Concentrated aqueous bromine solutions and their preparation
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-059/00
A01P-001/00
A01N-039/00
A01N-059/02
A01N-059/08
C02F-001/76
C02F-001/50
출원번호
US-0574592
(2005-09-07)
등록번호
US-9005671
(2015-04-14)
국제출원번호
PCT/US2005/032239
(2005-09-07)
§371/§102 date
20081028
(20081028)
국제공개번호
WO2006/029354
(2006-03-16)
발명자
/ 주소
Azarnia, Farah D.
출원인 / 주소
Albemarle Corporation
대리인 / 주소
Hoefling, Marcy M.
인용정보
피인용 횟수 :
0인용 특허 :
81
초록▼
This invention provides concentrated aqueous biocidal solutions formed from bromine chloride, sodium hydroxide, and sulfamic acid. The weight ratio of bromine chloride:sodium hydroxide:sulfamic acid used in forming the concentrated solution is such that for every 10.5 to 11.5 parts by weight of brom
This invention provides concentrated aqueous biocidal solutions formed from bromine chloride, sodium hydroxide, and sulfamic acid. The weight ratio of bromine chloride:sodium hydroxide:sulfamic acid used in forming the concentrated solution is such that for every 10.5 to 11.5 parts by weight of bromine chloride used, 15.3 to 17.5 parts by weight of sodium hydroxide and 11.0 to 12.5 parts by weight of sulfamic acid are used, the biocidal solution containing at least about 100,000 ppm (wt/wt) of active bromine based on the total weight of the solution.
대표청구항▼
1. A concentrated aqueous biocidal solution formed from bromine chloride, sodium hydroxide, and sulfamic acid wherein the weight ratio of bromine chloride:sodium hydroxide:sulfamic acid used in forming the concentrated solution is such that for every 10.5 to 11.5 parts by weight of bromine chloride
1. A concentrated aqueous biocidal solution formed from bromine chloride, sodium hydroxide, and sulfamic acid wherein the weight ratio of bromine chloride:sodium hydroxide:sulfamic acid used in forming the concentrated solution is such that for every 10.5 to 11.5 parts by weight of bromine chloride used, 15.3 to 17.5 parts by weight of sodium hydroxide and 11.0 to 12.5 parts by weight of sulfamic acid are used, said biocidal solution containing 100,000 ppm (wt/wt) or more of active bromine based on the total weight of said solution. 2. A solution as in claim 1 wherein said weight ratio is such that for every 10.5 to 11.5 parts by weight of bromine chloride used, 15.3 to 16.9 parts by weight of sodium hydroxide and 11.3 to 12.5 parts by weight of sulfamic acid are used. 3. A solution as in claim 1 wherein said weight ratio is such that for every 10.8 to 11.2 parts by weight of bromine chloride used, 16.1 to 16.8 parts by weight of sodium hydroxide and 11.6 to 11.9 parts by weight of sulfamic acid are used. 4. A solution as in claim 3 wherein said weight ratio is such that for every 11.0 parts by weight of bromine chloride, 16.1 parts by weight of sodium hydroxide and 11.9 parts by weight of sulfamic acid are used. 5. A solution as in claim 4 wherein said biocidal solution has a pH of 12 or more. 6. A solution as in claim 1 wherein said biocidal solution contains in the range of 145,000 to 160,000 ppm (wt/wt) of active bromine. 7. A solution as in claim 1 wherein at least a portion of the sodium hydroxide is used in the form of an aqueous solution. 8. A solution as in claim 1 wherein said biocidal solution has a pH of 10 or more. 9. A solution as in claim 1 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 175,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is 110,000 to 125,000 ppm (wt/wt),wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used, and wherein said solution has a pH in the range of about 12.4 to about 13.7. 10. A solution as in claim 9 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 169,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is 113,000 to 125,000 ppm (wt/wt),wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used. 11. A solution as in claim 9 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 108,000 to 112,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 161,000 to 168,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is 116,000 to 119,000 ppm (wt/wt),wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used. 12. A solution as in claim 11 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is nominally 110,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is nominally 161,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is nominally 119,000 ppm (wt/wt),wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used. 13. A solution as in claim 1 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 175,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is 110,000 to 125,000 ppm (wt/wt),wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used, and wherein said solution has a pH in the range of about 12.5 to about 14. 14. A solution as in claim 13 wherein said biocidal solution has a pH in the range of about 13 to about 14. 15. A solution as in claim 9 wherein said biocidal solution has 100,000 ppm (wt/wt) or more of active bromine based on the total weight of said solution. 16. A solution as in claim 9 wherein said biocidal solution contains in the range of 145,000 to 160,000 ppm (wt/wt) of active bromine based on the total weight of said solution. 