SU1209685A1 - Method of producing wetting agent for wool fabric - Google Patents

Description

The invention relates to methods for the preparation of a new chemical compound of the disodium salt of a sulpholimeic acid ester based on polyglycerol and synthetic fatty acids of the formula

s-soot

CH-COO (CH2HONSN20) LSE

where R CgH ,, is CijH ,, and p -5, which possesses the properties of a wetter of wool fabrics,

The purpose of the invention is to increase the wetting effect.

Example 1, Preparation of the disulphate of the sulfomaleic acid ester on the basis of synthetic fatty acids of fraction C, o-C, C and polyglycerol, which is a waste product of glycerol production.

The waste production of synthetic glycerol by the chlorine method - polyglycerin, has the following composition,%: polyglycerol 40; glycerin 2; NaOH 3; water the rest, 400 g of this solution is neutralized with gaseous HC1 to pH 6-7 and evaporated in the presence of 2% activated carbon to a water content of 28-30%. Then, at 70-80 s, it is quickly filtered from salt and coal and again evaporated under vacuum in current. Nitrogen is almost dry. 140 g of polyglycerol are obtained. The brown color obtained polyglycerol has the following composition (data of chromatographic analysis of their acetates),%: glycerin 5; diglycerol 66; triglycerol 9; tetraglycerol 15; pentaglycerin 5, the content of OH groups is 34%, (ebulioscopically in water) the content of NaCl is 0.6%, moisture 0.5%. To 100 g of polyglycerol, 96 g of synthetic fatty acids (FFA) of fraction С IP-С, -.,, Are added, the acid number is 280 ml KOH / g. Appearance - oily light yellow liquid., The esterification reaction takes 5-6 hours at 190-210 ° C to an acid number of 8-10. After that, the product is cooled to 40-45 ° C. Then 40 g of sulfomaleic anhydride and 50 are charged. ml of carbon tetrachloride in a three-necked flask, heated with stirring to 40-45 ° C and added from drops to 1 voroiki in 15 minutes 85 g of polyglycerol dissolved and 200 ml

carbon tetrachloride. Maintain the temperature for 65-70 seconds for 2 hours. The resulting brown reaction mixture is a solution

polyglyceride ester from SFA fraction, sulfomemaleic acid in carbon tetrachloride. The acid number of the substance (after evaporation of the solvent 208, yield 90%,

to the reaction mass is added

drops of 53 ml of a 30% aqueous solution of sodium hydroxide at 40-45 ° C, after which the product is bleached with 6 ml of a 10% solution of NaClO at 1 h. After cooling to 5-10 ° C, the paste is filtered and dried. Get a light brown solid product in the amount of software, the Output 88%,

Table 1 shows the physicochemical and colloidal properties of the obtained compound in comparison with the known disodium salt of monosulfur sulfomemaleic acid.

Compound wetting ability

I is determined by the time of immersion of a cylinder of a coil of woolly fabric

The test results are presented in Table 2;

From table 2, it can be seen that compound I has a higher wetting ability than the known substance.

I

Table

one

Disodium salt based on SLC fraction С, „- С ,, and

for l and glycerin - synthetic glycerol production waste

Disodium salt of sulfomeleic acid dodecyl ester

35 35.8 0.42

4.5 40.8 5.6

4Ш

According to the Rebinder method, CMC is the critical micelle concentration based on the surface tension isotherm.

Disodium salt based on FFA C, Q C fraction, and polyglycerols - synthetic glycerin production waste

Disodium salt

radicyl ester

sulphonaleic

acid.

Compiled by 0. Safonova Editor N. Jazola Tehred T. Tulik Proofreader A. Opuchar

461/33

Circulation 379 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PChT Patent, Uzhgorod, st. Project, 4

Claims (1)

METHOD FOR PRODUCING WOOLER TEXTILES WATER WATER by esterification of hydroxy derivatives with sulfomaleic anhydride with subsequent neutralization with sodium hydroxide of the resulting sulfomaleic acid esters, characterized in that, in order to increase the wetting effect of the target product, use the ₀ -based hydroxy derivative as the hydroxy derivative C and polyglycerol — synthetic production waste. glycerol, the esterification process is carried out at 65-70 ° C, and neutralization at 40-45 C. § ω >