Oppsamler for hundeekskrementer
申请(专利)号： NO19970000937
专利号： NO970937A 主分类号： A01K23/00 申请权利人： LANGLEY, JOHN
CHARLES 公开国代码： NO 优先权国家： GB
摘 要：
A number of solid peroxyacids are obtained by precipitation from a highly acidic reaction media in which they are prepared by sulphuric acid catalysed reaction of a corresponding carboxylic acid with hydrogen peroxide. The physical characteristics and purity of the
precipitated solids are controlled by the method of precipitation. A product having a balance of acceptable filtration and washing rate with acceptable product purity is obtained by precipitating in the presence of a surfactant at a low
concentration, such as in the range of from about 0.02 % to 0.5 % by weight, based on the weight of the diluted
reaction mixture. The dilution process can be carried out in a single stage process, batchwise or continuously, or in a multi stage dilution process in which the first stage preferably dilutes to the point at or around when precipitation appears and is conducted rapidly, and subsequent
dilution is conducted more slowly. Dilution can be conducted using water/ice,
申请日： 1997-02-28 公开公告日： 1997-04-15
分类号： A01K23/00 发明设计人： LANGLEY, JOHN
CHARLES 申请国代码： NO
优先权： 19950829 GB
9502033; 19940903 GB 9417744
摘 要 附 图：
optionally containing to a lower
concentration sulphuric acid and/or dilute hydrogen peroxide. The invention process is particularly suitable for the preparation of particulate poorly water-soluble diamidoperacids, including specifically terephthaloyl diamidoperoxycaproic acid of formula HO3C-(CH2)5-NH-CO-C6H4-CO-NH-(CH2)5-CO3H or the
corresponding monoperacid, which can be obtained in a new crystalline form in the presence of sufficient surfactant. The invention process can be tailored to
produce particulate peracid derivatives of phenylenediamidoalkylenecarboxylic
acids having increased particle size, such as from 10 to 40ν. 主权项：
权 利 要 求 说 明 书
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Oppsamler for hundeekskrementer
