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1. 发明授权

US10494298B1 Cement-SCM compositions and methods and systems for their manufacture 有权
公开(公告)号：US10494298B1
公开(公告)日：2019-12-03
申请号：US15332468
申请日：2016-10-24
申请人： ROMAN CEMENT, LLC
发明人： John M. Guynn
IPC分类号： C04B18/06 , C04B7/13 , C04B7/147 , C04B7/28 , C04B7/26 , C04B7/02 , C04B14/00 , C04B7/00 , C04B7/34 , C04B28/00 , C04B32/00
CPC分类号： C04B7/13 , C04B7/02 , C04B7/147 , C04B7/26 , C04B7/28 , C04B2201/50
摘要： Cement-SCM compositions have improved strength compared to cement-SCM compositions made using conventional blended cements and methods. The cement-SCM compositions may contain: (A) a fine interground particulate component with (1) a hydraulic cement fraction and (2) a supplementary cementitious material (SCM) fraction; (B) a coarse particulate component comprised of coarse SCM particles not interground with the fine interground particulate component; and optionally (C) an auxiliary particulate component not interground with the fine interground particulate component or the coarse particulate component. A method of manufacturing a cement-SCM composition may be performed by: (A) intergrinding hydraulic cement (e.g., cement clinker) with one or more SCMs to form a fine interground particulate component; (B) blending, without intergrinding, the fine interground particulate component with a coarse particulate component comprised of coarse SCM particles; and optionally (C) further combining, without intergrinding, an auxiliary particulate component with the fine interground particulate component and the coarse particulate component.

2. 发明授权

US10233116B1 Activitation of natural pozzolans 有权
公开(公告)号：US10233116B1
公开(公告)日：2019-03-19
申请号：US15862854
申请日：2018-01-05
申请人： ROMAN CEMENT, LLC
发明人： John M. Guynn
IPC分类号： C04B7/13 , C04B7/02 , C04B7/26 , C04B7/28 , C04B7/147
摘要： An activated pozzolan composition includes a fine interground particulate blend of an initially unactivated natural pozzolan and a supplementary cementitious material (SCM) different than the initially unactivated natural pozzolan. The initially unactivated natural pozzolan may include volcanic ash or other natural pozzolanic deposit having a moisture content of at least 3%, and the activated pozzolan composition can have a moisture content less than 0.5% The initially unactivated natural pozzolan may have a particle size less than 1 mm before intergrinding with the SCM. The SCM used to activate the initially unactivated natural pozzolan can be initially coarse or granular with a size greater than 1-3 μm and may include granulated blast furnace slag, steel slag, other metallurgical slag, pumice, limestone, fine aggregate, shale, tuff, trass, geologic material, waste glass, glass shards, basalt, sinters, ceramics, recycled bricks, recycled concrete, refractory materials, other waste industrial products, sand, or natural mineral.

3. 发明授权

US09695485B2 Method for the treatment of steelwork slag and hydraulic mineral binder 有权
公开(公告)号：US09695485B2
公开(公告)日：2017-07-04
申请号：US14419167
申请日：2012-09-06
申请人： Holger Wulfert , Horst-Michael Ludwig
发明人： Holger Wulfert , Horst-Michael Ludwig
IPC分类号： C21C5/36 , C04B5/06 , C04B7/147 , C22B7/04 , C21B3/08
CPC分类号： C21C5/36 , C04B5/06 , C04B7/147 , C21B3/08 , C22B7/04 , Y02P10/216 , Y02P40/143
摘要： The invention relates to a method for processing steel slag to produce a hydraulic mineral binder with a high hardening potential and to recover iron. There is provision for this purpose to provide a feed product comprising steel slag with MnO. This feed product is further processed as a melt by introducing reducing agent into the melt. A lime saturation factor of between 90 and 110 is hereby to be achieved in the mineral melt portion. Subsequently the melt is cooled in a defined manner and elementary iron is mechanically separated from the solidified melt. The solidified melt is then supplied for use as hydraulic mineral binder. Furthermore the invention relates to a hydraulic mineral binder.

