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

US4452768A Process for removing heavy metal ions from wet-processed phosphoric acid 失效
标题翻译：从湿法磷酸中去除重金属离子的方法
公开(公告)号：US4452768A
公开(公告)日：1984-06-05
申请号：US455252
申请日：1983-01-03
申请人： Reinhard Gradl , Gunther Schimmel , Werner Krause , Gero Heymer
发明人： Reinhard Gradl , Gunther Schimmel , Werner Krause , Gero Heymer
IPC分类号： C01B25/238 , B01D11/04 , C01B25/237 , C01B25/46 , C01G1/00 , C01B25/16 , B01D11/00 , B03C1/00 , C01G17/00
CPC分类号： C01B25/237 , C22B3/24 , Y02P10/234
摘要： The disclosure relates to process for removing heavy metal ions, especially cadmium, copper, lead and mercury ions from wet-processed phosphoric acid. To this end, the crude acid is contacted with a mixture consisting of an adsorbent and a diorganyldithiophosphoric acid ester or, after treatment with the ester, the acid is contacted with the adsorbent alone, and the purified phosphoric acid is ultimately separated from the ester and adsorbent.
摘要翻译：本公开涉及从湿法处理的磷酸中去除重金属离子，特别是镉，铜，铅和汞离子的方法。为此，将粗酸与由吸附剂和二有机基二硫代磷酸酯组成的混合物接触，或者在用酯处理后，酸与吸附剂单独接触，纯化的磷酸最终与酯分离，吸附剂。

2. 发明授权

US4705529A Process for reducing the reactivity and improving the flow behavior of phosphorus pentoxide 失效
标题翻译：减少五氧化二磷的反应活性和改善流动行为的方法
公开(公告)号：US4705529A
公开(公告)日：1987-11-10
申请号：US818719
申请日：1986-01-14
申请人： Gunther Schimmel , Werner Kowalski , Gero Heymer , Reinhard Gradl
发明人： Gunther Schimmel , Werner Kowalski , Gero Heymer , Reinhard Gradl
IPC分类号： C01B25/12
CPC分类号： C01B25/12
摘要： The reactivity of phosphorus pentoxide is reduced and its flow behavior improved. To this end, phosphorus pentoxide in the form of its hexagonal modification is annealed over a period of 0.5 to 8 hours at temperatures of 200.degree. to 390.degree. C.
摘要翻译：五氧化二磷的反应性降低，流动性提高。为此，以六角形改性形式的五氧化二磷在200〜390℃的温度下退火0.5〜8小时。

3. 发明授权

US4620966A Process for defluorinating alkali metal phosphate solutions 失效
标题翻译：氟化碱金属磷酸盐溶液的方法
公开(公告)号：US4620966A
公开(公告)日：1986-11-04
申请号：US619057
申请日：1984-06-11
申请人： Gunther Schimmel , Herbert Ressel , Gero Heymer , Reinhard Gradl
发明人： Gunther Schimmel , Herbert Ressel , Gero Heymer , Reinhard Gradl
IPC分类号： C01B25/30 , C01B25/16
CPC分类号： C01B25/308
摘要： The disclosure relates to a process for defluorinating alkali metal phosphate solutions. To this end, the disclosure provides for an alkali metal phosphate solution neutralized to a pH-value of more than 6 and pre-purified to be stirred at 60.degree. to 120.degree. C. into an alkaline earth metal compound. Alkaline earth metal compounds with a solubility in water of less than 5 g/l are used in the form of particles of which more than 50% have a size of less than 8 .mu.m. After a reaction period of 0.5 to 4 hours, the precipitate obtained is separated from the purified alkali metal phosphate solution.
摘要翻译：本公开涉及一种氟化碱金属磷酸盐溶液的方法。为此，本公开内容提供将中和至pH值大于6并经60℃至120℃预纯化以进入碱土金属化合物的碱金属磷酸盐溶液。在水中的溶解度小于5g / l的碱土金属化合物以超过50％的尺寸小于8μm的颗粒的形式使用。反应时间为0.5〜4小时后，从纯化的碱金属磷酸盐溶液中分离得到的沉淀物。

