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1. 发明授权

US2550789A Preparation of sulfonamidodiphenylamines 失效
标题翻译：磺酰胺基二苯胺的制备
公开(公告)号：US2550789A
公开(公告)日：1951-05-01
申请号：US280248
申请日：1948-01-16
申请人： CELANESE CORP
发明人： EDWARDS WALTER R
IPC分类号： C09B51/00
CPC分类号： C09B51/00

2. 发明授权

US2440760A Process for production of 1-amino-2-sulfo-4-brom-anthraquinone 失效
标题翻译： 1-氨基-2-磺基-4-溴 - 蒽醌的制备方法
公开(公告)号：US2440760A
公开(公告)日：1948-05-04
申请号：US55396044
申请日：1944-09-13
申请人： CELANESE CORP
发明人： SEYMOUR GEORGE W , SALVIN VICTOR S , EDWARDS WALTER R
IPC分类号： C09B1/24
CPC分类号： C09B1/24

3. 发明授权

US2764607A Recovery of phosgene in the production of chloroformates 失效
标题翻译：回收光气生产氯甲酸酯
公开(公告)号：US2764607A
公开(公告)日：1956-09-25
申请号：US30116852
申请日：1952-07-26
申请人： CELANESE CORP
发明人： HIESERMAN CLARENCE E , EDWARDS WALTER R
IPC分类号： C01B32/80 , C07C68/02 , C07C69/96
CPC分类号： C07C69/96 , C01B7/0731 , C01B32/00 , C01B32/70 , C01B32/80 , C07C68/02
摘要： Chloroformates are prepared by reacting a hydroxy compound, e.g. mono- or polyhydric alcohols or phenols, with phosgene, the unreacted phosgene being recovered and recirculated. Specified hydroxy compounds are ethyl or butyl alcohols, ethylene, diethylene, tri- and tetra-methylene glycols, glycerol, mannitol, phenol and resorcinol. The examples refer to the production of butanediol-bis-chloroformate by reaction of phosgene and butanediol-1:4 in molar ratio 3:1 in a vessel fitted with a condenser brine-cooled to -18 DEG C.ALSO:Phosgene is recovered by treating a gaseous mixture containing phosgene and hydrogen chloride with a specified preferential solvent for phosgene to obtain a solution containing phosgene. The treatment should be at below 0 DEG C. between the boiling point of phosgene and that of hydrogen chloride, e.g. -10 to -40 DEG C., and the amount of solvent should be such as to recover at least 90 per cent phosgene. The phosgene and any hydrogen chloride present is vaporized from the solution by distillation and the phosgene is separated by fractional condensation. Specified solvents are monochlorobenzene, a liquid chlorinated lower molecular weight paraffin hydrocarbon, e.g. dichloroethane chloroform and carbon tetrachloride, a liquid aromatic hydrocarbon, e.g. xylene and benzene, a lower molecular weight paraffin hydrocarbon liquid fatty acids, e.g. acetic, and liquid fatty acid esters, e.g. ethyl acetate. Lower molecular weight paraffin hydrocarbons denote hydrocarbons containing up to 10 carbon atoms in the molecule. Phosgene may be recovered by this process from the gas mixture of phosgene and hydrogen chloride resulting from the production of chloroformates by reacting a hydroxy compound, e.g. mono- or polyhydric alcohols or phenols, with phosgene, and the phosgene recirculated.

4. 发明授权

US2983952A Wet spinning apparatus 失效
标题翻译：湿纺设备
公开(公告)号：US2983952A
公开(公告)日：1961-05-16
申请号：US47706254
申请日：1954-12-22
申请人： CELANESE CORP
发明人： EDWARDS WALTER R , PLINER NORMAN S
IPC分类号： D01D5/06
CPC分类号： D01D5/06

5. 发明授权

US2604480A 1-amino-2-bromo-4-hydroxy-anthraquinone by hydrolysis of 1-amino 2,4-dibrom anthraquinone 失效
标题翻译： 1-氨基-2-溴-4-羟基 - 蒽醌通过1-氨基2,4-二溴蒽醌的水解
公开(公告)号：US2604480A
公开(公告)日：1952-07-22
申请号：US77139247
申请日：1947-08-29
申请人： CELANESE CORP
发明人： SEYMOUR GEORGE W , SALVIN VICTOR S , EDWARDS WALTER R
IPC分类号： C09B1/503
CPC分类号： C09B1/503

6. 发明授权

US2593548A Gas scrubbing device 失效
公开(公告)号：US2593548A
公开(公告)日：1952-04-22
申请号：US280148
申请日：1948-01-16
申请人： CELANESE CORP
发明人： EDWARDS WALTER R
IPC分类号： B01D47/06
CPC分类号： B01D47/06 , Y10S261/54

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