266 Creating a method for activating alkaline bentonite of Navbakhor to justify the local plant oils

This article offers an optimal method of activation f r industrial application of alkaline bentonite of Navbakhor and results of its testing.


INTRODUCTION
In Uzbekistan, the use of adsorbents, mainly imported from foreign currency, is used to justify plant oils. This leads to the increase in foreign exchange reserves and high oil and fat prices. That is why it is important to take bentonite on the basis of local raw materials. Laboratory experiments on adsorbents based on Navbakhor bentonite clay were carried out at the Scientific Research Laboratory of "Istiqbolli Tadqiqotlar", organized on the order of the rector of UrSU in March 2011.
In order to determine the optimal parameters of alkali and alkaline earth bentonite, the Navba specimens were measured at 100 grams on scale, with a maximum resolution of 2 different laboratory temperature units (interval 40° C) and a different time interval (1 hour interval) dried. Then experimental samples were examined in the specimens until adsorbent specimens wer the sorbent value of the impregnation rate of (10000 gallon/cm 2 ) at 0.5-50%.
The study of the influence of adsorbent on adsorbing properties of thermal activation was carried out at the central laboratory of OJSC "Urgench Oil @ IJTSRD | Available Online @ www.ijtsrd.com | Volume -2 | Issue -5 | Jul-Aug In Uzbekistan, the use of adsorbents, mainly imported from foreign currency, is used to justify plant oils. to the increase in foreign exchange reserves and high oil and fat prices. That is why it is important to take bentonite on the basis of local raw materials. Laboratory experiments on adsorbents based on Navbakhor bentonite clay were carried out at the entific Research Laboratory of "Istiqbolli Tadqiqotlar", organized on the order of the rector of In order to determine the optimal parameters of alkali and alkaline earth bentonite, the Navbakhor specimens were measured at 100 grams on a technical scale, with a maximum resolution of 2-3 cm at different laboratory temperature units (interval 40° C) and a different time interval (1 hour interval) dried. Then experimental samples were examined in the specimens until adsorbent specimens were applied to the sorbent value of the impregnation rate of № 0056 The study of the influence of adsorbent on adsorbing properties of thermal activation was carried out at the central laboratory of OJSC "Urgench Oil-OJSC", which was directly used to justify cotton oil, soybean and sunflower oil from plant oils due to innovative nature of the project.
Justification of cotton oil was carried out in a water bath by conventional methods [2] at 100 °C and stirring for 30 min. All test experiments conducted on the determination of the adsorbed sorbents were carried out in 10 liter samples of cotton oil, which was washed with water and after the drying step (initial color different) from the refining shop of Urgench Oil-OJSC . Table 1 below shows the results of the thermal activation in the samples taken from cotton oil, which is the initial color of 10 red units, on the alkaline and alkaline-earth benthonites of Navbakhor.

II. RESULTS AND DISCUSSION
Table1. Effect of thermal activation on the adsorbent properties of alkaline and alkaline Navbakhor Thermal activation time, Activation temperature

150 190
1% Alcoholic cotton oil color in the alkaline Navbakhor bentonite, red 1 9,8 9,5 9,0 2 9,5 9,2 8,5 3 9,6 9,1 8,5 4 9,5 9,0 8,5 Justification of cotton oil was carried out in a water bath by conventional methods [2] at 100 °C and ll test experiments conducted on the determination of the adsorbed sorbents were carried out in 10 liter samples of cotton oil, which was washed with water and after the drying step (initial color different) from the refining shop of Urgench Table 1 below shows the results of the thermal activation in the samples taken from cotton oil, which is the initial color of 10 red units, on the alkaline and earth benthonites of Navbakhor.

ND DISCUSSION
activation on the adsorbent properties of alkaline and alkaline-earth benthonites in Navbakhor Activation temperature, 0 С
Further research the Navbakhor alkaline bentonite activation method has been maintained at Navbakhor alkaline bentonite, which has the highest whiteness rate, drying time of 2 hours, and drying temperature of 190-210 0 C, which is thermally activated under optimal conditions. The residue remaining in the sieve was 0.5% in the range of 3600 g/cm 2, 6000 g/cm 2 and 10,000 gallon/cm 2 in order to compare the whiteness ratio of the first 10 cotton red oils tested. It was observed that the color of the cottonseed oil was up to 9.5 red units, 6000 gallon/cm 2 samples (1%), and the color of the cottonseed oil was reduced to 9.0 red units at 3600 s/cm 2 samples (1%).
Considering that the fractions of less than 0.001 mm have a high adsorbing ability [1] and that the fraction can increase the filtration time by 1.5 times, the residual dampness level of 10,000 gollon/cm 2 should remain 0.5 to 25% was adopted. Also, the effect of mixing the adsorbent and cotton oil at the constant temperature (100 0 C) on the samples of the alkaline bentonite of Navbakhor in thermally activated conditions under the optimal conditions was assessed on the degree of justification of the initial color cotton oil oil equal to 10 red units. The results are shown in Table 4 below. Color in red 8,9 8,5 8,6 8,9 9,1 The table above shows that the optimal mixing time is 30 minutes. In addition, the sample of the alkaline bentonite of Navbakhor under thermally activated conditions under various conditions was used to justify various oils at different times. The results obtained in Table 3 are summarized below. Table 3. Indicators of cotton lubricants produced by different seasons using the Navbakhor alkaline bentonite. As a result of numerous series tests, the level of neutralization of cotton oil with Navbakhor alkaline bentonite, activated by thermic activation, indicates that the degree of justification of the differentiation of cotton fiber, which is different from the original color, produced at different times.
It should be noted that the adsorbent obtained in the method described above has a good effect on the use of no more than 1% in the whitening of the relatively high initial fat content. At the same time reducing the amount of alkaline used for refining, the higher the degree of coloration (12 to 15 red units), and the reduced cost of whitening the vegetable oil by mixing this low cost adsorbent with high-quality adsorbents.
In addition, the adsorbent sample obtained from the thermal activation of the Navbakhor alkaline bentonite is difficult to cope with cotton oil (due to increased moisture and heat acidity, as well as the formation of new fertilizer additives in cotton seeds). Thus, in October 2011, it was pointed out that the yield of the samples taken from the new cotton seeds was higher than that of adsorbents (table 3). The 1% buster adsorbent was lowered to about $ 4.5 per pound of cotton in the first color, and the same color of cotton oil was paralleled by the adsorbent, It has been recorded that 3.5.

Conclusions
In summary, it can be said that the sorbent with enough adsorbent properties can be obtained by thermoactive activation of the alkaline bentonite of Navbakhor. However, the degree of justification of this sorbent for vegetable oils is slightly lower than that of traditional sorbents, which are treated with acid. However, this very cheap adsorbent, which can only be obtained by thermo-activation, checks the level of justification of vegetable oil at the factory laboratory, and gives high economical results, with good results and mixing with high-quality adsorbents in the required quantity. Based on this we find that it is not necessary to treat acids with alkaline bentonite in Navbakhor. Considering that the alkaline-earth benthonite activity in Navbakhor has a small increase in thermal treatment, it is desirable to use acids to increase its activity. IV.