A Process for the Preparation of Emulsified Wax

Abstract

With the use of petroleum wax and oxidized petroleum wax as raw material and by appraising and screening emulsifier, the effects on stability of emulsifying wax such as emulsifier type, quantity, stirring speed, emulsifying time, and emulsifying temperature are discussed. The experiment results show that the mass ratio of petroleum wax and oxidized petroleum wax is 15–25%; the mass ratio of mixed emulsifier CC is 7–8%; and the best emulsifying process conditions are an emulsifying temperature of 90°C, an emulsifying time of 40 min, and a stirring speed of 700–1000 r/min. The emulsified wax obtained subsequently has better stability, dispersivity, and property.     

The Preparation of Wax Emulsions Stabilized by C5 Petroleum Resin

Wax emulsions were prepared by using paraffin wax and oxidized wax as raw materials, compound Wb-L as emulsifier, and C₅ petroleum resin as stabilizer. Its performance was studied. The results showed that when M _{C5 petroleum resin r}/M _{wax and oxidized wax} = 0.20, M _emulsifier/M _{wax and oxidized wax} = 0.50, M _water/M _{wax and oxidized wax} = 2.50, emulsifying time was 30 min, emulsifying temperature was 90–95°C, and stirring speed was 1,100 r/min, wax emulsions with good stability, dispersibility, and monodisperse particle size were obtained, giving a preservative solution in pencil board production.     

造纸用阳-非离子型石蜡乳液的制备

为提高非离子型石蜡乳液的覆盖性,先采用非离子型乳化剂吐温-60、司潘-60为主乳化剂乳化58#石蜡制备非离子型石蜡乳液,然后添加助乳化剂十六烷基三甲基溴化铵制备阳-非离子型石蜡乳液。利用单因素法考察了配方组成、乳化时间、乳化温度和搅拌速度对乳液的粒径大小及分布、分散性和稳定性等的影响,确定了水、58#石蜡、吐温-60、司潘-60、十六烷基三甲基溴化铵的最佳用量分别为乳液质量的69.8%,20.9%,6.3%,2.7%,0.3%,得到了最佳制备条件:乳化时间为20 min,乳化温度为95℃,搅拌速度为1300 r/min。该条件下制得的阳-非离子型石蜡乳液的平均粒径0.199μm、固含量31.86%等满足造纸用石蜡乳液的基本要求,可用于造纸工业。     

The Emulsification of Oxidized Wax With a Co/SBA-15 Catalyst

The mesoporous molecular sieve catalyst Co/SBA-15 was synthesized by two steps synthesis method, based on which oxidized wax was prepared. The emulsification of oxidized wax was carried out by employing Span-80, Tween-80, and stearic acid as compound emulsifier. The results showed that when the mass ratio of Span-80, Tween-80, and stearic acid was 5.5:3.6:0.9, emulsifying temperature was 75°C, emulsifying time was 55 min, emulsifier amount was 7.3%, and water consumption was 69.96%. The emulsion performance of oxidized wax was improved greatly compared with ordinary paraffins.     

皮革去污上光用乳化蜡的研制

采用石蜡、微晶蜡为主要原料 ,经实验选出了以水为稀释剂的乳化型皮革去污上光蜡。实验优化的配方为石蜡 12 .5 g ,微晶蜡 8.0 g ,硬脂酸 8.5g ,三乙醇胺 5 .5 g ,水量 70 (涂用 )或 130 g(喷用 )。反应条件为乳化时间 4 0min ,搅拌速度 5 0 0～ 70 0r/min ,乳化温度 90℃。制得上光剂产品的去污性能可与用去污剂单独处理的效果相当 ,亮度可达 6 6 .7。     

Emulsification of Modified Petroleum Waxes

The high stability emulsion of modified petroleum waxes, which has applications in many fields, such as rubber, leather, shoe, wood, paper, ink, and textiles, was prepared with the mixed emulsifiers comprising of nonionic surfactant and anionic surfactant. The experimental results showed that optimal conditions were: amount of the emulsifier 6-8%, emulsifying temperature 85-95°C, stirring velocity 1000-1400 r/min, emulsifying time 20-30 min.     

Emulsification of Modified Petroleum Waxes

Abstract

The high stability emulsion of modified petroleum waxes, which has applications in many fields, such as rubber, leather, shoe, wood, paper, ink, and textiles, was prepared with the mixed emulsifiers comprising of nonionic surfactant and anionic surfactant. The experimental results showed that optimal conditions were: amount of the emulsifier 6–8%, emulsifying temperature 85–95°C, stirring velocity 1000–1400 r/min, emulsifying time 20–30 min.     

