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1. 发明专利

GB686166A Purification of crystallisable aromatic to compounds in tar distillates 未知
公开(公告)号：GB686166A
公开(公告)日：1953-01-21
申请号：GB1095649
申请日：1949-04-25
申请人： WM BUTLER & CO BRISTOL LTD , NOEL HOWARD POYNTON
IPC分类号： C07C7/14
摘要： Purified crystalline compounds such as naphthalene, anthracene, phenanthrene, and carbazole, are obtained from tar distillates by cooling the distillate to effect crystallization, draining away the supernatant oil by gravity, washing the crystals with a solvent (e.g. methanol or industrial methylated spirits) in which the crystals are relatively insoluble but in which the oil is relatively soluble, draining away by gravity the solvent containing the impurities, and separating adhering solvent from the crystals, e.g. by heating. The invention obviates the necessity of centrifuging and hot pressing. In an example, a coal tar distillate (1000 lbs.) having a boiling range of 200-240 DEG C. was charged to a vertical column and allowed to cool slowly. When the temperature had fallen to 25 DEG C., a valve at the base of the column was opened and the liquid was allowed to drain from the crystals, which remained in the column in the form of a honeycomb. Methanol (45 gallons) which had been used previously and contained 10 per cent of oil, was then added to the column; and after standing for 2 hours, it was drained away again and passed to a still for recovery of methanol. Fresh methanol (45 gallons) was then added, and upon draining, the oil content was found to be 9 per cent; this material was stored to be used as initial wash for a succeeding batch. The naphthalene crystals remaining were melted by means of a steam-coil in the vessel, and the methanol which remained adhering to the crystals, was distilled off and recovered, before subjecting the purified naphthalene to sublimation. The yield of sublimed naphthalene (M.P. 79.8 DEG C.) was 3 cwts. Specification 630,397 is referred to.ALSO:Purified crystalline compounds such as naphthalene, anthracene, phenanthrene, and carbazole, are obtained from tar distillates by cooling the distillate to effect crystallization, draining away the supernatant oil by gravity, washing the crystals with a solvent (e.g. methanol or industrial methylated spirits) in which the crystals are relatively insoluble but in which the oil is relatively soluble, draining away by gravity the solvent containing the impurities, and separating adhering solvent from the crystals, e.g. by heating. The invention obviates the necessity of centrifuging and hot pressing. In an example a coal tar distillate (1000 lbs.) having a boiling range of 200 DEG -240 DEG C was charged to a vertical column and allowed to cool slowly. When the temperature had fallen to 25 DEG C, a valve at the base of the column was opened and the liquid was allowed to drain from the crystals, which remained in the column in the form of a honeycomb. Methanol (45 gallons) which had been used previously and contained 10 per cent of oil, was then added to the column; and after standing for 2 hours, it was drained away again and passed to a still for recovery of methanol. Fresh methanol (45 gallons) was then added, and upon draining, the oil content was found to be 9 per cent; this material was stored to be used as initial wash for a succeeding batch. The naphthalene crystals remaining were melted by means of a steam-coil in the vessel, and the methanol which remained adhering to the crystals, was distilled off and recovered, before subjecting the purified naphthalene to sublimation. The yield of sublimed naphthalene (M.P. 79.8 DEG C) was 3 cwts. Specification 630,397 is referred to.

2. 发明专利

GB701097A An improved process for the purification of naphthalene 未知
公开(公告)号：GB701097A
公开(公告)日：1953-12-16
申请号：GB903450
申请日：1950-04-12
申请人： WM BUTLER & CO BRISTOL LTD , NOEL HOWARD POYNTON
IPC分类号： C07C7/148
摘要： Crude naphthalene is purified by a process which comprises treating at elevated temperature the crude liquid naphthalene with a small proportion of isobutene gas, tertiary butyl alcohol or di-isobutene in the presence of an acid catalyst whereby the isobutene, tertiary butyl alcohol or di-isobutene combines with the impurities without reacting with the naphthalene and separating the unchanged naphthalene from the products of the reaction. Acid catalysts mentioned are phosphoric acid and concentrated sulphuric. The naphthalene may be finally washed with water and dilute caustic soda solution. In examples: A C4 refinery gas containing isobutene is passed through crude, heated, liquid naphthalene in the presence of concentrated sulphuric acid (I) and (III) and a mixture of crude naphthalene, tertiary butyl alcohol and sulphuric acid is heated under reflux (II). The naphthalene is recovered by sublimation in each example and in example (I) the product is compared with the products obtained by purifying crude naphthalene by sublimation and washing with concentrated sulphuric acid, water and caustic soda.

3. 发明授权

US06185883B1 Window with decorative accessories 失效
标题翻译：窗口装饰配件
公开(公告)号：US06185883B1
公开(公告)日：2001-02-13
申请号：US09224319
申请日：1998-12-31
申请人： Noel Howard
发明人： Noel Howard
IPC分类号： E06B366
CPC分类号： B44F1/066 , E06B3/6604
摘要： A window with decorative accessories for providing a decorative structure while increasing energy efficiency. The window with decorative accessories includes a window frame that has a pair of spaced apart lateral members and upper and lower members extending between the lateral members. Spaced apart first and second panes of glass are mounted in the window frame. A third pane of glass has a plurality of decorative accessories thereon. The third pane is disposed between the first and second panes.
摘要翻译：带有装饰配件的窗户，提供装饰结构，同时提高能源效率。具有装饰配件的窗户包括具有一对间隔开的侧面构件的窗框架，以及在侧面构件之间延伸的上部和下部构件。隔开的第一和第二玻璃窗被安装在窗框中。第三玻璃板上有多个装饰配件。第三窗格设置在第一和第二窗格之间。

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