Dishwashing compositions comprising modified alkylbenzene
A technology of dishwashing detergent and composition, which is applied in the direction of organic washing composition, surface active detergent composition, detergent composition, etc., and can solve problems such as heavy experimental burden
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Embodiment 14
[0096] Example 14-methyl-4-nonanol, 5-methyl-5-decanol, 6-methyl-6-undecyl alcohol and 6-methyl-6-
[0097] mixture of dodecyl alcohols
[0098] (starting material for branched olefins)
[0099] A mixture of 4.65 g of 2-pentanone, 20.7 g of 2-hexanone, 51.0 g of 2-heptanone, 36.7 g of 2-octanone and 72.6 g of diethyl ether was added to the addition funnel, and then the ketone mixture was added dropwise to the reflux chamber over a period of 2.25 hours. Condenser and nitrogen blanketed 3-neck 2 L round bottom flask containing 600 mL of 2.0 M n-pentylmagnesium bromide in diethyl ether and the other 400 mL of diethyl ether. After the addition was complete, the reaction mixture was stirred at 20°C for an additional 2.5 hours. The reaction mixture was subsequently added to 1 kg of crushed ice with stirring, and 393.3 g of a 30% sulfuric acid solution were added to this mixture. The aqueous acidic layer was drained, the remainin...
Embodiment 2
[0101] Substantially monomethyl branched olefin mixture with randomized branching
[0102] Alkylating agent a) preparing the modified alkylbenzene of the present invention with the monomethyl branched chain alcohol mixture of 174.9g embodiment 1 and 35.8g shape selective zeolite catalyst (acidic mordenite catalyst Zeocat TM FM-8 / 25H) together into a nitrogen blanketed stirred 3 neck 500 mL flask equipped with a Dean Stark trap and reflux condenser. During mixing, the mixture was heated to about 110-155°C and water and some olefins were collected in the Dean Stark trap over a period of 4-5 hours. The conversion of the alcohol mixture of Example 1 to a substantially non-randomized mixture of methyl branched olefins was now complete and the reaction mixture was cooled to 20°C. The substantially non-randomized methyl branched olefin mixture remaining in the flask was filtered to remove the catalyst. The solid filter cake was washed twice with 100 ml portions of hexane...
Embodiment 3
[0103] Example 32 / substantially monomethyl with a 3-phenyl index of about 200 and a 2-methyl-2-phenyl index of about 0.005
[0104] branched chain alkylbenzene mixture
[0105] (modified alkylbenzene mixture according to the present invention)
[0106] 147 g of the randomly branched substantially monomethyl branched olefin mixture of Example 2 and 36 g of the shape selective zeolite catalyst (acid beta zeolite catalyst Zeocat TM PB / H) was added to a 2 gallon stainless steel stirred autoclave, the residual olefin and catalyst in the container were rinsed with 300ml of n-hexane and added to the autoclave, and the autoclave was sealed. From outside the autoclave unit, 2000 g of benzene (contained in a separate vessel, added via a separate pumping system within a separate autoclave unit) was fed into the autoclave. 250psigN for autoclave 2 Rinse 2 times, then add 60psigN 2 . The mixture was stirred, heated to about 200°C for about ...
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