4. 发明授权

US4539192A Process for removing fluorine and organic compounds from prepurified wet processed phosphoric acid 失效
标题翻译：从预纯化湿法磷酸中除去氟和有机化合物的方法
公开(公告)号：US4539192A
公开(公告)日：1985-09-03
申请号：US625456
申请日：1984-06-28
申请人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
发明人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
IPC分类号： C01B25/234 , C01B25/237 , C01B25/46 , C01B25/16
CPC分类号： C01B25/461 , C01B25/237
摘要： The disclosure provides for phosphoric acid to be freed in a single process stage from fluorine and organic contaminants. To this end, the disclosure provides for the acid to be introduced into the upper portion of a closed structural element, for it to be treated therein at elevated temperature and pressure with steam flowing countercurrently to the acid, and for the acid so treated to be reacted in the lower portion of the structural element with hydrogen peroxide. The disclosure also provides an apparatus for carrying out the process.
摘要翻译：本公开提供在单一工艺阶段中从氟和有机污染物中释放的磷酸。为此，本公开提供了将酸引入封闭结构元件的上部，以使其在升高的温度和压力下被处理，其中蒸汽与酸反向流动，并且对于被酸处理的酸在结构元件的下部与过氧化氢反应。本公开还提供了一种用于执行该过程的装置。

5. 发明授权

US4460549A Recovery of uranium from wet-process phosphoric acid 失效
标题翻译：从湿法磷酸中回收铀
公开(公告)号：US4460549A
公开(公告)日：1984-07-17
申请号：US229978
申请日：1981-01-30
申请人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
发明人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
IPC分类号： B01D11/04 , C01G43/00 , C22B60/02
CPC分类号： C22B60/026 , Y02P10/212
摘要： The present invention relates to a process for recovering uranium from raffinate which is obtained by extracting phosphoric acid from a uranium-containing wet-process phosphoric acid with the aid of organic extractants and separating the resulting organic phosphoric acid extract from residue not taken up by the extract. To this end, the raffinate residue is subjected to thermal treatment and thereby freed from dissolved or emulsified residual extractant. Next, the raffinate is treated with a water-immiscible solvent to extract the uranium, and the extracted uranium is separated from the undissolved raffinate portion.
摘要翻译：本发明涉及从萃余液中回收铀的方法，该方法是通过有机萃取剂从含铀的湿法磷酸中提取磷酸而得到的，并将所得的有机磷酸提取物从不被提取。为此，对残液进行热处理，从而除去溶解或乳化残渣的萃取剂。接下来，用不与水混溶的溶剂处理萃余液以提取铀，并将萃取的铀与未溶解的萃余液部分分离。

6. 发明授权

US4466948A Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid 失效
标题翻译：从湿法处理的磷酸中去除重金属离子和砷的工艺
公开(公告)号：US4466948A
公开(公告)日：1984-08-21
申请号：US508272
申请日：1983-06-24
申请人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
发明人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
IPC分类号： C01B25/237 , C01B25/238 , C01G1/00 , C01G3/00 , C01G11/00 , C01G13/00 , C01G21/00 , C01G28/00 , C22B3/38 , C01B25/16 , B01D11/00 , B03C1/00 , C01G17/00
CPC分类号： C01G3/003 , C01B25/238 , C01G11/003 , C01G13/003 , C01G21/003 , C01G28/001 , C22B3/007 , C22B3/24 , Y02P10/234
摘要： The disclosure relates to a process for removing heavy metal ions and arsenic from wet-processed phosphoric acid, wherein the crude wet-processed phosphoric acid is treated at temperatures between 10.degree. and 100.degree. C. initially with a diorganyldithiosphosphoric acid ester and then with an adsorbent, and the phoshoric acid so purified is separated from the ester and adsorbent. More particularly, the wet-processed phosphoric acid is treated with the diorganyldithiophosphoric acid ester at temperatures higher than 50.degree. C. and with the adsorbent at temperatures lower than 50.degree. C.
摘要翻译：本公开涉及从湿法处理的磷酸中除去重金属离子和砷的方法，其中粗制湿法处理的磷酸最初用二有机基二硫代磷酸酯在10℃至100℃的温度下处理，然后用吸附剂，如此纯化的磷酸与酯和吸附剂分离。更具体地说，湿法处理的磷酸在二氧化二硫代磷酸酯的温度高于50℃下处理，吸附剂在低于50℃的温度下处理。

7. 发明授权

US4540558A Process for removing organic contaminants from wet-processed phosphoric acid 失效
标题翻译：从湿法处理的磷酸中除去有机污染物的方法
公开(公告)号：US4540558A
公开(公告)日：1985-09-10
申请号：US627456
申请日：1984-07-03
申请人： Reinhard Gradl , Hans-Werner Stephan , Gero Heymer , Gunther Schimmel
发明人： Reinhard Gradl , Hans-Werner Stephan , Gero Heymer , Gunther Schimmel
IPC分类号： C01B25/235 , C01B25/237
CPC分类号： C01B25/235
摘要： The disclosure relates to a process for removing organic compounds from wet-processed phosphoric acid with the aid of an adsorbant. To this end the disclosure provides for the acid to be heated to at least 250.degree. C. prior to treating it with the adsorbant. The disclosure also relates to an apparatus for carrying out the process.
摘要翻译：本公开涉及借助吸附剂从湿法处理的磷酸中除去有机化合物的方法。为此，本公开提供了在用吸附剂处理之前将其加热至至少250℃的酸。本公开还涉及一种用于执行该过程的装置。

