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公开(公告)号：US20160375423A1
公开(公告)日：2016-12-29
申请号：US15086399
申请日：2016-03-31
Applicant: Dundee Sustainable Technologies Inc.
Inventor： Khalil Nasrallah , Bertrand Dubreuil , Jean-Marc Lalancette , David Lemieux
CPC classification number: B01J20/103 , B09B3/0008 , B09B3/0083 , C03C1/002 , C03C3/062 , C03C3/07
Abstract: There is provided a method and composition for sequestration of arsenic, the method comprising melting an arsenic-containing material in the presence of iron oxide and glass, and yielding a resulting glass incorporating arsenic. The resulting glass has an arsenic content comprised in a range between 1 and 25% w/w and an iron content comprised in a range between 8 and 20% w/w.
Abstract translation: 本发明提供了一种用于螯合砷的方法和组合物，所述方法和组合物包括在氧化铁和玻璃的存在下熔化含砷材料，并产生掺入砷的所得玻璃。 得到的玻璃的砷含量为1〜25％w / w，铁含量为8〜20％w / w。
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Patent Agency Ranking
公开(公告)号：US09981295B2
公开(公告)日：2018-05-29
申请号：US15216048
申请日：2016-07-21
Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
Inventor： Jean-Marc Lalancette , David Lemieux , Khalil Nasrallah , Gabriel Garcia Curiel , Romain Barbaroux
CPC classification number: B09B3/005 , B09B3/0025 , B09B3/0041 , C03C1/002 , C03C3/062 , C03C3/078 , C03C3/087 , C22B1/11 , C22B30/02 , C22B30/04
Abstract: A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.
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公开(公告)号：US11168014B2
公开(公告)日：2021-11-09
申请号：US15966462
申请日：2018-04-30
Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
Inventor： Khalil Nasrallah , Romain Barbaroux , Jean-Marc Lalancette , David Lemieux
Abstract: A method of fabrication of arsenic glass, comprising forming pellets of an arsenic-containing glass-forming mixture comprising arsenic in a range between about 30 and about 50% w/w and glass forming elements, and melting the pellets by direct heating to a temperature in a range between about 950 and about 1250° C.
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公开(公告)号：US20180023165A1
公开(公告)日：2018-01-25
申请号：US15216048
申请日：2016-07-21
Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
Inventor： Jean-Marc Lalancette , David Lemieux , Khalil Nasrallah , Gabriel Garcia Curiel , Romain Barbaroux
CPC classification number: B09B3/005 , B09B3/0025 , B09B3/0041 , C03C1/002 , C03C3/062 , C03C3/078 , C03C3/087 , C22B1/11 , C22B30/02 , C22B30/04
Abstract: A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.
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公开(公告)号：US11408051B2
公开(公告)日：2022-08-09
申请号：US15876563
申请日：2018-01-22
Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
Inventor： Jean-Marc Lalancette , David Lemieux , Romain Barbaroux , Gabriel Garcia-Curiel , Khalil Nasrallah
Abstract: There is provided a method for the removal of arsenic from an arsenical bearing sulfides ore, comprising a thermal treatment of arsenical sulfide in the presence of sulfur dioxide, yielding a calcine and a sublimate, the sublimate containing arsenious oxide. The method allows recovering metallic value from an arsenic-bearing metallic sulfides ore, by recovery of the calcine comprising the metallic value of the ore.
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公开(公告)号：US09849438B2
公开(公告)日：2017-12-26
申请号：US15086399
申请日：2016-03-31
Applicant: Dundee Sustainable Technologies Inc.
Inventor： Khalil Nasrallah , Bertrand Dubreuil , Jean-Marc Lalancette , David Lemieux
CPC classification number: B01J20/103 , B09B3/0008 , B09B3/0083 , C03C1/002 , C03C3/062 , C03C3/07
Abstract: There is provided a method and composition for sequestration of arsenic, the method comprising melting an arsenic-containing material in the presence of iron oxide and glass, and yielding a resulting glass incorporating arsenic. The resulting glass has an arsenic content comprised in a range between 1 and 25% w/w and an iron content comprised in a range between 8 and 20% w/w.
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