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Kondycjonery glebowe

100%

Moniuszko H.

1998

tom nr 1

33-35

Soli makes one of the most important elements of the natural environment. The author of the article discusses one of the methods aiming at the protection of soil against negative effect of the cultivation intensification as well as at the increase of the quantity and quality of crops. The method consist in the application of synthetic agents improving soil fertility called soil conditioners.

Synthesis and properties of new ion exchangers to sorption and separation of rhenium

100%

Smolińska K. , Jermakowicz-Bartkowiak D.

2009

tom Vol. 53, nr 2

181-186

Vinylbenzyl chloride/divinylbcnzenc gel copolymer beads has been modified using: 1-(2-aminocthyl)piperazinc, hexahydro-l,4-diazepine, 6-aminouracyl and 1-methylpiperazine to obtain five ion exchangers. Traditional heating of the polymer with amine solution in an appropriate amount of N, N-dimethylformamide was employed in this study. A resin with the group l-(2-aminoethyl)piperazine has been modified additionally at the room temperature. All resins were used in removal of metal ions (especially Re, Pd, Pt, Au) from 0.1 M HC1 solution. The influence of others ions of metal on rhenium, presents as ReO/. sorption from appropriate solution, was studied. For the resin with hexahydro-1,4-diazepine groups sorption of Re04' was the highest in comparison to the others resins from single solution. The sorption of rhenium for the resin with the hexahydro-1,4-diazepine group from multicomponent solution (Re, Au, Pd, Pt) in 0.1 M HC1 was equal to 42 mg Re/g.

Chromatograficzne badania nad rozdzielaniem mieszanin chlorowcopochodnych fenolu

84%

Maslowska J.

Zeszyty Naukowe Politechniki Łódzkiej. Technologia i Chemia Spożywcza

1996

tom 56

5-18

Removal of ammonia from air by fibrous ion exchangers

84%

Wasąg H. , Pawłowski L. , Soldatov V. , Kosandrovich E.

2009

tom Vol. 35, nr 3

293-304

The paper presents the results of laboratory studies of ammonia sorption from air by fibrous ionexchange materials containing acidic groups in concentration of 3-5 mmoles per gram as a function of the ammonia concentration (3-30 ppm), relative air humidity, air flow rate and the thickness of filtering layer. It follows from our experiments that non-woven fabrics with the thickness of above 2 mm and surface density of -0.3 kg m(-2) can efficiently reduce ammonia concentration in air to <1 ppm at flow rates of <0.2 m s-1. The sorbent can be regenerated with acid solution to obtain salts that can be used as mineral fertilizers.

Kondycjonery glebowe

67%

Moniuszko H.

Ekoinżynieria

1998

nr 01

33-35

Jony wapnia w regulacji skurczu miesnia sercowego

67%

Wrzosek A.

Kosmos

1997

tom 46

nr 1

25-32