The way to prevent the growth of sulfate reducing bacteria

 

The invention relates to petrochemistry and can be used to combat sulfatoxymelatonin bacteria (SRBs). For implementing the method use salts of tetraalkylammonium, representatives of which are chloride, mono-, di-, tri - and tetrametyl hexamethylentetramine salt exhibiting antimicrobial properties and extend the range of tools operating on a living organism, not inferior to the bactericidal activity of structural analogues. The source reagents for bactericides are produced by the domestic industry, available, cheap. The method provides a high degree of suppression of the growth of sulfate reducing bacteria. table 1.

The invention relates to combat sulfatoxymelatonin bacteria (SRBs), specifically to a series of tetraalkylammonium salts, representatives of which are chloride, mono-, di-, tri - and tetraallyloxyethane salt of the formula [(CH2)6N4R]+Cl-(1), [(CH2)6N4R2]2+Cl2-(2), [(CH2)6N4R3]3+Cl3-(3), [(CH2)6N4R4]4+Cl4-(4) where R=-(CH3)3possessing bactericidal activity is the processing of water, injected into oil reservoirs, as well as in other industries where it is necessary to inhibit the growth of sulfate reducing bacteria in various technological communications.

The closest structural analogues are derivatives of hexamethylenetetramine formula [AC USSR 1039891]where R and R1=N, CH3.

The aim of the present invention is to find new compounds exhibiting antimicrobial properties and extend the range of tools operating on a living organism, not inferior to the bactericidal activity of structural analogues.

The connection data is obtained by alkylation of hexamethylenetetramine in water byproduct production metallicgold - tertiary butyl chloride.

Example 1. 14 g (0.1 mol) of hexamethylenetetramine dissolved in 24.2 g of demineralized water with constant stirring, 10.2 g (of 0.11 mole) of tertiary butyl chloride. The reaction is carried out at atmospheric pressure for 2 h at 50oC. the resulting product is a 47,3% aqueous solution of a chloride salt of N-tertbutylacetophenone, i.e., the output amounted to 98.6%. The pour point of minus 15oC, boiling point 103oWith a density of d420= 1085 kg/m3.

For datastore isopropanol. The precipitated crystals were filtered off, washed with a fresh portion of isopropanol and dried in a vacuum drying Cabinet at a temperature of 60oC to constant weight. The obtained target product is a white powder with a decomposition temperature 192oC, molecular weight 232.5 m g/mol, is highly soluble in water, insoluble in organic solvents and oil.

Found, %: C 51,37; N 9,17; N 24,33; C1 15,13.

Calculated, %: C 51,61; N 9,03; N 24,09; C1 15,27.

The IR spectrum of this compound has absorption bands in the region 1350-1260 cm-1typical relations C-N absorption bands in the region 1455, 1420, 1385 cm-1characteristic deformation vibrations of methylene groups linked with electroanatomic nitrogen -(CH2)3-N+-C. the Presence tertbutylphenol group is characterized by absorption bands in the area 1255-1245 cm-1.

The data of elemental analysis and IR spectroscopy allow us to establish the structure of the obtained compound of the formula
Example 2. 14 g (0.1 mol) of hexamethylenetetramine dissolved in 33 g of demineralized water with constant stirring 18,96 g (0,205 mole) of tertiary butyl chloride. The reaction is carried out at atmospheric pressure within the hexamethylenetetramine, i.e. the output amounted to 98.2%. The pour point of minus 17oC, boiling point 103,5oWith a density of d420= 1110,4 kg/m3.

To prove the structure of the obtained target product was isolated in pure form by vicadine from aqueous isopropanol. The precipitated crystals were filtered off, washed with a fresh portion of isopropanol and dried in a vacuum drying Cabinet at a temperature of 60oC to constant weight. The obtained target product is a white powder with a decomposition temperature 208oC, molecular weight of 325 g/mol, is highly soluble in water, insoluble in organic solvents and oil.

Found, %: C 51,85; N 9,37; N 17,18; C1 21,60.

Calculated, %: C 51,69; N 9,23; N 17,23; C1 21,85.

The IR spectrum of this compound has absorption bands in the region 1340-1250 cm-1typical relations C-N absorption bands in the region 1455, 1420, 1385 cm-1characteristic deformation vibrations of methylene groups linked with electroanatomic nitrogen -(CH2)3-N+-C. the Presence tertbutylphenol group is characterized by absorption bands in the area 1255-1245 cm-1.

