Abstract:
A lotion composition containing a microcrystalline wax, a fibrous structure containing such lotion composition and a method for making such fibrous structure and/or lotion composition are provided.
Abstract:
A process for producing one or more white oils, by: a) hydroisomerization dewaxing a waxy feed with a defined composition over a highly selective and active wax hydroisomerization catalyst with a defined composition under conditions sufficient to produce a white oil; and b) collecting one or more white oils, wherein the yield of white oils is high, and they have a low pour point and a good Saybolt color. Also, a process for producing medicinal grade white oils, by a)hydroisomerization dewaxing a waxy feed with a defined composition over a highly selective and active wax hydroisomerization catalyst with a defined composition under conditions sufficient to produce a white oil, b) collecting technical grade white oils having a low pour point and good Saybolt color in high yield, and c) hydrofinishing the technical grade white oils at conditions sufficient to produce medicinal grade white oils that pass the RCS test.
Abstract:
A method for producing lubricant base oils is provided comprising the steps of: (a) hydroisomerizing a feedstock over a medium pore size molecular sieve catalyst under hydroisomerization conditions to produce an isomerized product having a pour point of greater than a target pour point of the lubricant base oils; (b) separating the isomerized product into at least a light lubricant base oil having a pour point less than or equal to the target pour point of the lubricant base oils and a heavy fraction having a pour point of equal to or greater than the target pour point of the lubricant base oils and a cloud point greater than the target cloud point of the lubricant base oils; and (c) dehazing the heavy fraction to provide a heavy lubricant base oil having a pour point less than or equal to the target pour point of the lubricant base oils and a cloud point less than or equal to the target cloud point of the lubricant base oils.
Abstract:
A used investment casting wax composition containing a filler and/or a residue after a wax component is removed from the composition is dissolved or dispersed into an organic solvent. The mixture is separated into a dissolved wax fraction and a wax-containing solids fraction. The organic solvent in the dissolved wax fraction is removed to recover a wax component, while the wax component and the organic solvent in the wax-containing solids fraction are removed to recover a crude filler. The crude filler is washed with water and/or an aqueous alkaline solution to recover a high-purity filler. A reclaimed investment casting wax thus obtainable is less degraded by heat.
Abstract:
A process for catalytic hydrodewaxing hydrocarbon feedstocks is disclosed. The catalyst comprises a surface-modified crystalline aluminosilicate zeolite, such as ZSM-5 type zeolite in a matrix or binder, such as alumina, having a specified metals content. The process is especially useful for dewaxing lubricating oil basestocks.
Abstract:
Hot melt wax compositions and a process for producing said hot melt wax compositions are disclosed. The wax compositions are suitable for coating fibrous materials, for example, paper and corrugated paper boards. The coating compositions comprise a mixture of a fully refined paraffin wax, a petroleum wax selected from the group consisting of a recrystallized heavy intermediate wax, a microcrystalline wax and mixtures thereof, a polymeric hydrocarbon compound, a tackifier resin and optionally, a phenolic anti-oxidant.
Abstract:
Dewaxed oils can have their low temperature performance improved by the removal of residual wax by adsorption of said residual wax onto a hydrophobic molecular sieve. The wax-laden hydrophobic molecular sieve is regenerated by use of dewaxing solvents, such as ketones.The dewaxed oils, which have residual wax removed by the present invention, are oils which have been dewaxed by means of solvent dewaxing procedures or by catalytic dewaxing processes. These oils, produced by the combination of conventional-adsorptive trim dewaxing, exhibit superior formulated oils low temperature performance as compared to formulated oils made from oils dewaxed to the same pour point solely by conventional dewaxing by either solvent or catalytic processes practiced under severe conditions (deep dewaxing).
Abstract:
For separating wax particles and/or water droplets from a hydrocarbon mixture boiling in the lubricating oil range, net positive or net negative free excess electric charge is introduced, e.g. by a charge injector (44), into the wax/water-laden oil mixture. The oil is brought into contact with at least one collector surface, which can be provided by a bed of closely packed beads (33) in a separation vessel (6) or, for separating wax particles, a rotating collector drum (61). The introduced charge attaches itself to the wax particles/water droplets and at the same time causes an induced electric field to be set up within the oil mixture. The electrophoretic effect produced by the interaction between the charge and the induced field causes the wax/water to collect on the collector surface and accumulate there, for separation from the oil mixture.
Abstract:
Compositions comprise 70 to 95 weight per cent of petroleum wax and 30 to 5 weight per cent of a mixture comprising 25 to 75% by weight of an ethylene/propylene copolymer of molecular weight 20,000 to 5,000,000 and 75 to 25 weight per cent of a copolymer of ethylene with a C3- 5 ester of a saturated monocarboxylic acid and a terminally ethylenically unsaturated aliphatic alcohol or of a terminally ethylenically unsaturated monocarboxylic acid and a saturated aliphatic alcohol. Preferred copolymers are of ethylene with vinyl acetate, methyl acrylate or ethyl acrylate. The wax may be a paraffin or microcrystalline wax. The compositions may be used for melt coating paper and carton stock.ALSO:Compositions comprise 70 to 95 weight per cent of petroleum wax and 30 to 5 weight per cent of a mixture comprising 25 to 75 weight per cent of an ethylene/propylene copolymer of molecular weight 20,000 to 5,000,000 and 75 to 25 weight per cent of a copolymer of ethylene with a C3- 5 ester of a saturated monocarboxylic acid and a terminally ethylenically unsaturated aliphatic alcohol or of a terminally ethylenically unsaturated monocarboxylic acid and a saturated aliphatic alcohol. The wax may be a microcrystalline or paraffin wax obtained by dewaxing residual or distillate lubricating oil fractions respectively, or a plastic wax obtained by deoiling a soft wax fraction separated from paraffin wax. Preferred copolymers are of ethylene with vinyl acetate, methyl acrylate or ethyl acrylate. The compositions may be used for melt coating paper and carton stock.ALSO:Paper and carton board may be melt coated with compositions comprising 70 to 95 weight per cent of petroleum wax and 30 to 5 weight per cent of a mixture comprising 25 to 75 weight per cent of an ethylene/propylene copolymer of molecular weight 20,000 to 5,000,000 and 75 to 25 weight per cent of a copolymer of ethylene with a C3-5 ester of a saturated monocarboxylic acid and a terminally ethylenically unsaturated aliphatic alcohol or of a terminally ethylenically unsaturated monocarboxylic acid and a saturated aliphatic alcohol. Preferred copolymers are of ethylene with vinyl acetate, methyl acrylate or ethyl acrylate. The wax may be a paraffin or microcrystalline wax. In an example carton stock is coated with a composition comprising a blend of petroleum waxes, an ethylene/propylene copolymer and an ethylene/vinyl acetate copolymer.
Abstract:
In the separation of waxes from oils by flotation at a temperature below the cloud point the oil is cooled by withdrawing a stream, cooling it and recycling it in a ratio to fresh oil of at least 5:1. Other details are as described in Specification 1,022,429.