Lanolin Dm is the item of extracting and also refining the secreted wool oil that adheres to wool. The amount of lanolin attached to the lanolin worldwide is more than 250,000 tons each year, however the approximated amount in fact recouped is only around 20,000 loads. Lanolin is extracted as well as fine-tuned through eight actions of resources therapy, extraction, precipitation, dissipation, acid therapy, neutralization, decolorization, distillation and contamination elimination. The majority of the parts of the refined foot are lanolinic acid, which is most appropriate for numerous anti-rust soaps, which are used for anti-rust on metal surface areas. Its anti-rust performance is stronger than that of oil sulfonated salts.
Making use of combing sewer as basic material
Preparation of Lanolin Dm Crude Woollen Laundering Sewage Include light weight aluminum trichloride to get lanolin-containing slush, soak up water to acquire slush. Take 600kg of sludge, add 480kg of benzene, mix while adding, heat at 56 ° C for 1 hour, stop mixing, speed up for 1 hour, and also after clarification, the benzene remedy liquifies 6% -40% of lanolin, relocate right into a purification tower, and heats up and also distills until it contains Lanolin Dm. 34%, cooled to below 40 ℃ and launched to obtain crude lanolin
Wool combing sewage [AlCl3] → Sludge [benzene, 30 ℃] → crude lanolin.
Preparation of Neutralized Phenyl Fat: 2100kg of Lanolin Dm unrefined item was put into the reaction pot, warmed to 50 ° C, after that hot regarding 50% (g/g) sulfuric acid option was contributed to the crude lanolin product, stirred for 45min, precipitated for half a hr, and launched the foot, Add light ethanol to the benzene lipid layer, add water, warmth and keep at 60 ° C, stir for half an hour, go for half a hr, release the foot, and obtain acid-treated benzene resin. Take acid-treated benzene resin and also add 180kg of ethanol, slowly include about 70kg of 300g/L salt hydroxide solution, change pH to 9, include 180kg of water, keep the temperature at 60 ° C, maintain mixing from the time of including ethanol to the end of adding water, proceed mixing for 10min, as well as let stand, Precipitate for 1h, launch the foot, include light ethanol to the benzene lipid layer, mix, precipitate for 1h, release the foot, as well as neutralize the benzene resin.
Lanolin Dm unrefined item [sulfuric acid, water] → [light ethanol] acid therapy of phenyl ester [60 ℃, ethanol] → [NaOH, WATER] to counteract phenyl ester
Preparation of finished medicinal lanolin: Take neutralized benzene resin, add 24 kg of 3.8% hydrogen peroxide, mix, keep the temperature level at 60 ° C, precipitate for 35 min, release the lower leg, maintain the pH at 8-9, include light ethanol, speed up for 2 h, release the reduced leg, and also acquire a polished product Phenyl esters. Distillation, vacuum dissipation at a liquid temperature level of 110 ° C until no more steaming, cool to 60 ° C, add ethanol, stir, precipitate for 1 h, different the reduced layer of lanolin, add ethanol, warm and also mix for 10 minutes, throw out the ethanol, and evaporate the ethanol under decreased pressure. Filtering with silk towel to obtain medicinal Lanolin Dm ended up item.
Reduce the effects of benzene material [H2O2, ethanol, 60 ° C] → fine-tuned benzene material [ethanol, 110 ° C] → finished product of lanolin.