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41. 发明授权

US5158752A Plant for producing ammonium polyphosphate 失效
标题翻译：生产聚磷酸铵的工厂
公开(公告)号：US5158752A
公开(公告)日：1992-10-27
申请号：US657532
申请日：1991-02-19
申请人： Thomas Staffel , Gunther Schimmel , Horst Buhl , Jurgen Grosse
发明人： Thomas Staffel , Gunther Schimmel , Horst Buhl , Jurgen Grosse
IPC分类号： C01B15/16 , C01B25/40 , C05B13/06
CPC分类号： C01B25/405 , C05B13/06
摘要： A plant for producing chain-type ammonium polyphosphate from ammonium orthophosphate and phosphorus pentoxide in the presence of gaseous ammonia comprises a reactor having rotatable mixing, kneading and comminuting tools in its interior and a feed pipe for the solid starting materials, an introduction pipe for ammonia, a gas discharge pipe and a discharge line for the reaction product, all of which are flow-connected to the interior of the reactor. The discharge line of the reactor is also connected for material flow to a mixing apparatus. A discharge device, which is controlled by the power consumption of the drive motor of the reactor, is arranged in the discharge line.
摘要翻译：一种在气态氨存在下由正磷酸铵和五氧化磷生产链式多磷酸铵的设备包括一个在其内部具有可旋转的混合，捏合和粉碎工具的反应器，以及用于固体原料的进料管，用于氨的引入管，气体排出管和反应产物的排出管线，所有这些都与反应器的内部流通。反应器的排出管线也连接用于物料流到混合装置。排出装置，其由反应堆的驱动电动机的功率消耗来控制，排放在排出管线中。

42. 发明授权

US4904459A Process for working up dusts which are produced in the electrothermal production of phosphorus 失效
标题翻译：处理在电热生产中产生的粉尘的工艺
公开(公告)号：US4904459A
公开(公告)日：1990-02-27
申请号：US385492
申请日：1989-07-26
申请人： Friedrich Kolkmann , Gunther Schimmel , Johannes Scheffer
发明人： Friedrich Kolkmann , Gunther Schimmel , Johannes Scheffer
IPC分类号： C01B25/027 , C01B25/30 , C01B25/41
CPC分类号： C01B25/416 , C01B25/027 , C01B25/30
摘要： A process is provided for working up dusts which have been precipitated electrostatically from the gas mixture composed essentially of carbon monoxide and phosphorus vapor produced in the electrothermal production of yellow phosphorus, which process comprises converting the dusts into a calcinate at 300.degree. to 800.degree. C. under oxidizing conditions in a first step, leaching the calcinate with phosphoric acid in a second step, adjusting the pH of the solution in phosphoric acid to 0 to 1.5 with sodium hydroxide solution in a third step, precipitating the sulfides of lead, copper and cadmium from the partially neutralized solution in phosphoric acid by adding sulfide and filtering them off in a fourth step, adjusting the pH of the filtered, partially neutralized solution in phosphoric acid to about 1.5 to 5.0 with sodium hydroxide solution and precipitating zinc sulfide, if necessary by adding further quantities of sulfide, and filtering it off in a fifth step, further neutralizing the sodium phosphate solution, if necessary after expelling excess sulfide, with sodium hydroxide solution and separating it from precipitated calcium compounds in a sixth step, and using the resultant sodium phosphate solution in this form in a known manner to produce sodium phosphate salts.
摘要翻译：提供了一种处理从黄磷的电热生产中产生的基本上由一氧化碳和磷蒸气组成的气体混合物静电析出的灰尘的方法，该方法包括在300-800℃下将粉尘转化成煅烧物在第一步骤的氧化条件下，在第二步中用磷酸浸出煅烧物，在第三步中用氢氧化钠溶液将磷酸溶液的pH调节至0至1.5，使铅，铜和通过添加硫化物并在第四步骤中将其从磷酸中的部分中和的溶液中的镉，在氢氧化钠溶液中将过滤的，部分中和的磷酸溶液的pH调节至约1.5至5.0，如果需要，沉淀硫化锌通过添加更多量的硫化物，并在第五步骤中过滤，进一步中和磷酸二氢钠溶液，如果需要，用氢氧化钠溶液排出过量的硫化物，并在第六步骤中将其与沉淀的钙化合物分离，并以已知的方式使用所得的这种形式的磷酸钠溶液来生产磷酸钠盐。

