Method for producing plasticizers

Details Method for producing plasticizers Method for producing plasticizers

1980-03-25

1981-08-18

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 99, C07C 6748, C07C 6708

Patent

active

042847931

ABSTRACT:
A method for producing plasticizers which contain titanium in only a very small amount is provided. According to this method, the amount of waste water is very small. This method comprises reacting phthalic anhydride with an alcohol having 4-18 carbon atoms in the presence of, as a catalyst, a tetraalkyl titanate or a polymer thereof, and has a feature in the treatment of the resultant ester with a solid alkali and adsorbing agent(s) in the absence of water.

REFERENCES:
patent: 2131925 (1938-10-01), Ware
patent: 2805246 (1957-09-01), Bourguignon et al.
patent: 3056818 (1962-10-01), Werber
patent: 3293282 (1966-12-01), Farrar et al.
patent: 3717672 (1973-02-01), McGee
patent: 3818071 (1974-06-01), Chilton
patent: 4007218 (1977-02-01), Ghanayem

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