公开(公告)号：US4239922A

公开(公告)日：1980-12-16

申请号：US48074

申请日：1979-06-13

申请人： Theodor Riehm ,  Theodor Auel ,  Wilhelm Spatz

发明人： Theodor Riehm ,  Theodor Auel ,  Wilhelm Spatz

IPC分类号： C07C29/132 ,  C07C27/00 ,  C07C29/141 ,  C07C29/88 ,  C07C31/18 ,  C07C67/00 ,  C13K13/00

CPC分类号： C13K13/002 ,  C07C29/88 ,  C07C31/18 ,  C07B2200/07

摘要： A process for producing polyalcohols such as xylite from deciduous wood wherein the wood is hydrolyzed with dilute mineral acid to produce a sugar solution which is deionized and decolorized in an ion exchanger and hydrogenated to produce a polyalcohol solution which is also decolorized and deionized by ion exchange and from which pure polyalcohol is thereafter separated by crystallization, further comprising dispensing with neutralization of the acid in the sugar solution after hydrolysis, deionizing and decolorizing both the sugar solution and the polyalcohol solution in the same ion exchanger, eluting acetic acid taken up by the ion exchanger from the polyalcohol solution and displacing polyalcohol solution from the exchanger with the acid containing sugar solution, washing the ion exchanger with water only after ion exchange of the sugar solution, removing the bulk of the acetic acid from the sugar solution by evaporating the sugar solution to a higher concentration than the concentration customarily utilized for hydrogenation, and rediluting the sugar solution prior to hydrogenation with the exchanger wash water.

摘要翻译： 从落叶木材生产多元醇如木yl石的方法，其中木材用稀无机酸水解，以产生在离子交换剂中去离子并脱色的糖溶液，并氢化生成也通过离子交换脱色和去离子的多元醇溶液 然后通过结晶从中分离纯多元醇，还包括在同一离子交换剂中水解，去离子和脱色糖溶液和多元醇溶液之后，在糖溶液中分配酸中和，洗脱出乙酸 离子交换剂，并用含酸的糖溶液从交换器置换多元醇溶液，仅在离子交换糖溶液后才用水洗涤离子交换剂，通过蒸发糖从糖溶液中除去大部分乙酸 溶液浓度比浓度高 通常用于氢化和在用交换器洗涤水氢化之前将糖溶液重新稀释。

公开(公告)号：US4780293A

公开(公告)日：1988-10-25

申请号：US936380

申请日：1986-12-01

申请人： Stephan Kleemann ,  Alexander Maurer ,  Albert Erasmus ,  Wilhelm Spatz

发明人： Stephan Kleemann ,  Alexander Maurer ,  Albert Erasmus ,  Wilhelm Spatz

IPC分类号： C01B25/39 ,  C01B25/445 ,  C01B15/16 ,  C01B25/26

CPC分类号： C01B25/445

摘要： The invention provides a process for the production of Maddrell's salt, wherein solid sodium dihydrogen phosphate and/or disodium dihydrogen pyrophosphate, containing catalytic amounts of an acid or of an acid-generating compound statistically distributed therein, is brought to condensation at an elevated temperature.

摘要翻译： 本发明提供了一种生产马德雷尔盐的方法，其中含有催化量的酸或其产生酸的化合物在其中统计分布的固体磷酸二氢钠和/或二氢焦磷酸二氢钠在升高的温度下冷凝。

公开(公告)号：US4343779A

公开(公告)日：1982-08-10

申请号：US239975

申请日：1981-03-03

申请人： Klaus Sommer ,  Walter Klemm ,  Hermann Weber ,  Frederich Meinhardt ,  Gerhard Schonmann ,  Wilhelm Spatz

发明人： Klaus Sommer ,  Walter Klemm ,  Hermann Weber ,  Frederich Meinhardt ,  Gerhard Schonmann ,  Wilhelm Spatz

