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1. 发明申请

WO2014023755A1 METAL LEACH AND RECOVERY PROCESS 审中-公开
标题翻译：金属浸出和回收工艺
公开(公告)号：WO2014023755A1
公开(公告)日：2014-02-13
申请号：PCT/EP2013/066528
申请日：2013-08-07
申请人： BASF SE , BASF SCHWEIZ AG
发明人： NISBETT, Andrew , ADKINS, Stephen , FLANAGAN, Ian John , BERGER, Alexsandro
IPC分类号： C22B3/20 , B01D21/01 , C22B15/00
CPC分类号： C22B3/44 , B01D21/01 , C22B3/04 , C22B3/205 , C22B15/0084 , Y02P10/234 , Y02P10/236
摘要： The present invention relates to a metal leach and recovery process. The process involves subjecting a metal bearing material to a reactive process by combining said metal bearing material with a leaching agent to liberate at least one metal value and forming a first aqueous leach pulp. This first aqueous leach pulp is subjected to a solid liquid separation step thereby providing a first clarified aqueous leach solution and a second aqueous leach pulp. The first clarified aqueous leach solution is then subjected to solvent extraction thereby obtaining the first aqueous raffinate. The second aqueous leach pulp is subjected to at least two further solid liquid separation steps of which some or all are in a counter current decantation (CCD) arrangement. Each of the solid liquid separation steps of the CCD arrangement results in an aqueous liquor and aqueous suspension of solids wherein each aqueous suspension of solids resulting from each solid liquid separation step of the CCD arrangement is passed to the subsequent solid liquid separation step and the suspension of solids resulting from the final solid liquid separation step is removed from the process. Further, each aqueous liquor resulting from each solid liquid separation step of the CCD arrangement is passed to the previous solid liquid separation step. The further solid liquid separation steps result in at least one further clarified aqueous leach solution. The at least one further clarified aqueous leach solution is/are subjected to solvent extraction thereby obtaining at least one further aqueous raffinate. At least a portion of the one or more of the at least one further aqueous raffinates is fed into the final solid liquid separation is of the CCD arrangement. The process provides a flocculation system comprising either: (i) addition of an organic polymeric flocculant to or prior to at least one solid liquid separation step, which polymeric flocculant is formed from 2-acrylamido-2-methylpropane sulphonic acid (ATBS) or salts thereof as a homopolymer or copolymer with at least one water-soluble ethylenically unsaturated monomer; or (ii) addition of an organic polymeric flocculant and at least one support agent to or prior to at least one solid liquid separation step, which at least one support agent is selected from at least one of the group consisting of oxidising agents, reducing agents, irradiation and free radical producing agents. The process provides significantly improved metal extraction and recovery.
摘要翻译：本发明涉及金属浸出和回收方法。该方法包括通过将所述金属轴承材料与浸出剂组合以使金属轴承材料进行反应过程以释放至少一种金属值并形成第一含水浸出纸浆。对该第一含水浸出纸浆进行固液分离步骤，从而提供第一澄清的含水浸出溶液和第二含水浸出纸浆。然后对第一澄清的含水浸出溶液进行溶剂萃取，从而获得第一含水萃余液。经受至少两个另外的固体液体分离步骤，其中一些或全部是逆流倾析（CCD）排列。 CCD装置的每个固体液体分离步骤都得到含水液体和固体的水性悬浮液，其中由CCD装置的每个固体液体分离步骤得到的固体的每个水性悬浮液被传送到随后的固体液体分离步骤和悬浮液从最终固液分离步骤得到的固体从该方法中除去。此外，由CCD装置的每个固液分离步骤得到的每个含水液体被传送到先前的固液分离步骤。进一步的固体液体分离步骤导致至少一种进一步澄清的含水浸出溶液。对至少一种进一步澄清的含水浸出溶液进行溶剂萃取，从而获得至少一种其它含水萃余液。将至少一种其它含水残液中的一种或多种的至少一部分进料到CCD装置的最终固液分离中。该方法提供了一种絮凝体系，其包括：（i）在至少一个固体液体分离步骤之前或之前加入有机聚合物絮凝剂，所述聚合絮凝剂由2-丙烯酰氨基-2-甲基丙烷磺酸（ATBS）或盐作为与至少一种水溶性烯属不饱和单体的均聚物或共聚物; 或（ii）向至少一个固体液体分离步骤之前或之前加入有机聚合物絮凝剂和至少一种载体，所述至少一种载体剂选自氧化剂，还原剂，照射和自由基生成剂。该方法提供了显着改进的金属萃取和回收。