HD-Ⅰ型微晶蜡乳化液的研制

以阴离子乳化剂 A、非离子表面活性剂 B和助表面活性剂 C对微晶蜡进行乳化 ,研制出稳定的 HD- 型微晶蜡乳化液。并用正交实验确定了该乳液的最佳配方 (质量分数 ) :微晶蜡为 5% ,阴离子乳化剂 A为0 .5% ,非离子表面活性剂 B为 1 % ,助表面活性剂 C为 1 %。确定的最佳乳化工艺条件为 :乳化温度大于 80℃ ,乳化时间大于 1 5min,搅拌速度 1 50 0～ 2 0 0 0 r/ mi     

石蜡微乳液影响因素的考察

石蜡微乳液是由58#石蜡、离子和非离子表面活性剂制备而成。影响石蜡微乳液粒径的因素有乳化剂用量、乳化温度、乳化时间、搅拌速度、pH值和助表面活性剂。实验结果表明：乳化温度在75-85℃时对石蜡微乳液的粒径影响不大;而其它因素对石蜡微乳液的粒径影响较大。制备石蜡微乳液的最佳工艺条件为：w（乳化剂）=6%,乳化温度为80℃,乳化时间为40min,pH为8,搅拌速度约600r/min,助表面活性剂为正戊醇。在此条件下,可以制备粒径为97nm、半透明的石蜡微乳液。     

浊度比法测定乳化蜡稳定性研究

以中国石油抚顺石油一厂生产的58号全精炼蜡为主要原料,SP-60、TW-80等为乳化剂,采用剂在油中法制得了乳化蜡。首次采用浊度比法对乳化蜡稳定性进行分析,并将其结果与室温静置法相比较。结果表明,用浊度比法判定乳化蜡的稳定性简单快捷、准确性高,具有很高的实用价值。通过浊度比方法考察了乳化温度、乳化时间、HLB值和乳化水用量四种工艺条件对石蜡乳液制备的影响。实验结果表明,制备乳化蜡的优化配方及工艺条件为：乳化温度70 ℃,乳化时间为50 min,复配乳化剂的HLB值为10,乳化水用量为75％。     

幼苗移栽抗旱保活用乳化蜡的研制

以水作为稀释剂,三乙醇胺等几种表面活性剂为乳化剂,石蜡为原料,制备了幼苗移栽抗旱保活用乳化蜡。通过优化得到最佳配方:乳化时间40 min,搅拌速度为500~700 r／min,w(石蜡)=1.4％~1.8％,w(微晶蜡)=0.5％~1％,w(硬脂酸)=0.5％~1.2％,w(三乙醇胺)=0.4％~0.7％时得到乳化蜡产物。经使用后可在幼株表面形成一层极薄的蜡膜,从而减少水分的蒸发而保证其成活率。可使幼苗成活率达98％以上。     

低熔点蜡微胶囊相变材料的研究

以尿素、甲醛、低熔点蜡为原料，采用原位聚合法制备微胶囊相变材料。采用SEM，DSC，FT-IR测试仪器分别测定微胶囊表面形态、热性能、化学成分；采用激光粒径分布仪测定微胶囊的平均粒径及粒径分布，讨论了微胶囊粒径的影响因素。实验结果表明，当尿素-甲醛预聚体与低熔点蜡质量比为2：1时，采用Span60和Tween60质量比为6∶4的复合乳化剂，在乳化搅拌速度13000r/min下乳化8min，缓慢分批加入NH4Cl催化剂，控制终点pH值为1.5~2.0，在60℃下反应4h，升温到90℃并恒温1h可以得到平均粒径20μm左右、粒径分布在10~30μm的球形微胶囊。DSC显示微胶囊熔点为35.14℃，潜热为104.19J/g。     

Improvement of Emulsified Automobile Polish Wax

Abstract

Modified paraffin wax instead of natural bee wax has been used in the modified research of the automobile polish wax formula. The influence of the quality fraction of self-prepared emulsifier and thickener, as well as the emulsified craft conditions such as emulsified temperature, emulsified time, and agitate speed, on the emulsified wax performance were investigated separately. The results indicated that with the paraffin wax and the modified paraffin wax as the raw material, the quality fraction of the compound emulsifier was 2.1 ~ 2.5 wt% and the quality fraction of the thickener was 2.9 ~ 3.4 wt% at the technical condition of the emulsified temperature 85°C, the emulsified time of 40 min, and the agitate speed of 1000 r/min. The emulsified wax product was the translucent and neutral white emulsion with the blue light. The product would still be stable when it is laid aside for more than 60 ds. This emulsified wax was the raw material for automobile polish wax, which contained paraffin wax and the modified paraffin wax at 15 ~ 20 wt%. The emulsified automobile polish wax was prepared by adding some other surface active agents, luminous agent, and other promoters. This product would allow for cleaning, polishing, and waxing at the same time and operate easily with good effects.     

