公开(公告)号：US4113649A

公开(公告)日：1978-09-12

申请号：US711742

申请日：1976-08-04

Applicant: Herbert Lehmkuhl ,  Farroch Rabet

Inventor： Herbert Lehmkuhl ,  Farroch Rabet

IPC: C07C67/10 ,  B01D11/04 ,  B01F1/00 ,  C01D1/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/20 ,  C07C43/11 ,  C07C43/12 ,  C07C53/10 ,  C07C53/16 ,  C07C67/00 ,  C07C205/24 ,  C07C253/00 ,  C07C255/33 ,  C07F1/00 ,  C08G65/32 ,  C09K3/00 ,  C22B26/20 ,  B01F3/00

CPC classification number: C07C67/11 ,  C07C17/208 ,  C07C201/16 ,  C07C253/14 ,  C07F1/005 ,  Y10S516/01

Abstract: Process of solubilizing alkali- and alkali-earth metal salts, characterized in that the salts are reacted in the presence of solvents if desired, with open-chain polyethyleneglycoldiethers of the general formulaRO--[CH.sub.2 CH.sub.2 O].sub.n R'wherein n = 6 or more and R and R' are identical or different and represent alkyl, aryl or cycloalkyl groups respectively, the polyethyleneglycoldiethers having at least 7 oxygen atoms which are separated from one another each by two carbon atoms. The process can also be used to dissolve alkali metals.

Abstract translation: 溶解碱金属和碱土金属盐的方法，其特征在于如果需要，盐在溶剂存在下与通式为RO = [CH 2 CH 2 O] n R'的开环聚乙二醇缩合物反应，其中n = 6或更多，以及 R和R'相同或不同，分别代表烷基，芳基或环烷基，具有至少7个氧原子的聚乙二醇缩合物彼此分开两个碳原子。 该方法也可用于溶解碱金属。

公开(公告)号：US4053526A

公开(公告)日：1977-10-11

申请号：US672689

申请日：1976-04-01

Applicant: Heinz Ulrich Blank ,  Friedrich Durholz ,  Guido Skipka

Inventor： Heinz Ulrich Blank ,  Friedrich Durholz ,  Guido Skipka

IPC: C07C205/05 ,  C07C67/00 ,  C07C201/00 ,  C07C201/16 ,  C07C79/10

CPC classification number: C07C201/16

Abstract: 1,5- AND 1,8-DINITRONAPHTHALENES ARE ISOLATED FROM MIXTURES OF ISOMETRIC DINITRONAPHTHALENES AT LEAST CONTAINING THE SAME. The mixture of isomers is treated successively with a more polar solvent and a less polar aromatic solvent for dinitronaphthalenes thereby dissolving the mixture of isomers except for 1,5-dinitronaphthalenes which remains largely undissolved in the more polar solvent. The residual mixture of isomers is subsequently treated, after removal of the more polar solvent, with a less polar aromatic solvent at elevated temperatures in which 1,8-dinitronaphthalenes remains as a largely insoluble residue.

公开(公告)号：US4018828A

公开(公告)日：1977-04-19

申请号：US581288

申请日：1975-05-27

Applicant: Anatoli Onopchenko ,  Johann G. D. Schulz

Inventor： Anatoli Onopchenko ,  Johann G. D. Schulz

IPC: C07C45/28 ,  C07C45/81 ,  C07C201/16 ,  C07C49/76

CPC classification number: C07C45/81 ,  C07C201/16 ,  C07C45/28

Abstract: A process for recovering a dialkylarylketone from an oily mixture containing it and largely a 1,1-diaryl-2-nitro-ethylene which comprises adding a base to the mixture until solidification of the dialkylarylketone occurs and then recovering the solid dialkylarylketone.