2. 发明申请

WO2014019993A1 CONCENTRATION OF SUSPENSIONS 审中-公开
标题翻译：停产浓度
公开(公告)号：WO2014019993A1
公开(公告)日：2014-02-06
申请号：PCT/EP2013/065923
申请日：2013-07-29
申请人： BASF SE , BASF SCHWEIZ AG
发明人： BERGER, Alexsandro , ADKINS, Stephen
IPC分类号： C02F1/56 , C02F1/72 , C02F1/70 , C02F1/76
CPC分类号： C02F1/56 , C02F1/70 , C02F1/72 , C02F1/722 , C02F1/76 , C02F1/78 , C02F2101/10 , C02F2103/10 , C02F2103/16 , C02F2301/046 , C02F2305/02 , C02F2305/12
摘要： A process of concentrating an aqueous suspension of solid particles, comprising the steps of, introducing the aqueous suspension of solid particles into a vessel, addition of at least one organic polymeric flocculant to the aqueous suspension of solid particles thereby forming flocculated solids, allowing the flocculated solids to settle to form a bed of solids in suspension at the lower end of the vessel, flowing the bed of solids from the vessel as an underflow, in which a portion of the bed of solids or underflow is transferred as a recycle stream to the vessel into or above the bed of solids, in which an active agent is added to the solids in the recycle stream and wherein the active agent is selected from the group consisting of free radical agents, oxidising agents and reducing agents.
摘要翻译：浓缩固体颗粒的水性悬浮液的方法，包括以下步骤：将固体颗粒的水性悬浮液引入容器中，向固体颗粒的水性悬浮液中加入至少一种有机聚合物絮凝剂，由此形成絮凝固体，使絮凝的固体沉降以在容器的下端形成悬浮液中的固体床，将固体床从容器中作为下溢流动，其中一部分固体床或下溢床作为循环流转移至容器进入固体床或其上方，其中将活性剂加入循环流中的固体，并且其中活性剂选自自由基试剂，氧化剂和还原剂。

