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1. 发明授权

US5145515A Treatment of brine 失效
标题翻译：处理盐水
公开(公告)号：US5145515A
公开(公告)日：1992-09-08
申请号：US458886
申请日：1989-12-29
申请人： Darrell L. Gallup , John L. Featherstone , Jessie P. Reverente , Philip H. Messer , Allen W. Doty
发明人： Darrell L. Gallup , John L. Featherstone , Jessie P. Reverente , Philip H. Messer , Allen W. Doty
IPC分类号： F03G4/00 , C01D3/16 , C02F5/00 , C02F5/08 , C02F5/10 , F24J3/08
CPC分类号： F24J3/085 , C01D3/16 , Y02E10/14 , Y10S423/19
摘要： A method is disclosed for polishing geothermal brines containing iron-rich silica scale and silica particles suspended therein while removing and recovering copper, silver and other precious metals dissolved therein. The method comprises passing brine having a pH just below about 5.0 through a conduit packed with a metal higher in the electromotive series than silver for a time sufficient for a substantial portion of the copper and silver therein to precipitate onto the packing. Preferably, the packing comprises coiled zinc-galvanized steel chicken wire mesh packed in a sufficient density to act as a filter for said suspended particles. Dissolving the packing in a suitable acid will leave a precious metal-rich residue behind for subsequent recovery. When the brine is treated in accordance with this method, the useful life of injection wells used to return cooled brine back to the geothermal field is extended by at least about 3 time as compared to that observed with untreated brine. Further the treated brine is less corrosive than it was before treatment.
摘要翻译：公开了一种用于抛光含有富铁二氧化硅垢和悬浮在其中的二氧化硅颗粒的地热盐水的方法，同时除去和回收溶解在其中的铜，银和其它贵金属。该方法包括将具有低于约5.0的pH的盐水通过填充有比电银系列更高的金属的导管充满足以使其中大部分铜和银沉淀到填料上的时间的导管。优选地，填料包括以足够的密度填充的卷绕的镀锌钢丝鸡丝网，以充当所述悬浮颗粒的过滤器。将包装溶解在合适的酸中将留下贵重的富含金属的残留物，以便随后的回收。当根据该方法处理盐水时，将冷却的盐水返回到地热场的注入井的使用寿命比未处理的盐水所观察到的延长至少约3倍。此外，处理过的盐水比处理前的腐蚀性低。

2. 发明授权

US5145656A Brine treatment 失效
标题翻译：盐水处理
公开(公告)号：US5145656A
公开(公告)日：1992-09-08
申请号：US559042
申请日：1990-07-26
申请人： Darrell L. Gallup , Allen W. Doty , Morton M. Wong , Charles F. Wong , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
发明人： Darrell L. Gallup , Allen W. Doty , Morton M. Wong , Charles F. Wong , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
IPC分类号： C01D3/16 , F24J3/08
CPC分类号： F24J3/085 , C01D3/16 , Y02E10/14 , Y10S423/19
摘要： Geothermal brine is passed through a zone containing a packing metal so as to reduce its tendency to deposit iron/silica scale, reduce corrosivity of the brine, and/or remove and recover metals from the brine. The method polished the geothermal brine by contacting the brine with a packing metal higher in the electromotive series than silver for a time sufficient for a precious metals to precipitate onto the packing at brine temperature and pH conditions which inhibit iron-rich silica scale. Most preferably, the contacting is accomplished near an injection well at the end of a heat extraction process and the packing comprises coiled zinc-galvanized steel chicken wire mesh packed in a sufficient density to also act as a filter for suspended particles. Alternatively, contacting is also accomplished near the production well. Dissolving the packing in a suitable acid leaves a precious metal-rich residue behind for subsequent recovery. When the brine is treated in accordance with this method, the useful life of injection wells used to return cooled brine back to the geothermal field is extended by at least about 3 time as compared to that observed with untreated brine. Further the contacted brine is less corrosive than it was before contacting.
摘要翻译：地热盐水通过含有包装金属的区域，以便降低其沉积铁/二氧化硅垢的倾向，降低盐水的腐蚀性，和/或从盐水中除去和回收金属。该方法通过使盐水与电动系列比银高的填充金属接触足够使贵金属在盐水温度和抑制富铁二氧化硅垢的pH条件下沉淀到填料上的时间来抛光地热盐水。最优选地，在热提取过程结束时在注入井附近进行接触，并且填料包括以足够的密度填充的卷曲的镀锌钢丝鸡丝网，还用作悬浮颗粒的过滤器。或者，也可以在生产井附近进行接触。将包装溶解在合适的酸中，留下贵重的富含金属的残留物，以便后续回收。当根据该方法处理盐水时，将冷却的盐水返回到地热场的注入井的使用寿命比未处理的盐水所观察到的延长至少约3倍。此外，接触的盐水比接触前的腐蚀性较小。

