Lion Corporation

The Lion Corporation falling film monotube reactor with subsequent quench loop reactor... 

Lion Corporation. (1980). Dental cements. Nihon Kokai Tokkyo Koho 80,139,311. Chemical Abstracts, 94, 903,488b. 

Hoechst and Henkel first attempted ethoxylation of these materials in 1989 with alkali/alkali earth and aluminium hydroxycarbonates respectively but these catalyst activities were too low for commercial application [24, 25]. Vista, in 1990, patented [26] the use of activated calcium and aluminium alkoxides and Lion Corporation, in 1994, filed a patent using magnesium oxide [27]. There was a flurry of activity in the 1990s and Michael Cox and his co-workers have written most of the literature [28-30]. The proprietary catalysts are more expensive than those for standard alcohol ethoxylates and generally have to be removed from the final product. They are more reactive than the standard alkali catalysts with the result that the reaction proceeds faster and at lower temperature and uses less catalyst. 

Lion Corporation for fatty alcohols and amines had direct access to their main raw materials. 

In recent years, soap manufacture by an alternate route, the saponification of fatty methyl esters, has been under development, most notably in Japan (Lion Corporation) and Italy (Ballestra). The fatty methyl esters are obtained from the methanolysis of triglycerides inorganic alkali, quaternary ammonium salts, and enzymes (lipase) have been used as catalysts for methanolysis in commercially practiced processes... 

Lion Corporation of Japan developed a continuous transesterification process using unrefined feedstock known as the ES process. The free fatty acid in the oil is pre-esterified by passing the feedstock and methanol through a packed column of a special catalyst resin, after which transesterification is conducted through a two-stage reactor. A high conversion rate of more than 99% is claimed (16). 

Lion Corporation, 100 Tajitna, Odawara 256-0811, Japan Pharmaceutical Sciences, Showa University, Shinagawa-ku 142-8555, Japan Email matsu705 lion.co.jp... 

T. Okamoto, S. Uemura and I. Hamo, inventors Lion Corporation, assignee ... 

Lion Corporation TO reactor system Falling film reactor... 

Methyl ester ethoxylates (MEEs) are a new introduction to the stable of feedstocks which can be ethoxylated, and have only recently become commercially available (currently being produced and utilized in a detergent formulation in Japan by the Lion Corporation). Based on recent literature, however, a significant amount of effort is being focused on the development of MEEs for detergent applications. 

Hirofumi, N., Itsuo, H., Yuji, F. and Yuichi N., Method and manufacturing of fatty acid esters of polyoxyethylene alkyl ethers, US Patent 5374 750, to Lion Corporation (1994). 

Lion Corporation (Lion)/ Stepan Company (Stepan), and Chemithon Corporation (Chemithon) have patented technologies for manufacturing MES. MES is produced commercially using technology based on acid bleaching, which is described in this chapter—in Japan by Lion and in... 

The pioneer works of Hoechst [10], Qariant [11-14], Vista Chemical Company [15-19], and Lion Corporation [20] have demonstrated that the direct reaction between FAME and EO can be carried out when a new type of catalyst is nsed. More detailed stndies were described by Hama etal. [21-23]. 

Examination of the technical and patent literature shows that the development of the T-0 reactor has gone hand-in-hand with the establishment of an understanding of the process and mechanism of sulphonation of alpha-olefins. The reaction is very exothermic (AH = -210 kJ/gmole, approx. 30% more than that of alkylbenzenes) and virtually instantaneous. Lion Corporation were very active in the development of thin falling-film technology in the seventies, adding further refinements, which has made the large-scale production of AOS very attractive. The T-0 reactor is the result of their R D in this field and has been developed primarily for production of AOS. 

The principal research into a possible production organism and process is being conducted by two Japanese groups, one is Lion Corporation Ltd,... 

In the work sponsored by Suntory Ltd, Yamada et al, (1992) has used both the same organisms as the Lion Corporation group and also a soil isolate, Mort, alpina lS-4. The former mould has been grown to achieve the same yields as given before the latter organism was grown in a 200-1 fermenter yielding 22.5 g dry wt/1 after 10 days at 28°C. If these mycelia are then allowed to stand for a further 6 days at room temperature, the ARA content of the lipid fatty acids increased from 31% to 70%. About 50% of the ARA was in the polar and phospholipid fraction which itself accounted for 23% of the total lipid. The total lipid was about 40% of the biomass. 

Yukihiro Kaneko Material Science Research Center, Lion Corporation, Tokyo,Japan... 

TAKAMITSU TAMURA and YUKIHIRO KANEKO Lion Corporation, Tokyo, Japan... 

Shinya Kitoh Pharmaceutical Laboratories, Lion Corporation, Odawara, Kanagawa, Japan... 

The reaction is therefore characterized as a single-pass, short-reaction-time process. Different systems are used to form the film and to generate turbulence by the mixing of the two reactants during sulfonation. The best-known systems are the Stepan [49], Allied Chemical Corporation [50], and Chem-ithon reactors [51]. The reactor heads of the three systems are illustrated by Kapur et al. [46]. Lion Corporation modified these reactors in order to improve the reaction conditions. A dry-air stream is introduced between the diluted SO3 gas stream and the organic thin film so that the diffusion of the surfactant agent could be better controlled and a mild sulfonation reaction achieved [38]. 

The author would like to acknowledge Stepan Company for access to their data and the contributions of Marshall Nepras of Stepan Company and Teruhisa Satsuki of Lion Corporation. 

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