English — Forum #115 (Page 9/11)

1. Differences in standards for plastic-lined pipes - HCBBS Forum
2. Butterfly valve installation issues - HCBBS Forum
3. Who has the electronic version of the book \"Modern Sulfuric Acid Operations and Technology Guide\"? - HCBBS Forum
4. Acid production from smelting flue gas, use of hydrogen peroxide for desulfurization, issues with the circulating liquid - HCBBS Forum
5. Production of acid from smelting flue gas; treatment of waste acid - HCBBS Forum
6. Is nitrogen oxide being generated? - HCBBS Forum
7. Questions regarding the calculations for the dry absorption process using sulfuric acid; looking forward to experts’ answers - HCBBS Forum
8. Wet acid production - HCBBS Forum
9. Catalyst screening services and screening loss guarantee - HCBBS Forum
10. Acid production technology provider - HCBBS Forum
11. Is there a cofferdam installed around the entire site of the sulfuric acid plant? - HCBBS Forum
12. The effectiveness of organic amine desulfurization - HCBBS Forum
13. Converter bed pressure difference - HCBBS Forum
14. Has anyone inspected the quality of acid-resistant brick masonry using a 5x magnifying glass? - HCBBS Forum
15. Domestic energy saving news Sichuan sulfuric acid plant waste heat power generation Sichuan sulfuric acid plant 110,000 tons/year pyrite acid production system, manufactured by Chemical Industry - HCBBS Forum
16. Sulfuric acid shipping cost - HCBBS Forum
17. Sulfur-based sulfuric acid production process - HCBBS Forum
18. Discussion on leak handling in cryogenic recovery equipment - HCBBS Forum
19. Flue gas inlet direction of the sulfuric acid electrodemister - HCBBS Forum
20. Filter tank level gauge - HCBBS Forum
21. I would like to ask what material the water supply pipe that is inserted under the acid level in the acid circulation tank is made of - HCBBS Forum
22. The issue with the calibration of oxygen concentration meters at Nanhua Institute - HCBBS Forum
23. kkk fan guide vane issue - HCBBS Forum
24. What is the effect of mixing a small amount of sulfuric acid into nicotinic acid? - HCBBS Forum
25. Sulfuric acid with structured packing - HCBBS Forum
26. Issues with online exhaust gas monitoring - HCBBS Forum
27. Summary of sulfuric acid corrosion-resistant material series - HCBBS Forum
28. Some discussions on tubular acid distributors - HCBBS Forum
29. Questions about welding in sulfuric acid production? - HCBBS Forum
30. How much lime is needed to neutralize one ton of 93% sulfuric acid? - HCBBS Forum
31. How to prepare 28% fuming sulfuric acid - HCBBS Forum
32. Shift of conversion temperature before acid production overhaul - HCBBS Forum
33. I would like to ask if dust or gas alarm systems are installed in the sulfur melting process at your facilities? - HCBBS Forum
34. Blind flanges for process pipelines - HCBBS Forum
35. What’s the reason for oil in the glass level gauge of the on-site boiler? - HCBBS Forum
36. Design of small-scale sulfuric acid production plant - HCBBS Forum
37. Industrial policy on sulfuric acid plants - HCBBS Forum
38. Foaming problem? - HCBBS Forum
39. Our factory has a new waste acid cracking project. Please give me some advice for newbies. - HCBBS Forum
40. How to remove sulfate and F ions from wastewater in an economical and efficient manner - HCBBS Forum
41. Compilation of Boiler Accident Cases - HCBBS Forum
42. Production of refined sulfuric acid - HCBBS Forum
43. NOx content indicators in the exhaust gas of the WSA sulfuric acid production process and their causes - HCBBS Forum
44. Waste heat boiler for sulfuric acid production from pyrite - HCBBS Forum
45. Why was Nanhua’s sulfuric acid production limited to Series 7 only? - HCBBS Forum
46. Fire hazard classification in waste acid regeneration units - HCBBS Forum
47. In the production of acid from pyrite, what emergency measures should be taken for the furnace in case of a sudden power outage? - HCBBS Forum
48. Which acid expert has a setup for vanadium-filtering catalysts? - HCBBS Forum
49. Supply issues with Mengmok catalysts - HCBBS Forum
50. Precautions for the acceptance of closed-type cooling towers. - HCBBS Forum
51. Who has the safety operating procedures for niacin? Please share them, thanks - HCBBS Forum
52. What does the pole pitch of an electric demister mean? - HCBBS Forum