3. 发明授权

US5240687A Brine treatment 失效
标题翻译：盐水处理
公开(公告)号：US5240687A
公开(公告)日：1993-08-31
申请号：US843169
申请日：1992-02-28
申请人： Darrell L. Gallup , Allen W. Doty , Morton M. Wong , Charles F. Wong , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
发明人： Darrell L. Gallup , Allen W. Doty , Morton M. Wong , Charles F. Wong , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
IPC分类号： C01D3/16 , F24J3/08
CPC分类号： C01D3/16 , F24J3/085 , Y02E10/14
摘要： Geothermal brine is passed through a zone containing a packing metal so as to reduce its tendency to deposit iron/silica scale, reduce corrosivity of the brine, and/or remove and recover metals from the brine. The method polishes the geothermal brine by contacting the brine with a packing metal higher in the electromotive series than silver for a time sufficient for a precious metals to precipitate onto the packing at brine temperature and pH conditions which inhibit iron-rich silica scale. Most preferably, the contacting is accomplished near an injection well at the end of a heat extraction process and the packing comprises coiled zinc-galvanized steel chicken wire mesh packed in a sufficient density to also act as a filter for suspended particles. Alternatively, contacting is also accomplished near the production well. Dissolving the packing in a suitable acid leaves a precious metal-rich residue behind for subsequent recovery. When the brine is treated in accordance with this method, the useful life of injection wells used to return cooled brine back to the geothermal field is extended by at least about 3 time as compared to that observed with untreated brine. Further the contacted brine is less corrosive than it was before contacting.
摘要翻译：地热盐水通过含有包装金属的区域，以便降低其沉积铁/二氧化硅垢的倾向，降低盐水的腐蚀性，和/或从盐水中除去和回收金属。该方法通过使盐水与电荷系列比银高的填充金属接触一段时间，使贵金属在盐水温度和pH条件下沉淀到填料上，从而抑制富铁二氧化硅垢。最优选地，在热提取过程结束时，在注入井附近进行接触，并且填料包括以足够密度填充的卷绕的镀锌钢丝鸡丝网，还用作悬浮颗粒的过滤器。或者，也可以在生产井附近进行接触。将包装溶解在合适的酸中，留下贵重的富含金属的残留物，以便后续回收。当根据该方法处理盐水时，将冷却的盐水返回到地热场的注入井的使用寿命比未处理的盐水所观察到的延长至少约3倍。此外，接触的盐水比接触前的腐蚀性较小。

