公开(公告)号：US4134964A

公开(公告)日：1979-01-16

申请号：US815248

申请日：1977-07-13

申请人： Klaus P. Ehlers ,  Gero Heymer

发明人： Klaus P. Ehlers ,  Gero Heymer

IPC分类号： C01B25/237 ,  C01B25/18

CPC分类号： C01B25/237

摘要： Process and apparatus for purifying crude wet-processed phosphoric acid containing free sulphuric acid. To this end, the wet-processed phosphoric acid is treated in a reaction zone, at a temperature of 70.degree. C to 100.degree. C, with a calcium compound and with calcium sulphate seed crystals; the sulphuric acid is precipitated in the form of calcium sulphate semihydrate with the resultant formation of a suspension; a proportion of the suspension, with the calcium sulphate semihydrate seed crystals present therein, is recycled to the reaction zone; the balance of the suspension is treated for separation of purified phosphoric acid from the accompanying precipitate; the precipitate is transformed into an aqueous suspension and the calcium sulphate semihydrate in said suspension is converted into calcium sulphate dihydrate; the aqueous phase of the suspension is separated from the solid matter therein, and the solid matter is water-washed; a proportion of the aqueous phase so separated is recycled together with a proportion of the wash water, for use in suspending and converting calcium sulphate semihydrate to dihydrate; and the balance of the aqueous phase and wash water are combined with the said purified phosphoric acid.

摘要翻译： 用于净化含有游离硫酸的粗制湿法磷酸的方法和装置。 为此，湿法处理的磷酸在反应区中在70℃至100℃的温度下用钙化合物和硫酸钙晶种进行处理; 硫酸盐以硫酸钙半水合物的形式沉淀，形成悬浮液; 其中存在硫酸钙半水合物晶种的一部分悬浮液被再循环到反应区; 处理悬浮液的余量用于从所伴随的沉淀物中分离纯化的磷酸; 将沉淀物转化为水性悬浮液，并将所述悬浮液中的硫酸钙半水合物转化为硫酸钙二水合物; 悬浮液的水相与其中的固体物质分离，固体物质被水洗; 所分离的水相的一部分与一部分洗涤水一起再循环，用于将硫酸钙半水合物悬浮并转化成二水合物; 并将水相和洗涤水的余量与所述纯化的磷酸组合。

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。

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。

公开(公告)号：US4668492A

公开(公告)日：1987-05-26

申请号：US801737

申请日：1985-11-26

申请人： G/u/ nther Schimmel ,  Reinhard Gradl ,  Gero Heymer

发明人： G/u/ nther Schimmel ,  Reinhard Gradl ,  Gero Heymer

IPC分类号： C01B25/237 ,  C01B25/238 ,  C01B25/30 ,  C01B25/46 ,  C01B25/16 ,  C01B25/26

CPC分类号： C01B25/237 ,  C01B25/238 ,  C01B25/308 ,  C01B25/461

摘要： Phosphoric acid solutions are dearsenified by treating them with a sulfide and separating the resulting precipitate from the purified solution. The sulfide is at least one compound of the general formula P.sub.4 S.sub.x in which x stands for a number of 3 to 10.

摘要翻译： 通过用硫化物处理磷酸溶液进行脱砷，并将所得沉淀物与纯化溶液分离。 硫化物是至少一种通式为P4Sx的化合物，其中x代表3至10个数。

公开(公告)号：US4482527A

公开(公告)日：1984-11-13

申请号：US538130

申请日：1983-10-03

申请人： Klaus Lehr ,  Gero Heymer

发明人： Klaus Lehr ,  Gero Heymer

IPC分类号： B01D53/56 ,  C01B21/00 ,  B01J8/00

CPC分类号： B01D53/56 ,  Y02C20/10

摘要： The disclosure relates to a process for removing nitrogen dioxide from off-gas. To this end, the disclosure provides for the off-gas to be intimately contacted with a suspension consisting of red phosphorus and a liquid being inert with respect to red phosphorus, e.g. water.

摘要翻译： 本公开涉及从废气中除去二氧化氮的方法。 为此，本公开内容提供废气与由红磷和相对于红磷惰性的液体组成的悬浮液紧密接触。 水。

公开(公告)号：US4273752A

公开(公告)日：1981-06-16

申请号：US123106

申请日：1980-02-20

申请人： Klaus Lehr ,  Gero Heymer ,  Hans-Werner Stephan ,  Ursus Thummler

发明人： Klaus Lehr ,  Gero Heymer ,  Hans-Werner Stephan ,  Ursus Thummler

IPC分类号： B01J8/10 ,  B01J19/28 ,  B02C17/00 ,  C01B25/02 ,  C01B25/023 ,  C01B25/01 ,  C01B25/04

CPC分类号： C01B25/023

摘要： The invention relates to a process for making red phosphorus by subjecting molten yellow phosphorus to a thermal conversion reaction in a closed reaction zone. To this end, a hollow shaft-provided and closed ball mill is preheated to a reaction temperature within the range 280.degree. to 590.degree. C. Yellow phosphorus is continuously introduced into the ball mill through the hollow shaft in quantities per unit time which permit the reaction temperature prevailing inside the ball mill to be maintained without supply of heat from the outside. More particularly, decreasing quantities of yellow phosphorus are introduced per unit time at increasing temperature and increasing quantities of yellow phosphorus are introduced per unit time at decreasing temperature within the limits specified. Red phosphorus is allowed to cool inside the ball mill, water is poured over it and the whole is subjected to wet-grinding. An aqueous suspension of red phosphorus is finally removed from the ball mill.

