effective in the reduction of water turbidity than comparable basic aluminum compounds formed without the use of the cationic and anionic polymers.

摘要翻译： 利用阳离子聚合物作为沉淀助剂来回收氢氧化铝和阴离子聚合物以在再溶解之前脱水氢氧化铝不仅改善了通过加速沉降和改善过滤性而制备碱性铝化合物的方法，而且还意外地产生 作为水处理化学品具有优异的有效性的产品。 根据本发明，将明矾的稀溶液用碱中和至pH低于约6.0，优选低于5.5，以形成氢氧化铝的悬浮液。 然后将阳离子聚合物加入到悬浮液中以有助于氢氧化铝的沉降。 当沉降基本上完成时，将溶液从氢氧化铝中倾出，并加入阴离子聚合物以使氢氧化铝脱水。 收集脱水的材料作为含有无定形氢氧化铝，阳离子聚合物和阴离子聚合物的滤饼。 以这种方式形成的滤饼可以与硫酸铝或其它铝物质组合以形成碱性铝络合物。 然而，令人惊奇的是，与不使用阳离子和阴离子聚合物形成的相当的碱性铝化合物相比，由滤饼形成的碱性铝化合物在降低水浊度方面更有效。

公开(公告)号：US4566986A

公开(公告)日：1986-01-28

申请号：US646012

申请日：1984-08-31

申请人： John J. Waldmann

发明人： John J. Waldmann

IPC分类号： C01B33/20 ,  C01F7/00 ,  C01F7/68 ,  C01G49/00 ,  C02F1/52 ,  C02F5/08 ,  C01F7/16 ,  C01F7/74

CPC分类号： C01F7/68 ,  C01B33/20 ,  C01F7/002 ,  C01G49/009 ,  C02F1/5236 ,  C02F1/5245 ,  C01P2006/10 ,  C01P2006/22

摘要： The present invention is directed to a new and useful group of calcium, zinc and magnesium flocculating agents which may be beneficially utilized to treat and purify waste water and/or other waste liquids resulting from a variety of industrial processes. The general ion free formula of these inorganic flocculating agents is represented as follows:(Me.sub.2 O.sub.3).sub.m.sup..cndot. (Me.sub.2 O.sub.3 Cl).sub.(m+z).sup..cndot. (MeO).sub.n.sup..cndot. (SiO.sub.2).sub.t.sup..cndot. (SO.sub.4).sub.yThese flocculating agents may also be represented by the theoretical formula of:Me.sub.n.sup.II Me.sub.o.sup.II Me.sub.m.sup.III (OH).sub.p (SiO.sub.2).sub.t.sup..cndot. (Aci).sub.z (SO.sub.4).sub.ywhere:(a) Me.sub.n.sup.II is selected from the divalent cationic group consisting of: (1) Ca.sup.2+, (2) Mg.sup.2+ and (3) Ca.sup.2+ and Mg.sup.2+ ;(b) Me.sub.o.sup.II is divalent cationic Fe.sup.2+ ;(c) Me.sub.m.sup.III is selected form the trivalent cationic group consisting of: (1) Al.sup.3+, (2) Fe.sup.3+ and (3) Al.sup.3+ and Fe.sup.3+ ;(d) Aci is selected from the monovalent anionic group consisting of: (1) Cl.sup.-, (2) Br.sup.-, (3) I.sup.-, (4) NO.sub.3.sup.-, (5) CH.sub.3 COO.sup.- and (6) two or more of Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3.sup.- and CH.sub.3 COO.sup.- (preferably Aci is Cl.sup.-);(e) n=1 to 5;(f) o=0 to 10;(g) m=1 to 15;(h) p=1 to 15;(i) z=0 to 15;(j) y=0 to 15; and(k) t=0 to 15.Processes for manufacturing flocculating agents belonging to this group of materials are also revealed.

