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Sulfite waste liquor

The process described in the preceding subchapter may be considered obsolete as since the advent of industrial chromatographic separation, xylose can be obtained much more economically from sulfite waste liquor, which is an ideal starting material for the following [Pg.206]

A Finnish company named CULTOR has developed an industrial chromatographic separation of xylose from sulfite waste liquor, and based on this accomplishment, they now dominate the xylose market. As their process is proprietary, no details can be given, but the general scheme [Pg.206]


Sulfit, n. sulfite, -ablauge, /. sulfite waste liquor, -atze, /, sulfite discharge, -aus-lauger, m. Paper) sulfite digester, -cellulose, /, Paper) sulfite pulp, sulfitieren, v.i. sulfite. [Pg.436]

Antifoaming with Sulfite-Waste Liquor as Plasticizer for Cements... [Pg.282]

IX. Production of Alcohol from Sulfite Waste Liquor. 187... [Pg.154]

Because wood sugar solutions are sterile, they permit yeast to survive under conditions that are suitable for reuse of the yeast. This procedure is similar to that used in the fermentation of sulfite liquor at the Mechan-icsville. New York, plant as early as 1913 and in Swedish and German processes since that time. Yeast reuse has also been employed for sulfite waste liquor in Canada. ... [Pg.180]

The application of these organisms decreases the BOD (biological oxygen demand) of such solutions because of the utilization of the pentoses. When sulfite waste liquor is fermented in this manner, the BOD is reduced 34.3%. Scholler reports yields of mixtures of butyl alcohol, acetone, ethyl alcohol and fatty acids equivalent to 13 to 16%... [Pg.182]

In the growing of food yeast on wood sugar, one of the most difficult problems is that of foaming. This difficulty has been largely overcome by a fermenter designed for use in the production of yeast from sulfite waste liquor in the Waldhof plant at Mannheim. A modification of the fermenter was used for the continuous production of yeast on wood sugars in America. Fermentation periods of 2.6 to 3 hours were obtained with a strain of Torula utilis. Yields were 38 to 49% of the total sugar. [Pg.185]

IX. Production op Alcohol prom Sulfite Waste Liquor... [Pg.187]

In Sweden the production of alcohol increased from 8 million liters in 1934 to 23 million in 1936, 32 million in 1939 and 33 million in 1940. Sweden had 33 plants producing alcohol from sulfite waste liquor in 1940. Many improvements have been made with respect to yields and operating costs. [Pg.187]

Similar development has occurred in Germany.In 1943 it was reported that 250,000 hectoliters of alcohol were produced from sulfite waste liquor. The preferred method of fermentation was a continuous method in which the yeast was grown on chips or twigs and the neutralized sulfite waste liquor flowed through these chips. ... [Pg.187]

A plant for the fermentation of sulfite waste liquor in America was built at Mechanicsville, New York, by the West Virginia Pulp and Paper Company in 1914. The alcohol stills and some of the other equipment were imported from Germany and were considered the most modern at that time. In comparison to present American stills, these were very inefficient because they were wasteful of steam and did not recover all the alcohol. This plant reused the yeast from a previous fermentation for succeeding fermentations. The plant produced about 221,000 gallons of alcohol per year in 1919. In later years, because of the inefficiency of the alcohol stills with dilute alcohol solutions, molasses was added to the sulfite waste liquor to increase the alcohol content. The plant operated until 1939, when it was closed because of obsolescence. [Pg.187]

Vanillin is obtained from sulfite waste liquor by further alkaline hydrolysis of lignin. It is the same substance that can be obtained from vanilla bean extract and is the common flavoring in foods and drinks. Natural and synthetic vanillin can be distinguished from each other by a slight difference in the amount of 13C in their structure, since one is biosynthetic in the bean and the other is isolated from a second natural product, wood, by hydrolysis of the lignin. [Pg.554]

Fermentation of Sulfite Waste Liquor. The sulfurous acid used in the sulfite pulping liquor causes hydrolysis of the more easily hydrolyzable components of wood, especially the pentosans in the hemicellulose. About 35 percent of the potentially fermentable sugars in the wood are hydrolyzed. However,... [Pg.1279]

A large number of plants in Europe and a few in North America have been constructed to utilize the sugar hydrolyzate in sulfite waste liquors. The procedure as carried out in one American operation is as follows. [Pg.1279]

With the Howard process, 5-10 percent vanillin is produced, based on the lignin in the waste sulfite liquor. Some vanillin is produced from sulfite waste liquor in both the United States and Canada. [Pg.1290]

Nahum LS (1969) Estimation of double bond content in lignin from the results of the oxo reaction of wood and lignin model compounds Tappi 52 712-714 Pew JC, Connors WJ (1971) Color of coniferous lignin Tappi 54 245-251 Redinger L (1961) Alkali lignin, its condensation products with phenols, and preparation of curable resins Monatsber Dtsch Akad Wiss (Berl) 3 571-578 Richtzenhain H, van Hofe C (1939) A stilbene derivative from the sulfite waste liquor Chem Ber 72 1890-1892... [Pg.445]

Leonard, R.H., Peterson, W.H., Johnson, M.J. (1948) Lactic acid from fermentation of sulfite waste liquor. Ind. Eng. Chem. 40, 51-61. Leopold, A.C., van Schaik, R, Neal, M. (1960) Molecular structure and herbicide adsorption. Weeds 8, 48. [Pg.523]

One of the reasons why the pentose in calcium sulfite waste liquors is not being utilized for making furfural lies in the fact that the liquor from the digesters is actually super-... [Pg.65]


See other pages where Sulfite waste liquor is mentioned: [Pg.944]    [Pg.282]    [Pg.78]    [Pg.411]    [Pg.183]    [Pg.183]    [Pg.185]    [Pg.944]    [Pg.408]    [Pg.10]    [Pg.10]    [Pg.226]    [Pg.218]    [Pg.345]    [Pg.1290]    [Pg.1356]    [Pg.1357]    [Pg.58]    [Pg.322]    [Pg.44]    [Pg.388]    [Pg.206]   
See also in sourсe #XX -- [ Pg.247 ]




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Fermentation sulfite waste liquor

Liquor

Processes Starting with Sulfite Waste Liquor

Production of Alcohol from Sulfite Waste Liquor

Sulfite liquors

Sulfite waste liquor, yeast production from

VANILLIN PRODUCTION preparation from waste sulfite liquors

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