Abstract translation: 从含有它的油性混合物和大量1,1-二芳基-2-硝基 - 乙烯中回收二烷基芳基酮的方法，其包括向混合物中加入碱直到二烷基芳基酮固化，然后回收固体二烷基芳基酮。

公开(公告)号：US3948972A

公开(公告)日：1976-04-06

申请号：US414891

申请日：1973-11-12

Applicant: James Albert Baker ,  Antony Gray ,  John Francis Benford

Inventor： James Albert Baker ,  Antony Gray ,  John Francis Benford

IPC: C07C205/57 ,  C07C76/02

CPC classification number: C07C201/12 ,  C07C201/16 ,  C07C227/04 ,  C07C227/40

Abstract: Glycerol esters of nitrobenzoic acid are prepared by heating a mixture of a nitrobenzoic acid and glycerol in the presence of a catalytic quantity of an acid esterification catalyst which is soluble in the reaction medium at the reaction temperature. An entraining liquid having a boiling point above 100.degree.C is also present in the raction mixture. The reaction mixture is heated to a temperature above 100.degree.C so that liberated water is separated by azeotropic distillation. Surprisingly good yields are obtained using these reaction conditions.

Abstract translation: 在催化量的酸酯化催化剂存在下，在反应温度下可溶于反应介质的硝基苯甲酸和甘油的混合物中，制备硝基苯甲酸的甘油酯。 沸点高于100℃的夹带液也存在于反应混合物中。 将反应混合物加热至高于100℃的温度，以便通过共沸蒸馏分离释放的水。 令人惊讶的是，使用这些反应条件获得良好的收率。

公开(公告)号：US3933929A

公开(公告)日：1976-01-20

申请号：US360097

申请日：1973-05-14

Applicant: Gilbert Colovray

Inventor： Gilbert Colovray

IPC: C07C205/22 ,  C07C67/00 ,  C07C201/00 ,  C07C201/16 ,  C07C37/22 ,  C07C37/40

CPC classification number: C07C201/16 ,  C07C201/08 ,  C07C205/22

Abstract: In a purification process for p-nitrophenol obtained by nitration of phenol, separation of crude nitrophenols, steam distillation to remove o-nitrophenol, and cooling the broth obtained when it contains more than 0.5% sodium bisulphite and is at pH 5.4 to 6.4 to deposit crystals of p-nitrophenol, an improvement consists in stirring the crystals with water at 55.degree.-85.degree.C to give a mixture containing 10-40% excess of p-nitrophenol over the solubility at that temperature, separating the upper layer of p-nitrophenol in water obtained, cooling it to 40.degree.-50.degree.C and separating the layer of water in p-nitrophenol, cooling the latter to below 30.degree.C and collecting the crystals deposited.

Abstract translation: 在通过硝化苯酚获得的对硝基苯酚的纯化方法中，分离粗的硝基酚，蒸汽蒸馏以除去邻硝基苯酚，并且当其含有超过0.5％的亚硫酸氢钠时，获得的培养基冷却并且在pH 5.4至6.4下沉积 对硝基苯酚的晶体的改进在于在55℃-85℃下用水搅拌晶体，得到含有10-40％过量的对硝基苯酚的混合物超过该温度下的溶解度， 硝基苯酚在水中的溶液中，冷却至40°-50℃，分离出对硝基苯酚的水层，将其冷却至30℃以下，收集晶体沉积物。

公开(公告)号：US3933926A

公开(公告)日：1976-01-20

申请号：US365208

申请日：1973-05-30

Applicant: David Anthony Salter ,  Robert John James Simkins

Inventor： David Anthony Salter ,  Robert John James Simkins

IPC: C07C201/10 ,  C07C201/16 ,  C07C205/23 ,  C07C205/24 ,  C07C205/25 ,  C07C205/37 ,  C07C207/04 ,  C07C79/26 ,  C07C79/30

CPC classification number: C07C201/16 ,  C07C201/00 ,  C07C201/06 ,  C07C201/08

Abstract: A process for the preparation of nitrophenols by adding over a period of time a suspension containing from about 4 to about 20 per cent weight/volume of nitrosated phenol to a nitric acid solution containing between 45 and 100 per cent by weight of nitric acid, said solution being maintained at a temperature in the range from about 45.degree. to 100.degree.C.

Abstract translation: 一种通过在一段时间内加入含有约4至约20重量/体积的亚硝化苯酚的悬浮液至含有45至100重量％硝酸的硝酸溶液来制备硝基酚的方法，所述方法 溶液保持在约45℃至100℃的温度范围内。

公开(公告)号：US3923845A

公开(公告)日：1975-12-02

申请号：US38483473

申请日：1973-08-02

Applicant: BASF AG

Inventor： BANTEL KARL-HEINZ ,  EILINGSFELD HEINZ ,  STOECKELMANN GUENTER

IPC: C07C205/47 ,  C07C20060101 ,  C07C67/00 ,  C07C201/00 ,  C07C79/37

CPC classification number: C07C201/16 ,  C07C205/47

Abstract: A process for the recovery of 1-nitroanthraquinone in a purified state from a nitroanthraquinone mixture containing it by treatment with a base in the presence of an initiator such as nitrite, halide, thiocyanate, alcoholate or phenolate ions in an organic solvent. A 1-nitroanthraquinone is obtained which is essentially pure or contains only small quantities of isomers and dinitroanthraquinones.

