应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2014年
5期
890-893
,共4页
石蜡%氧化%酸值%皂化值
石蠟%氧化%痠值%皂化值
석사%양화%산치%조화치
paraffin wax%oxidation%acid value%saponification value
以石蜡为主要原料,加入一定量的微晶蜡,采用纯氧气进行催化氧化改性,考察了反应温度、反应时间、氧气流速、催化剂用量、助剂用量等因素对氧化蜡性质的影响。结果表明,氧化蜡的结构中出现羰基官能团;在以质量分数为0.52%的硫酸锰为催化剂,质量分数为12%的硬脂酸为助剂,氧气流速为75~85 mL/ min,150℃条件下4 h,可以得到色泽浅、气味轻、酸值为23.44 mg KOH/ g,皂化值为49.13 mg KOH/ g 的优质氧化蜡。
以石蠟為主要原料,加入一定量的微晶蠟,採用純氧氣進行催化氧化改性,攷察瞭反應溫度、反應時間、氧氣流速、催化劑用量、助劑用量等因素對氧化蠟性質的影響。結果錶明,氧化蠟的結構中齣現羰基官能糰;在以質量分數為0.52%的硫痠錳為催化劑,質量分數為12%的硬脂痠為助劑,氧氣流速為75~85 mL/ min,150℃條件下4 h,可以得到色澤淺、氣味輕、痠值為23.44 mg KOH/ g,皂化值為49.13 mg KOH/ g 的優質氧化蠟。
이석사위주요원료,가입일정량적미정사,채용순양기진행최화양화개성,고찰료반응온도、반응시간、양기류속、최화제용량、조제용량등인소대양화사성질적영향。결과표명,양화사적결구중출현탄기관능단;재이질량분수위0.52%적류산맹위최화제,질량분수위12%적경지산위조제,양기류속위75~85 mL/ min,150℃조건하4 h,가이득도색택천、기미경、산치위23.44 mg KOH/ g,조화치위49.13 mg KOH/ g 적우질양화사。
Paraffin wax as the main raw material,added with a certain amount of microcrystalline wax,is oxidized and modified with pure oxygen. The effect of reaction temperature,reaction time,oxygen flow rate,and the amount of catalyst and assistant on the properties of oxidized are studied. The results show that carbonyl group appears in the structure of oxidized wax. The high quality of oxidized wax with light color,less smell,high acid value of 23. 44 mg KOH/ g and high saponification value of 49. 13 mg KOH/ g can be obtained with 0. 52% manganese sulfate as catalyst and 12% stearic acid as auxiliary in the con-dition of oxygen flow rate of 75 ~ 85 mL/ min and 150 ℃ for 4 h.