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91. 发明专利

AU5877780A PREPARATION OF BIS-PHENOXIDES AND BISIMIDES 未知
公开(公告)号：AU5877780A
公开(公告)日：1980-11-13
申请号：AU5877780
申请日：1980-05-27
申请人： GEN ELECTRIC
发明人： WILLIAMS F J , DELLACOLETTA B A
IPC分类号： B01J31/00 , B01J31/02 , C07B61/00 , C07C27/00 , C07C37/66 , C07C37/78 , C07C41/00 , C07C43/295 , C07C45/00 , C07C49/83 , C07C67/00 , C07C313/00 , C07C323/12 , C07D209/48 , C07C39/44
摘要： A method is provided for making alkali metal bisphenoxide salts by refluxing a heterogenous mixture of a non-polar organic solvent and an aqueous solution of an alkali metal bisphenoxide. These bisphenoxide salts can be used thereafter to make aromatic bis(ether phthalimides) by reaction with nuclear ring substituted N-organo phthalimides.

92. 发明专利

CA1006839A PROCESS FOR THE PURIFICATION OF AN AROMATIC HYDROXYL COMPOUND 未知
公开(公告)号：CA1006839A
公开(公告)日：1977-03-15
申请号：CA176806
申请日：1973-07-18
申请人： UNION CARBIDE CORP
发明人： KARHAN TERRY L , KAUFMAN STEPHEN
IPC分类号： C07C37/78

93. 发明专利

DE2422532A1 Bisphenol A prodn - by reaction of phenol and acetone in presence of acid catalyst and ethyl mercaptan 未知
公开(公告)号：DE2422532A1
公开(公告)日：1975-11-13
申请号：DE2422532
申请日：1974-05-09
申请人： COMBINATUL PETROCHIMIC BORZEST
发明人： SFINTESCU CLAUDIU GH ION DIPL , ANTON ION DIPL ING , IACOB VICTOR DIPL ING , STAN TRAIAN DIPL ING , IVANOVICI ANDREI DIPL ING , DRAGOMIR MIHAIL DIPL ING , SMORJEVSCHI MARIA DIPL ING , STOICA LUMINITA DIPL ING , IOHAN FRANCISCA , HERSCOVICI JUSTIN DIPL ING , TARALUNGA DANUT , BERCU LEON DIPL ING , BANCILA MARGARETA DIPL ING , ANGHELUTA ANETA DIPL ING , CAPRUCIU FILOFTEIA DIPL ING
IPC分类号： C07C37/20 , C07C37/78 , C07C39/16
摘要： Continuous process for prodn. of 2,2-bis(4-hydroxyphenyl)-propane (I) by reaction of phenol and acetone in the presence of an acidic catalyst and ethyl mercaptan at 60-85 degrees C, followed by removal of a light fraction from the reaction mixture by distillation and purifn. of the remaining reaction mixture, in which the reaction is in a single stage, an aromatic hydrocarbon solvent is added to azeotrope a light fraction from the reaction mixture by distillation, followed by solvent extraction of phenol. The reaction can be carried out with a more efficient control of temp. and in a simpler installation, with thermal decompsn. avoided by using temps. 150 degrees C. Prior art problems of phenol-contg. condensate disposal are avoided.

94. 发明专利

GB1410750A PROCESS FOR BISPHENOL PRODUCTION 未知
公开(公告)号：GB1410750A
公开(公告)日：1975-10-22
申请号：GB2110874
申请日：1974-05-13
申请人： COMBINATURL PETROCHEMIC BORZES
IPC分类号： C07C37/20 , C07C37/72 , C07C37/78 , C07C39/16
摘要： 1410750 Production of bisphenol COMBINATUL PETROCHIMIC BORZESTI 13 May 1974 21108/74 Heading C2C The invention comprises a continuous process for the production of 2,2-bis-(4-hydroxyphenyl)- propane by the reaction of phenol with acetone in the presence of an acidic catalyst and ethyl mercaptan at a temperature of from 60 to 85‹ C., followed by removal of a light fraction from the reaction mixture by distillation and purification of the remaining reaction mixture, in which the reaction between phenol and acetone is carried out in a single stage, an aromatic hydrocarbon solvent is added to the reaction mixture obtained and azeotropic distillation is effected to remove a light fraction from the reaction mixture, and the remaining reaction mixture is subjected to solvent extraction to remove phenol therefrom.

95. 发明专利

DE1159467B 未知
公开(公告)号：DE1159467B
公开(公告)日：1963-12-19
申请号：DER0009389
申请日：1952-07-01
申请人： RUETGERSWERKE AG
发明人： LANG DR KARL FRIEDRICH , SCHILDWAECHTER DR-ING HABIL HE
IPC分类号： C07C7/05 , C07C37/78

96. 发明专利

GB928329A Recovery of ªÐ,ªÐ-isopropylidenediphenol 未知
公开(公告)号：GB928329A
公开(公告)日：1963-06-12
申请号：GB966462
申请日：1962-03-12
申请人： ALLIED CHEM
IPC分类号： C07C37/68 , C07C37/74 , C07C37/78 , C07C37/86 , C07C39/16
摘要： 2,2-Bis-(4-hydroxyphenyl) propane is recovered from mixtures with by-products of the HCl-catalysed reaction of phenol and p acetone, the mixtures also containing water, unreacted starting materials and catalyst, by a process comprising removing part of the HCl and part of the acetone by distillation without removing HCl in the form of an azeotrope with water and phenol, neutralising the HCl remaining in the distillation residue, removing by distillation the remaining acetone and the water in the form of an azeotrope with phenol, crystallising the residue to give a slurry of crystals comprising a complex of the bisphenol with phenol in liquid phenol, and separating the crystals from the slurry.

