Removal of linear moieties from silicone rings

The last edit to this post was made by lotuscsx on 2021-11-25 at 09:45. The purification method for silicone mixed rings described in CN101376662A involves using polystyrene resin to adsorb small linear silicone molecules! 【Claims】: 1. A method for refining a silicone mixed ring structure, characterized in that its steps include: A. Resin pretreatment: 1) First, wash the resin with water to loosen and unfold the resin layer, and remove fine particles as well as small amounts of mechanical impurities from the resin ； 2) Drain the water, wash with ethanol to remove any residual organic substances in the resin, and finally wash with water ； 3) Use vacuum dehydration to remove some of the water ； B. Adsorption of impurities in the mixed ring: The impurities in the mixed ring are adsorbed in a tower filled with macroporous resin; the ratio of the resin filling height to the tower diameter is 2–6, with 4–6 being preferred, and the flow rate of the mixed ring is 100 ml/h to 2000 ml/h ； C. Resin regeneration: The organosilicon small-molecule linear compounds and hydrocarbon organic impurities adsorbed on the resin are eluted using toluene; then toluene and polar organic impurities are removed with ethanol; finally, ethanol and inorganic impurities are removed using deionized water, until the effluent contains no ethanol and the chloride ion concentration is below 0.5 ppm, at which point the regeneration is complete.

So, do you have any manufacturers in the resin industry?

Can loop separation not completely separate the loop body from the wire body?