Industrial gases company Praxair, Inc., Danbury, CT, has agreed to sell its majority interest in Maxima Air Separation Center Ltd., Ramat Gan, Israel, to Discount Investment Corporation Ltd., one of Israel's largest holding companies, a part of the IDB Group.   ; DIC already holds an interest in Maxima.   ; Maxima has two air separation plants and had sales of $23 million in 2006. Following the sale, Maxima will continue to serve as a distributor of Praxair's products in Israel and will continue to have access to certain Praxair technology. Under the agreement, Maxima will be defined as a Praxair technology associate.   ; Praxair had 2006 sales of $8.3 billion. The company produces, sells and distributes atmospheric, process and specialty gases, and high-performance surface coatings.