Chelating base product for use in water-based system treatments
A base product fluid is produced by adding anhydrous liquid ammonia and a first portion of sulfuric acid to water in a process line to form a mixed fluid. The mixed fluid may be cooled and a second portion of sulfuric acid may be added to the mixed fluid to form the base product fluid. The base product fluid may include a molecular compound that is a chelating compound. The molecular compound may have the formula: ((NH 4 ) 2 SO 4 ) a .(H 2 SO 4 ) b .(H 2 O) c .(NH 4 HSO 4 ) x . In the formula, a may be between 1 and 5, b may be between 1 and 5, c may be between 1 and 5, and x may be between 1 and 10.
1. A chelating compound
having the formula:
((NH 4 ) 2 SO 4 ) a .(H 2 SO 4 ) b .(H 2 O) c .(NH 4 HSO 4 ) x ;
wherein a is between 1 and 5, b is between 1 and 5, c is between 1 and 5, and x is between 1 and 10.
2. The chelating compound of claim 1 , wherein the chelating compound is crystalline.
3. The chelating compound of claim 1 , wherein the chelating compound is hydroscopic.
4. The chelating compound of claim 1 , wherein the chelating compound is capable of chelating a metal salt.
5. The chelating compound of claim 4 , wherein the metal salt comprises a salt of zinc, magnesium, manganese, selenium, molybdenum, iron, boron, cobalt, copper, or combinations thereof.
6. The chelating compound of claim 1 , wherein the chelating compound has a pH below about 2 when mixed with water.
7. The chelating compound of claim 1 , wherein a is 1, b is 1, c is 1, and x is between 1 and 6.
8. The chelating compound of claim 1 , wherein the nitrogen atoms in the chelating compound have an oxidation state of −3.
9. The chelating compound of claim 1 , wherein the sulfur atoms in the chelating compound have an oxidation state of +6.
10. A chelating compound
having the formula:
((NH 4 ) 2 SO 4 ) a .(H 2 SO 4 ) b .(H 2 O) c .(NH 4 HSO 4 ) x ;
wherein a is at least 1, b is at least 1, c is at least 1, and x is between 1 and 10; and
wherein the chelating compound comprises an elemental composition of:
between about 3% and about 6% hydrogen;
between about 10% and about 15% nitrogen;
between about 25% and about 30% sulfur; and
between about 52% and about 60% oxygen.
11. The chelating compound of claim 10 , wherein the chelating compound is crystalline.
12. The chelating compound of claim 10 , wherein a is between 1 and 5, b is between 1 and 5, c is between 1 and 5, and x is between 1 and 10.
13. The chelating compound of claim 10 , wherein the chelating compound is hydroscopic.
14. The chelating compound of claim 10 , wherein the chelating compound is capable of chelating a metal salt.
15. The chelating compound of claim 14 , wherein the metal salt comprises a salt of zinc, magnesium, manganese, selenium, molybdenum, iron, boron, cobalt, copper, or combinations thereof.
16. The chelating compound of claim 10 , wherein the chelating compound has a pH below about 2 when mixed with water.
17. The chelating compound of claim 10 , wherein a is 1, b is 1, c is 1, and x is between 1 and 6.
18. The chelating compound of claim 10 , wherein the nitrogen atoms in the molecule have an oxidation state of −3.
19. The chelating compound of claim 10 , wherein the sulfur atoms in the molecule have an oxidation state of +6.
20. A chelating compound
having the formula:
((NH 4 ) 2 SO 4 ) a .(H 2 SO 4 ) b .(H 2 O) c .(NH 4 HSO 4 ) x ;
wherein a is at least 1, b is at least 1, c is at least 1, and x is between 1 and 10; and
wherein the chelating compound has a pH below about 2 when mixed with water.
21. A chelating fluid, comprising:
a plurality of chelating compounds in a water solution, the chelating compounds having the formula:
((NH 4 ) 2 SO 4 ) a .(H 2 SO 4 ) b .(H 2 O) c .(NH 4 HSO 4 ) x ;
wherein a varies between 1 and 5 in the plurality of chelating compounds, b varies between 1 and 5 in the plurality of chelating compounds, c varies between 1 and 5 in the plurality of chelating compounds, and x varies between 1 and 10 in the plurality of chelating compounds.
22. The chelating fluid of claim 21 , wherein the chelating compounds are crystalline.
23. The chelating fluid of claim 21 , wherein the chelating compounds are hydroscopic.
24. The chelating fluid of claim 21 , wherein the chelating fluid is capable of chelating metal salts.
25. The chelating fluid of claim 24 , wherein the metal salt comprises a salt of zinc, magnesium, manganese, selenium, molybdenum, iron, boron, cobalt, copper, or combinations thereof.
26. The chelating fluid of claim 21 , wherein the chelating fluid has a pH below about 2.
27. The chelating fluid of claim 21 , wherein a is 1, b is 1, c is 1, and x is between 1 and 6.
28. The chelating fluid of claim 21 , wherein the nitrogen atoms in the chelating compounds have an oxidation state of −3.
29. The chelating fluid of claim 21 , wherein the sulfur atoms in the chelating compounds have an oxidation state of +6.