公开(公告)号：US09611176B2

公开(公告)日：2017-04-04

申请号：US15033956

申请日：2014-11-04

Applicant: YARA INTERNATIONAL ASA

Inventor： Wolfram Franke ,  Anne Mette Langholm ,  Hilde Brekke Dahl Thommesen ,  Bjørn Helge Engesveen

IPC: C04B22/08 ,  C04B28/02 ,  C04B40/00 ,  C01F11/36 ,  C04B28/04 ,  C04B103/12

CPC classification number: C04B22/085 ,  C01F11/36 ,  C04B28/02 ,  C04B28/04 ,  C04B40/0042 ,  C04B2103/12 ,  C04B20/0076 ,  C04B40/0608 ,  C04B20/026 ,  C04B20/04

Abstract: The invention relates to a setting accelerator for a dry mortar blend, the setting accelerator being in the form of a powder comprising calcium nitrate and having a water content between 0.1% and 20%. The invention furthermore relates to a process for producing such a setting accelerator, wherein either prills and/or granules comprising calcium nitrate and a different nitrate salt are processed forming a powder comprising calcium nitrate and the different nitrate salt and having a water content of higher than 5% and lower than 20%, either an aqueous solution at least comprising dissolved calcium nitrate is spray dried at a temperature between 150° C. and 250° C., forming a powder comprising at least calcium nitrate and having a water content between 0.1% and 20%, the powder serving as the setting accelerator. The invention also relates to a dry mortar blend comprising at least a cement, sand and a setting accelerator according to the invention and to a mortar paste comprising the dry mortar blend according to the invention which is mixed with water.

公开(公告)号：US20160280597A1

公开(公告)日：2016-09-29

申请号：US15033956

申请日：2014-11-04

Applicant: YARA INTERNATIONAL ASA

Inventor： Wolfram Franke ,  Anne Mette Langholm ,  Hilde Brekke Dahi Thommessen ,  Bjørn Helge Engesveen

IPC: C04B22/08 ,  C04B28/04 ,  C01F11/36

CPC classification number: C04B22/085 ,  C01F11/36 ,  C04B28/02 ,  C04B28/04 ,  C04B40/0042 ,  C04B2103/12 ,  C04B20/0076 ,  C04B40/0608 ,  C04B20/026 ,  C04B20/04

Abstract: The invention relates to a setting accelerator for a dry mortar blend, the setting accelerator being in the form of a powder comprising calcium nitrate and having a water content between 0.1% and 20%. The invention furthermore relates to a process for producing such a setting accelerator, wherein either prills and/or granules comprising calcium nitrate and a different nitrate salt are processed forming a powder comprising calcium nitrate and the different nitrate salt and having a water content of higher than 5% and lower than 20%, either an aqueous solution at least comprising dissolved calcium nitrate is spray dried at a temperature between 150° C. and 250° C., forming a powder comprising at least calcium nitrate and having a water content between 0.1% and 20%, the powder serving as the setting accelerator. The invention also relates to a dry mortar blend comprising at least a cement, sand and a setting accelerator according to the invention and to a mortar paste comprising the dry mortar blend according to the invention which is mixed with water.

Abstract translation: 本发明涉及一种用于干砂浆共混物的凝固促进剂，该凝固促进剂为包含硝酸钙并且水含量在0.1％至20％之间的粉末形式。 本发明还涉及一种制备这种凝固促进剂的方法，其中将包含硝酸钙和不同硝酸盐的颗粒和/或颗粒加工成形成包含硝酸钙和不同硝酸盐并且水含量高于 5％且低于20％，至少包含溶解的硝酸钙的水溶液在150℃和250℃之间的温度下喷雾干燥，形成至少包含硝酸钙并且水含量为0.1 ％和20％，粉末作为固化促进剂。 本发明还涉及至少包含根据本发明的水泥，砂和凝固促进剂的干砂浆混合物，以及包含与水混合的根据本发明的干砂浆共混物的砂浆。