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1. 发明授权

US08268280B2 Method for production of calcium compounds 有权
标题翻译：钙化合物的生产方法
公开(公告)号：US08268280B2
公开(公告)日：2012-09-18
申请号：US12744803
申请日：2009-01-07
申请人： Torfinn Buseth , Einar Andersen
发明人： Torfinn Buseth , Einar Andersen
IPC分类号： C01F11/18 , C01F11/06 , C01F11/24 , C01B25/00 , C01B35/00 , C01B13/18 , C01B13/36 , C01G49/10
CPC分类号： C01F11/32 , C01F11/00 , C01F11/02 , C01F11/16 , C01F11/18 , C01F11/46 , C01P2006/80
摘要： The present invention relates to a method for production of calcium compounds having very low content of phosphorus and boron from an impure calcium chloride, solution containing phosphorus and boron, which method comprises the following steps: a) addition of a FeCl3-solution to the calcium chloride solution, b) adjusting the pH of the solution by addition of a base to between 3 and 9.5 for precipitation of iron hydroxide, iron phosphate and boron compounds, c) removal of the solid precipitate from the solution in step b) obtaining a purified calcium chloride solution, d) precipitation of a calcium compound from the solution from step c), and e) separation of the calcium compound from the solution in step d).
摘要翻译：本发明涉及一种从不纯的氯化钙，含磷和硼的溶液中生产具有非常低的磷和硼含量的钙化合物的方法，该方法包括以下步骤：a）将FeCl 3溶液加入到钙氯化物溶液，b）通过添加碱将溶液的pH调节至3至9.5之间以沉淀氢氧化铁，磷酸铁和硼化合物，c）在步骤b）中从溶液中除去固体沉淀物获得纯化的氯化钙溶液，d）从步骤c）的溶液中沉淀钙化合物，和e）在步骤d）中从钙溶液中分离钙化合物。

2. 发明申请

US20100303707A1 METHOD FOR PRODUCTION OF CALCIUM COMPOUNDS 有权
标题翻译：钙化合物的生产方法
公开(公告)号：US20100303707A1
公开(公告)日：2010-12-02
申请号：US12744803
申请日：2009-01-07
申请人： Torfinn Buseth , Einar Andersen
发明人： Torfinn Buseth , Einar Andersen
IPC分类号： C01F11/32
CPC分类号： C01F11/32 , C01F11/00 , C01F11/02 , C01F11/16 , C01F11/18 , C01F11/46 , C01P2006/80
摘要： The present invention relates to a method for production of calcium compounds having very low content of phosphorus and boron from an impure calcium chloride, solution containing phosphorus and boron, which method comprises the following steps: a) addition of a FeCl3-solution to the calcium chloride solution, b) adjusting the pH of the solution by addition of a base to between 3 and 9.5 for precipitation of iron hydroxide, iron phosphate and boron compounds, c) removal of the solid precipitate from the solution in step b) obtaining a purified calcium chloride solution, d) precipitation of a calcium compound from the solution from step c), and e) separation of the calcium compound from the solution in step d).
摘要翻译：本发明涉及一种从不纯的氯化钙，含磷和硼的溶液中生产具有非常低的磷和硼含量的钙化合物的方法，该方法包括以下步骤：a）将FeCl 3溶液加入到钙氯化物溶液，b）通过添加碱将溶液的pH调节至3至9.5之间以沉淀氢氧化铁，磷酸铁和硼化合物，c）在步骤b）中从溶液中除去固体沉淀物获得纯化的氯化钙溶液，d）从步骤c）的溶液中沉淀钙化合物，和e）在步骤d）中从钙溶液中分离钙化合物。

