公开(公告)号：US5153355A

公开(公告)日：1992-10-06

申请号：US748268

申请日：1991-08-21

申请人： Hilmar Mildenberger ,  Harald Knorr ,  Arno Schulz ,  Heribert Tetzlaff

发明人： Hilmar Mildenberger ,  Harald Knorr ,  Arno Schulz ,  Heribert Tetzlaff

IPC分类号： C07C227/40 ,  C07C229/24 ,  C07F9/30 ,  C07F9/50

CPC分类号： C07C227/40 ,  C07F9/301

摘要： A large number of customary processes for separating amino acids fails when very polar hydrophilic amino acids with isoelectric points (IEP) which are close to one another are to be fractionated. Mixtures of L-glutamic acid (IEP=3.24) and L-phosphinothricin (IEP=2.6) produced by enzymatic transaminations of the corresponding .alpha.-keto acid have been difficult to separate to date. The invention relates to a process for separating L-phosphinothricin and L-glutamic acid, which comprises carrying out the separation as liquid/liquid extraction with two non-miscible aqueous phases as phase system, where the phase former contained in the phase system is a combination of at least two different water-soluble polymers or of at least one water-soluble salt and one water-soluble polymer, and the extraction is carried out by multistage countercurrent partition on the van Dijck principle.

摘要翻译： 大量的分离氨基酸的常规方法会在具有彼此接近的等电点（IEP）的极性极性亲水性氨基酸分馏时失效。 通过相应的α-酮酸的酶转运产生的L-谷氨酸（IEP = 3.24）和L-膦丝菌素（IEP = 2.6）的混合物迄今难以分离。 本发明涉及一种分离L-膦丝菌素和L-谷氨酸的方法，包括以两相不相溶的水相作为相系统进行液/液萃取分离，其中相系统中所含的相变原子是 至少两种不同的水溶性聚合物或至少一种水溶性盐和一种水溶性聚合物的组合，并且采用van Dijck原理通过多级逆流分配进行萃取。

公开(公告)号：US5013444A

公开(公告)日：1991-05-07

申请号：US576934

申请日：1990-08-29

申请人： Hilmar Mildenberger ,  Stephen Lachhein ,  Siegbert Rittner ,  Heribert Tetzlaff

发明人： Hilmar Mildenberger ,  Stephen Lachhein ,  Siegbert Rittner ,  Heribert Tetzlaff

IPC分类号： C07C29/86 ,  C07C31/02 ,  C07C31/04 ,  C07C41/38 ,  C07C43/15

CPC分类号： C07C41/38

摘要： The invention relates to a gentle process for the separation of enol ethers from mixtures containing water-soluble alcohols by extraction, wherein an aqueous solution of a base is used as the extraction agent in a phase ratio of the amounts of the aqueous phase: enol ether/alcohol mixture of at least 0.5:1 and the extraction is carried out in several stages or continuously with a theoretical number of stages of at least two. The process is particularly suitable for separating off enol ethers which readily decompose during distillation.

摘要翻译： 本发明涉及一种用于通过萃取从烯醇醚与含有水溶性醇的混合物中分离出温和的方法，其中将碱的水溶液用作提取剂，其水相量为：烯醇醚 /醇混合物至少为0.5：1，萃取过程分几个阶段或连续进行，理论数量为至少两个阶段。 该方法特别适用于分离在蒸馏过程中容易分解的烯醇醚。

公开(公告)号：US5047377A

公开(公告)日：1991-09-10

申请号：US563396

申请日：1990-08-06

申请人： Heinz Erpenbach ,  Eitel Goedicke ,  Winfried Lork ,  Heribert Tetzlaff

发明人： Heinz Erpenbach ,  Eitel Goedicke ,  Winfried Lork ,  Heribert Tetzlaff

IPC分类号： B01J38/00 ,  B01J31/40 ,  B01J38/04 ,  C07B61/00 ,  C07C27/00 ,  C07C27/26 ,  C07C51/12 ,  C07C51/42 ,  C07C51/54 ,  C07C51/56 ,  C07C51/573 ,  C07C53/08 ,  C07C53/12 ,  C07C67/37 ,  C07C69/16

CPC分类号： B01J31/4069 ,  B01J31/0239 ,  B01J31/0268 ,  B01J31/20 ,  B01J31/26 ,  B01J31/4046 ,  B01J38/04 ,  C07C51/42 ,  C07C51/573 ,  C07C67/48 ,  B01J2038/005 ,  B01J2231/34 ,  B01J2531/822 ,  Y02P20/544 ,  Y02P20/584

