English — Forum #115 (Page 7/11)

1. Let’s share the maximum number of consecutive days in operation for each sulfuric acid plant - HCBBS Forum
2. Production of vinyl acetate by the gas-phase oxidation of ethylene - HCBBS Forum
3. Magnesium nitrate dilute solution has a high nitrate content - HCBBS Forum
4. Why are the leakage points in dry acid coolers always located at the outlet? - HCBBS Forum
5. Prerequisites for the long-term stable operation of sulfuric acid production plants - HCBBS Forum
6. Looking for recommendations for design firms for phosphorus chemical projects - HCBBS Forum
7. For a drying tower with a diameter of 6.2 meters, determine how many acid distribution holes per square meter are required for the acid distributor. - HCBBS Forum
8. Carbon disulfide manufacturing enterprises - HCBBS Forum
9. Chemical Industry Corrosion Protection Platform - HCBBS Forum
10. What are the industrial uses of 55-60% sulfuric acid? - HCBBS Forum
11. The issue of removing arsenic trioxide when distilling sulfuric acid to produce reagent-grade sulfuric acid - HCBBS Forum
12. Seek advice on the concentration of pure dilute sulfuric acid - HCBBS Forum
13. A 250kt/a phosphogypsum treatment project has been established in the Yianan Aerospace Power Materials Industrial Park in Yichang - HCBBS Forum
14. Why is the intake temperature for the second suction higher than that for the first suction? - HCBBS Forum
15. Anode protection technology in sulfuric acid equipment - HCBBS Forum
16. Everyone! What kind of water can be added to the mixer of the low-temperature waste heat recovery device? - HCBBS Forum
17. How do sulfuric acid plants manage the issue of short lamp lifespans? - HCBBS Forum
18. Is liquid sulfur trioxide available in small steel cylinders for laboratory use? - HCBBS Forum
19. Request for relevant standards related to the acid production section - HCBBS Forum
20. Approaches to the upgrading and transformation of sulfuric acid plants - HCBBS Forum
21. sulfuric acid exhaust gas - HCBBS Forum
22. Liquid sulfur trioxide unloading process - HCBBS Forum
23. Recommendations for equipment for the design and production of liquid sulfur dioxide - HCBBS Forum
24. How to determine gas concentration based on the temperature difference of the converter? - HCBBS Forum
25. Sulfuric acid filter - HCBBS Forum
26. Numerous problems with the sulfidation treatment of high-arsenic copper waste acid - HCBBS Forum
27. Material issues - HCBBS Forum
28. What is the liquid crystallization temperature of the newly purchased sample? - HCBBS Forum
29. Suitable materials for fuming sulfuric acid - HCBBS Forum
30. The issue of sulfur dioxide levels meeting standards when starting up the sulfuric acid plant - HCBBS Forum
31. Is the color of 98.3% sulfuric acid yellow-brown? - HCBBS Forum
32. I have a question regarding the isolation layer for sulfuric acid pump tanks - HCBBS Forum
33. Test the air leakage rate of the hot and cold sulfate heat exchangers? - HCBBS Forum
34. Design - HCBBS Forum
35. I would like to ask the teachers: Under normal circumstances, how many years can a sulfuric acid plant operate, both domestically and internationally? - HCBBS Forum
36. Where does scaling occur in sulfuric acid plants? - HCBBS Forum
37. Nanhua Company’s 20,000-ton/year electronic-grade high-purity sulfuric acid production facility was successfully commissioned - HCBBS Forum
38. The performance of German Piela blowers in China’s sulfuric acid industry - HCBBS Forum
39. Is it true that the lower the outlet temperature for the purification of acid produced from smelting flue gas, the better? - HCBBS Forum
40. Conversion rate of the converter - HCBBS Forum
41. Are there sulfate groups? - HCBBS Forum
42. Looking for factories in the Jiangsu, Zhejiang, and Shanghai regions that can carry out acidification processing (using dilute sulfuric acid) - HCBBS Forum
43. Pipeline material for concentrated sulfuric acid and dilute sulfuric acid at 50–80°C pipe diameter - HCBBS Forum
44. The laboratory wants to produce SO3; is vanadium catalyst available for retail purchase? Looking for recommendations - HCBBS Forum
45. The pressure at the inlet and outlet of the SO2 fan varies significantly - HCBBS Forum
46. Looking for manufacturers of Claus sulfur recovery process packages and their phone numbers - HCBBS Forum
47. Nicotinic acid color - HCBBS Forum
48. Regarding the issue of pump reversal caused by a power outage in the boiler feed water pump of a sulfuric acid plant. - HCBBS Forum
49. Automatic coal sorting damage rate - HCBBS Forum
50. Acid mist measurement in flue gas acid production - HCBBS Forum
