Buscar
Itens para a visualização no momento 31-34 of 34
Aplicação de polieletrólitos para a separação de metais em efluentes da suinocultura
(Universidade Federal de Santa Maria, 2007-02-09)
The increase on swine livestock activity demands profitable resources and environmentally sustainable for the treatment, disposal and the residual water reuse. Due to the high wastewater volume, they have a huge pollutant ...
Estudo dos óleos voláteis de plantas medicinais da família Asteraceae do Rio Grande do Sul: Baccharidastrum triplinervium, Baccharis pentodonta, Pluchea sagittalis e Eupatorium buniifolium
(Universidade Federal de Santa Maria, 2007-07-26)
In this study four species were studied: Baccharidastrum triplinervium, Baccharis pentodonta, Pluchea sagittalis and Eupatorium buniifolium, all species belong to Asteraceae family. The essential oils of these four species ...
Síntese de ácidos 3-alcóxi-3-cianopropanóicos, ácidos 2-ciano tetraidrofuran(2h-piran)-3-óicos e sua aplicação na obtenção dos respectivos ácidos succinâmicos e succínicos
(Universidade Federal de Santa Maria, 2007-02-23)
This work presents the synthesis of a series of 3-alkoxy-3-cyanopropanoic acids and 2-cyanotetrahydrofuran(2H-pyran)-3-carboxylic acids of general formula HO2CCH(R2)CR1(OR)CN, where R/R2= Et/H, Et/Me, -(CH2)2-, -(CH2)3-, ...
Investigação dos efeitos estruturais de ligantes 1,3- diariltriazenidos simétricos orto-substituídos em complexos de mercúrio (II)
(Universidade Federal de Santa Maria, 2007-01-26)
This work was accomplished with the interest in the synthesis of ortosubstituted ligands, with special prominence to the moiety __CF3, __Br and __NO2 and later the complexação with Hg(II). The first obtained result was the ...