摘要翻译： 本发明涉及一种新的和有用的钙，锌和镁絮凝剂组，其可有利地用于处理和净化由各种工业过程产生的废水和/或其它废液。 这些无机絮凝剂的无离子通式如下表示：（Me 2 O 3）m。（Me 2 O 3 Cl）（m + z）。（MeO）n。（SiO 2）t。（SO 4）y这些絮凝剂也可以 通过以下理论公式：MenIIMeoIIMemIII（OH）p（SiO2）t。（Aci）z（SO4）y其中：（a）MenII选自由以下组成的二价阳离子基团：（1）Ca2 +，（2）Mg2 +和 （3）Ca2 +和Mg2 +; （b）MeoII是二价阳离子Fe2 +; （c）MemIII由以下组成的三价阳离子基团选择：（1）Al 3+，（2）Fe 3+和（3）Al 3+和Fe 3+; （d）Aci选自由以下组成的一价阴离子基团：（1）Cl-，（2）Br-，（3）I，（4）NO 3 - ，（5）CH 3 COO-和（6）两个或更多个 的Cl-，Br-，I-，NO 3 - 和CH 3 COO-（优选Aci是Cl - ）; （e）n = 1〜5; （f）o = 0〜10; （g）m = 1〜15; （h）p = 1〜15; （i）z = 0〜15; （j）y = 0〜15; 和（k）t = 0至15.还显示了用于制造属于该组材料的絮凝剂的方法。

公开(公告)号：US4474735A

公开(公告)日：1984-10-02

申请号：US425663

申请日：1982-09-28

申请人： Jussi K. Rastas ,  Kauko J. Karpale ,  Heikki Tiitinen

发明人： Jussi K. Rastas ,  Kauko J. Karpale ,  Heikki Tiitinen

IPC分类号： C01F7/74 ,  C01F7/76 ,  C01G1/00 ,  C01G53/00 ,  C22B7/00 ,  C22B21/00 ,  C22B34/22 ,  C22B34/34 ,  C01G39/00 ,  C01G51/00

CPC分类号： C01F7/762 ,  C01F7/74 ,  C22B21/003 ,  C22B23/043 ,  C22B34/22 ,  C22B34/225 ,  C22B34/34 ,  C22B34/345 ,  C22B7/009 ,  Y02P10/214 ,  Y02P10/23 ,  Y02P10/234

摘要： A process for the recovery of valuable metals from roasted crude-oil sulfur-extraction catalyst waste is disclosed. In this process the value metals can be separated from aluminum in a single stage by treating the waste at elevated temperature and pressure with such an amount of sulfate solution that the waste dissolves and the aluminum simultaneously precipitates as alunite, which is separated from the solution which contains the other value metals. A sulfate solution is preferably added in such an amount that the concentration of sulfuric acid in the solution is 2-30 g/l at the end of the stage.

摘要翻译： 公开了一种从焙烧的原油硫萃取催化剂废物中回收有价金属的方法。 在这个过程中，通过在高温和高压下处理废物，废金属溶解的硫酸盐溶液和铝同时沉淀出来，从而将单体金属中的金属与铝分离， 含有其他值金属。 优选以硫酸浓度在阶段结束时为2-30g / l的量添加硫酸盐溶液。

公开(公告)号：US4339415A

公开(公告)日：1982-07-13

申请号：US213273

申请日：1980-12-05

申请人： John I. Choi ,  Bruce E. Kurtz ,  Anatoli Omelian

发明人： John I. Choi ,  Bruce E. Kurtz ,  Anatoli Omelian

IPC分类号： C01F7/56 ,  C01F7/74

CPC分类号： C01F7/743 ,  C01F7/56

摘要： A process for the recovery of soluble alumina values from alumina-bearing ores comprising simultaneously contacting a stream containing an effective amount of a reducing agent such as SO.sub.2 and a stream containing an effective amount of an oxidizing agent such as Cl.sub.2 with an aqueous slurry of the alumina-bearing ores for a time sufficient to remove at least about 50 weight percent of the soluble alumina values from said ores is disclosed.