97. 发明专利

FR1139554A 未知
公开(公告)号：FR1139554A
公开(公告)日：1957-07-02
申请号：FR1139554D
申请日：1952-11-22
申请人： RUETGERSWERKE AG
IPC分类号： C07C7/05 , C07C37/78 , C07C37/80

98. 发明专利

GB768941A Separation of phenols from aromatic iso-propyl compounds by distillation 未知
公开(公告)号：GB768941A
公开(公告)日：1957-02-27
申请号：GB2913952
申请日：1952-11-18
申请人： RUETGERSWERKE AG
IPC分类号： B01D1/28 , B01D3/14 , C07C37/78
摘要： A mixture containing a phenol and an isopropyl-substituted benzene or naphthalene, e.g. a mixture obtained by the decomposition of an organic hydroperoxide, is subjected to distillation in the presence of water using a fractionating column whereby an azeotrope of water and the isopropyl compound distils over; the vapours are condensed yielding a condensate which separates into a hydrocarbon layer and a water layer, part of the hydrocarbon layer and part or all of the water layer are returned to the column as reflux, and phenol, free from the isopropyl compound, is obtained as base product. The hydrocarbon obtained as distillate contains only a trace of phenol, and may be subjected to oxidation to make hydroperoxide. The distillation may be employed for the separation of phenol from cumene, of cresol from cymene, of pyrogallol from tri-isoproyl-benzene, and of naphthol from isopropyl-naphthalene. The distillation may be carried out under normal pressure, partial vacuum, or superatmospheric pressure. In an example, water ((75 parts) is added to a reaction mixture containing cumene (75 parts) and phenol (25 parts). The resulting mixture is subjected to discontinuous distillation at atmospheric pressure in an apparatus comprising a still, fractionating column, dephlegmator, condenser, and decanter. The cumene-water azeotrope passes over at a head temperature of 94 DEG -95 DEG C. A reflux ratio of 6:1 of the condensed cumene layer is employed. The water layer is returned in part to the column and in part to the still so that the ratio cumene:water is always at least 1:1. About 92 per cent of the cumene is recovered as distillate in this manner; and contains only 0.03 per cent of phenol. An intermediated fraction is next recovered, until the head temperature reaches 100 DEG C. without supplying water to the still; and finally the water remaining in the still is distilled off. The aqueous intermediate fraction which contains a small amount of cumene and 4.3 per cent phenol, is added to the next batch of reaction mixture to be distilled. The phenol obtained as still-residue is free from water and cumene. In another example, a mixture containing 1 part of phenol and 3 parts of cumene is introduced through tube 1 into the upper part 3 of a tray-type fractionating column. Simultaneously, water is introduced into the column at about the same level through tube 18, the ratio water:cumene of the feed being 3:4 by weight. The overhead vapours are taken off at a temperature of about 95 DEG C., and are conducted through tube 4 to mechanical compressor 5 where the pressure is increased by about 0.2-0.4 kg./cm2. The compressed vapours are condensed, at a temperature of at least 100 DEG C., in coil 6 disposed in trough 7 which receives the reflux flowing down the column; and the reflux liquid is partly vaporized by the heat of condensation of the compressed vapours. The excess reflux overflows through tube 8 to the top tray of the lower part 2 of the column. The sump 20 of the column is maintained at the boiling-point of phenol by means of reheater 22. Phenol, free from cumene, is discharged through tube 21. The condensate discharged from coil 6 is relieved from pressure in pot 9, and flows to separator 10. Cumene overflows from separator 10 to receiver 11. Part of the cumene is supplied by pump 12 to the head of the column as reflux, and the remainder is withdrawn from the system through tube 13. The water separated in separator 10 flows through tube 23 into receiver 14. From the latter, water is pumped through tube 16 to the head of the column in such an amount that the reflux contains water and cumene in the ratio of 3:4. Pump 17 supplies water to the column through tube 18. If, instead of a mechanical compressor, a steam jet compressor is used, water corresponding to the amount of power steam, will leave receiver 14 through tube 19. Specifications 595,406 and 626,095 [Group IV(b)] are referred to.

99. 发明专利

DE808953C 未知
公开(公告)号：DE808953C
公开(公告)日：1951-07-23
申请号：DES0000332
申请日：1949-10-29
申请人： SOLVAY
IPC分类号： C07C37/02 , C07C37/78 , C07C39/04

100. 发明专利

FR948753A 未知
公开(公告)号：FR948753A
公开(公告)日：1949-08-10
申请号：FR948753D
申请日：1947-07-03
申请人： SOLVAY
IPC分类号： C07C37/02 , C07C37/78 , C07C39/04

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