Abstract translation: 通过在有机溶剂中在引发剂如亚硝酸盐，卤化物，硫氰酸盐，醇化物或酚盐离子存在下用碱处理，从含有它的硝基蒽醌混合物中回收纯化状态的1-硝基蒽醌的方法。 得到基本上纯的或仅含有少量异构体和二硝基蒽醌的1-硝基蒽醌。

公开(公告)号：US3819680A

公开(公告)日：1974-06-25

申请号：US4153470

申请日：1970-05-28

Applicant: GAF CORP

Inventor： WELCH E ,  YAMASHITA K ,  GRAHAM D

IPC: C07C205/57 ,  C07C205/58 ,  C07C101/54 ,  C07C101/58

CPC classification number: C07C205/57 ,  C07C201/08 ,  C07C201/16 ,  C07C205/58 ,  C07C227/04 ,  C07C229/60

Abstract: MONONITRO DERIVATIVES OF BENZOIC ACID, AND MONO- AND DICHLORO-BENZOIC ACID, ARE PRODUCED ECONOMICALLY AND IN GOOD YIELD BY NITRATION OF BENZOIC ACID OR CHLORO- OR DICHLORO-BENZOIC ACID ESTERS, PREFERABLY A LOWER ALKYL ESTER, WITH A MIXTURE OF NITRIC ACID AND SULFURIC ACID, OR OLEUM CONTAINING UP TO THE THEORETICAL OF SULFUR TRIOXIDE REQUIRED TO COMBINE WITH THE WATER FORMED IN NITRATION, AT A TEMPERATURE OF ABOUT 10* C, TO ABOUT 80* C. THE THUS PRODUCED MONONITRO ESTERS MAY BE HYDROLYZED TO THE CORRESPONDING MONONITRO-ACID.

公开(公告)号：US3816551A

公开(公告)日：1974-06-11

申请号：US28599372

申请日：1972-09-05

Applicant: MONSANTO CO

Inventor： LEE R

IPC: B01D9/00 ,  C07C201/16 ,  C07C79/12

CPC classification number: C07C201/16 ,  B01D9/0009 ,  B01D9/005 ,  C07C205/12

Abstract: AN IMPROVED PROCESS FOR SEPARATING AN ISOMER FROM A MIXTURE OF ISOMERS BY CRYSTALLIZATION, THE IMPROVEMENT BEING THE PRESENCE OF WATER IN THE CRYSTALLIZER TO ENHANCE CRYSTALLIZATION. ISOMERS OF HALOBENZENE, NITROBENZENE, NITROHALOBENZENE AND MIXTURES THEREOF CAN BE SEPARATED.

公开(公告)号：US3781374A

公开(公告)日：1973-12-25

申请号：US3781374D

申请日：1972-12-11

Applicant: NITRO NOBEL AB

Inventor： RAGNVALD FOSSAN K

IPC: C07C201/16 ,  C07C79/14

CPC classification number: C07C201/16 ,  C07C205/02

Abstract: A METHOD FOR THE ISOLATION OF TETRANITROMETHANE FROM A SOLUTION OF NITRIC ACID WITH COMPARATIVELY LOW CONTENTS OF TETRANITROMETHANE IS DISCLOSED ACCORDING TO WHICH METHOD A MIXTURE COMPRISING TETRANITROMETHANE AND NITRIC ACID IS SUBJECTED TO DISTILLATION TO CAUSE AN AZEOTROPIC MIXTURE OF 30% OF TETRANITROMETHANE AND 70% OF HNO3 TO EVAPORATE, WHEREAFTER THE DISTILLATE CONSISTING OF THE AZEOTROPIC MIXTURE IS ADDED WITH WATER IN ORDER TO BREAK THE AZEOTROPE.