The data of elemental analysis and IR spectroscopy allow to set strateman dissolved in 42 g of demineralized water with constant stirring of 28.2 g (0,305 mole) of tertiary butyl chloride. The resulting product is a mixture of 49.6% aqueous solution of a chloride salt of N,N',N"-tetrachlorosalicylanilide, i.e., the output was 98,3%. The pour point of minus 20oC, boiling point 104oWith a density of d420= 1128 kg/m3.

To prove the structure of the obtained target product was isolated in pure form by vicadine from aqueous isopropanol. The precipitated crystals were filtered off, washed with a fresh portion of isopropanol and dried in a vacuum drying Cabinet at a temperature of 60oC to constant weight. The obtained target product is a white powder with a decomposition temperature 217oC, molecular weight 417,5 g/mol, is highly soluble in water, insoluble in organic solvents and oil.

Found, %: C 51,42; N 9,16; N Of 13.58; C1 25,84.

Calculated, %: C 51,74; S 9,34; N 13,41; C1 25,51.

The IR spectrum of this compound has absorption bands in the region 1350-1280 cm-1typical relations C-N absorption bands in the region 1455, 1420, 1385 cm-1characteristic deformation vibrations of methylene groups linked with electroanatomic nitrogen -(CH2)3-N+-C. the Presence tertbutylphenol group is characterized by bands of the o be catching structure of the obtained compound of the formula

Example 4. 14 g (0.1 mol) of hexamethylenetetramine dissolved in 51 g of demineralized water with constant stirring of 37.5 g of tertiary butyl chloride. The reaction is carried out at atmospheric pressure for 2 h at 50oC. the resulting product is a 49,7% aqueous solution of a chloride salt of N, N',N",N"'-tetratriacontane, i.e. the output was 97.3%. The pour point of minus 22oC, boiling point 105oWith a density of d420= 1140 kg/m3.

To prove the structure of the obtained target product was isolated in pure form by vicadine from aqueous isopropanol. The precipitated crystals were filtered off, washed with a fresh portion of isopropanol and dried in a vacuum drying Cabinet at a temperature of 60oC to constant weight. The obtained target product is a white powder with a decomposition temperature of 224oC, molecular weight of 510 g/mol, is highly soluble in water, insoluble in organic solvents and oil.

Found, %: C 51,81; N 9,43; N 11,05; C1 27,71.

Calculated, %: C 51,76; N 9,41; N 10,98; C1 Of 27.84.

The IR spectrum of this compound has absorption bands in the region 1350-1250 cm-12)3-N+-C. the Presence tertbutylphenol group is characterized by absorption bands in the area 1255-1245 cm-1.

The data of elemental analysis and IR spectroscopy allow us to establish the structure of the obtained compound of the formula

Evaluation of bactericidal activity of the proposed reagents is carried out by determining the degree of suppression of the SSC (%) by well-known methods of evaluation of the protective action of reagents that suppress microbial corrosion, using culture of sulfate reducing bacteria strain DS-2198. Commercial water containing sulfate-reducing bacteria, introducing a certain amount of the test reagent and incubated for 24 h at 32oC. Then 1 ml of these samples injected into a bottle with a nutrient medium of Postgate. Sample thermostatic when the 32oC for 15 days, and then determine the content of hydrogen sulfide. As a control, use the samples without addition of reagent.

Bactericidal activity is estimated by the degree of inhibition of growth of sulfate-reducing bacteria, which is calculated by the formula

where C1and C2the content of hydrogen sulfide, respectively, in a controlled and samples, mg/l

The experiments were repeated ditzy, we offer reagents provide a sufficiently high degree of suppression of the growth of sulfate reducing bacteria, not yielding to known structural analogues, expand the range of bactericidal drugs. Used for production of the source reagents are produced by the domestic industry, cheap and easily available. Tertiary butyl chloride is a waste product of metallicgold and, not finding further application is used for burning.

The technology of production and application of these products is simple, feasible production metallicgold without additional capital expenditure.


Claims

The way to prevent the growth of sulfate reducing bacteria (SRBs) in savedname oil reservoir, including the introduction of a reagent that suppresses the growth of sulfate-reducing bacteria, characterized in that the reagent is used as N-mono-, N,N'-di-N,N'-N"-three and N,N',N",N"'-tetratriacontane.

 

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