Continuous bleaching of alkylpolyglycosides

Details Continuous bleaching of alkylpolyglycosides Continuous bleaching of alkylpolyglycosides

1994-02-25

1995-07-11

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 111, 536 41, 536 186, 536127, C08B 3700, C07H 106, C07H 1504, C07H 1500

Patent

active

054322758

ABSTRACT:
A continuous method of bleaching an alkylpolyglycoside, substantially free of alcohol, with peroxy compounds, preferably hydrogen peroxide, which is highly efficient to provide an unexpected high degree of color reduction from a dark brown to a light, which product, from an extinction coefficient color respectively of about 10 to about 15 to about 0.025 to about 0.15. The bleaching is carried out at controlled pH and temperature, under pressure preferably in the presence of Mg. The use of a prebleached heel or feed prior to introduction of the unbleached material to be bleached results in a faster approach to equilibrium, steady state, bleaching conditions which results in minimum chemical usage and more rapid production of low color.

REFERENCES:
patent: 2235783 (1939-09-01), White
patent: 2356565 (1944-08-01), Chwala
patent: 2390507 (1945-12-01), Cantor
patent: 2422328 (1947-06-01), Young
patent: 3219656 (1965-11-01), Boettner
patent: 3375243 (1968-03-01), Nevin et al.
patent: 3450690 (1969-06-01), Gibbons et al.
patent: 3547828 (1970-12-01), Mansfield et al.
patent: 3598865 (1971-08-01), Lew
patent: 3640998 (1972-02-01), Mansfield et al.
patent: 3707535 (1972-12-01), Lew
patent: 3721633 (1973-03-01), Ranauto
patent: 3737426 (1973-06-01), Throckmorton et al.
patent: 3772269 (1973-11-01), Lew
patent: 3839318 (1974-10-01), Mansfield
patent: 3974138 (1976-08-01), Lew
patent: 4011389 (1977-03-01), Langdon
patent: 4223129 (1980-09-01), Roth et al.
patent: 4349669 (1982-09-01), Klahr et al.
patent: 4393203 (1983-07-01), Mao et al.
patent: 4472170 (1984-09-01), Hellyer
patent: 4483979 (1984-11-01), Mao
patent: 4510306 (1985-04-01), Langdon
patent: 4557729 (1985-12-01), McDaniel et al.
patent: 4597770 (1986-07-01), Forand et al.
patent: 4704453 (1987-11-01), Lorenz et al.
patent: 4713447 (1987-12-01), Letton
patent: 4904774 (1990-02-01), McDaniel et al.
patent: 4987225 (1991-01-01), Pickens et al.
patent: 4990605 (1991-02-01), Lueders
patent: 5266690 (1993-11-01), McCurry, Jr. et al.
Serial No. 07/914,363-filed Jul. 15, 1992.
Serial No. 07/774,430-filed Oct. 10, 1991.

Affiliated with

Also associated with

Rating

Continuous bleaching of alkylpolyglycosides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous bleaching of alkylpolyglycosides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous bleaching of alkylpolyglycosides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-504306