IPC分类号： B01J10/00 ,  B01J19/18 ,  C01B25/38 ,  C01B25/40 ,  C01B15/16

CPC分类号： C01B25/38 ,  B01J10/005 ,  B01J19/1887 ,  C01B25/40 ,  B01J2219/182

摘要： A process and apparatus for condensing solid materials such as phosphates which tend to sinter and adhere when heated in a reactor wherein the reactants are introduced into a trough-like reactor provided with at least one set of rotatable agitating paddles. Heat is supplied to the reactor by passing a heating medium, such as a molten salt or a molten metal, through one or more heating jackets on the exterior of the reactor housing. The agitating paddles press the solid material in a thin layer against the wall of the reactor housing, and the material in the layer absorbs heat from the heating medium and sinters to a hard layer. One paddle of each set of paddles is provided with a stripping knife which moves along a path closely adjacent to the exterior wall of the reaction chamber to strip sintered material from the wall of the reactor housing. Heat is also transferred to the interior of the reactor housing by circulating the peeled material through the interior region of the reactor housing.

摘要翻译： 用于冷凝诸如磷酸盐的固体材料的方法和装置，其在反应器中加热时倾向于烧结和粘附，其中反应物被引入设置有至少一组可旋转搅拌桨的槽形反应器中。 通过使诸如熔融盐或熔融金属之类的加热介质通过反应器壳体外部的一个或多个加热夹套将热量供应到反应器。 搅拌桨将薄层上的固体材料压在反应器壳体的壁上，层中的材料吸收来自加热介质的热量并烧结成硬质层。 每组桨叶中的一个叶片设置有剥离刀，其沿着紧邻反应室的外壁的路径移动，以从反应器壳体的壁上剥离烧结材料。 通过将剥离的材料循环通过反应器壳体的内部区域，热也被转移到反应器壳体的内部。

公开(公告)号：US4293526A

公开(公告)日：1981-10-06

申请号：US123754

申请日：1980-02-22

申请人： Klaus Sommer ,  Walter Klemm ,  Hermann Weber ,  Frederich Meinhardt ,  Gerhard Schonmann ,  Wilhelm Spatz

发明人： Klaus Sommer ,  Walter Klemm ,  Hermann Weber ,  Frederich Meinhardt ,  Gerhard Schonmann ,  Wilhelm Spatz

IPC分类号： B01J10/00 ,  B01J19/18 ,  C01B25/38 ,  C01B25/40 ,  F28D21/00

CPC分类号： C01B25/38 ,  B01J10/005 ,  B01J19/1887 ,  C01B25/40 ,  B01J2219/182

摘要： A process and apparatus for condensing solid materials such as phosphates which tend to sinter and adhere when heated in a reactor wherein the reactants are introduced into a trough-like reactor provided with at least one set of rotatable agitating paddles. Heat is supplied to the reactor by passing a heating medium, such as a molten salt or a molten metal, through one or more heating jackets on the exterior of the reactor housing. The agitating paddles press the solid material in a thin layer against the wall of the reactor housing, and the material in the layer absorbs heat from the heating medium and sinters to a hard layer. One paddle of each set of paddles is provided with a stripping knife which moves along a path closely adjacent to the exterior wall of the reaction chamber to strip sintered material from the wall of the reactor housing. Heat is also transferred to the interior of the reactor housing by circulating the peeled material through the interior region of the reactor housing.

摘要翻译： 用于冷凝诸如磷酸盐的固体材料的方法和装置，其在反应器中加热时倾向于烧结和粘附，其中反应物被引入设置有至少一组可旋转搅拌桨的槽形反应器中。 通过使诸如熔融盐或熔融金属之类的加热介质通过反应器壳体外部的一个或多个加热夹套将热量供应到反应器。 搅拌桨将薄层上的固体材料压在反应器壳体的壁上，层中的材料吸收来自加热介质的热量并烧结成硬质层。 每组桨叶中的一个叶片设置有剥离刀，其沿着紧邻反应室的外壁的路径移动，以从反应器壳体的壁上剥离烧结材料。 通过将剥离的材料循环通过反应器壳体的内部区域，热也被转移到反应器壳体的内部。