摘要： In a process for the purification and recovery of a contaminated catalyst solution produced during carbonylation of methanol and/or methyl acetate and/or dimethyl ether and containing carbonyl complexes of rhodium, organic and/or inorganic promoters, undistillable organic impurities and acetic acid, acetic anhydride and ethylidene diacetate, the organic impurities and acetic acid, acetic anhydride and ethylidene diacetate are removed from the contaminatd catalyst solution by extraction at pressures from 35 to 450 bar and temperatures from 0.degree. to 120.degree. C. with a liquefied or supercritical gas, and the phase of the liquefied or supercritical gas is separated from the purified, promoter-containing catalyst solution, the phase of the liquefied or supercritical gas is separated by flash vaporization, the recovered gas is re-employed for extraction, acetic acid, acetic anhydride and ethylidene diacetate are separated off from the component which remains liquid, and are combined with the purified catalyst complex to prepare fresh catalyst solution and, finally, the organic impurities remaining as the residue on separation of the phase of the liquefied or supercritical gas is purged.

摘要翻译： 在用于纯化和回收在甲醇和/或乙酸甲酯和/或二甲醚的羰基化过程中产生的污染的催化剂溶液的方法中，并且含有铑，有机和/或无机促进剂，不可挥发的有机杂质和乙酸的羰基络合物，乙酸 酸酐和亚乙基二乙酸酯，通过用液化或超临界气体在35至450巴的压力和0至120℃的温度下萃取，从污染的催化剂溶液中除去有机杂质和乙酸，乙酸酐和亚乙基二乙酸酯， 液化或超临界气体的相与纯化的助催化剂催化剂溶液分离，液化或超临界气体的相通过闪蒸分离，回收的气体再次用于萃取，乙酸，乙酸酐 和亚乙基二乙酸酯从保持液体的组分中分离出来，并与 纯化催化剂配合物，制备新鲜的催化剂溶液，最后，清除液化或超临界气体相分离残余物中剩余的有机杂质。

公开(公告)号：US5326906A

公开(公告)日：1994-07-05

申请号：US819406

申请日：1992-01-10

申请人： Heribert Tetzlaff ,  Matthias Krull ,  Gernot Kremer ,  Christoph Porz

发明人： Heribert Tetzlaff ,  Matthias Krull ,  Gernot Kremer ,  Christoph Porz

IPC分类号： C07C303/44 ,  C07C309/14 ,  C07C315/06 ,  C07D207/08 ,  C07F9/38 ,  C07C61/00 ,  B01D35/00

CPC分类号： C07D207/08 ,  C07C303/44 ,  C07C315/06 ,  C07F9/3808

摘要： The ampholytes are extracted from the reaction solution with a liquid cation exchanger which is immiscible with the acidic aqueous reaction solution, where the cation exchanger is dissolved in at least one organic solvent which is immiscible with water and forms an organic phase with the organic solvent. Subsequently the organic phase which is loaded with the ampholyte is separated from the reaction solution, and then the ampholytes are back-extracted from the organic phase with aqueous solvents. The product losses in the process are low, and the residual salt content is very low.

摘要翻译： 使用液体阳离子交换剂从反应溶液中提取两性电解质，所述液体阳离子交换剂与酸性水性反应溶液不混溶，其中阳离子交换剂溶解在与水不混溶的至少一种有机溶剂中并与有机溶剂形成有机相。 随后，从反应溶液中分离装载两性电解质的有机相，然后用水溶剂从有机相中反萃取两性电解质。 该方法中的产品损失低，残留盐含量非常低。

公开(公告)号：US5068358A

公开(公告)日：1991-11-26

申请号：US419687

申请日：1989-10-11

申请人： Georg-Emerich Miess ,  Karl-Heinz Schwarz ,  Heribert Tetzlaff ,  Bernhard Wojtech

发明人： Georg-Emerich Miess ,  Karl-Heinz Schwarz ,  Heribert Tetzlaff ,  Bernhard Wojtech

IPC分类号： C07D207/267 ,  C07D207/38

CPC分类号： C07D207/38

摘要： The invention relates to a process for separating N-methyl-2-pyrrolidone (NMP) from aqueous solutions which are obtained in industry, inter alia, in the production of heat-resistance polymers such as polyamides and polyimides.According to the invention, the extractants used are phenols which are sparingly soluble in water, are aliphatically monosubstituted and/or polysubstituted in the nucleus and have 4 to 16 carbon atoms in the straight-chain or branched, saturated or unsaturated aliphatic radical and have a boiling point which is preferably at least 20.degree.-25.degree. C. above the boiling point of NMP. If necessary, an inert, viscosity-reducing diluent is added.