43. 发明授权

US4780294A Process for making crude phosphoric acid 失效
标题翻译：制备粗磷酸的方法
公开(公告)号：US4780294A
公开(公告)日：1988-10-25
申请号：US10333
申请日：1987-02-03
申请人： Gunther Schimmel , Friedrich Kolkmann , Reinhard Gradl , Herbert Ressel
发明人： Gunther Schimmel , Friedrich Kolkmann , Reinhard Gradl , Herbert Ressel
IPC分类号： C01B25/222 , C01B25/22 , C01B25/223 , C01B25/16 , C01B17/16
CPC分类号： C01B25/2208 , C01B25/223
摘要： Crude phosphoric acid is made by subjecting crude phosphate ore containing sulfide to processing treatment with a mineral acid in a closed system comprised of a processing reactor, a filtering zone and an off-gas scrubbing zone. To this end, a soluble compound of a metal forming difficultly soluble sulfides in the respective acid medium is added either(A) during the processing operation the phosphate ore is subjected to or(B) during the scrubbing operation the off-gas is subjected toand the resulting sulfide precipitate is filtered off in case (A) together with further matter precipitated during the processing operation and, in case (B) separated from the scrubbing liquid.
摘要翻译：粗磷酸是通过在含有加工反应器，过滤区和废气洗涤区的封闭系统中，使含有硫化物的粗磷酸盐矿石与无机酸进行处理而制成的。为此，在各种酸性介质中形成难以溶解的硫化物的金属的可溶性化合物在（a）在磷酸盐矿石经历的处理操作期间或（B）中加入废气进行处理并且在（A）的情况下将所得的硫化物沉淀与在处理操作期间沉淀的另外的物质一起被滤出，并且在与洗涤液分离的情况下（B）。

44. 发明授权

US4774005A Process for working-up an aqueous silicohydrofluoric acid solution 失效
标题翻译：处理水性硅酸氢氟酸溶液的方法
公开(公告)号：US4774005A
公开(公告)日：1988-09-27
申请号：US76340
申请日：1987-07-22
申请人： Gunther Schimmel
发明人： Gunther Schimmel
IPC分类号： C02F1/52 , C02F1/58 , C02F1/66 , B01D21/01
CPC分类号： C02F1/5236 , C02F1/583 , C02F1/66
摘要： An aqueous solution of hexafluorosilicic acid containing 2 to 15 wgt % H.sub.2 SiF.sub.6 is worked up. To this end, the solution is admixed with particulate CaCO.sub.3 or Ca(OH).sub.2 consisting to an extent of at least 70% of particles having a size of more than 8 .mu.m, but to an extent of at most 15% of particles having a size of more than 2 mm, or with CaCO.sub.3 in admixture with CaO or Ca(OH).sub.2. The calcium compound is used in a quantity sufficient to establish a molar ratio of Ca.sup.2+ /SiF.sub.6.sup.2- of 2.8 to 3.5, and the reaction is effected at a temperature higher than 50.degree. C. After a period of 0.6 to 2.5 hours, the reaction product is filtered.
摘要翻译：含有2〜15重量％H 2 SiF 6的六氟硅酸水溶液被处理。为此，将溶液与颗粒状CaCO 3或Ca（OH）2混合，所述CaCO 3或Ca（OH）2与至少70％尺寸大于8μm的颗粒的程度组成，但至多具有至多15％尺寸大于2mm，或与CaO或Ca（OH）2混合的CaCO 3。钙化合物的使用量足以使Ca2 + / SiF62-的摩尔比为2.8〜3.5，反应在高于50℃的温度下进行。在0.6〜2.5小时后，反应产物被过滤。