3. 发明公开

EP2882878A1 METAL LEACH AND RECOVERY PROCESS 有权
标题翻译： METALLLAUGUNGS- UNDRÜCKGEWINNUNGSPROZESS
公开(公告)号：EP2882878A1
公开(公告)日：2015-06-17
申请号：EP13745846.9
申请日：2013-08-07
申请人： BASF SE , BASF Schweiz AG
发明人： NISBETT, Andrew , ADKINS, Stephen , FLANAGAN, Ian John , BERGER, Alexsandro
IPC分类号： C22B3/20 , B01D21/01 , C22B15/00
CPC分类号： C22B3/44 , B01D21/01 , C22B3/04 , C22B3/205 , C22B15/0084 , Y02P10/234 , Y02P10/236
摘要： The present invention relates to a metal leach and recovery process. The process involves subjecting a metal bearing material to a reactive process by combining said metal bearing material with a leaching agent to liberate at least one metal value and forming a first aqueous leach pulp. This first aqueous leach pulp is subjected to a solid liquid separation step thereby providing a first clarified aqueous leach solution and a second aqueous leach pulp. The first clarified aqueous leach solution is then subjected to solvent extraction thereby obtaining the first aqueous raffinate. The second aqueous leach pulp is subjected to at least two further solid liquid separation steps of which some or all are in a counter current decantation (CCD) arrangement. Each of the solid liquid separation steps of the CCD arrangement results in an aqueous liquor and aqueous suspension of solids wherein each aqueous suspension of solids resulting from each solid liquid separation step of the CCD arrangement is passed to the subsequent solid liquid separation step and the suspension of solids resulting from the final solid liquid separation step is removed from the process. Further, each aqueous liquor resulting from each solid liquid separation step of the CCD arrangement is passed to the previous solid liquid separation step. The further solid liquid separation steps result in at least one further clarified aqueous leach solution. The at least one further clarified aqueous leach solution is/are subjected to solvent extraction thereby obtaining at least one further aqueous raffinate. At least a portion of the one or more of the at least one further aqueous raffinates is fed into the final solid liquid separation is of the CCD arrangement. The process provides a flocculation system comprising either: (i) addition of an organic polymeric flocculant to or prior to at least one solid liquid separation step, which polymeric flocculant is formed from 2-acrylamido-2-methylpropane sulphonic acid (ATBS) or salts thereof as a homopolymer or copolymer with at least one water-soluble ethylenically unsaturated monomer; or (ii) addition of an organic polymeric flocculant and at least one support agent to or prior to at least one solid liquid separation step, which at least one support agent is selected from at least one of the group consisting of oxidizing agents, reducing agents, irradiation and free radical producing agents. The process provides significantly improved metal extraction and recovery.
摘要翻译：本发明涉及金属浸出和回收方法。该方法包括通过将所述金属轴承材料与浸出剂组合以使金属轴承材料进行反应过程以释放至少一种金属值并形成第一含水浸出纸浆。将该第一含水浸出纸浆进行固液分离步骤，从而提供第一澄清水溶液浸出溶液和第二含水浸提纸浆。然后对第一澄清的含水浸出溶液进行溶剂萃取，从而获得第一含水浸膏。经受至少两个另外的固体液体分离步骤，其中一些或全部是反向倾析（CCD）布置。 CCD装置的每个固体液体分离步骤都得到含水液体和固体含水悬浮液，其中由CCD装置的每个固体液体分离步骤得到的固体的每个含水悬浮液被传送到随后的固体液体分离步骤，悬浮液从最终固液分离步骤得到的固体从该方法中除去。此外，由CCD装置的每个固体液体分离步骤产生的每个含水液体被传递到先前的固体分离步骤。进一步的固体液体分离步骤导致至少一种进一步澄清的含水浸出溶液。对至少一种进一步澄清的含水浸出溶液进行溶剂萃取，从而获得至少一种其它含水萃余液。至少一种其中一种或多种另外的含水溶剂的至少一部分进料到CCD装置的最终固液分离中。该方法提供了一种絮凝体系，其包括：（i）在至少一个固体液体分离步骤之前或之前加入有机聚合物絮凝剂，该聚合物絮凝剂由2-丙烯酰氨基-2-甲基丙烷磺酸（ATBS）或其盐形成作为与至少一种水溶性烯属不饱和单体的均聚物或共聚物; 或（ii）在至少一个固体液体分离步骤之前或之前加入有机聚合物絮凝剂和至少一种载体剂，所述至少一种载体剂选自氧化剂，还原剂，照射和自由基生成剂。该方法提供了显着改进的金属萃取和回收。

4. 发明申请

WO2015173728A1 PROCESS FOR DEWATERING MINERAL TAILINGS BY THE TREATMENT OF THESE TAILINGS WITH AT LEAST TWO DIFFERENT POLYMERS OF DIFFERENT INTRINSIC VISCOSITIES 审中-公开
标题翻译：通过不同的内在粘度的两种不同聚合物处理这些尾矿来进行矿石尾矿的净化工艺
公开(公告)号：WO2015173728A1
公开(公告)日：2015-11-19
申请号：PCT/IB2015/053481
申请日：2015-05-12
申请人： BASF SE , BASF (CHINA) COMPANY LIMITED
发明人： ADKINS, Stephen
IPC分类号： C02F11/14 , C02F1/56
CPC分类号： C09K3/22 , C02F1/56 , C02F11/14 , C02F2103/365 , C08L33/14
摘要： A process of dewatering a suspension comprises particulate solids dispersed in an aqueous liquid, said particulate solids comprise clay and mineral particles of size below 50 μm. The process comprises the steps of (a) addition of at least one first polymer and of at least one second polymer to the suspension; and (b) dewatering the polymer treated suspension of step (a). The at least one first polymer and at least one second polymer have different intrinsic viscosities IV. The process is particularly suitable for the disposal of tailings and other waste material resulting from mining and mineral processing operations. The process is particularly suitable for the treatment of oil sand tailings and especially mature fine tailings (MFT) derived from oil sand tailings.
摘要翻译：将悬浮液脱水的方法包括分散在水性液体中的颗粒固体，所述颗粒固体包含尺寸低于50μm的粘土和矿物颗粒。该方法包括以下步骤：（a）向悬浮液中加入至少一种第一聚合物和至少一种第二聚合物; 和（b）使步骤（a）的聚合物处理的悬浮液脱水。所述至少一种第一聚合物和至少一种第二聚合物具有不同的特性粘度IV。该方法特别适用于采矿和矿物加工操作产生的尾矿和其他废料的处理。该方法特别适用于油砂尾矿，特别是来自油砂尾矿的成熟细尾矿（MFT）的处理。

