Reference

Purification of cane sugar fatty esters

Purification of cane sugar fatty esters. Ishitsuka, Tetsuo; Mizutani, Norio; Sasaki, Ichiro; Ito, Takamitsu; Ueno, Hiroshi; Nishizaki, Katsuichi (Daiichi Kogyo Seiyaku Co., Ltd., Japan). Japan. JP 53017575 B4 9 Jun 1978 Showa, 8 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: C07H013-06. APPLICATION: JP 70-116306 21 Dec 1970. DOCUMENT TYPE: Patent CA Section: 44 (Industrial Carbohydrates) Solns. of cane sugar fatty esters in water and org. solvents were purified by treating with acids or acidic salts to pH 3.5-5, extg. to transfer the esters to the org. layer, mixing with metal (valence >2) salts, and removing the double decompn. salts at pH >6. Thus, 100 parts mixt. contg. cane sugar stearate (I) [37318-31-3] 42, cane sugar 25, and Na oleate 30% was dissolved in 500 parts MeCOEt and 350 parts water at 55°, mixed with HCl to pH 4.5, and sepd., and the org. layer was mixed with 200 parts MeCOEt and 200 parts water, kept at 55°, mixed with 6 parts CaCl2, adjusted to pH 4.5-6 with aq. alkali, stirred for 30 min, filtered to remove the ppt., and concd. to give 97.5% I having purity 95.8%.

Defoaming composition

Defoaming composition. Fujii, Masahiko; Akimoto, Shinichi (Nippon Oils and Fats Co., Ltd., Japan). Japan. Kokai JP 52144387 1 Dec 1977 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B01D019-04. APPLICATION: JP 76-61068 28 May 1976. DOCUMENT TYPE: Patent CA Section: 44 (Industrial Carbohydrates) Compounding sorbitan fatty acid esters with propylene glycol (I) [57-55-6], siloxane, and polyol fatty acid esters gave the title product useful for molasses. Thus, foam vol. was 100 mL when air was passed through 100 g 10% aq. molasses soln. contg. 250 ppm defoaming agent of sorbitan monooleate (II) [1338-43-8] 61.0, sucrose stearate [37318-31-3] 2.0, glycerol monostereate [31566-31-1] 2.0, I 30, and siloxane 5.0% for 10-20 min., compared with 400 mL foam vol. with II only.