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. 发明授权

US5187303A Process for the preparation of octyl methoxy cinnamate 失效
标题翻译：制备OCTYY METHOXY CINNAMATE的方法
公开(公告)号：US5187303A
公开(公告)日：1993-02-16
申请号：US868042
申请日：1992-04-14
申请人： Amihai Eisenstadt , Yehuda Keren
发明人： Amihai Eisenstadt , Yehuda Keren
IPC分类号： B01J23/44 , C07B61/00 , C07C67/343 , C07C69/734
CPC分类号： C07C67/343
摘要： Octyl methoxy cinnamate of the formula ##STR1## is prepared by reacting p-bromoanisole with octyl-acrylate in an inert solvent, in the presence of a base and of a coupling catalyst.

2. 发明授权

US5698142A Process for the production of finely granulated solid chemical compounds 失效
标题翻译：生产细颗粒状固体化合物的方法
公开(公告)号：US5698142A
公开(公告)日：1997-12-16
申请号：US640066
申请日：1996-04-30
申请人： Avi Prager , Moti Veinberg , Baruch Grinbaum , Yehuda Keren , Rafael Shemer , Iulio Bitherfeld , Leonid Zaslavsky
发明人： Avi Prager , Moti Veinberg , Baruch Grinbaum , Yehuda Keren , Rafael Shemer , Iulio Bitherfeld , Leonid Zaslavsky
IPC分类号： B01J2/00 , B01J2/10 , C07B61/00 , C07C7/14 , C07C13/28 , C07C37/84 , B29B9/10
CPC分类号： B01J2/10 , C07C37/84
摘要： A method for the production of finely particulate solid chemical products from a molten stock comprises the steps of: (a) feeding the product, as molten stock, to an elongated treatment space, sealed from the ambient; (b) causing the product to flow as a flowable mass within space, while leaving a free portion of said space above the surface of said mass; (c) maintaining in said space an atmosphere that is non-reactive with said product; (d) subjecting said product to a stirring and mixing action by rotary means; (e) concurrently cooling said product as it proceeds along said space, whereby to solidify it; (f) concurrently detaching any product that adheres to surfaces within said space; and (g) discharging the solidified product, in the form of solid particles, from said elongated treatment space.
摘要翻译：用于从熔融坯料生产细颗粒状固体化学产品的方法包括以下步骤：（a）将作为熔融原料的产品供给到与环境密封的细长处理空间; （b）使产品作为可流动的物料在空间内流动，同时在所述物料的表面上留下所述空间的空闲部分; （c）在所述空间内保持与所述产品无反应的气氛; （d）通过旋转方式对所述产物进行搅拌和混合作用; （e）当所述产品沿着所述空间进行时同时冷却所述产品，由此使其固化; （f）同时分离粘附在所述空间内的表面的任何产品; 和（g）从所述细长处理空间排出固体颗粒形式的固化产品。

3. 发明授权

US5315008A Process for the preparation of isothiazolone 失效
标题翻译：异噻唑酮的制备方法
公开(公告)号：US5315008A
公开(公告)日：1994-05-24
申请号：US831465
申请日：1992-02-05
申请人： Reinhard Effenberger , Leonard Shorr , Yehuda Keren
发明人： Reinhard Effenberger , Leonard Shorr , Yehuda Keren
IPC分类号： C07D275/02 , C07D275/03 , C07D91/10
CPC分类号： C07D275/03
摘要： Mixtures of 2-methyl-isothiazolin-3-one (5H-MIT) and 5-chloro-2-methylisothiazolin-3-one (5Cl-MIT), are prepared by the chlorination of N-methyl-3-mercaptopropionamide (MMPA) with chlorine in a halogenated solvent in continuous operation.
摘要翻译：通过氯化N-甲基-3-巯基丙酰胺（MMPA）制备2-甲基 - 异噻唑啉-3-酮（5H-MIT）和5-氯-2-甲基异噻唑啉-3-酮（5Cl-MIT）的混合物，在卤化溶剂中用氯连续操作。

4. 发明授权

US4511543A Method for beneficiation of phosphate rock 失效
标题翻译：磷酸盐岩选矿方法
公开(公告)号：US4511543A
公开(公告)日：1985-04-16
申请号：US590278
申请日：1984-03-16
申请人： Yehuda Keren , Shmuel Carmon , Meyer Behar , Shimshon Axelrod
发明人： Yehuda Keren , Shmuel Carmon , Meyer Behar , Shimshon Axelrod
IPC分类号： B07B15/00 , C01B25/01 , C01F1/00 , C01F5/00
CPC分类号： C01B25/01 , Y02P20/129
摘要： The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P.sub.2 O.sub.5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700.degree. C. to 1600.degree. C. for a period of below 60 seconds and subsequently the fines are removed by a conventional classification method thus obtaining an up-graded phosphate product with a relatively low cadmium content. The up-graded phosphate product is also characterized by a relatively low sulfide content as well as low organic matter, which are very advantageous in the phosphoric acid manufacture therefrom. One of the advantages of the method is the almost complete recovery of the P.sub.2 O.sub.5 present in the phosphate rock since no slaking for calcium oxide removal is utilized.
摘要翻译：本发明涉及通过热处理对磷酸盐岩进行选矿的方法，其中实现了煅烧产物中P 2 O 5明显增加和镉含量的降低。根据本发明，磷酸盐岩与温度在700℃至1600℃之间的热气体接触低于60秒的时间，随后通过常规的分级方法除去细粉，从而获得具有较低镉含量的高级磷酸盐产品。升级的磷酸盐产品的特征还在于硫化物含量相对较低以及低有机物质，这在其磷酸制造中是非常有利的。该方法的优点之一是磷酸盐岩中存在的P2O5几乎完全恢复，因为不利用去除氧化钙。

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