17. A concentrated aqueous biocidal solution formed from bromine chloride, at least one alkali metal hydroxide, and sulfamic acid and/or an alkali metal sulfamate wherein the weight ratio of bromine chloride:alkali metal hydroxide:sulfamic acid used in forming the concentrated solution is such that for every 10.5 to 11.5 parts by weight of bromine chloride used, 15.3 to 17.5 parts by weight of sodium hydroxide and 11.0 to 12.5 parts by weight of sulfamic acid are used, said biocidal solution containing 100,000 ppm (wt/wt) or more of active bromine based on the total weight of said solution, wherein: (i) an equivalent amount of at least one other alkali metal hydroxide is used in place of at least a portion of the sodium hydroxide; or(ii) an equivalent amount of an alkali metal sulfamate is used in place of at least a portion of the sulfamic acid; or(iii) an equivalent amount of at least one other alkali metal hydroxide is used in place of at least a portion of the sodium hydroxide and an equivalent amount of an alkali metal sulfamate is used in place of at least a portion of the sulfamic acid. 18. A solution as in claim 17 wherein the alkali metal hydroxide is sodium hydroxide, potassium hydroxide, or both sodium hydroxide and potassium hydroxide. 19. A solution as in claim 17 wherein the alkali metal sulfamate is sodium sulfamate, potassium sulfamate, or both sodium sulfamate and potassium sulfamate. 20. A process of forming a concentrated aqueous biocidal solution which comprises mixing together in any subcombination(s) and in any sequence: a) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);b) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 175,000 ppm (wt/wt);c) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is about 110,000 to 125,000 ppm (wt/wt); andd) water,wherein the concentrations of a), b), and c) are each based on the total amount of a), b), c), and water used. 21. A process as in claim 20 wherein the amount in a) is an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt), wherein the amount in b) is an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 169,000 ppm (wt/wt), and wherein the amount in c) is an amount equivalent to a concentration of sulfamic acid that is 113,000 to 125,000 ppm (wt/wt). 22. A process as in claim 20 wherein the amount in a) is an amount equivalent to a concentration of bromine chloride that is 108,000 to 112,000 ppm (wt/wt), wherein the amount in b) is an amount equivalent to a concentration of sodium hydroxide that is 161,000 to 168,000 ppm (wt/wt), and wherein the amount in c) is an amount equivalent to a concentration of sulfamic acid that is 116,000 to 119,000 ppm (wt/wt). 23. A process as in claim 22 wherein the amount in a) is an amount equivalent to a concentration of bromine chloride that is nominally 110,000 ppm (wt/wt), wherein the amount in b) is an amount equivalent to a concentration of sodium hydroxide that is nominally 161,000 ppm (wt/wt), and wherein the amount in c) is an amount equivalent to a concentration of sulfamic acid that is nominally 119,000 ppm (wt/wt). 24. A process as in claim 20 wherein said mixing together forms a biocidal solution containing 100,000 ppm (wt/wt) or more of active bromine based on the total weight of said solution. 25. A solution as in claim 20 wherein said mixing together forms a biocidal solution containing in the range of 145,000 to 160,000 ppm (wt/wt) of active bromine based on the total weight of said solution. 26. A process of forming a concentrated aqueous biocidal solution which comprises mixing together in any subcombination(s) and in any sequence: a) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);b) an alkali metal hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 175,000 ppm (wt/wt);c) sulfamic acid and/or an alkali metal sulfamate in an amount equivalent to a concentration of sulfamic acid that is 110,000 to 125,000 ppm (wt/wt); andd) water,wherein the concentrations of a), b), and c) are each based on the total amount of a), b), c), and water used. 27. A process as in claim 26 wherein the alkali metal hydroxide is sodium hydroxide, potassium hydroxide, or both sodium hydroxide and potassium hydroxide. 28. A process as in claim 26 wherein the alkali metal sulfamate is sodium sulfamate, potassium sulfamate, or both sodium sulfamate and potassium sulfamate. 29. A solution as in claim 17 formed from water to which has been added: A) bromine chloride in an amount equivalent to a concentration of bromine chloride that is 105,000 to 115,000 ppm (wt/wt);B) sodium hydroxide in an amount equivalent to a concentration of sodium hydroxide that is 153,000 to 175,000 ppm (wt/wt); andC) sulfamic acid in an amount equivalent to a concentration of sulfamic acid that is 110,000 to 125,000 ppm (wt/wt),wherein:(i) an equivalent amount of one other alkali metal hydroxide is used in place of a portion of the sodium hydroxide; or(ii) an equivalent amount of an alkali metal sulfamate is used in place of at least a portion of the sulfamic acid; or(iii) an equivalent amount of one other alkali metal hydroxide is used in place of a portion of the sodium hydroxide and an equivalent amount of an alkali metal sulfamate is used in place of at least a portion of the sulfamic acid;wherein the concentrations of A), B), and C) are each based on the total amount of A), B), C), and water used. 30. A solution as in claim 29 wherein the alkali metal hydroxide is both sodium hydroxide and potassium hydroxide. 31. A solution as in claim 29 wherein the alkali metal sulfamate is sodium sulfamate, potassium sulfamate, or both sodium sulfamate and potassium sulfamate.
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