4. 发明授权

US5865872A Method of recovering metals and producing a secondary slag from base metal smelter slag 失效
标题翻译：从金属冶炼炉渣中回收金属和生产二次炉渣的方法
公开(公告)号：US5865872A
公开(公告)日：1999-02-02
申请号：US815508
申请日：1997-03-12
申请人： David Krofchak , Werner Dresler
发明人： David Krofchak , Werner Dresler
IPC分类号： C04B5/06 , C04B7/147 , C04B7/19 , C04B18/14 , C04B28/02 , C21B3/04 , C21B3/06 , C22B7/04 , C22B5/04 , C21B15/02
CPC分类号： C04B7/147 , C04B18/144 , C04B5/06 , C04B7/19 , C21B3/04 , C21B3/06 , C22B7/04 , Y02P10/212 , Y02P40/143 , Y02W30/542 , Y02W30/543 , Y02W30/94 , Y10S75/959
摘要： A method of recovering metals and producing a secondary slag from base metal smelter slag produced by a copper or nickel smelter includes mixing the smelter slag with at least one reducing agent selected from the group consisting of carbon, calcium carbide, ferrosilicon and aluminum, said carbon and calcium carbide (if present) being from about 1% to about 40% by weight of the slag and said aluminum (if present) being from about 2% to about 35% by weight of the slag and with from zero to about 70% calcium oxide by weight of the slag, heating the mixture aluminothermically if Al is present as reducing agent above the melting point to reduce the smelter slag to a metal alloy containing iron and possibly silicon and aluminum, depending on the quantity of aluminum added to the smelter slag, and heavy metals such as copper, nickel and cobalt which were in the smelter slag and thereby also producing a secondary slag containing at least one compound selected from the group consisting of calcium silicate, calcium aluminate, fused alumina and calcium iron aluminum silicate, and separating the metal alloy from the secondary slag.
摘要翻译：由铜或镍冶炼炉生产的从金属冶炼炉渣回收金属和生产二次炉渣的方法包括将冶炼炉渣与选自碳，碳化钙，硅铁和铝的至少一种还原剂混合，所述碳并且碳化钙（如果存在）为渣的约1重量％至约40重量％，并且所述铝（如果存在）为炉渣的约2重量％至约35重量％，并且为零至约70重量％氧化钙以炉渣的重量加热，如果铝作为还原剂存在于熔点以上，则将铝混合物加热，以将冶炼炉渣还原成含铁和可能的硅和铝的金属合金，这取决于添加到冶炼厂中的铝量渣和重金属如铜，镍和钴，在熔渣中，从而也产生含有至少一种选自以下的化合物的二次渣：硅酸铝，铝酸钙，熔融氧化铝和铁酸钙铝硅酸盐，并将金属合金与二次渣分离。

5. 发明授权

US2064883A Mercerizing 失效
标题翻译：丝光
公开(公告)号：US2064883A
公开(公告)日：1936-12-22
申请号：US73333734
申请日：1934-06-30
申请人： IG FARBENINDUSTRIE AG
发明人： KARL BRODERSEN
IPC分类号： A23C9/12 , B01D1/18 , C04B5/00 , C04B7/14 , C04B7/147 , D06M11/38 , D06M13/152
CPC分类号： A23C9/1226 , B01D1/18 , C04B5/00 , C04B7/14 , C04B7/147 , D06M11/38 , D06M13/152 , Y02P40/143 , Y10S516/01

6. 发明公开

US20230192551A1 METHOD OF MANUFACTURING INORGANIC BINDER BY REDUCTION FURNACE SLAG AND CURED SOLID MANUFACTURED BY THE METHOD 审中-公开
公开(公告)号：US20230192551A1
公开(公告)日：2023-06-22
申请号：US17994198
申请日：2022-11-25
申请人： National Cheng Kung University , SanFan Internal investment CO., LTD.
发明人： Jong-Shin HUANG , Wen-Pi KO , Ting-Chun LIN
IPC分类号： C04B28/08 , C04B7/147 , C04B7/40 , C04B7/43 , C04B20/10
CPC分类号： C04B28/082 , C04B7/147 , C04B7/40 , C04B7/43 , C04B20/1074
摘要： A method of manufacturing inorganic binder by reduction furnace slag includes a raw material preparation step, a stirring step, a maintaining step and a drying step. The raw material preparation step is to provide a powder mixture containing 30 wt % to 55 wt % of reduction furnace slag, and 45 wt % to 70 wt % of glass powder. The stirring step is to place the powder mixture in a mixing tank, and add an alkali activator to the mixing tank to stir and react to form mixed slurry. The alkali equivalent (AE) of the mixed slurry is 2% to 7%, and the water-binder ratio is 0.25 to 0.4. The maintaining step is to place the mixed slurry in a high-temperature and high pressure maintaining environment for a maintaining time to get a binder. The drying step is to dry the binder.

7. 发明公开

US20230183131A1 PROCESS FOR STABILIZING STEEL SLAG 审中-公开
公开(公告)号：US20230183131A1
公开(公告)日：2023-06-15
申请号：US17831785
申请日：2022-06-03
申请人： Sichuan Fangda New Building Material Development Co., Ltd.
发明人： Yanzhang FANG , Yadi PEI , Chaoquan PAN , Yulin ZOU , Jianyou XIONG , Rongbai JIANG
IPC分类号： C04B7/147 , C04B7/44 , C04B7/47 , C04B7/52
CPC分类号： C04B7/147 , C04B7/44 , C04B7/47 , C04B7/52
摘要： The present disclosure is related to the field of steel slag treatment, and in particular to a process for stabilizing steel slag, the process comprising subjecting the steel slag to an autoclave treatment by use of a high temperature and pressure saturated vapor at a pressure of 2.0 MPa or above. The process provides the slag with reliable volume stability and makes it possible to meet desired requirements of various building materials. Additionally, the process is low cost, non-polluting, and of very high industrial value.