摘要翻译： 本发明涉及从工业上获得的水溶液中分离N-甲基-2-吡咯烷酮（NMP）的方法，特别是在生产耐热聚合物如聚酰胺和聚酰亚胺时。 根据本发明，所使用的萃取剂是微溶于水的酚，在核中脂肪单取代和/或多取代，在直链或支链，饱和或不饱和脂族基团中具有4至16个碳原子，并具有 沸点优选在NMP沸点以上至少20°-25℃。 如果需要，加入惰性的减粘稀释剂。

公开(公告)号：US5755980A

公开(公告)日：1998-05-26

申请号：US712428

申请日：1996-09-11

申请人： Joachim Semel ,  Heribert Tetzlaff

发明人： Joachim Semel ,  Heribert Tetzlaff

IPC分类号： B01D11/04 ,  C02F1/26 ,  C02F1/58

CPC分类号： C02F1/26

摘要： The invention relates to a process for eliminating adsorbable organic halogen compounds from an aqueous phase, in particular from wastewater or from a process solution, in which the aqueous phase is treated with a nonaqueous extraction medium in a liquid-liquid extraction, which comprises, after the extraction, subjecting the adsorbable organic halogen compounds in the extraction medium to a Wurtz-Fittig reaction. Only small amounts of noncritical products such as NaOH and Hcl, which can be readily removed, are formed in the nonaqueous extraction medium. By means of this process, the cost of the chemicals which conventionally arises in the elimination of the adsorbable organic halogen compounds is considerably decreased.

摘要翻译： 本发明涉及一种从水相，特别是废水或工艺溶液中除去可吸附的有机卤素化合物的方法，其中水相用液 - 液萃取中的非水萃取介质处理，该方法包括在 提取，将萃取介质中的可吸附有机卤素化合物进行Wurtz-Fittig反应。 在非水萃取介质中只形成少量的非临界产物如NaOH和Hcl，可以容易地除去。 通过这个过程，在消除可吸附的有机卤素化合物中常规产生的化学品的成本大大降低。

公开(公告)号：US5507304A

公开(公告)日：1996-04-16

申请号：US523427

申请日：1995-09-05

申请人： Joanne C. Maheras ,  John B. Hopkins, Jr. ,  Heribert Tetzlaff

发明人： Joanne C. Maheras ,  John B. Hopkins, Jr. ,  Heribert Tetzlaff

IPC分类号： A24D3/10 ,  A24D3/14 ,  C08J5/18 ,  C08L1/00 ,  C08L1/12 ,  C08L3/00 ,  C08L3/06 ,  D01F2/28 ,  D01F8/02 ,  A24D3/06

CPC分类号： C08J5/18 ,  A24D3/10 ,  A24D3/14 ,  C08L1/12 ,  C08L3/06 ,  D01F2/28 ,  C08J2301/12 ,  C08J2303/06

摘要： A blend of cellulose acetate and starch acetate used to make fibers, filaments, yarns, fabrics, plastic materials and other uses is disclosed. Additionally, the invention relates to the process of making said blend; cigarette filters made from tow composed of said blend; cigarettes made with filters made from tow of said blend as well as acetate flake and other compositions containing said blend.

摘要翻译： 公开了用于制造纤维，长丝，纱线，织物，塑料材料和其它用途的醋酸纤维素和淀粉乙酸酯的混合物。 另外，本发明涉及制备所述共混物的方法; 由所述混合物组成的丝束制成的香烟过滤嘴; 用由所述共混物的丝束制成的过滤嘴以及含有所述共混物的乙酸盐薄片和其它组合物制成的香烟。

公开(公告)号：US4986974A

公开(公告)日：1991-01-22

申请号：US400272

申请日：1989-08-29

申请人： Wilhelm Lendle ,  Wolfgang Scheibitz ,  Heribert Tetzlaff ,  Bernhard Wojtech

发明人： Wilhelm Lendle ,  Wolfgang Scheibitz ,  Heribert Tetzlaff ,  Bernhard Wojtech

IPC分类号： C07C17/38 ,  C01B7/07 ,  C07C17/00 ,  C07C19/01 ,  C07C19/04 ,  C07C19/041 ,  C07C19/08 ,  C07C67/00

CPC分类号： C01B7/0731 ,  Y10S210/908 ,  Y10S210/909

摘要： A process is disclosed for the separation of halogenated hydrocarbons from concentrated hydrochloric acid, which contains 10 to 37% by weight of hydrogen chloride. The hydrochloric acid is freed from the halogenated hydrocarbons in an extraction with paraffins having more than 7 carbon atoms, or with paraffin waxes having dropping points from 70.degree. to 160.degree. C. or with paraffin/paraffin wax mixtures, preferably in a continuous counterflow extraction or cross-flow extraction.

摘要翻译： 公开了用于从含有10至37重量％氯化氢的浓盐酸中分离卤代烃的方法。 在具有多于7个碳原子的链烷烃的提取物中，或者使用滴点为70至160℃的石蜡或石蜡/石蜡混合物，优选在连续逆流萃取中，将盐酸从卤代烃中脱除 或交叉流提取。