公开(公告)号：US4705529A

公开(公告)日：1987-11-10

申请号：US818719

申请日：1986-01-14

Applicant: Gunther Schimmel ,  Werner Kowalski ,  Gero Heymer ,  Reinhard Gradl

Inventor： Gunther Schimmel ,  Werner Kowalski ,  Gero Heymer ,  Reinhard Gradl

IPC: C01B25/12

CPC classification number: C01B25/12

Abstract: 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.

Abstract translation: 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

Applicant: Reinhard Gradl ,  Gero Heymer

Inventor： Reinhard Gradl ,  Gero Heymer

IPC: C01B25/46 ,  C01B15/16

CPC classification number: C01B25/46

Abstract: 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.

Abstract translation: 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

Applicant: G/u/ nther Schimmel ,  Reinhard Gradl ,  Gero Heymer

Inventor： G/u/ nther Schimmel ,  Reinhard Gradl ,  Gero Heymer

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

CPC classification number: C01B25/237 ,  C01B25/238 ,  C01B25/308 ,  C01B25/461

Abstract: 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.

Abstract translation: 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

Applicant: Klaus Lehr ,  Gero Heymer

Inventor： Klaus Lehr ,  Gero Heymer

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

CPC classification number: B01D53/56 ,  Y02C20/10

Abstract: 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.

Abstract translation: 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

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

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

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

CPC classification number: C01B25/023

Abstract: 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.

Abstract translation: 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

Applicant: Bernd Lippsmeier ,  Klaus Hestermann ,  Gero Heymer

Inventor： Bernd Lippsmeier ,  Klaus Hestermann ,  Gero Heymer

IPC: B01J31/24 ,  C07F9/50

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

Abstract: 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.

Abstract translation: （羟甲基） - 烷基，环烷基或芳烷基膦的制备：

公开(公告)号：US4596703A

公开(公告)日：1986-06-24

申请号：US557111

申请日：1983-12-01

Applicant: Reinhard Gradi ,  Gero Heymer ,  Gunther Schimmel

Inventor： Reinhard Gradi ,  Gero Heymer ,  Gunther Schimmel

IPC: C01B25/234 ,  C01B25/46 ,  C01B25/16 ,  C01B15/16 ,  C01B25/26

CPC classification number: C01B25/461 ,  C01B25/462

Abstract: The disclosure relates to a process for purifying crude, concentrated wet-processed phosphoric acid. To this end, the disclosure provides:(a) for the organic solvent to be mixed with the starting product in a ratio by volume of more than 4:1 to effect the extraction in a single process step--from the crude wet-processed phosphoric acid--of a quantity of phosphoric acid necessary for 40 to 70 weight % of the P.sub.2 O.sub.5 used to go into the organic phase, and for the resulting aqueous phosphoric acid raffinate to contain at most 28-32 weight % P.sub.2 O.sub.5, and for the organic phosphoric acid solution to be separated from the phosphoric acid raffinate;(b) for the separated organic phosphoric acid solution to be scrubbed with a quantity of scrubbing solution corresponding at most to 5% of the volume of the phosphoric acid solution; for the scrubbing solution to be recycled into stage (a), and for purified phosphoric acid and phosphate salt solution, respectively, to be recovered in known manner from the scrubbed phosphoric acid solution; and(c) for the aqueous phosphoric acid raffinate produced in stage (a), if desired after prior removal of residual solvent therefrom, to be directly utilized or subjected to known purifying treatment.

Abstract translation: 本公开涉及纯化粗浓缩湿法磷酸的方法。 为此，本公开内容提供：（a）使有机溶剂与起始产物以体积比大于4:1的比例混合以在单一工艺步骤中进行萃取，从粗制湿法磷酸 酸为一定量的磷酸，用于进入有机相中的40〜70重量％的P2O5，所得到的磷酸提取液含有最多28-32重量％的P2O5，对于有机磷酸 酸性溶液与磷酸提余液分离; （b）对于待洗涤的分离的有机磷酸溶液，其量为相当于磷酸溶液体积的至多5％的洗涤溶液; 将洗涤溶液再循环到阶段（a）中，分别用纯化的磷酸和磷酸盐溶液从已洗涤的磷酸溶液中以已知方式回收; 和（c）如果需要，在步骤（a）中制备的磷酸残液水溶液中，在预先除去残余溶剂之后，直接使用或进行已知的纯化处理。

公开(公告)号：US4539192A

公开(公告)日：1985-09-03

申请号：US625456

申请日：1984-06-28

Applicant: Gunther Schimmel ,  Reinhard Gradl ,  Gero Heymer

Inventor： Gunther Schimmel ,  Reinhard Gradl ,  Gero Heymer

IPC: C01B25/234 ,  C01B25/237 ,  C01B25/46 ,  C01B25/16

CPC classification number: C01B25/461 ,  C01B25/237

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4460549A

公开(公告)日：1984-07-17

申请号：US229978

申请日：1981-01-30

Applicant: Gunther Schimmel ,  Reinhard Gradl ,  Gero Heymer

Inventor： Gunther Schimmel ,  Reinhard Gradl ,  Gero Heymer

IPC: B01D11/04 ,  C01G43/00 ,  C22B60/02

CPC classification number: C22B60/026 ,  Y02P10/212

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4452768A

公开(公告)日：1984-06-05

申请号：US455252

申请日：1983-01-03

Applicant: Reinhard Gradl ,  Gunther Schimmel ,  Werner Krause ,  Gero Heymer

Inventor： Reinhard Gradl ,  Gunther Schimmel ,  Werner Krause ,  Gero Heymer

IPC: C01B25/238 ,  B01D11/04 ,  C01B25/237 ,  C01B25/46 ,  C01G1/00 ,  C01B25/16 ,  B01D11/00 ,  B03C1/00 ,  C01G17/00

CPC classification number: C01B25/237 ,  C22B3/24 ,  Y02P10/234

Abstract: 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.

Abstract translation: 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。