Technical white oil

There are two categories of white oils technical white oils and medicinal white oils. The technical white oils, which are already highly dearomatized, are used for specialized lubricants, particularly in the textile industry, and also as components in cosmetics, as plasticizers in the rubber or plastics industries, or as emulsion bases for certain pulverized agriculture products. The medicinal white oils, whose dearomatization is pushed further still, are used in pharmaceuticals, or in the food industry, wherever residual oils might be in contact with food. 

There is also a category of petroleum products known as white oil that generally falls into two classes (1) technical white oil, which is employed for cosmetics, textile lubrication, insecticide vehicles, and paper impregnation, and (2) pharmaceutical white oil, which may is employed medicinally (e.g., as a laxative) or for the lubrication of food-handling machinery. 

Process oils are not typical lubricants and are mostly used as processing aids in manufacture. They are generally additive-free mixtures of crude oil hydrocarbons and include products such as (i) medicinal white oils, (ii) technical white oils, (iii) bright process oils and (iv) dark process oils. Medicinal white oils are composed exclusively of isoparaffins and alkylnaphthenes. Technical white oils are less refined products than medicinal white oils and are composed of saturated hydrocarbons, though they may also contain a slight amount of aromatic compounds. Bright process oils include both yellow raffinates and brown distillates. Dark process oils are extracts from solvent refining of mineral base oils. 

These oils are used in the fibre and textile industries either to lubricate the textile machinery or as components of process oils used for the working of natural fibres, the production and processing of synthetic fibres or the finishing of intermediate or final products. Textile oils are often made from technical white oils and oxidation inhibitors plus agents ensuring removal of the oils by washing, even after a long... 

Technical white oils The Printing Industries of America 12/20/96 ... 

In the first method,freeze etching, a drop of solution is rapidly frozen by shock-cooling with liquid nitrogen. Solvent is then allowed to evaporate off from a freshly microtomed surface of the droplet. Finally a replica is made of collapsed micelles left proud of the frozen surface. In one report results are reported for four copolymers a poly sty rene-h/ocfc-polyisoprene copolymer, a (poly-styrene-h/ock-polyisoprene)4Si star copolymer and two polystyrene- ra/t-polyisoprene copolymers M , M /Mn and the wt % polystyrene contents for the unassociated copolymers were respectively (51000,1.12,25.2), (188 000,1.10,24.9), (550000,1.18,29.2) and (420000,1.22,38.1). Technical white oil, which is a selectively bad solvent for polystyrene, was used for the study. Within experimental error the micelles formed by the two block copolymers were monodisperse in size. The graft copolymer micelles on the other hand showed measurable size distributions. 

BRITOL technical white mineral oils have a broad variety of applications where a USP grade white mineral oils is not necess-... 

Standard SONNEBORN White Oils, Technical Grade SEMTOL 350 ... 

Mineral oil (white oil) colorless or very pale oils within the lubricating oil boiling range and viscosity that are used for medicinal (pharmaceutical) oils and technical purposes, the chief difference being degree of refining. 

Technical and Food Grade White Oils and Highly Refined Paraffins... 

U.S. FDA UV Absorbance Limits for Technical Grade White Oils... 

Source H. C. Moyer and M. K. Rausch, Duotreat Oils Hydrogenated Technical and Food Grade White Oils, Proceedings of the American Petroleum Institute, Division of Refining 49 863—876 (1969). 

Comparison of Duotreat Product with Technical Grade White Oil Specifications... 

E. F. Gallei and M. Schwarzmann, The BASF Process for Preparation of Technical and Food- or Medicinal-Grade White Oils by Catalytic Hydrogenation, presented at the Congress of Large Chemical Plants, Antwerpen, Holland, 1982. 

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