公开(公告)号：US20160023162A1

公开(公告)日：2016-01-28

申请号：US14338864

申请日：2014-07-23

Applicant: ALCOA INC.

Inventor： Rajat S. Ghosh ,  John R. Smith

IPC: B01D53/86

CPC classification number: B01D53/8609 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/502 ,  B01D53/73 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2252/602 ,  B01D2255/2022 ,  B01D2255/207 ,  B01D2255/2073 ,  B01D2255/20738

Abstract: Methods for removing sulfur dioxide front a gas stream are disclosed. A method may include passing a gas stream comprising SO2 through a gas scrubbing apparatus. A scrubbing liquor comprising hydroxide ions and at least one oxidation catalyst may be flowed into the gas scrubbing apparatus, thereby contacting the gas stream with the scrubbing liquor. In response to the contacting, at least 90 wt. % of the sulfur dioxide may be removed from the gas stream. Concomitant to the contacting, at least some of the sulfur dioxide may react with at least some of the hydroxide ions, thereby forming sulfite ions in the scrubbing liquor. Some of the sulfite ions may be oxidized, via the oxidation catalyst, thereby forming sulfate ions in the scrubbing liquor. A used scrubbing liquor may be discharged from the scrubbing apparatus.

Abstract translation: 公开了在气流前面去除二氧化硫的方法。 一种方法可以包括使包含SO 2的气流通过气体洗涤装置。 包含氢氧根离子和至少一种氧化催化剂的洗涤液可以流入气体洗涤装置，从而使气体流与洗涤液接触。 响应于接触，至少90wt。 可以从气流中除去二氧化硫的百分数。 伴随接触，至少一些二氧化硫可与至少一些氢氧根离子反应，从而在洗涤液中形成亚硫酸根离子。 一些亚硫酸根离子可以通过氧化催化剂被氧化，从而在洗涤液中形成硫酸根离子。 使用的洗涤液可以从洗涤装置排出。

公开(公告)号：US08673152B2

公开(公告)日：2014-03-18

申请号：US13886677

申请日：2013-05-03

Applicant: Alcoa Inc. ,  Corporate Environmental Solutions LLC

Inventor： John R. Smith ,  Jaw K. Fu ,  Rajat Ghosh ,  Kevin Kitzman ,  Jonell Kerkhoff ,  Robert C. Horger ,  Dennis L. Fulmer ,  Aniruddha Bhattacharyya ,  Andrew C. Middleton ,  Robin L. Weightman

IPC: C02F1/28

CPC classification number: C02F1/281 ,  C02F1/001 ,  C02F1/004 ,  C02F1/28 ,  C02F1/283 ,  C02F1/286 ,  C02F1/288 ,  C02F1/705 ,  C02F2101/103 ,  C02F2101/14 ,  C02F2101/18 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2101/327

Abstract: Wastewater treatment systems, methods and apparatus for polishing a wastewater stream comprising a plurality of contaminants are provided. One system includes a vessel containing a plurality of natural media filtration agents selected to remove selected ones of the plurality of contaminants from the wastewater stream. In one embodiment, the vessel includes a bed of bauxite residue and at least one other natural media filtration agent. In another embodiment, the vessel includes a bed of compost and at least one other natural media filtration agent. The vessel includes a wastewater inlet that is in fluid communication with one or more of the natural media filtration agents. The vessel includes a wastewater outlet that is in fluid communication with one or more of the natural media filtration agents.

Abstract translation: 提供了用于抛光包含多种污染物的废水流的废水处理系统，方法和设备。 一个系统包括容纳多个天然介质过滤剂的容器，所述多个天然介质过滤剂被选择以从废水流中除去选定的多个污染物。 在一个实施方案中，容器包括铝土矿残渣床和至少一种其它天然介质过滤剂。 在另一个实施方案中，容器包括堆肥床和至少一种其它天然介质过滤剂。 该容器包括与一种或多种天然介质过滤剂流体连通的废水入口。 该容器包括与一种或多种天然介质过滤剂流体连通的废水出口。

公开(公告)号：US09795920B2

公开(公告)日：2017-10-24

申请号：US15089852

申请日：2016-04-04

Applicant: ALCOA INC.

Inventor： Rajat S. Ghosh ,  John R. Smith

IPC: B01D53/50 ,  B01D53/77 ,  B01D53/78 ,  B01D53/86 ,  B01D53/14 ,  B01D53/73

CPC classification number: B01D53/8609 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/502 ,  B01D53/73 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2252/602 ,  B01D2255/2022 ,  B01D2255/207 ,  B01D2255/2073 ,  B01D2255/20738

Abstract: Methods for removing sulfur dioxide from a gas stream are disclosed. A method may include passing a gas stream comprising SO2 through a gas scrubbing apparatus. A scrubbing liquor comprising hydroxide ions and at least one oxidation catalyst may be flowed into the gas scrubbing apparatus, thereby contacting the gas stream with the scrubbing liquor. In response to the contacting, at least 90 wt. % of the sulfur dioxide may be removed from the gas stream. Concomitant to the contacting, at least some of the sulfur dioxide may react with at least some of the hydroxide ions, thereby forming sulfite ions in the scrubbing liquor. Some of the sulfite ions may be oxidized, via the oxidation catalyst, thereby forming sulfate ions in the scrubbing liquor. A used scrubbing liquor may be discharged from the scrubbing apparatus.