4. 发明授权

US5082492A Recovery of precious metals from aqueous media 失效
标题翻译：从含水介质中回收贵金属
公开(公告)号：US5082492A
公开(公告)日：1992-01-21
申请号：US345167
申请日：1989-05-01
申请人： Darrell L. Gallup , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
发明人： Darrell L. Gallup , John L. Featherstone , Jessie P. Reverente , Philip H. Messer
IPC分类号： F03G4/00 , C01D3/16 , C02F5/00 , C02F5/08 , C02F5/10 , F24J3/08
CPC分类号： F24J3/085 , C01D3/16 , Y02E10/14 , Y10S423/19
摘要： A method is disclosed for polishing geothermal brines containing iron-rich silica scale and silica particles suspended therein while removing and recovering copper, silver and other precious metals dissolved therein. The method comprises passing brine having a pH just below about 5.0 through a conduit packed with a metal higher in the electromotive series than silver for a time to sufficient for substantially all of the silver and other precious metals therein to precipitate onto the packing. Preferably, the packing comprises coiled zinc-galvanized steel chicken wire mesh packed in a sufficient density to act as a filter for said suspended particles. Dissolving the packing in a suitable acid will leave a precious metal-rich residue behind for subsequent recovery. When the brine is treated this process, the useful life of injection wells used to return cooled brine back to the geothrmal field is extended by at least about 3 times as compared to that observed with untreated brine.
摘要翻译：公开了一种用于抛光含有富铁二氧化硅垢和悬浮在其中的二氧化硅颗粒的地热盐水的方法，同时除去和回收溶解在其中的铜，银和其它贵金属。该方法包括将具有低于约5.0的pH的盐水通过填充有高于银的电动系列中的金属的管道一段时间足以使其中的所有银和其它贵金属基本上沉淀到填料上。优选地，填料包括以足够的密度填充的卷绕的镀锌钢丝鸡丝网，以充当所述悬浮颗粒的过滤器。将包装溶解在合适的酸中将留下贵重的富含金属的残留物，以便随后的回收。当这种方法处理盐水时，用于将冷却的盐水返回到地质储层的注入井的使用寿命与未处理的盐水相比，延长至少约3倍。

5. 发明授权

US4776961A Process for treating geothermal brine in two phase brine separators 失效
标题翻译：在两相盐水分离器中处理地热盐水的方法
公开(公告)号：US4776961A
公开(公告)日：1988-10-11
申请号：US75267
申请日：1987-07-17
申请人： Gregory A. Gritters , John L. Featherstone , Jessie P. Reverente
发明人： Gregory A. Gritters , John L. Featherstone , Jessie P. Reverente
IPC分类号： B01D3/06 , B01D9/00 , C02F1/60 , B01D17/00 , B01D21/00
CPC分类号： C02F1/60 , B01D3/06 , B01D9/0022
摘要： A process for treating hot, pressurized geothermal brine in a liquid-vapor phase separator comprises contacting the brine in the separator with between about 0.2 and about 1.5 parts per million of a defoaming agent so as to substantially reduce the amount of foaming in the separator caused, in part, by steam bubbling through the brine. The preferred defoaming agents are polyglycols having molecular weights between about 1000 and about 2500, those agents having molecular weights below about 1000 being too volatile and those above about 2500 being too difficult to solubilize in the brine. If the separator comprises a draft tube-type flash crystallizer in which silica-rich geothermal brine is contacted with a seed material onto which silica from the brine deposits, the process additionally includes establishing and maintaining a brine level in the crystallizer causing circulation of the brine at a rate substantially reducing the rate of silicious scaling of inner walls of the crystallizer which would result in the absence of brine circulation, the established and maintained brine level being such that in the absence of the defoaming agent, excessive amounts of brine in the form of foam would be carried over into steam discharged from the crystallizer. In preexisting separators in which a design steam production rate cannot be attained because of brine foaming, the addition of a defoaming agent by the present process may enable steam production at a rate greater than the design rate.
摘要翻译：用于在液 - 气相分离器中处理热的，加压的地热盐水的方法包括使分离器中的盐水与每百万份消泡剂接触约0.2至约1.5份，以便基本上减少分离器中的起泡量部分地通过蒸汽通过盐水鼓泡。优选的消泡剂是分子量在约1000至约2500之间的聚二醇，分子量低于约1000的那些试剂太挥发，而高于约2500的那些试剂太难溶解在盐水中。如果分离器包括引流管式闪蒸结晶器，其中富含二氧化硅的地热盐水与来自盐水沉积的二氧化硅的种子材料接触，则该方法还包括建立并保持结晶器中的盐水水平，引起盐水循环以大大降低结晶器内壁的硅质垢的速率，这将导致不存在盐水循环，建立和保持的盐水水平使得在没有消泡剂的情况下，过量的盐水形式的泡沫将被转移到从结晶器排出的蒸汽中。在由于盐水发泡而不能实现设计蒸汽生产率的预先存在的分离器中，通过本方法添加消泡剂可以使蒸汽以大于设计速率的速率生产。

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