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1. 发明授权

US4355010A Process for removing phosphorus in vapor form and phosphanes from gas mixtures 失效
标题翻译：从气体混合物中除去蒸汽形式的磷和磷烷的方法
公开(公告)号：US4355010A
公开(公告)日：1982-10-19
申请号：US201761
申请日：1980-10-29
申请人： Klaus Jodden , Friedrich-Wilhelm Dorn , Gero Heymer , Hans-Werner Stephan
发明人： Klaus Jodden , Friedrich-Wilhelm Dorn , Gero Heymer , Hans-Werner Stephan
IPC分类号： B01D53/46 , C01B25/027 , B01D53/34 , C01B25/12
CPC分类号： B01D53/46 , C01B25/027
摘要： Phosphorus in vapor form and phosphanes are separated from gas mixtures which consist of carbon monoxide, with or without hydrogen, nitrogen and steam. Concerned are more particularly the off-gases of phosphorus-producing furnaces. To this end, the gas mixture is admixed with at least the stoichiometric amount of oxygen and/or of oxygen-containing gases necessary to achieve conversion of the total phosphorus contained in the gas mixture to oxidation level V. The resulting mixture is introduced into a reaction zone maintained at a temperature within the range 200.degree. to 700.degree. C. and allowed to remain therein over a period of 0.5 to 20 seconds. Resulting phosphorus-V compounds are finally separated from the gas mixture.
摘要翻译：蒸气形式的磷和磷烷与由一氧化碳，有或没有氢气，氮气和蒸汽组成的气体混合物分离。更关心的是生产磷的炉的废气。为此，将气体混合物与至少化学计量的氧和/或含氧气体混合，以使气体混合物中所含的总磷转化为氧化水平V.将所得混合物引入到反应区保持在200℃至700℃的温度范围内，并允许其在0.5至20秒的时间内保留。最终从气体混合物中分离所得的磷-V化合物。

2. 发明授权

US4385041A Process for making aqueous alkali metal phosphate solutions 失效
标题翻译：制备碱金属磷酸盐水溶液的方法
公开(公告)号：US4385041A
公开(公告)日：1983-05-24
申请号：US326078
申请日：1981-11-30
申请人： Klaus Jodden , Gero Heymer
发明人： Klaus Jodden , Gero Heymer
IPC分类号： C01B25/30 , C01B15/16 , C01B25/26
CPC分类号： C01B25/30
摘要： The invention relates to a process for making aqueous alkali metal phosphate solutions by subjecting aqueous alkali metal phosphite solutions to catalytic oxidation with oxygen or air. More particularly, oxygen or air in stoichiometric excess proportions is introduced into the aqueous alkali metal phosphite solution at about 30.degree. to 110.degree. C., at a pH-value of 0 to about 8, and in the presence of SiO.sub.2 or aluminum silicate containing at most 10 weight % Al.sub.2 O.sub.3, for as long as necessary to achieve conversion of the alkali metal phosphite to alkai metal phosphate. After completion of the oxidation, the aqueous solution is separated from the catalyst.
摘要翻译：本发明涉及通过使碱金属亚磷酸盐水溶液用氧气或空气进行催化氧化来制备碱金属磷酸盐水溶液的方法。更具体地说，在约30℃至110℃，pH值为0至约8的条件下，在含碱金属亚磷酸盐水溶液中的化学计量过量的氧气或空气中，在含有至多10重量％的Al 2 O 3，只要需要实现碱金属亚磷酸盐转化为磷酸金属。氧化完成后，将水溶液与催化剂分离。

3. 发明授权

US4517163A Process for making titanium dioxide concentrates 失效
标题翻译：制备二氧化钛浓缩物的方法
公开(公告)号：US4517163A
公开(公告)日：1985-05-14
申请号：US469220
申请日：1983-02-24
申请人： Klaus Jodden , Gero Heymer , Hans-Werner Stephan
发明人： Klaus Jodden , Gero Heymer , Hans-Werner Stephan
IPC分类号： C22B34/12 , C01G23/07 , C01G23/08
CPC分类号： C22B34/1209
摘要： The disclosure relates to a process for making titanium dioxide concentrates from material containing titanium oxide and iron oxides. More particularly, the titanium oxide-containing material is calcined at temperatures of 870.degree. to 1300.degree. C., and then treated with a chlorine-containing gas at temperatures of 800.degree. to 1300.degree. C., if desired with addition of carbon.
摘要翻译：本公开涉及由含有氧化钛和氧化铁的材料制备二氧化钛浓缩物的方法。更具体地说，含氧化钛的材料在870℃至1300℃的温度下煅烧，然后如果需要，加入碳，然后在含有800℃至1300℃的温度下用含氯气体处理。

4. 发明授权

US4278647A Production of phosphorous acid 失效
标题翻译：生产亚磷酸
公开(公告)号：US4278647A
公开(公告)日：1981-07-14
申请号：US60659
申请日：1979-07-25
申请人： Klaus Jodden , Hans-Werner Stephan , Gero Heymer
发明人： Klaus Jodden , Hans-Werner Stephan , Gero Heymer
IPC分类号： C01B25/163 , C01B25/16 , C01B25/26
CPC分类号： C01B25/163
摘要： The invention relates to a process for making aqueous phosphorous acid solutions by admixing an aqueous sodium phosphite solution with hydrochloric acid. More specifically, phosphorous acid solutions substantially free from sodium in hydrochloric acid are produced by introducing hydrogen chloride, into the sodium phosphite solution until the latter is saturated therewith and separating precipitating sodium chloride from the resulting phosphorous acid solution in hydrochloric acid.
摘要翻译：本发明涉及通过将亚磷酸钠水溶液与盐酸混合来制备亚磷酸水溶液的方法。更具体地说，在盐酸中基本上不含钠的亚磷酸溶液通过将氯化氢引入到亚磷酸钠溶液中而产生，直至后者被饱和，并从所得的亚磷酸溶液中在盐酸中分离沉淀的氯化钠。

5. 发明授权

US4889702A Process for removing metallic constituents from dust obtained during the electrothermal production of yellow phosphorus 失效
标题翻译：在黄磷电热生产过程中除去金属成分的方法
公开(公告)号：US4889702A
公开(公告)日：1989-12-26
申请号：US277567
申请日：1988-11-29
申请人： Friedrich Kolkmann , Klaus Jodden
发明人： Friedrich Kolkmann , Klaus Jodden
IPC分类号： C01B25/027
CPC分类号： C01B25/027
摘要： Metallic constituents, especially heavy metal constituents are removed from dust electrostatically separated from a gas mixture consisting substantially of carbon monoxide and phosphorus in vapor form obtained during the electrothermal production of yellow phosphorus. To this end, the dust is initially calcined with continuous agitation under oxidizing conditions at temperatures of 300.degree. to 800.degree. C.; next, the resulting calcined matter is mixed with carbon and the mixture is treated at temperatures of 950.degree. to 1200.degree. C. under reducing conditions with volatilization of the metallic constituents; and the volatized metallic constituents are ultimately condensed and separated.
摘要翻译：将金属成分，特别是重金属成分从黄磷的电热生产过程中获得的蒸汽形式基本上由基本上由一氧化碳和磷组成的气体混合物静电分离的粉尘中除去。为此，灰尘最初在氧化条件下在300-800℃的温度下连续搅拌煅烧。接下来，将所得的煅烧物质与碳混合，并在还原条件下在950℃至1200℃的温度下处理该混合物，同时挥发金属成分; 并且挥发的金属成分最终被冷凝和分离。

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