公开(公告)号：US09527779B2

公开(公告)日：2016-12-27

申请号：US14539745

申请日：2014-11-12

Applicant: ALCOA INC.

Inventor： Mark L. Weaver ,  Kyle A. Crum ,  Judodine Nichols ,  David F. Iwig ,  Steven C. Orkis ,  Gerald E. Carkin ,  Orhan D. Gencaga ,  Stephen P. Sunday ,  Ian Ross Harrison ,  John R. Smith ,  Shannon I. Parks ,  Mikhail Gershenzon

IPC: C05C1/00 ,  C05G3/00

CPC classification number: C05C1/02 ,  C05B17/00 ,  C05C1/00 ,  C05G3/00 ,  C05G3/0041 ,  C05G3/0047

Abstract: Generally, the instant disclosure relates to fertilizer compositions and methods of making and using the same. More specifically, the instant disclosure relates to blast suppressant and/or blast resistant ammonium nitrate fertilizer compositions, as well as methods of making and using the same.

Abstract translation: 通常，本公开涉及肥料组合物及其制备和使用方法。 更具体地说，本公开涉及喷砂抑制剂和/或防爆硝酸铵肥料组合物，以及其制备和使用方法。

公开(公告)号：US20150239790A1

公开(公告)日：2015-08-27

申请号：US14627803

申请日：2015-02-20

Applicant: ALCOA INC.

Inventor： David F. Iwig ,  Raymond J. Kilmer ,  Charles L. Dobbs ,  Judodine Nichols ,  John R. Smith ,  Mark L. Weaver ,  Shannon L. I. Parks ,  Mikhail Gershenzon

IPC: C05G3/00 ,  C05C9/00

CPC classification number: C05G3/0035 ,  C05C1/00 ,  C05C9/005 ,  C05D9/00 ,  C05G3/0041 ,  C05C9/00

Abstract: Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).

Abstract translation: 提供肥料组合物，其中肥料组合物包括：包含含氮材料的内部部分; 以及覆盖内部的外部，外部包括脱模剂（例如HTC，BR）。

公开(公告)号：US20170073260A1

公开(公告)日：2017-03-16

申请号：US15130501

申请日：2016-04-15

Applicant: ALCOA INC.

Inventor： Sarah K. Strano ,  Shannon L. Isovitsch Parks ,  Jaw K. Fu ,  John R. Smith

IPC: C02F9/00

CPC classification number: C02F9/00 ,  C02F1/281 ,  C02F1/42 ,  C02F3/2813 ,  C02F3/284 ,  C02F3/327 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/308 ,  C02F2101/32 ,  C02F2103/003 ,  Y02W10/12 ,  Y02W10/18 ,  Y02W10/33 ,  Y02W10/37

Abstract: The instant disclosure is directed towards methods of treating wastewater and related systems, where the system includes: a first zone comprising at least one anaerobic tank, and a second zone comprising at least one engineered wetland. In some embodiments, the system includes a third zone comprising at least one bauxite residue cell.

Abstract translation: 本公开涉及处理废水和相关系统的方法，其中该系统包括：包含至少一个厌氧池的第一区域和包括至少一个工程化湿地的第二区域。 在一些实施例中，该系统包括包含至少一个铝土矿残余电池的第三区域。

公开(公告)号：US09327237B2

公开(公告)日：2016-05-03

申请号：US14338864

申请日：2014-07-23

Applicant: ALCOA INC.

Inventor： Rajat S. Ghosh ,  John R. Smith

IPC: B01D53/50 ,  B01D53/86

CPC classification number: B01D53/8609 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/502 ,  B01D53/73 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2252/602 ,  B01D2255/2022 ,  B01D2255/207 ,  B01D2255/2073 ,  B01D2255/20738

Abstract: Methods for removing sulfur dioxide front a gas stream are disclosed. A method may include passing a gas stream comprising SO2 through a gas scrubbing apparatus. A scrubbing liquor comprising hydroxide ions and at least one oxidation catalyst may be flowed into the gas scrubbing apparatus, thereby contacting the gas stream with the scrubbing liquor. In response to the contacting, at least 90 wt. % of the sulfur dioxide may be removed from the gas stream. Concomitant to the contacting, at least some of the sulfur dioxide may react with at least some of the hydroxide ions, thereby forming sulfite ions in the scrubbing liquor. Some of the sulfite ions may be oxidized, via the oxidation catalyst, thereby forming sulfate ions in the scrubbing liquor. A used scrubbing liquor may be discharged from the scrubbing apparatus.

