SU1223992A1 - Method of processing sorbent - Google Patents

Description

The invention relates to a method for treating a sorbent and can be used; and 1 purifying wastewater, gases and liquid organic solutions from impurities.

The aim of the invention is to increase the din of the total capacity of the sorbent.

The method is carried out as follows.

The ion exchange resin is loaded into a sieve column and poured with ethylbenzene production alkyl.

The treatment of the ion exchanger lasts 40–48 hours. Then the solution is drained, the ion exchanger is washed with water and it is ready for use in cycles of adsorption-regeneration of impurities from wastewater, gases, organic solutions.

The mixture of AP-3 activated carbon with the AB-I1 ion-exchange resin is 1: 2 ratio and the weight is processed as follows. Sewage water containing, mg / l: Ni 100,, Cl 260, is passed through a column containing 5 g of sorbent at a rate of 40 ml / min. Purification from the listed ions 100%. Experience lead to the leakage of ions at the outlet of the column. Dynamic capacity for nickel PO mg / g (3.75 mg-e / g);

Alkylation process off-gas containing 0.4-1.5% chloris1 .7

9.5 6.6

2 3

5 10

24 36

40

48 60

five

In addition, hydrogen is passed through a 16 mm column with 25 g of a treated KU 2-8 hationite. The gas transmission rate is 10-20 l / h. The degree of gas purification from HCI 100%. Experience lead to breakthrough HCJ at the outlet of the column. Dynamic e ": cation exchanger 2.5,

In the control column load a portion of the cation exchange resin, processed according to the prototype. The dynamic capacity of the sorbent was P mg-e / g.

The product of the reaction of alkylation of ethylbenzene production, containing 0.5-1 g / l A1Cl, is passed through a 10 mm column with 0.8 g of the cation exchanger KU-2-8 prepared by this method at a rate of 100 ml / h. The degree of purification of the alkylation reaction product from the catalyst (aluminum chloride) is 100%. The adsorption process is carried out until the occurrence of A1, SG and H 5 ions in the liquid to be purified. The dynamic capacity of the cation exchanger was 15 mg-e / g, whereas the dynamic capacity of the cation exchanger treated by a known method is 7 mg-3 / g.

Comparative data of the dynamic capacity of sorbents, processed by the known and proposed methods, are given in tab.

0

0

2.5

10.8 7.5

3 1223992t

As follows from the table, the time in about-TaKiiM way, the dynamics of the treatment less than 40 hours does not provide the capacity of the ion-exchange resin, the rate of the maximum dynamic capacity of the proposed type of nickel, aluminum ions, water mode, increases by compared with chlorine , and for more than 48 hours it does not lead to a 5 in a known manner to further increase the capacity. 2 times.

Claims (2)

1. METHOD OF SORBENT TREATMENT based on ion-exchange resins synthesized from styrene and divinylbenzene, or mixtures of these resins with activated carbon by a chemical reagent, characterized in that, in order to increase the dynamic capacity of the sorbent, a benzene alkylation reaction with olefins is used as a chemical reagent . 2. The method of pop. 1, characterized in that the reaction product of the alkylation of benzene with olefins has the following composition, wt.%: Benzene 16-50 Ethylbenzene 28-56 Diethylben angry ’2-25 Isopropylbenzene and lalkylben S € ash Rest ω from h * 4w> yoo Q0 so co ba> I 223992