ES431984A1 - Procedure to produce phosphoric acid by wetland. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure to produce phosphoric acid by wetland. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES431984A1 ES431984A1 ES431984A ES431984A ES431984A1 ES 431984 A1 ES431984 A1 ES 431984A1 ES 431984 A ES431984 A ES 431984A ES 431984 A ES431984 A ES 431984A ES 431984 A1 ES431984 A1 ES 431984A1
- Authority
- ES
- Spain
- Prior art keywords
- phosphoric acid
- slurry
- sulfuric acid
- translation
- legally binding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fertilizers (AREA)
Abstract
Process for producing phosphoric acid by wet process, from phosphate rock, characterized in that it comprises the steps of: (I) milling an aqueous slurry of phosphate rock containing at least about 20% by weight of water, sufficient for the phosphate rock to pass through a 30 mesh screen (tyler); (II) passing the slurry of the ground rock into an attack tank and, in the same, contacting and reacting the slurry with dilute sulfuric acid obtained from step (VI), to obtain a suspension thickness of crystalline hydrated calcium sulfate product in phosphoric acid; (III) separating the slurry produced from the attack tank; (IV) subjecting the slurry produced to a separation step, whereby the crystalline hydrated calcium sulfate is separated from the phosphoric acid; (V) wash the separated calcium sulfate with water; (VI) mix the spent calcium sulphate wash water with concentrated sulfuric acid to obtain dilute sulfuric acid; y (VII) passing the dilute sulfuric acid to the stage (II) above. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41664773A | 1973-11-16 | 1973-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES431984A1 true ES431984A1 (en) | 1976-11-01 |
Family
ID=23650767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES431984A Expired ES431984A1 (en) | 1973-11-16 | 1974-11-15 | Procedure to produce phosphoric acid by wetland. (Machine-translation by Google Translate, not legally binding) |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1047734A (en) |
| ES (1) | ES431984A1 (en) |
| OA (1) | OA05142A (en) |
| ZA (1) | ZA746769B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502546B (en) * | 2011-11-28 | 2013-10-23 | 安徽六国化工股份有限公司 | Titanium white waste acid utilization method |
-
1974
- 1974-10-24 ZA ZA00746769A patent/ZA746769B/en unknown
- 1974-11-12 CA CA213,416A patent/CA1047734A/en not_active Expired
- 1974-11-15 ES ES431984A patent/ES431984A1/en not_active Expired
-
1975
- 1975-10-23 OA OA55643A patent/OA05142A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1047734A (en) | 1979-02-06 |
| ZA746769B (en) | 1975-11-26 |
| OA05142A (en) | 1981-01-31 |
| AU7530474A (en) | 1976-05-13 |
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