公开(公告)号：FI20136167A

公开(公告)日：2015-05-23

申请号：FI20136167

申请日：2013-11-22

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： KOUKKARI PERTTI ,  MÄKINEN JARNO ,  BOMBERG MALIN ,  LEHTONEN ANNA ,  ARNOLD MONA

IPC: C22B59/00 ,  B03C1/00 ,  B03C1/015 ,  B03C1/02 ,  C01F17/288 ,  C02F1/48 ,  C02F101/10 ,  C22B3/18 ,  C22B7/00

公开(公告)号：FI125535B

公开(公告)日：2015-11-13

申请号：FI20135884

申请日：2013-09-02

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： RÄSÄNEN JAAKKO ,  KAJOLINNA TUULA ,  ARNOLD MONA

IPC: G01N21/61 ,  C07F7/02 ,  G01J3/42 ,  G01N21/3504

公开(公告)号：FI125550B

公开(公告)日：2015-11-30

申请号：FI20136167

申请日：2013-11-22

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： KOUKKARI PERTTI ,  MÄKINEN JARNO ,  BOMBERG MALIN ,  LEHTONEN ANNA ,  ARNOLD MONA

IPC: C22B59/00 ,  B03C1/00 ,  B03C1/015 ,  B03C1/02 ,  C01F17/288 ,  C02F1/48 ,  C02F101/10 ,  C22B3/18 ,  C22B7/00

公开(公告)号：FI20135884A

公开(公告)日：2015-03-03

申请号：FI20135884

申请日：2013-09-02

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： RÄSÄNEN JAAKKO ,  KAJOLINNA TUULA ,  ARNOLD MONA

IPC: G01N21/61 ,  C07F7/02 ,  G01J3/42 ,  G01N21/3504

公开(公告)号：CA2930349A1

公开(公告)日：2015-05-28

申请号：CA2930349

申请日：2014-11-21

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： KOUKKARI PERTTI ,  MAKINEN JARNO ,  BOMBERG MALIN ,  LEHTONEN ANNA ,  ARNOLD MONA

IPC: C22B59/00 ,  B03C1/00 ,  B03C1/015 ,  B03C1/02 ,  C01F17/288 ,  C02F1/48 ,  C22B3/18 ,  C22B7/00

Abstract: The present invention relates to a method for recovering rare earth metals from waste sulphate materials, such as waste gypsum, which is a known secondary resource of rare earth metals and widely present e.g. in areas, where industrial phosphate production takes place. The present invention combines sulphate reduction treatment, such as bioreduction with sulphate reducing bacteria, and magnetic separation, which is based on an exceptionally high magnetic susceptibility of rare earth compounds compared to e.g. calcium compounds in such reductively pretreated gypsum precipitate.

公开(公告)号：EP3071719A4

公开(公告)日：2017-08-09

申请号：EP14863833

申请日：2014-11-21

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： KOUKKARI PERTTI ,  MÄKINEN JARNO ,  BOMBERG MALIN ,  LEHTONEN ANNA ,  ARNOLD MONA

IPC: C22B59/00 ,  B03C1/00 ,  B03C1/015 ,  B03C1/02 ,  C01F17/00 ,  C02F1/48 ,  C02F101/10 ,  C22B3/18 ,  C22B7/00

CPC classification number: C22B59/00 ,  B03C1/015 ,  B03C1/02 ,  C01F17/0087 ,  C22B3/18 ,  C22B7/00 ,  Y02P10/234 ,  Y02P10/238

Abstract: The present invention relates to a method for recovering rare earth metals from waste sulphate materials, such as waste gypsum, which is a known secondary resource of rare earth metals and widely present e.g. in areas, where industrial phosphate production takes place. The present invention combines sulphate reduction treatment, such as bioreduction with sulphate reducing bacteria, and magnetic separation, which is based on an exceptionally high magnetic susceptibility of rare earth compounds compared to e.g. calcium compounds in such reductively pretreated gypsum precipitate.

Abstract translation: 本发明涉及从废硫酸盐材料例如废石膏中回收稀土金属的方法，废石膏是稀土金属的已知次级资源并且广泛存在于例如废石膏中。 在发生工业磷酸盐生产的地区。 本发明结合了硫酸盐还原处理，例如生物还原与硫酸盐还原细菌，以及基于稀土化合物的极高磁化率的磁分离。 钙化合物在这种还原预处理的石膏中沉淀。

公开(公告)号：EP3042181A4

公开(公告)日：2017-04-19

申请号：EP14840748

申请日：2014-09-02

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： RÄSÄNEN JAAKKO ,  KAJOLINNA TUULA ,  ARNOLD MONA

IPC: G01N21/3504 ,  G01J3/42

CPC classification number: G01N21/3504 ,  B01D53/30 ,  G01J3/0227 ,  G01J3/42 ,  G01J2003/104 ,  G01N33/0047

Abstract: A method for determining siloxane content of a gas by non-dispersive infrared analysis including the steps of providing infrared light at a limited wave number band selected according to the absorption bands of the siloxanes, transmitting the infrared light at the limited wave number band to a volume of a gas to be analyzed, and detecting the intensity of the infrared light at the limited wave number band passed through the volume of a gas to be analyzed. The siloxane content is determined based on the absorption of the infrared light at the limited wave number band. Preferably, the limited wave number band lies in the range of 800 to 860 cm−1.

Abstract translation: 一种通过非分散红外分析测定气体的硅氧烷含量的方法，包括以下步骤：提供根据硅氧烷吸收带选择的有限波数带的红外光，将有限波数频带的红外光传输到 要分析的气体的体积，并且检测通过待分析气体的体积的受限波数带处的红外光的强度。 基于在有限波数频带处的红外光的吸收来确定硅氧烷含量。 优选地，有限波数带在800至860cm -1的范围内。