5. 发明申请

WO2015173741A1 PROCESS FOR DEWATERING MINERAL TAILINGS BY THE TREATMENT OF THESE TAILINGS WITH AT LEAST ONE SURFACTANT AND AT LEAST ONE POLYMER 审中-公开
标题翻译：通过用至少一种表面活性剂和至少一种聚合物处理这些尾矿来清除矿物尾矿的方法
公开(公告)号：WO2015173741A1
公开(公告)日：2015-11-19
申请号：PCT/IB2015/053514
申请日：2015-05-13
申请人： BASF SE , BASF (CHINA) COMPANY LIMITED
发明人： ADKINS, Stephen
IPC分类号： B01D21/01 , C02F11/14
CPC分类号： C10G1/047 , B01D21/283 , B09B3/00 , B09B5/00 , C02F1/36 , C02F11/14 , C02F2103/10
摘要： Disclosed is a process of dewatering a suspension comprising particulate solids dispersed in an aqueous liquid, the particulate solids comprises clay and mineral particles of size below 50μm, which process comprises the steps of (a) subjecting the suspension to a kinetic energy stage to produce a modified suspension; (b) addition of at least one surfactant and at least one polymer to the suspension during and/or after step (a); (c) dewatering the treated suspension obtained after having conducted steps (a) and (b).
摘要翻译：公开了一种将包含分散在水性液体中的颗粒固体的悬浮液脱水的方法，所述颗粒固体包括尺寸小于50μm的粘土和矿物颗粒，该方法包括以下步骤：（a）使悬浮液经受动能阶段以产生改性悬浮液; （b）在步骤（a）期间和/或之后向悬浮液中加入至少一种表面活性剂和至少一种聚合物; （c）在进行步骤（a）和（b）后获得的经处理的悬浮液脱水。

6. 发明申请

WO2014125130A2 CONCENTRATION OF SUSPENSIONS 审中-公开
标题翻译：悬浮液浓度
公开(公告)号：WO2014125130A2
公开(公告)日：2014-08-21
申请号：PCT/EP2014/058140
申请日：2014-04-22
申请人： BASF SE
发明人： BERGER, Alexsandro , ADKINS, Stephen
IPC分类号： B01D21/01
CPC分类号： B01D21/2488 , B01D21/01 , B01D21/283 , C02F1/36 , C02F1/5263 , C02F1/56 , C02F1/68 , C02F1/70 , C02F1/72 , C02F2001/007 , C02F2103/10 , C02F2301/046
摘要： A process of concentrating an aqueous suspension of solid particles, comprising the steps of, introducing the aqueous suspension of solid particles into a vessel, addition of at least one organic polymeric flocculant to the aqueous suspension of solid particles thereby forming flocculated solids, allowing the flocculated solids to settle to form a compression zone, comprising a bed of sedimented solids in suspension at the lower end of the vessel, flowing the sedimented solids from the vessel as an underflow stream, in which an effective amount of ultrasonic energy is applied to: a) the bed of solids at the compression zone; b) the sedimented solids in the underflow stream; or c) a recycle stream containing sedimented solids taken from either the underflow stream or the compression zone which are then recycled back to the vessel.
摘要翻译：一种浓缩固体颗粒的含水悬浮液的方法，包括以下步骤：将固体颗粒的含水悬浮液引入容器中，将至少一种有机聚合物絮凝剂加入到固体颗粒的含水悬浮液中从而形成絮凝的固体，使絮凝的固体沉降以形成压缩区，该压缩区包括在容器下端悬浮的沉降固体床，使沉降的固体作为底流流从容器流出，其中有效量超声波能被施加到：a）压缩区处的固体床; b）底流中的沉降固体; 或c）含有从底流或压缩区取出的沉淀固体的循环物流，然后再循环回到容器中。