Abstract translation: 公开了在气流前面去除二氧化硫的方法。 一种方法可以包括使包含SO 2的气流通过气体洗涤装置。 包含氢氧根离子和至少一种氧化催化剂的洗涤液可以流入气体洗涤装置，从而使气体流与洗涤液接触。 响应于接触，至少90wt。 可以从气流中除去二氧化硫的百分数。 伴随接触，至少一些二氧化硫可与至少一些氢氧根离子反应，从而在洗涤液中形成亚硫酸根离子。 一些亚硫酸根离子可以通过氧化催化剂被氧化，从而在洗涤液中形成硫酸根离子。 使用的洗涤液可以从洗涤装置排出。

公开(公告)号：US20160009580A1

公开(公告)日：2016-01-14

申请号：US14795419

申请日：2015-07-09

Applicant: ALCOA INC.

Inventor： Janean Elbicki ,  Shannon Parks ,  Dennis L. Fulmer ,  John R. Smith

IPC: C02F3/30 ,  C02F3/28 ,  C02F1/28 ,  C02F3/10

CPC classification number: C02F3/30 ,  C02F1/281 ,  C02F1/286 ,  C02F3/10 ,  C02F3/2806 ,  C02F3/2813 ,  C02F2003/008 ,  C02F2101/105 ,  C02F2101/16 ,  C02F2101/163 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2101/325 ,  C02F2101/363 ,  C02F2103/001 ,  C02F2103/005 ,  C02F2103/34 ,  C02F2209/003 ,  C02F2209/08 ,  C02F2209/40 ,  Y02W10/15

Abstract: The instant disclosure is directed towards methods of treating wastewater and related systems, where the system includes: an aerated zone comprising media (e.g. with sufficient surface area and porosity to sustain microbial growth and retain bacteria) and a non-aerated zone comprising compost, wherein the system is configured to remove emulsified oil (e.g. and grease) from a wastewater stream.

Abstract translation: 本公开涉及处理废水和相关系统的方法，其中系统包括：包含介质的充气区（例如具有足够的表面积和孔隙度以维持微生物生长和保留细菌）和包含堆肥的非充气区，其中 该系统构造成从废水流中除去乳化油（例如和油脂）。

公开(公告)号：US09718738B2

公开(公告)日：2017-08-01

申请号：US14627803

申请日：2015-02-20

Applicant: ALCOA INC.

Inventor： David F. Iwig ,  Raymond J. Kilmer ,  Charles L. Dobbs ,  Judodine Nichols ,  John R. Smith ,  Mark L. Weaver ,  Shannon L. I. Parks ,  Mikhail Gershenzon

IPC: C05C9/00 ,  C05G3/00 ,  C05C1/00 ,  C05D9/00

CPC classification number: C05G3/0035 ,  C05C1/00 ,  C05C9/005 ,  C05D9/00 ,  C05G3/0041 ,  C05C9/00

Abstract: Fertilizer compositions are provided, where a fertilizer composition includes: an inner portion including a nitrogen containing material; and an outer portion covering the inner portion, the outer portion including a release agent (e.g. HTC, BR).

公开(公告)号：US20160214059A1

公开(公告)日：2016-07-28

申请号：US15089852

申请日：2016-04-04

Applicant: ALCOA INC.

Inventor： Rajat S. Ghosh ,  John R. Smith

IPC: B01D53/86 ,  B01D53/14

CPC classification number: B01D53/8609 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/502 ,  B01D53/73 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2252/602 ,  B01D2255/2022 ,  B01D2255/207 ,  B01D2255/2073 ,  B01D2255/20738

Abstract: Methods for removing sulfur dioxide from a gas stream are disclosed. A method may include passing a gas stream comprising SO2 through a gas scrubbing apparatus. A scrubbing liquor comprising hydroxide ions and at least one oxidation catalyst may be flowed into the gas scrubbing apparatus, thereby contacting the gas stream with the scrubbing liquor. In response to the contacting, at least 90 wt. % of the sulfur dioxide may be removed from the gas stream. Concomitant to the contacting, at least some of the sulfur dioxide may react with at least some of the hydroxide ions, thereby forming sulfite ions in the scrubbing liquor. Some of the sulfite ions may be oxidized, via the oxidation catalyst, thereby forming sulfate ions in the scrubbing liquor. A used scrubbing liquor may be discharged from the scrubbing apparatus.

Abstract translation: 公开了从气流中除去二氧化硫的方法。 一种方法可以包括使包含SO 2的气流通过气体洗涤装置。 包含氢氧根离子和至少一种氧化催化剂的洗涤液可以流入气体洗涤装置，从而使气体流与洗涤液接触。 响应于接触，至少90wt。 可以从气流中除去二氧化硫的百分数。 伴随接触，至少一些二氧化硫可与至少一些氢氧根离子反应，从而在洗涤液中形成亚硫酸根离子。 一些亚硫酸根离子可以通过氧化催化剂被氧化，从而在洗涤液中形成硫酸根离子。 使用的洗涤液可以从洗涤装置排出。