53. What are the precautions when producing fuming sulfuric acid? - HCBBS Forum
54. Wastewater COD treatment manufacturers - HCBBS Forum
55. Aluminum removal from spent acid, acid recovery process. - HCBBS Forum
56. Installation of 98% loading flexibles - HCBBS Forum
57. What is the loading method for 93% concentrated sulfuric acid? - HCBBS Forum
58. Construction begins on Xinjiang Yingtai Energy’s Tiemenguan sulfur-based acid production project with an annual capacity of 300,000 tons - HCBBS Forum
59. ***phenol - HCBBS Forum
60. Recommend some refractory brick construction companies - HCBBS Forum
61. Should steam or ammonia water be used first in the ammonia evaporator? - HCBBS Forum
62. Reasons for heat-induced corrosion during transformation - HCBBS Forum
63. Ion liquid desulfurization is used for sulfuric acid exhaust gas - HCBBS Forum
64. Does a nitric acid storage tank need a breather valve? - HCBBS Forum
65. Transformation heating - HCBBS Forum
66. The company plans to use lead smelting exhaust gases to produce refined acid; are there any good technologies that can yield sulfuric acid of analytical purity? Waiting online - HCBBS Forum
67. 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
68. Concentrated sulfuric acid above 98.5 will precipitate - HCBBS Forum
69. New acid-binding materials revolutionize traditional acid binders - HCBBS Forum
70. What is the sequence for starting and stopping centrifugal pumps when they are connected in series? - HCBBS Forum
71. Scaling in the low-temperature waste heat recovery unit of sulfuric acid plants severely affects steam production - HCBBS Forum
72. Niacin contains sulfur dioxide - HCBBS Forum
73. Construction of Sanning Chemical’s phosphogypsum purification project begins - HCBBS Forum
74. Waste sulfuric acid disposal process - HCBBS Forum
75. Discussion on the further development of existing acid production processes - HCBBS Forum
76. In sulfuric acid production plants, the liquid level in medium-pressure boilers is controlled at 60% in some plants. Some factories keep it at 50%. What are the differences between these two types of boilers? - HCBBS Forum
77. Purchase of concentrated sulfuric acid - HCBBS Forum
78. Selection and application of the inner lining in the first-stage power wave transition section shell - HCBBS Forum
79. What material is suitable for lining the chimney that discharges sulfuric acid exhaust gases? - HCBBS Forum
80. Is there anyone who can share the proceedings of the 2024 industry annual conference? - HCBBS Forum
81. Seeking help regarding the use of thiourea method for gold extraction – why does the addition of alkali result in precipitation? - HCBBS Forum
82. Why is the concentration accuracy of drying acid and absorbing acid important? - HCBBS Forum
83. Is there a relationship between the converter temperature and the air volume at the fan inlet? - HCBBS Forum
84. Sodium sulfate electrolysis equipment - HCBBS Forum
85. Steam generated from the production of sulfuric acid from acidic gases - HCBBS Forum
86. The issue of circulating acid volume in the drying tower - HCBBS Forum
87. May I ask where the acid gas pipelines drawn from the three dry absorption tanks in each sulfuric acid plant are sent? - HCBBS Forum
88. Custom functions in spreadsheets - HCBBS Forum
89. The issue of flue gas concentration in sulfuric acid production - HCBBS Forum
90. The new smoke emission standards are to be implemented - HCBBS Forum
91. Regarding the issue of air intake through manholes in the horizontal flue pipes at the inlet of the primary scrubber - HCBBS Forum
92. G4, G5 grade electronic-grade sulfuric acid technology - HCBBS Forum
93. 【Wet Process】Flue gas desulfurization technology - HCBBS Forum
94. Who can send me the industrial standards for corrosion and scale inhibition agents used in industrial circulating water? Thank you - HCBBS Forum
95. Introduction to Xuanda SD Series Materials Resistant to Sulfuric Acid Corrosion - HCBBS Forum
96. Chlorine bleach was accidentally added to the acid waste tank; how can the white foam be removed? - HCBBS Forum
97. Topso Wet Acid Production Method Discussion Group - HCBBS Forum
98. potassium sulfate - HCBBS Forum
99. Differences in the process flow - HCBBS Forum
100. The performance of German Piela blowers in China’s sulfuric acid industry - HCBBS Forum