Sulfur Recovery Daily Question 2018.11.19

Quality specifications for sulfur: The standards applicable to sulfur quality are GB2449－92.
| Item | Quality specification | Actual value |
|------|---------------------|--------------|
| Sulfur (S) | % | ≥ 99.90 | 99.95 |
| Moisture | % | ≤ 0.10 | 0.018 |
| Ash content | % | ≤ 0.03 | 0.015 |
| Acidity (as H2SO4) | % | ≤ 0.003 | 0.002 |
| Organic matter | % | ≤ 0.03 | 0.03 |
| Arsenic (As) | % | ≤ 0.0001 | 0.00008 |
| Iron (Fe) | % | ≤ 0.003 | 0.00004 |

Product specifications table:
| Serial number | Product name | Specification/model (international) | Packaging |
|---------------|--------------|-----------------------------------|------------|
| 1 | Sulfur powder | Grade 1, in blocks/granules/pieces | 50KG |
| 2 | Sulfur powder | Industrial grade, 100 mesh | 40KG |
| 3 | Sulfur powder | Industrial grade, 200 mesh | 40KG |
| 4 | Sulfur powder | Industrial grade, 325 mesh | 25KG |
| 5 | Sulfur powder | Industrial grade, 400 mesh | 40KG |
| 6 | Pesticide-grade sulfur powder | Grade 1, >325 mesh | 40KG |
| 7 | Ultra-fine sulfur powder | Grade 1, >400 mesh | 40KG |
| 8 | Ultra-fine sulfur powder | Grade 1, >600 mesh | 40KG |
| 9 | Sulfur powder | Agricultural use, 100 mesh | 40KG |
| 10 | Sulfur powder | For fruit trees, 200 mesh | 40KG |

①Color: bright yellow, free from mechanical impurities； ②Sulfur purity ≥99.9Wt% ； ③Carbon content ≤ 0.025 Wt% ； ④Ash content: 0.03 Wt% ； ⑤Water content ≤ 0.1 Wt% ； ⑥Hydrogen sulfide content ≤10PPm ； ⑦Acidity ≤ 0.003 Wt% ； ⑧Iron content ≤ 0.003 Wt% ； ⑨Organic matter ≤ 0.03 Wt% ； ⑩Arsenic content ≤ 0.0001 Wt%.

①Color: bright yellow, free from mechanical impurities； ②Sulfur purity ≥99.9Wt% ； ③Carbon content ≤ 0.025 Wt% ； ④Ash content: 0.03 Wt% ； ⑤Water content ≤ 0.1 Wt% ； ⑥Hydrogen sulfide content ≤10PPm ； ⑦Acidity ≤ 0.003 Wt% ； ⑧Iron content ≤ 0.003 Wt% ； ⑨Organic matter ≤ 0.03 Wt% ； ⑩Arsenic content ≤ 0.0001 Wt%.

Quality standards for sulfur: GB2449－92. Parameters, quality indicators, actual quality: Sulfur (S) % ≥ 99.90 99.95; Moisture % ≤ 0.10 0.018; Ash content % ≤ 0.03 0.015; Acidity (as H2SO4) % ≤ 0.003 0.002; Organic matter % ≤ 0.03 0.03; Arsenic (As) % ≤ 0.0001 0.00008; Iron (Fe) % ≤ 0.003 0.00004

①Color: bright yellow, free from mechanical impurities； ②Sulfur purity ≥99.9Wt% ； ③Carbon content ≤ 0.025 Wt% ； ④Ash content: 0.03 Wt% ； ⑤Water content ≤ 0.1 Wt% ； ⑥Hydrogen sulfide content ≤10PPm ； ⑦Acidity ≤ 0.003 Wt% ； ⑧Iron content ≤ 0.003 Wt% ； ⑨Organic matter ≤ 0.03 Wt% ； ⑩Arsenic content ≤ 0.0001 Wt%.

Quality specifications for sulfur: The standard applicable to sulfur quality is GB2449－92. Item, Quality specification, Actual quality: Sulfur (S) % ≥ 99.90, 99.95; Moisture % ≤ 0.10, 0.018; Ash content % ≤ 0.03, 0.015; Acidity (as H2SO4) % ≤ 0.003, 0.002; Organic matter % ≤ 0.03, 0.03; Arsenic (As) % ≤ 0.0001, 0.00008; Iron (Fe) % ≤ 0.003, 0.00004

①Color: bright yellow, free from mechanical impurities； ②Sulfur purity ≥99.9Wt% ； ③Carbon content ≤ 0.025 Wt% ； ④Ash content: 0.03 Wt% ； ⑤Water content ≤ 0.1 Wt% ； ⑥Hydrogen sulfide content ≤10PPm ； ⑦Acidity ≤ 0.003 Wt% ； ⑧Iron content ≤ 0.003 Wt% ； ⑨Organic matter ≤ 0.03 Wt% ； ⑩Arsenic content ≤ 0.0001 Wt%.

First-class product, Second-class product, Passable product

①Color: bright yellow, free from mechanical impurities； ②Sulfur purity ≥99.9Wt% ； ③Carbon content ≤ 0.025 Wt% ； ④Ash content: 0.03 Wt% ； ⑤Water content ≤ 0.1 Wt% ； ⑥Hydrogen sulfide content ≤10PPm ； ⑦Acidity ≤ 0.003 Wt% ； ⑧Iron content ≤ 0.003 Wt% ； ⑨Organic matter ≤ 0.03 Wt% ； ⑩Arsenic content ≤ 0.0001 Wt%.

In accordance with the petrochemical industry standards of the People’s Republic of China, Standard Number: GB2449-92. Quality specifications for different grades: Top grade, First grade, Qualified grade. Sulfur, % (m/m): ≥ 99.90, 99.50, 99.00. Moisture, % (m/m): ≤ 0.10, 0.50, 1.00. Ash content, % (m/m): ≤ 0.03, 0.10, 0.20. Acidity (as H2SO4), % (m/m): ≤ 0.003, 0.005, 0.02. Organic matter, % (m/m): ≤ 0.03, 0.30, 0.80. Arsenic (As), % (m/m): ≤ 0.0001, 0.01, 0.05. Iron (Fe), % (m/m): ≤ 0.003, 0.005 –. Residue on sieve with a pore size of 150μm, % (m/m) ≤