3. 发明授权

US3104158A Process for making calcium oxide suitable for manufacturing calcium carbide 失效
标题翻译：制造适合制造电石的氧化钙的方法
公开(公告)号：US3104158A
公开(公告)日：1963-09-17
申请号：US8878361
申请日：1961-02-13
申请人： WACKER CHEMIE GMBH
发明人： EDUARD ENK , WOLFGANG LEICHER , WALTER SCHINDELIN
IPC分类号： C01B32/942 , C01F11/16 , C10H21/16
CPC分类号： C10H21/16 , C01B32/942 , C01F11/16
摘要： CaO suitable for making CaC2 is produced by causing pulverulent Ca(OH)2, resulting from the manufacture of C2H2 from CaC2 and containin as impurities metallic iron and ion compounds, to fall freely through a magnetic field to remove the said impurities, and then the purified Ca(OH)2 is calcined and sintered to yield CaO. The purified hydroxide may be briquetted with anthracite, e.g. 7%, and calcined to oxide. An example compares separation of iron and ferrosilicon from the hydroxide by allowing it to fall past a magnetic drum, with the prior art operation of allowing the hydroxide to fall on to the drum.

4. 发明授权

US6074521A Method of separating impurities from lime and lime sludge 失效
标题翻译：从石灰和石灰泥中分离杂质的方法
公开(公告)号：US6074521A
公开(公告)日：2000-06-13
申请号：US981642
申请日：1998-01-08
申请人： Holgor Engdahl , Jouni Jantti , Kurt Siren , Juhani Vehmaan-Kreula , Pasi Vanttinen
发明人： Holgor Engdahl , Jouni Jantti , Kurt Siren , Juhani Vehmaan-Kreula , Pasi Vanttinen
IPC分类号： C01F11/16 , C01F11/18 , D21C11/00 , D21C11/04
CPC分类号： C01F11/16 , D21C11/0078 , D21C11/04 , Y02P40/44
摘要： A method of separating impurities from lime or the calcium carbonate or the lime sludge produced in the chemical recovery system of a pulp mill so that lime sludge or lime is dissolved in a solution containing carbonate or hydrocarbonate in order to dissolve impurities. Subsequently the lime sludge or lime is separated from the solution containing dissolved impurities. A method of causticizing green liquor containing impurities, such as silicon, in two stages. In the first stage green liquor is causticized with such an amount of lime that impurities substantially remain in the liquor. The lime produced in this stage is removed from the liquor and the rest of the lime required in the causticizing is added to this liquor, so that impurities precipitate with the lime sludge produced in the second stage and at least a portion of the lime sludge rich in impurities is discharged from the process.
摘要翻译： PCT No.PCT / FI96 / 00406 Sec。 371日期1998年1月9日 102（e）1998年1月9日PCT PCT 1996年7月10日PCT公布。出版物WO97 / 03245 日本1997年1月30日在纸浆厂的化学回收系统中分离石灰或碳酸钙或石灰污泥中的杂质的方法，使得石灰粘泥或石灰溶解在含有碳酸盐或碳酸氢盐的溶液中以便溶解杂质。随后将石灰渣或石灰与含溶解杂质的溶液分离。将含有杂质（如硅）的绿液在两个阶段中苛化的方法。在第一阶段，绿液用这样一定量的石灰碱化，使得杂质基本上留在液体中。在该阶段中生产的石灰从液体中除去，并且将苛性碱中所需的其余石灰加入到该液体中，使得杂质与第二阶段产生的石灰粘泥沉淀，并且至少一部分富含石灰渣杂质从工艺中排出。

5. 发明授权

US3320026A Method of preparing calcite and the product thereof 失效
标题翻译：方解石的制备方法及其制法
公开(公告)号：US3320026A
公开(公告)日：1967-05-16
申请号：US34634964
申请日：1964-02-20
申请人： PFIZER & CO C
发明人： WALDECK WILLIAM F
IPC分类号： C01F11/16 , C01F11/18
CPC分类号： C01F11/181 , C01F11/16 , C01P2004/11

6. 发明授权

US2127626A Purifying lime 失效
标题翻译：净化石灰
公开(公告)号：US2127626A
公开(公告)日：1938-08-23
申请号：US8704136
申请日：1936-06-24
申请人： BLOCKSON CHEMICAL CO
发明人： LOUIS BLOCK
IPC分类号： C01F11/16
CPC分类号： C01F11/16