7. 发明申请

WO2014111885A1 TREATMENT OF FINE TAILINGS 审中-公开
标题翻译：处理尾矿
公开(公告)号：WO2014111885A1
公开(公告)日：2014-07-24
申请号：PCT/IB2014/058348
申请日：2014-01-17
申请人： BASF SE , BASF (CHINA) COMPANY LIMITED
发明人： ADKINS, Stephen
IPC分类号： B03D3/06 , B01D21/01
CPC分类号： C02F1/52 , C02F1/36 , C02F1/682 , C02F2103/10 , C02F2209/09
摘要： The invention relates to process of preparing a stabilized suspension, suitable for dewatering, which suspension comprises particulate solids dispersed in an aqueous liquid, said particulate solids comprises clay and mineral particles of size below 50 μm, which process comprises the steps of, (a) subjecting the suspension to a kinetic energy stage to produce a modified suspension; (b) adding a modified suspension stabilizing chemical, in which the kinetic energy stage is a shearing stage and/or application of ultrasonic energy to the suspension. The process also relates to a so stabilized suspension and a process of dewatering said stabilized suspension by the steps of, (c) addition of a water-soluble polymer intrinsic viscosity of at least 3 dl/g to the stabilized suspension of step (a); (d) dewatering the polymer treated suspension of step (c). The invention is particularly suited to dewatering of mature fine tailings derived from oil sands tailings. The process of the invention preferably involves rigidification of the suspension.
摘要翻译：本发明涉及制备适于脱水的稳定悬浮液的方法，该悬浮液包含分散在水性液体中的颗粒固体，所述颗粒固体包括尺寸小于50μm的粘土和矿物颗粒，该方法包括以下步骤：（a）使悬浮液经受动能阶段以产生改性悬浮液; （b）添加改性的悬浮稳定化学品，其中动能阶段是剪切阶段和/或向悬浮液施加超声波能量。该方法还涉及如此稳定的悬浮液和通过以下步骤脱水所述稳定的悬浮液的方法：（c）向步骤（a）的稳定化悬浮液中加入至少3dl / g的水溶性聚合物特性粘度， ; （d）使聚合物处理的步骤（c）的悬浮液脱水。本发明特别适用于从油砂尾矿衍生的成熟细尾矿的脱水。本发明的方法优选地涉及悬浮液的刚性化。

8. 发明申请

WO2011125047A1 CONCENTRATION OF SUSPENSIONS 审中-公开
标题翻译：停产浓度
公开(公告)号：WO2011125047A1
公开(公告)日：2011-10-13
申请号：PCT/IB2011/051516
申请日：2011-04-08
申请人： BASF SE , STOCKS, Paul , FLANAGAN, Ian John , BRODT, Gregor , ADKINS, Stephen , BASF (CHINA) COMPANY LIMITED
发明人： STOCKS, Paul , FLANAGAN, Ian John , BRODT, Gregor , ADKINS, Stephen
IPC分类号： B01D21/01
CPC分类号： B01D21/06 , B01D21/01 , B01D21/2427 , B01D2221/04
摘要： A process of forming a second aqueous suspension of solid particles (15) by gravity sedimentation of a first aqueous suspension of solid particles (14) in a vessel (13), comprising the steps of, adding at least one organic polymeric flocculant (12) to the first aqueous suspension of solid particles (14) thereby forming a suspension of flocculated solids (1 1 ), which flocculated solids settle to form a bed of consolidated solids (5), introduction of an effective amount of an agent, into the i) bed of consolidated solids (5) or ii) the flocculated solids that are settling (1 1 ), in order to form the second aqueous suspension (15), in which the second aqueous suspension of solid particles (15) is of higher solids content than the first aqueous suspension of solid particles (14), and in which the agent is selected from the group consisting of free radical agents and oxidising agents, wherein the agent is introduced means selected from the group consisting of A) one or more rakes (10) which convey the agent; B) one or more conduits (16) entering through the top of the vessel through which the agent is introduced C) one or more apertures or conduits (17) in the side walls of the vessel through which the agent is introduced; D) one or more apertures or conduits (18) in the base of the vessel through which the agent is introduced; E) introducing the agent through one or more apertures or conduits (19) in the feed line conveying the bed of consolidated solids from the base of the vessel, preferably between the base of the vessel and a pump; and F) one or more sparges (20) through which the agent is introduced.
摘要翻译：通过使容器（13）中的固体颗粒（14）的第一含水悬浮液重力沉降形成固体颗粒（15）的第二水性悬浮液的方法，包括以下步骤：加入至少一种有机高分子絮凝剂（12）至固体颗粒（14）的第一含水悬浮液，从而形成絮凝固体（11）的悬浮液，絮凝的固体沉淀形成固体固体床（5），将有效量的试剂引入到i ）固化固体（5）的床或ii）沉降的絮凝固体（11），以形成第二水性悬浮液（15），其中固体颗粒（15）的第二水性悬浮液具有更高的固体含量高于固体颗粒（14）的第一含水悬浮液，并且其中所述试剂选自自由基试剂和氧化剂，其中引入的试剂选自A）一个或多个耙（10）whi 传达代理人; B）一个或多个通过容器顶部进入的导管（16），所述导管通过所述导管的顶部C）所述试剂通过所述容器的侧壁中的一个或多个孔或管道（17）; D）在容器的底部中引入试剂的一个或多个孔或导管（18）; E）通过供给管线中的一个或多个孔或导管（19）引入试剂，该固定固体床从容器的底部，优选在容器的底部和泵之间输送; 和F）引入所述试剂的一种或多种喷雾（20）。