8. 发明申请

US20210309570A1 CEMENT-SCM COMPOSITIONS AND METHODS AND SYSTEMS FOR THEIR MANUFACTURE 有权
公开(公告)号：US20210309570A1
公开(公告)日：2021-10-07
申请号：US16944587
申请日：2020-07-31
申请人： ROMAN CEMENT, LLC
发明人： John M. Guynn
IPC分类号： C04B7/13 , C04B7/02 , C04B7/26 , C04B7/28 , C04B7/147 , C04B40/00 , C04B20/02
摘要： Method of efficiently manufacturing cement-SCM compositions having improved strength compared to cement-SCM compositions made using conventional methods. The cement-SCM compositions may contain: (A) a fine interground particulate component with (1) a hydraulic cement fraction and (2) a supplementary cementitious material (SCM) fraction; (B) a coarse particulate component comprised of coarse SCM particles not interground with the fine interground particulate component; and optionally (C) an auxiliary particulate component not interground with the fine interground particulate component or the coarse particulate component. A method of manufacturing a cement-SCM composition may be performed by: (A) intergrinding hydraulic cement (e.g., cement clinker) with one or more SCMs to form a fine interground particulate component; (B) blending, without intergrinding, the fine interground particulate component with a coarse particulate component comprised of coarse SCM particles; and optionally (C) further combining, without intergrinding, an auxiliary particulate component with the fine interground particulate component and the coarse particulate component.

9. 发明授权

US11034617B2 Steel product, cement manufacturing process and cement 有权
公开(公告)号：US11034617B2
公开(公告)日：2021-06-15
申请号：US15849038
申请日：2017-12-20
申请人： Gerdau S.A.
发明人： Marina Reno Barbosa , Alexandre de Matos , Edson Geraldo da Silva , Arnaldo Dias de Andrade , Ruben Antonio Sole , Fernando Gabriel da Silva Araujo , Jefferson Januario Mendes , Fernando Leopoldo von Krueger
IPC分类号： C04B5/00 , C04B7/14 , C04B28/08 , C04B5/06 , C04B7/147 , C21B3/08 , C04B7/40 , C04B7/00 , C04B7/34 , C04B28/00 , C04B32/00 , C04B103/52
摘要： The present invention relates to a novel cementitious product produced from steelworks slag additivation to obtain material having properties suitable for use in the partial or total clinker replacement for the production of different types of cement. The process, which is also object of this invention, aims to adapt the properties of steelworks slag, by means of thermochemical treatment, including and preferably, but not only, still in the liquid steelworks slag pot, taking advantage of the thermal input of steel processing, to form a greater amount of alite (essential compound to increase pozzolanicity), under controlled conditions. After additivation, preferably, but not exclusively, the additivated steelworks slag is subjected to quenching, comminution and concentration to stabilize the alite fraction, to release the present phases and to remove any excess contaminants, such as metallic iron.

10. 发明申请

US20180170805A1 STEEL PRODUCT, CEMENT MANUFACTURING PROCESS AND CEMENT 审中-公开
公开(公告)号：US20180170805A1
公开(公告)日：2018-06-21
申请号：US15849038
申请日：2017-12-20
申请人： Gerdau S.A.
发明人： Marina Reno Barbosa , Alexandre de Matos , Edson Geraldo da Silva , Arnaldo Dias de Andrade , Ruben Antonio Sole , Fernando Gabriel da Silva Araujo , Jefferson Januario Mendes , Fernando Leopoldo von Krueger
IPC分类号： C04B5/06 , C21B3/10 , C04B7/147 , C04B28/08 , C04B103/52
CPC分类号： C04B5/06 , C04B7/147 , C04B7/40 , C04B28/082 , C04B2103/52 , C21B3/08 , Y02P40/143 , Y02W30/94 , C04B14/06 , C04B18/142 , C04B40/0028
摘要： The present invention relates to a novel cementitious product produced from steelworks slag additivation to obtain material having properties suitable for use in the partial or total clinker replacement for the production of different types of cement. The process, which is also object of this invention, aims to adapt the properties of steelworks slag, by means of thermochemical treatment, including and preferably, but not only, still in the liquid steelworks slag pot, taking advantage of the thermal input of steel processing, to form a greater amount of alite (essential compound to increase pozzolanicity), under controlled conditions. After additivation, preferably, but not exclusively, the additivated steelworks slag is subjected to quenching, comminution and concentration to stabilize the alite fraction, to release the present phases and to remove any excess contaminants, such as metallic iron.

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