51. What is the exhaust mist from PP acid production? - HCBBS Forum
52. Water dilution method for the dry absorption cycle tank - HCBBS Forum
53. How are the various process indicator parameters obtained in the flue gas acid production process at gold smelters? What is the basis for this? - HCBBS Forum
54. Discussion on the further development of existing acid production processes - HCBBS Forum
55. Any good ideas for saving energy, reducing emissions, and improving efficiency in using flue gas to produce acid? - HCBBS Forum
56. Acid production with high-concentration SO2: pre-conversion + one-stage conversion and one-stage absorption process - HCBBS Forum
57. Can people stand on large storage tanks designed for heat retention or insulation to operate them? - HCBBS Forum
58. Treatment of hydrogen peroxide storage tanks - HCBBS Forum
59. How many more companies in Shandong produce acid from pyrite?“” - HCBBS Forum
60. Gasket material used - HCBBS Forum
61. Flue gas acid production: The pressure drop at the fan inlet will not decrease - HCBBS Forum
62. Does the concentration of concentrated sulfuric acid decrease or increase when heated? - HCBBS Forum
63. Chemical industry cooperation - HCBBS Forum
64. Hot work on concentrated sulfuric acid pipelines - HCBBS Forum
65. I’d like to ask experts: at what concentration of nicotinic acid is smoking generally observed, and what is the corresponding smoking pressure? - HCBBS Forum
66. Custom functions in spreadsheets - HCBBS Forum
67. Waste sulfuric acid disposal process - HCBBS Forum
68. Differences in the process flow - HCBBS Forum
69. Who has the electronic version of the book \"Modern Sulfuric Acid Operations and Technology Guide\"? - HCBBS Forum
70. fuming sulfuric acid - HCBBS Forum
71. What are the domestic and international salaries for process management and R&D in sulfuric acid catalysts? - HCBBS Forum
72. In an environment of 400 degrees Celsius with sulfuric acid mist, what type of steel is corrosion-resistant? - HCBBS Forum
73. Blind flanges for process pipelines - HCBBS Forum
74. Issues with online exhaust gas monitoring - HCBBS Forum
75. Sulfuric acid shipping cost - HCBBS Forum
76. The comprehensive utilization level of phosphogypsum in our country is steadily improving - HCBBS Forum
77. Can niacin be stored or transported in stainless steel? - HCBBS Forum
78. Color of sulfuric acid - HCBBS Forum
79. What is the crystallization temperature of concentrated sulfuric acid? How should winter crystallization be dealt with? - HCBBS Forum
80. How to handle the waste acid generated during the production of sulfonic acids - HCBBS Forum
81. Erxi Yangbao is generally high - HCBBS Forum
82. It’s paid; add a name to the papers related to sulfuric acid for use in professional title evaluations. Thank you - HCBBS Forum
83. Problem of tube blockage in waste heat boilers - HCBBS Forum
84. Has there been any ranking of manufacturers of high-temperature acid pumps for low-temperature waste heat recovery? - HCBBS Forum
85. In copper smelting for acid production, the purified liquid discharged is red – what is the reason for this? - HCBBS Forum
86. Green upgrading project for the pretreatment unit of Anhui Liuguo Chemical Company’s phosphatic fertilizer production line with an annual output of 1.5 million tons - HCBBS Forum
87. To what level does the liquid in the flue gas acid production purification nozzle need to reach? - HCBBS Forum
88. Wet acid production process - HCBBS Forum
89. Searching for design firms and manufacturers for acid production from smelting flue gas - HCBBS Forum
90. Who knows about the Institute of Instrumentation? - HCBBS Forum
91. Replacement of sulfuric acid catalysts in refined production - HCBBS Forum
92. Seeking advice from experts - HCBBS Forum
93. Issue of dilute acid reuse in alkylating waste acid regeneration units - HCBBS Forum
94. Freezing and blockage at the outlet of the sulfuric acid magnetic pump damaged the entire pump - HCBBS Forum
95. Higher than external leakage - HCBBS Forum
96. For desulfurization of acid exhaust gases using hydrogen peroxide, what is the concentration of hydrogen peroxide to be used? - HCBBS Forum
97. Dear fellow practitioners, a piece has broken off from one of the catalyst grate plates; a small amount of catalyst has fallen into the gas chamber - HCBBS Forum
98. WSA wet acid production method - HCBBS Forum
99. How to utilize 30 tons of hydrogen sulfide per day? - HCBBS Forum
100. Are there any suppliers in Taizhou, Zhejiang, that can provide 30%-50% dilute sulfuric acid for use in wastewater treatment? - HCBBS Forum