9. 发明申请

WO2014111887A1 PROCESS FOR DEWATERING MINERAL TAILINGS BY TREATMENT OF TAILINGS WITH POLYMERIC PARTICLES 审中-公开
标题翻译：通过用聚合物颗粒处理尾矿来清除矿物尾矿的方法
公开(公告)号：WO2014111887A1
公开(公告)日：2014-07-24
申请号：PCT/IB2014/058352
申请日：2014-01-17
申请人： BASF SE , BASF (CHINA) COMPANY LIMITED
发明人： ADKINS, Stephen
IPC分类号： B01D21/01 , C02F1/56 , B03D3/06
CPC分类号： C10G1/045 , C02F1/56 , C02F11/008 , C02F11/14 , C02F2103/10
摘要： The present invention relates to a process of dewatering a suspension comprising particulate solids dispersed in an aqueous liquid, said particulate solids comprises clay and mineral particles of size below 50 μιτι, which process comprises the steps of (a) subjecting the suspension to a kinetic energy stage to produce a modified suspension; (b) addition of solid polymeric particles to the suspension, wherein step (a) can be conducted before, during or after step (b); (c) dewatering the modified suspension obtained after having conducted steps (a) and (b), in which the kinetic energy stage is a shearing stage and/or application of ultrasonic energy to the suspension.
摘要翻译：本发明涉及包含分散在水性液体中的颗粒固体的悬浮液的脱水方法，所述颗粒固体包括尺寸低于50微米的粘土和矿物颗粒，该方法包括以下步骤：（a）使悬浮液经受动能阶段生产改性悬浮液; （b）向悬浮液中加入固体聚合物颗粒，其中步骤（a）可以在步骤（b）之前，期间或之后进行; （c）在进行步骤（a）和（b）之后获得的改性悬浮液脱水，其中动能阶段是剪切阶段和/或向悬浮液施加超声波能量。

10. 发明申请

WO2013060700A1 CONCENTRATION OF SUSPENSIONS 审中-公开
标题翻译：停产浓度
公开(公告)号：WO2013060700A1
公开(公告)日：2013-05-02
申请号：PCT/EP2012/071009
申请日：2012-10-24
申请人： BASF SE
发明人： BERGER, Alexsandro , ADKINS, Stephen , HESS, Stephan
IPC分类号： C02F1/56 , C02F1/72
CPC分类号： C02F1/54 , C02F1/56 , C02F1/722 , C02F1/725 , C02F1/76 , C02F1/78 , C02F2305/14
摘要： A process of concentrating a suspension of solid particles in an aqueous medium comprising introducing into the suspension at least one organic polymeric flocculant and addition of an agent system, in which the solid particles in the suspension are flocculated by the action of the at least one organic polymeric flocculant and the so formed flocculated solid particles settle to form a settled layer of solids suspended in the aqueous medium, wherein the agent system comprises: i) at least one oxidising agent; ii) at least one control agent,
摘要翻译：将固体颗粒的悬浮液浓缩在水性介质中的方法，包括向所述悬浮液中引入至少一种有机聚合物絮凝剂并加入试剂体系，其中悬浮液中的固体颗粒通过至少一种有机物的作用而絮凝聚合物絮凝剂和如此形成的絮凝固体颗粒沉降以形成悬浮在水性介质中的固体沉降层，其中所述试剂体系包括：i）至少一种氧化剂; ii）至少一种控制剂，

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