Separation of different paraffin wax grades using two comparative deoiling techniques

Zaky, Magdy T.; Saber, Osama; Farag, Amal S.

doi:10.1016/j.fuproc.2007.04.011

Cited by 21 publications

(13 citation statements)

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“…Moreover, by testing the formulated blends (3)(4)(5)(6)(7)(8) and (9)(10)(11)(12)(13)(14), it can be concluded that all the formulated blends confirm the other specifications of petrolatum according to the definition of US Pharmacopoeia & National Formulary (Table 6). aromatics free wax is produced with lower congealing point than that of microcrystalline wax.…”

Section: Slop Wax Saturate and Light Paraffin Oil Blendsmentioning

confidence: 80%

“…Alexandria crude petrolatum was subjected to one stage fractional crystallization (deoiling process) [12][13][14] using butyl acetate (BA) solvent at fixed solvent feed ratio of 8:1 for dilution and 2:1 (S/F, by weight) for washing and at ambient fractionating temperature of 20 o C. In this technique, the high melting components of the wax (hard wax) got precipitated while the low melting ones (soft or slop wax) remained in the solution.…”

Section: Deoiling Processmentioning

confidence: 99%

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Raising the efficiency of petrolatum deoiling process by using non-polar modifier concentrates separated from paraffin wastes to produce different petroleum products

et al. 2015

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Deoiling of crude petrolatum was intensified by addition of 1 wt.% of non-polar modifier concentrates separated from slack wax waste and compared with pure n-alkane mixtures;(C 20 +C 22 ) and (C 24 +C 26 ). Data revealed that, 1 wt.% of the separated (C 20 +C 22 ) n-alkane mixture is selected as the preferable modifier to intensify and improve the deoiling process of crude petrolatum. X-ray diffraction patterns and SEM photographs observed that, the addition of 1 wt.% of non-polar modifier concentrates gave hard waxes having somewhat crystal growing and higher crystal sizes and possess more holes than the hard waxes separated without using a modifier. Different petroleum products were produced by using both the products of petrolatum deoiling process; the microcrystalline wax and the slop wax. Various grades of hardened ceresin were formulated by addition of low density poly ethylene with the separated microcrystalline wax. Fourteen formulated blends of petrolatum were prepared based on the microcrystalline wax and slop wax saturate with heavy and light paraffin oils, respectively. According to the standard specifications of US Pharmacopoeia and National Formulary of petrolatum and Ultra Chemical Inc. of liquid petrolatum, the blend formulations (3-8) are classified as technical petrolatums. Meanwhile, two of them (7 & 8) are classified also as liquid petrolatums. The blend formulations (9-14) are classified as white pharmaceutical petrolatums. Meanwhile, three of them (12-14) are also within the limits of standard specifications of ultrapure liquid petrolatums.

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Section: Slop Wax Saturate and Light Paraffin Oil Blendsmentioning

confidence: 80%

Section: Deoiling Processmentioning

confidence: 99%

Raising the efficiency of petrolatum deoiling process by using non-polar modifier concentrates separated from paraffin wastes to produce different petroleum products

et al. 2015

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“…The effect of solvent type on the physical characteristics and molecular type composition of the isolated hard waxes from heavy slack wax and crude petrolatum were studied under fixed solvent feed ratios for dilution and washing (6:1 and 2:1 by weight, respectively) and at ambient fractionating temperature of 20 8C (Zaky et al, 2007). The fractionating solvents used are butyl acetate, tertiary butyl acetate and cyclohexane solvents.…”

Section: Effect Of Solvent Typementioning

confidence: 99%

“…The study indicated that, fractional crystallization technique is more suitable; for deoiling the heavy slack wax than the percolation technique. While, percolation technology is a preferable technique for separation of paraffin waxes from light and middle slack waxes (Zaky et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on separation and characterization of high melting point macro- and micro-crystalline waxes

Zaky

Saber

2010

Journal of the Taiwan Institute of Chemical Engineers

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“…The study indicated that, fractional crystallization technique is more suitable for deoiling the heavy slack wax than the percolation technique. While, percolation technology is a preferable technique for separation of paraffin waxes from light and middle slack waxes [8].…”

Section: Introductionmentioning

confidence: 99%

Separation of some paraffin wax grades using solvent extraction technique

Zaky

Saber

Farag

2011

Fuel Processing Technology

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Separation of different paraffin wax grades using two comparative deoiling techniques

Cited by 21 publications

References 1 publication

Raising the efficiency of petrolatum deoiling process by using non-polar modifier concentrates separated from paraffin wastes to produce different petroleum products

Raising the efficiency of petrolatum deoiling process by using non-polar modifier concentrates separated from paraffin wastes to produce different petroleum products

Comparative study on separation and characterization of high melting point macro- and micro-crystalline waxes

Separation of some paraffin wax grades using solvent extraction technique

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