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Water is separated from the first overhead stream, and the resulting isobutylene-enriched stream is recycled back to the reaction step. The first bottoms stream is distilled to produce a bottoms product stream comprising diisobutylene and a second overhead stream comprising tertiary butyl alcohol and diisobutylene.he reaction product stream, comprising diisobutylene, isobutylene, TBA, and water, is purified by a process a shown in. . The reaction product stream is passed via line 11 to a first distillation tower 10. Tower 10 contains 35 ideal stages, 11 above feed and 24 below feed.
Glass Facts. 1  Glass is 100% recyclable and can be recycled endlessly without loss in quality or purity. 2  Glass is made from readily-available domestic materials, such as sand, soda ash, limestone and âcullet,â the industry term for furnace-ready recycled glass. Glass is 100% recyclable and can be recycled endlessly without loss in quality or purity. 2  Glass is made from readily-available domestic materials, such as sand, soda ash, limestone and âcullet,â the industry term for furnace-ready recycled glass. 3  The only material used in greater volumes than cullet is sand.