Engineering Case

T Carbopol

07/01/2019 0

Dispersion and Hydration of Carbopol®Carbopol®* is a water soluble vinyl polymer, used as an emulsifying, stabilising, suspending, thickening and gelling agent in many industries. Carbopol® is available in several different grades, which are widely used in manufacture of cosmetics and toiletries, including gels, creams and lotions, detergents, and air fresheners. The gelling effect is activated in two stages, firstly the dispersion and hydration of the Carbopol®, and secondly “neutralising” the solution by the addition of chemicals which increase the pH. Neutralising agents include triethanol...

SEPPIC_Vaccines_UK

07/01/2019 0

Emulsified Vaccines for Human or Animal HealthAdjuvants are substances which improve the immune response to the antigen used in vaccines. When added to an antigen (virus, bacteria, peptides, etc.), an adjuvant - especially an oily adjuvant - can improve the immune response. SEPPIC adjuvants from the MONTANIDE™ ISA range are ready-to-use oily products, each being specifically designed to be formulated for one type of emulsion (W/O, O/W, W/O/W). The types of adjuvant and emulsion to use are dependant on the targeted pathology and species. For pathologies like Foot and Mouth Disease (cattle, swi...

P Pharma Creams & Ointments

07/01/2019 0

Production of Pharmaceutical Creams & OintmentsPharmaceutical preparations for treatment of conditions such as rashes, skin irritation, stings, fungal infections etc. are normally supplied in the form of a cream or ointment as this provides an effective means of delivering the active ingredient directly to the required area. Products can be either a water in oil (w/o) or oil in water (o/w) emulsion, consisting of waxes, emollients and lubricants dispersed in an oil phase, and a water phase containing emulsifying, stabilising and thickening agents, preservatives and in some cases, colourant. A...

F Xanthan Gum

13/08/2018 0

Hydration of Xanthan GumXanthan gum (E415) is a polysaccharide widely used for its thickening and stabilising effect on emulsions and suspensions, especially in sauces and dressings. It is also used to control ice crystal formation in frozen desserts such as ice cream. The product forms a gel structure which is shear thinning and is often used in combination with other rheology modifiers, particularly Guar gum as the two combine to give greatly increased effects. The ProcessXanthan gum can be dispersed into hot or cold systems, and many grades are available, including some designed for easy d...

F Edible Oils

13/08/2018 0

Refining of Edible OilsEdible oils obtained from coconut, corn, cottonseed, olive, palm, peanut, soya bean and sunflower etc. contain gums and other impurities which are removed by degumming, neutralising and bleaching processes. The ProcessThe basic principle of these processes can be summarsed as follows: Degumming Neutralising Bleaching The wide range of oils processed by these methods leads to considerable variations in process requirements:Oils which tend to emulsify may be held in a vessel after mixing with the reagent to allow the emulsion to break before passing to the separator.In th...

The science behind scale-up

07/08/2018 0

One of Silverson Machines' unique selling points is the ability to scale up our mixing equipment from the laboratory to full scale production models. With over 70 years' practical experience in scaling up, we offer unrivalled know-how and expertise, and time and again, we have found scalability is a deciding factor when customers are looking to purchase a mixer.Many of our competitors sell production scale equipment but do not offer laboratory mixers, or conversely some offer high speed laboratory mixers that have no production equivalent. Silverson offers the largest range of capacities from ...

PE PUMPTHE PREMIUM ECONOMY PUMP

07/08/2018 0

PE PUMPTHE PREMIUM ECONOMY PUMP Remanufactured to NEW pump standards Highest quality, stocked for immediate shipment, cost efficient ONE YEAR FULL FACTORY WARRANTY PE Pumps are remanufactured with new parts, machined to new pump standards and each pump is fully tested before shipping. WARRANTYPE Pumps are identical to new pumps; cosmetically and functionally. The body, cover and gear case are machined and polished back to new specifications, and all other components are replaced with new parts. PE pumps cost 25% less than a comparable new pump. By reusing the body, cover and gear case, materia...