高固含量石蜡纳米乳液的制备

以58#石蜡为原料,采用司潘-60和吐温-60为主乳化剂、油酸钾和吐温-80为助乳化剂制备了一种高固含量石蜡纳米乳液,利用单因素法研究了配方组成、乳化时间、乳化温度和搅拌转速对乳液粒径大小及其分布、乳液流动性和黏度的影响,并确定了适宜的制备条件.实验结果表明,高固含量石蜡纳米乳液的适宜制备条件为58#石蜡、乳化水、司潘...     

甲醇柴油乳液的黏度特性

在恒定温度20℃、乳化时间2 min、搅拌速率5×2800 r/min的条件下,考察了复配乳化剂质量分数、种类和黏度及甲醇质量分数对甲醇柴油乳液黏度的影响。结果表明,在本实验条件下,甲醇柴油乳液近似为牛顿流体,乳化剂的种类、质量分数及乳液中甲醇的质量分数对乳液的黏度特性具有显著的影响。对于组分相同的甲醇柴油乳液,其黏度随着乳化剂质量分数及其黏度的增加而增大;当其他组分一定时,其黏度随着甲醇质量分数的增加而增大;所制备的甲醇柴油乳液的黏度在2.7~5.6 mPa·s之间,符合国家燃油黏度标准。     

国内乳化蜡的研究及应用进展

介绍了乳化石蜡的类型及制备方法,讨论了乳化剂、乳化温度、乳化时间及搅拌速率对乳化蜡稳定性的影响;评述了乳化蜡在国内纺织工业、人造板工业、造纸工业、上光剂、农业及乳化炸药等行业的研究及应用进展;分析了国内乳化蜡的市场前景,指出中国发展乳化蜡的方向是实现产品的系列化和规模化。     

新型石油蜡类加氢精制催化剂FV-10的研制

介绍了新型石油蜡类加氢精制催化剂FV-10的研制、工业放大及原料适应性研究.结果表明,FV-10催化剂具有优良的活性和稳定性,对石蜡、高熔点石油蜡及微晶蜡等原料均具有良好的适应性,尤其在劣质石油蜡加氢精制过程中具有优良的活性,其总体性能明显优于目前工业应用的481-2B及FV-1催化剂.     

乳化蜡的研究及应用

介绍了乳化蜡的制备,讨论了乳化剂、乳化温度、搅拌速度和乳化时间对乳化蜡的性能影响。评述了乳化蜡在造纸、农业、上光剂和乳化炸药行业中的研究及应用;指出了国内乳化蜡的现状和未来发展方向。     

SBS改性乳化沥青储存稳定性研究

SBS改性乳化沥青具有环保、节能、高低温性能优良等特性,在高等级路面的维修与养护中发挥很大的作用。尽管SBS改性沥青有这些优点,但仍然存在难以乳化和不能长时间稳定储存的问题。通过考察制备SBS改性乳化沥青的乳化剂和工艺,研究了适于乳化SBS改性沥青的乳化剂配方,并分析了SBS改性乳化沥青物性与储存稳定性的关系。结果表明,胶体磨间隙不大于1.0 mm、胶体磨转速不小于2400r/min、乳化剂皂液pH值在2~4、改性沥青中SBS质量分数在3.0%~3.5%时,制备的改性乳化沥青储存稳定性较好。改性沥青颗粒粒径和乳液的恩氏黏度对改性乳化沥青储存稳定性影响明显,利用改性乳化沥青的物性(粒度、黏度)与储存稳定性的关系,调节工艺条件,能够得到储存稳定性好的改性乳化沥青。     

乳化蜡的制备工艺条件研究

以58^#全精炼蜡为原料制备乳化蜡,考察了乳化剂的种类及其亲水亲油平衡值（HLB）、乳化温度、乳化时间、乳化水用量等工艺条件对乳化蜡稳定性的影响。结果表明,乳化剂可选用SP-80／TW-80或SP-60／TW-802种复配乳化剂;当选用SP-60／TW-80复配乳化剂时,在乳化温度为65～90℃、乳化时间为30～60min、乳化剂的HLB值为8—12、乳化水用量为70％～75％的条件下,可得到稳定的乳化蜡乳液。