专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB508925A Process for the separation of the component parts of alloys or mixtures of metals 未知
公开(公告)号：GB508925A
公开(公告)日：1939-07-07
申请号：GB2959338
申请日：1938-10-12
申请人： PAUL KEMP
IPC分类号： C22B7/00
摘要： 508,925. Extracting metals from mixtures and alloys. KEMP, P. Oct. 12, 1938, No. 29593. Convention date, Oct. 25, 1937. [Class 82 (i)] In a process of separating the constituents of metallic mixtures and alloys by liquation, the liquid portion is separated from the solid residue by forcing the mass under a pressure of at least 500 atmospheres against a member pervious to the liquid portion. The pressure may be obtained by means of a compressed gas or a mechanical press. In the press shown, the melted. alloy is placed in the receiver 1, which may be heated by a burner 6, and after cooling to liquation temperature is forced by the piston 4 through a perforated member 2 into a container 5. Alternatively, the alloy may be introduced in the solid state, or allowed to solidify in the receiver, in which it is subsequently heated to liquation temperature. In some cases, especially when the alloy contains only a small proportion of the component which is solid during liquation, a preliminary separation by known liquation methods may be employed, the residue being then further separated by the present method under high pressure. Fractional separation of an alloy of several metals may be carried out by subjecting the liquid component of a first separation to a further separation at a lower temperature, or the solid component to one at a higher temperature. The separation may be facilitated by the addition of a metal or alloy which combines with certain of the alloy constituents to form a liquation component. For example, silver may be extracted from lead by adding zinc, and antimony from lead or tin alloys by adding aluminium. The process may be applied to the production of white or speculum metal from tin alloys containing lead and copper ; the extraction of tin and lead from zinc alloys ; the separation of lead alloys into type metal and a residue of high antimony content; and the extraction of tin and antimony from scrap lead. Examples are given of the treatment of alloys containing tin, antimony, copper and lead, and of tin, antimony and lead.

2. 发明专利

GB421297A Method for the production of finely divided lead or lead oxide 未知
公开(公告)号：GB421297A
公开(公告)日：1934-12-18
申请号：GB2487133
申请日：1933-09-07
申请人： PAUL KEMP , EMANUEL FEUER
IPC分类号： B22F9/08
摘要： Finely divided lead is produced by disintegrating molten lead in a rotating chamber provided with disintegrating means such as ribs or stirrers, the lead being maintained at the necessary temperature entirely by means of hot gases which act directly on the lead and which contain no component which will react with the lead. The finely divided lead may subsequently be oxidized in a separate chamber, the heat of oxidation being utilized to melt the lead which is being supplied to the disintegrating chamber. The hot gases from a coke fire 1 pass into a rotating chamber 4 in which molten lead is disintegrated, the gases supplying all the heat necessary to maintain the lead at the required temperature, about 1 DEG C. above the melting point. The finely divided lead is carried by the gases into a rotary oxidizing chamber 7, air being drawn in through an adjustable opening 6. Steel cones may be provided in the chamber 7 to grind the precipitated lead oxide which is subsequently removed at 13. Waste gases are drawn off by a suction device through a channel 12 to a purifying plant. A vessel 8 is provided in the chamber 7 to which lead is fed through openings 10, 11, the lead being melted in the vessel 8 by the heat of oxidation of the finely divided lead in the chamber 7 and passing from the vessel 8 through the tube 9 into the disintegrating chamber 4. The Specification as open to inspection under Sect. 91 refers to the production of lead compounds in general and describes a disintegrating drum in which the lead is raised up during the rotation and allowed to fall on to a plurality of conical surfaces mounted on a shaft rotating a high speed. This subject-matter does not appear in the Specification as accepted.

3. 发明专利

GB379855A Process and apparatus for the production of zinc white 未知
公开(公告)号：GB379855A
公开(公告)日：1932-09-08
申请号：GB2458431
申请日：1931-09-01
申请人： EMANUEL FEUER , PAUL KEMP
IPC分类号： C09C1/04 , C22B19/34
摘要： Zinc white is obtained by vaporizing zinc or other metallic zinc-containing metal in one region directly by means of hot gases which contain no constituents such as oxygen or carbon dioxide which would react with the zinc, the zinc vapour being thereafter carried over to the oxidation region. Reference is made to the use of suitably purified gases from generator, roasting and oil furnaces. The gases may be passed over or through the metal, which, in the former event, may be covered with anthracite or coke. Metallic bye-products are removed from the vaporization region for further treatment. A furnace shown in the Figure comprises a coke-filled shaft 1, the upper end of which is provided with an adjustable perforated disc 5 through which air is admitted. The combustion gases pass through a layer of coke 12 provided in the rotary drum 8 over the zinc contained therein. The zinc vapours are burned in chamber 13, air-inlet apertures 15 being provided for this purpose. The bath is replenished by feeding zinc into the conduit 18, the metal being melted by the heat of combustion of the zinc. In a modified apparatus, the rotary drum 8 is not present, the metal from conduit 18 falling on to the top of a column of burning coke contained in vertical shaft furnace, up through which air is passed.