摘要翻译： 一种从含氧矿石矿石回收可溶性氧化铝值的方法，包括同时使含有有效量的还原剂如SO2的流与含有有效量的氧化剂如Cl 2的物流与 公开了一种足以从所述矿石中除去至少约50重量％的可溶性氧化铝值的氧化铝轴承矿石。

公开(公告)号：US4332778A

公开(公告)日：1982-06-01

申请号：US164485

申请日：1980-06-30

申请人： Robert W. Hobday

发明人： Robert W. Hobday

IPC分类号： C01F7/74 ,  C01G15/00 ,  C01F7/26 ,  C22B21/00

CPC分类号： C01F7/74

摘要： A non-evaporative process for the production of drier aluminum sulfate is disclosed. A purified alum liquor containing 6 to 11% alumina as Al.sub.2 O.sub.3 is contacted with aluminum trihydrate and additional sulfuric acid in amounts sufficient to produce drier, low iron aluminum sulfate.

摘要翻译： 公开了用于生产干燥硫酸铝的非蒸发方法。 将含有6至11％氧化铝作为Al 2 O 3的纯化的明矾液与足以产生干燥的低铁硫酸铝的量的三水合铝和另外的硫酸接触。

公开(公告)号：US4171205A

公开(公告)日：1979-10-16

申请号：US973932

申请日：1978-12-28

申请人： Jean M. Lamerant ,  Joseph Cohen ,  Pierre Maurel

发明人： Jean M. Lamerant ,  Joseph Cohen ,  Pierre Maurel

IPC分类号： C01F7/74 ,  B01D9/02

CPC分类号： C01F7/746

摘要： Process for recovering aluminum in the form of a specific acid sulfate from an initial solution containing aluminum in the form of dissolved aluminum sulfate hydrate in which the specific acid sulfate is of the formula Al.sub.2 (SO.sub.4).sub.3.0.5H.sub.2 SO.sub.4.11 to 12 H.sub.2 O and in which the initial solution is sequentially treated in a series of crystallizers, wherein successive crystallizers are maintained at a predetermined decreased generally fixed temperature such that in each crystallizer a state of supersaturation of aluminum acid sulfate exists and the parameters attendant operation of each crystallizer insure that a state of static equilibrium of precipitation of product is generally reached before the process solution/slurry is passed to a successive crystallizer, or filtered for recovery of product.

摘要翻译： 从具有硫酸铝水合物形式的铝的初始溶液中回收特定酸式硫酸盐形式的铝的方法，其中特定酸式硫酸盐具有式Al 2（SO 4）3.0·5H 2 SO 4·11·12H 2 O和 其中初始溶液在一系列结晶器中连续处理，其中连续的结晶器保持在预定的降低的通常固定的温度，使得在每个结晶器中存在酸式硫酸铝的过饱和状态，并且每个结晶器的伴随操作的参数确保 通常在将工艺溶液/浆料通入连续结晶器之前通常达到产物沉淀的静态平衡状态，或过滤以回收产物。

公开(公告)号：US3925532A

公开(公告)日：1975-12-09

申请号：US44112874

申请日：1974-02-11

申请人： GRIFFITHS KENNETH F

发明人： GRIFFITHS KENNETH F

IPC分类号： C01F7/74

CPC分类号： C01F7/741

摘要： There is disclosed a process for manufacturing high purity aluminum sulfate by reacting aluminum containing metal impurities with sulfuric acid in the presence of liquid mercury. During the reaction period, the metallic impurities in the aluminum are absorbed into the mercury and the aluminum sulfate produced. The impurity containing mercury is thereafter separated from the aluminum sulfate product. If further desired the impurities may be separated from the mercury and the thus purified mercury is, in a preferred embodiment, recycled to the reaction zone.

摘要翻译： 公开了在液态汞存在下使含铝金属杂质与硫酸反应来制造高纯度硫酸铝的方法。 在反应期间，铝中的金属杂质被吸收到汞中并产生硫酸铝。 然后从硫酸铝产品中分离出含有汞的杂质。 如果进一步需要，杂质可以与汞分离，并且在一个优选的实施方案中，由此纯化的汞被再循环到反应区。