摘要翻译： 本发明涉及通过使熔融黄磷在封闭反应区中进行热转化反应来制备红磷的方法。 为此，空心轴提供和封闭的球磨机被预热到280℃至590℃的反应温度。黄磷通过空心轴以每单位时间的量连续地引入球磨机，这允许 球磨机内部的反应温度保持不受外界的热量的限制。 更特别地，在增加的温度下每单位时间引入黄磷的减少量，并且在规定的限度内在降低的温度下每单位时间引入增加量的黄磷。 使红磷在球磨机内冷却，将水倒在其上，整体进行湿磨。 最终从球磨机中除去红磷水悬浮液。

公开(公告)号：US4080384A

公开(公告)日：1978-03-21

申请号：US559529

申请日：1975-03-18

申请人： Bernd Lippsmeier ,  Klaus Hestermann ,  Gero Heymer

发明人： Bernd Lippsmeier ,  Klaus Hestermann ,  Gero Heymer

IPC分类号： B01J31/24 ,  C07F9/50

CPC分类号： B01J31/0268 ,  B01J31/0258 ,  B01J31/0259 ,  B01J31/1845 ,  B01J31/24 ,  C07F9/5004 ,  B01J2231/4277 ,  B01J2531/822 ,  B01J2531/828 ,  B01J2531/847 ,  B01J27/10 ,  B01J27/128

摘要： Production of (hydroxymethyl)-alkyl, cycloalkyl or aralkylphosphines of the general formula:R.sub.n P(CH.sub.2 OH).sub.3-nin which n stands for 1 or 2 and R stands for identical or different, substituted or unsubstituted alkyl, cycloalkyl or aralkyl radicals having from 1 to 18 carbon atoms. The compounds are made by reacting suitable mono- or di-alkyl, cycloalkyl or aralkylphosphines at atmospheric pressure and at temperatures lower than 40.degree. C with formaldehyde, paraformaldehyde or trioxane in the presence of polar organic solvents being inert with respect to the resulting reaction product, and separating the solvent from the reaction product.

摘要翻译： （羟甲基） - 烷基，环烷基或芳烷基膦的制备：

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。

公开(公告)号：US4418043A

公开(公告)日：1983-11-29

申请号：US288667

申请日：1981-07-30

申请人： Klaus Lehr ,  Gero Heymer

发明人： Klaus Lehr ,  Gero Heymer

IPC分类号： C22B43/00 ,  C01G1/00 ,  C01G3/00 ,  C01G5/00 ,  C01G13/00 ,  C01G55/00 ,  C02F1/28 ,  C22B11/00 ,  C22B15/00 ,  C01G7/00

CPC分类号： C02F1/288 ,  C02F1/281 ,  C22B11/04 ,  C22B3/24 ,  Y02P10/234 ,  Y10S210/912

摘要： The invention relates to a process for separating seminoble metals or noble metals from aqueous solutions having compounds of these metals dissolved therein, by reaction with yellow phosphorus. More particularly the aqueous solutions are contacted with carrier material having a yellow phosphorus coating applied thereto.It is possible for the aqueous solutions to be conveyed through a zone having the yellow phosphorus-coated carrier material placed therein, and for them to be subsequently conveyed through a further zone having uncoated carrier material placed therein.

摘要翻译： 本发明涉及通过与黄磷反应从其中溶解有这些金属的化合物的水溶液中分离出含半金属或贵金属的方法。 更具体地，水溶液与其上施加有黄磷涂层的载体材料接触。 水溶液可以通过其中放置有黄磷涂层的载体材料的区域输送，并且随后将其输送通过其中放置有未涂覆的载体材料的另一区域。

公开(公告)号：US4396586A

公开(公告)日：1983-08-02

申请号：US309902

申请日：1981-10-09

申请人： Alexander Maurer ,  Jurgen Stenzel ,  Gero Heymer

发明人： Alexander Maurer ,  Jurgen Stenzel ,  Gero Heymer

IPC分类号： C09K21/02 ,  C01B25/40 ,  C09K21/12 ,  C01B25/28

CPC分类号： C01B25/405

摘要： The invention relates to a process for making long chain ammonium polyphosphate consisting essentially of crystalline modification II. To this end, a mixture of phosphorus pentoxide and ammonium orthophosphate in a molar ratio of 1:0.9 to 1:1.1 is reacted with 0.1 to 15 mol % of melamine or its condensation products selected from melam, melem or mellon, calculated as melamine, at a temperature within the range 50.degree. to 150.degree. C. in the presence of an excess of ammonia and the reaction product is heat-treated at temperatures within the range 200.degree. to 400.degree. C.

摘要翻译： 本发明涉及一种制备基本上由结晶改性II组成的长链多磷酸铵的方法。 为此，以摩尔比1:0.9至1:1.1的五氧化二磷和正磷酸铵的混合物与0.1至15mol％的三聚氰胺或其选自蜜胺，蜜胺或梅隆的缩合产物以三聚氰胺计算， 在过量氨的存在下，在50〜150℃的温度范围内，将反应产物在200〜400℃的温度范围内进行热处理。