4. 发明专利

GB747312A Refining of copper-base alloys 未知
公开(公告)号：GB747312A
公开(公告)日：1956-04-04
申请号：GB1378354
申请日：1954-05-11
申请人： PAUL KEMP
IPC分类号： C22B15/00 , C22B15/14
摘要： The Pb content of a Cu-base alloy is reduced by treating the alloy, preferably finely divided e.g. in the form of chippings, turnings or grindings, with a solution of nitric acid containing no other substance which will react with the alloy. The alloy is degreased and treated with a solution containing, for example, 2-13 per cent by volume of nitric acid of density 1,42 in water. Treatment may take place at atmospheric temperature and in a revolving container. Two successive treatments may be used, the first in a relatively weak solution, for example the solution which has been used with a previous charge, and the second in a stronger solution. Lead may be recovered from the solution by precipitation as hydroxide or carbonate. Examples are given of the treatment of an alloy containing Cu 84,3 per cent, Sn 6,7 per cent, Pb 4,6 per cent and Zn 4,3 per cent, the final alloy containing Cu 87,7 per cent, Sn 6,9 per cent, Pb 1,0 per cent and Zn 4,2 per cent, and of the treatment of an alloy containing Cu 75,8 per cent, Sn 7,5 per cent, Pb 14,7 per cent and Zn 1,8 per cent, the final alloy containing Cu 87,0 per cent, Sn 8,6 per cent, Pb 2,3 per cent and Zn 2,1 per cent.

5. 发明专利

DE616487C 未知
公开(公告)号：DE616487C
公开(公告)日：1935-08-03
申请号：DEF0071204
申请日：1931-06-12
申请人： EMANUEL FEUER DR , PAUL KEMP DR
IPC分类号： C01G9/02

6. 发明专利

DE531066C 未知
公开(公告)号：DE531066C
公开(公告)日：1931-08-04
申请号：DEK0109440
申请日：1928-05-12
申请人： PAUL KEMP DR
IPC分类号： C22C3/00

7. 发明专利

DE698423C 未知
公开(公告)号：DE698423C
公开(公告)日：1940-11-09
申请号：DEK0148321
申请日：1937-10-26
申请人： PAUL KEMP DR
发明人： KEMP DR PAUL
IPC分类号： C22B7/00

8. 发明专利

GB505146A Alloys suitable for use as bearing metals 未知
公开(公告)号：GB505146A
公开(公告)日：1939-05-05
申请号：GB2169938
申请日：1938-07-21
申请人： PAUL KEMP
IPC分类号： C22C11/10
摘要： 505,146. Alloys. KEMP, P. July 21, 1938, No. 21699. Convention date, July 21, 1937. [Class 82(i)] An alloy of high percussion strength suitable for bearing-metals consists of 80-86 per cent of lead as well as tin, antimony, and a small quantity of cadmium or arsenic or both, the content of antimony, arsenic, and cadmium being at most equal to, and preferably not less than, the tin content. In an example, 6-10 per cent of tin and 6-10 per cent of antimony plus arsenic plus cadmium are present and in a preferred range 7-9 per cent of tin, 7-9 per cent of antimony, arsenic and cadmium, of which 6-7 per cent are of antimony, 0À3-1 per cent of arsenic and 0À7-1À5 per cent of cadmium. If desired, up to 2 per cent of copper may be present. Austrian Specifications 130,903 and 135,895 and U.S.A. Specification 1,754,364, as well as an alloy comprising 78À5 per cent of lead, 1 per cent of arsenic, 1À5 per cent of copper, 10 per cent of antimony, and 8 per dent of tin, are referred to.

9. 发明专利

DE653372C 未知
公开(公告)号：DE653372C
公开(公告)日：1937-11-22
申请号：DEK0127215
申请日：1932-10-05
申请人： PAUL KEMP DR ING , EMANUEL FEUER DR
IPC分类号： C01G21/00 , C01G21/02

10. 发明申请

US20160257930A1 NEURONAL STEM CELL DIFFERENTIATION 审中-公开
标题翻译：神经干细胞分化
公开(公告)号：US20160257930A1
公开(公告)日：2016-09-08
申请号：US15029164
申请日：2014-10-13
申请人： Paul KEMP , Nicholas ALLEN
发明人： Paul Kemp , Nicholas Allen
IPC分类号： C12N5/0793
CPC分类号： C12N5/0619 , C12N2500/14 , C12N2500/38 , C12N2501/01 , C12N2501/13 , C12N2501/40 , C12N2501/415 , C12N2501/42 , C12N2501/845 , C12N2501/999 , C12N2506/08
摘要： The invention relates to at least one novel neural cell differentiation medium for the production of neural cells from at least one precursor cell capable of lineage specific differentiation; a method for neural cell differentiation using said medium; the use of said medium and said method for lineage specific differentiation of at least one precursor cell towards a neural cell fate; and a kit of parts comprising said at least one said neural cell differentiation medium.
摘要翻译：本发明涉及至少一种用于从至少一种能够谱系特异性分化的前体细胞产生神经细胞的新型神经细胞分化培养基; 使用所述培养基的神经细胞分化方法; 所述培养基的使用和所述方法用于至少一种前体细胞对神经细胞命运的谱系特异性分化; 以及包含所述至少一种所述神经细胞分化培养基的试剂盒。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式