8. 发明授权

US4457848A Process for after-treating extraction residues originating from the decontamination of phosphoric acid 失效
标题翻译：用于后处理来自磷酸去污的提取残留物的方法
公开(公告)号：US4457848A
公开(公告)日：1984-07-03
申请号：US412142
申请日：1982-08-27
申请人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
发明人： Gunther Schimmel , Reinhard Gradl , Gero Heymer
IPC分类号： C01B25/32 , C01B25/234 , C01B25/46 , C01F11/46 , C02F1/52 , C02F1/66 , C01B25/26
CPC分类号： C02F1/66 , C01B25/461 , C02F1/5236 , Y10S210/906
摘要： The disclosure relates to a process for after-treating extraction residues, termed raffinates, originating from the extractive decontamination of crude phosphoric acid. To this end, the disclosure provides for the raffinates to be converted to two separate solid matter fractions of differant chemical composition by admixing the raffinates with a calcium compound so as to establish a pH-value of 1.2 up to 2.5. Next, the resulting precipitate consisting essentially of gypsum is filtered off as a first solid matter fraction, and washed with water. The resulting filtrate and the wash water are made into a mixture and predetermined proportions of calcium compound are added so as to obtain, after complete reaction, a fully reacted filter cake with a pH-value of 9 up to 12, the resulting suspension being filtered off at a pH-value of 6 to 8. The filter cake consisting essentially of calcium phosphate is separated as the second solid matter fraction, and allowed to react completely.
摘要翻译：本公开涉及用于后处理来自粗磷酸的萃取去污的萃取残余物（称为残油）的方法。为此，本公开内容提供了通过将残液与钙化合物混合而将残液物转化为两种不同化学成分的固体物质组分，以便建立1.2至2.5的pH值。接下来，将所得到的基本上由石膏组成的沉淀物作为第一固体成分进行过滤，并用水洗涤。将所得滤液和洗涤水制成混合物，并加入预定比例的钙化合物，以便在完全反应后获得pH值为9至12的完全反应的滤饼，将所得悬浮液过滤在pH值为6至8的情况下，基本上由磷酸钙组成的滤饼作为第二固体成分分离，并使其完全反应。

9. 发明授权

US4525333A Process for separating gallium and indium from aqueous solutions 失效
标题翻译：从水溶液中分离镓和铟的工艺
公开(公告)号：US4525333A
公开(公告)日：1985-06-25
申请号：US531156
申请日：1983-09-09
申请人： Gunther Schimmel , Gero Heymer , Werner Krause , Werner Pieper
发明人： Gunther Schimmel , Gero Heymer , Werner Krause , Werner Pieper
IPC分类号： C22B58/00 , C01G15/00 , C22B3/38
CPC分类号： C01G15/003 , C22B3/0067 , C22B3/0087 , Y02P10/234
摘要： The disclosure relates to a process for separating gallium and indium from an aqueous solution by subjecting this latter to liquid/liquid extraction with the use of certain classes of organylphosphonic acid esters and separating the resulting liquid phases from one another.
摘要翻译：本公开涉及通过使用后者使用某些种类的有机膦酸酯并将所得液相彼此分离来从水溶液中分离镓和铟的方法。

10. 发明授权

US4678650A Process for making an alkali phosphate solution 失效
标题翻译：碱式磷酸盐溶液的制备方法
公开(公告)号：US4678650A
公开(公告)日：1987-07-07
申请号：US715167
申请日：1985-03-22
申请人： Reinhard Gradl , Gero Heymer
发明人： Reinhard Gradl , Gero Heymer
IPC分类号： C01B25/46 , C01B15/16
CPC分类号： C01B25/46
摘要： An aqueous alkali phosphate solution is made. An organic phase is countercurrently mixed with an aqueous phase, the two phases being used in a volume ratio larger than 1:1 and formed aqueous alkali phosphate solution is separated from the remaining organic phase. The two phases are mixed and reacted in a reaction zone comprised of a mixing and separating zone. The organic phase is continuously dispersed in the aqueous phase. A volume excess of aqueous phase is maintained in the mixing zone and the two phases are used in an overall quantity sufficient to provide a volume ratio of organic to aqueous phase of 4:6 to 2:8.
摘要翻译：制备磷酸碱水溶液。有机相与水相逆流混合，两相以体积比大于1:1使用，形成的碱式磷酸碱水溶液与剩余的有机相分离。将两相混合并在由混合和分离区组成的反应区中反应。有机相连续分散在水相中。在混合区中维持体积过量的水相，并且两相的使用量足以提供4:6至2:8的有机相与水相的体积比。

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