7. 发明授权

US2021663A Method of producing lime 失效
公开(公告)号：US2021663A
公开(公告)日：1935-11-19
申请号：US69095333
申请日：1933-09-25
申请人： VICTOR CHEMICAL WORKS
发明人： KNOX JR WILLIAM H
IPC分类号： C01F11/16 , C04B2/10
CPC分类号： C01F11/16 , C04B2/10

8. 发明授权

US11834342B2 Method of preparing ionized calcium oxide powder 有权
公开(公告)号：US11834342B2
公开(公告)日：2023-12-05
申请号：US17155119
申请日：2021-01-22
申请人： Dong Chan Koo
发明人： Dong Chan Koo
IPC分类号： B01J20/24 , C01F11/06 , C25B1/50 , C01F11/16 , C25B1/18 , C25B15/02
CPC分类号： C01F11/06 , C01F11/16 , C25B1/18 , C25B1/50 , C25B15/02
摘要： A method of preparing an ionized calcium oxide powder is provided, including steps of washing and drying shellfish, pulverizing the shellfish into a powder, subjecting the powder to a heat treatment, subjecting the powder to an electrolysis treatment, and subjecting the powder to an ultrasonic treatment.

9. 发明授权

US08480018B2 Method and apparatus for the preparation of finely divided calcium hydroxide 有权
标题翻译：用于制备细碎氢氧化钙的方法和装置
公开(公告)号：US08480018B2
公开(公告)日：2013-07-09
申请号：US13123495
申请日：2009-10-29
申请人： Pentti Virtanen
发明人： Pentti Virtanen
IPC分类号： B02C13/00 , B02C13/20 , B02C21/00
CPC分类号： C04B2/04 , B02C13/205 , B02C13/286 , B02C2013/28654 , C01F11/02 , C01F11/16 , C01P2004/64 , C04B2/08
摘要： Method for the preparation of finely divided calcium hydroxide, where calcium oxide is comminuted in an impact disintegrator into which in addition to the calcium hydroxide a small amount of water is led to wet the particles obtained and to bind the dust. The calcium oxide powder is led to a conveyor being in connection with the impact disintegrator and operating as a pre-quencher, to which conveyer water is added and where the material is subjected to a kneading effect. The material which is a mixture of calcium oxide and calcium hydroxide is led from the conveyor to a cistern operating as post-quencher, to which cistern the remaining portion of the total water amount required for quenching is added. The amount of water added to the impact disintegrator and to the pre-quencher is altogether 20 . . . 50% of the total amount of water required for quenching, preferably about ⅓ of the total amount of water required for quenching, and the amount of water added to the post-quencher is 80 . . . 50% of the total amount of water required for quenching, preferably about ⅔ of the total amount of water required for quenching.
摘要翻译：制备细碎氢氧化钙的方法，其中将氧化钙粉碎在冲击式粉碎机中，除了氢氧化钙之外，少量的水导致其中所得到的颗粒湿润并结合灰尘。氧化钙粉末被引导到与冲击破碎机相连的输送机，并作为预淬火器操作，向其中加入输送机水，并且材料经受捏合作用。作为氧化钙和氢氧化钙的混合物的材料从输送机引导到作为后淬火器操作的水箱，向其中添加用于淬火所需的总水量剩余部分。添加到冲击粉碎机和预淬火剂中的水量总共为20。。。淬火所需水量的50％，优选淬火所需水量的约1/3，并且添加到后淬火剂中的水量为80。。。淬火所需水量的50％，优选淬火所需水量的2/3左右。

10. 发明授权

US2434710A Process of treating alkaline earth hydrates or oxides, and the resulting product 失效
标题翻译：处理碱土金属水合物或氧化物的方法，以及所得产物
公开(公告)号：US2434710A
公开(公告)日：1948-01-20
申请号：US53620044
申请日：1944-05-18
申请人： CORSON G & W H
发明人： JOHN MINNICK LEONARD
IPC分类号： C01F11/16
CPC分类号： C01F11/16

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