45. 发明授权

US4713229A Process for purifying phosphoric acid 失效
标题翻译：磷酸纯化方法
公开(公告)号：US4713229A
公开(公告)日：1987-12-15
申请号：US774084
申请日：1985-09-09
申请人： Gunther Schimmel , Reinhard Gradl
发明人： Gunther Schimmel , Reinhard Gradl
IPC分类号： C01B25/234 , C01B25/237 , C01B25/238 , C01B25/46 , C01G3/00 , C01G11/00 , C01G13/00 , C01G21/00 , C01G28/00 , C01B25/14 , C01B25/16
CPC分类号： C01G13/003 , C01B25/237 , C01G11/003 , C01G21/003 , C01G28/001 , C01G3/003 , C22B3/24 , Y02P10/234
摘要： Wet process phosphoric acid is freed from heavy metal ions, especially from ions of cadmium, copper, mercury, lead and arsenic and optionally also from organic compounds and sulfuric acid. To this end, the phosphoric acid is contacted with a diorganyldithiophosphoric acid ester and an adsorbent, if desired. Prior to or after said treatment with the ester, the phosphoric acid is admixed with a reductant. The adsorbent, if any is used alone or in combination with an alkaline earth metal compound soluble in phosphoric acid.
摘要翻译：湿法磷酸从重金属离子中脱除，特别是从镉，铜，汞，铅和砷的离子中释放出来，任选地也可以是有机化合物和硫酸。为此，如果需要，磷酸与二有机二硫代磷酸酯和吸附剂接触。在用酯处理之前或之后，将磷酸与还原剂混合。吸附剂（如果有的话）单独使用或与可溶于磷酸的碱土金属化合物组合使用。

46. 发明授权

US4683127A Process for making wet-process phosphoric acid 失效
标题翻译：制造湿法磷酸的方法
公开(公告)号：US4683127A
公开(公告)日：1987-07-28
申请号：US826289
申请日：1986-02-05
申请人： Friedrich Kolkmann , Herbert Ressel , Reinhard Gradl , Gunther Schimmel
发明人： Friedrich Kolkmann , Herbert Ressel , Reinhard Gradl , Gunther Schimmel
IPC分类号： C01B25/22 , C01B25/225 , C01B25/226 , C01B25/16
CPC分类号： C01B25/2208 , C01B25/225 , C01B25/226
摘要： Wet-process phosphoric acid is made by subjecting a phosphate ore to processing treatment with a mineral acid resulting in the formation of a processed suspension. The formation of silicofluorides is obviated by adding, either to the phosphate ore or the processed suspension, a quantity of an aluminum compound soluble in phosphoric acid sufficent for the processed suspension to present an aluminum concentration of 0.3 to 1.0 wgt %, based on P.sub.2 O.sub.5.
摘要翻译：湿法磷酸是通过使磷酸盐矿石与无机酸进行处理而形成加工后的悬浮液而制得的。通过向磷酸盐矿石或经处理的悬浮液中加入一定量的可溶于磷酸的铝化合物足以使经处理的悬浮液以基于P 2 O 5的浓度为0.3至1.0重量％的浓度来添加氟化硅的形成。

47. 发明授权

US4540557A Process for reducing the fluorine content in wet-processed phosphoric acid 失效
标题翻译：降低湿法磷酸中氟含量的方法
公开(公告)号：US4540557A
公开(公告)日：1985-09-10
申请号：US633142
申请日：1984-07-23
申请人： Reinhard Gradl , Gunther Schimmel
发明人： Reinhard Gradl , Gunther Schimmel
IPC分类号： C01B25/46 , C01B25/16 , C01B15/16 , C01B25/26
CPC分类号： C01B25/461 , C01B25/462
摘要： The disclosure relates to a process for reducing the fluorine content in wet-processed phosphoric acid. To this end, the disclosure provides for an acid extract in an organic solvent to be treated with an at least 45 weight % suspension of aluminum hydroxide of which 99% consist of particles with a size of less than 1 .mu.m, the balance consisting of particles with a size of less than 10 .mu.m.
摘要翻译：本公开涉及一种降低湿法磷酸中氟含量的方法。为此，本公开内容提供了用至少45重量％的氢氧化铝悬浮液处理的有机溶剂中的酸提取物，其中99％由尺寸小于1μm的颗粒组成，其余由尺寸小于10微米的颗粒。

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