NL137436C - - Google Patents
Info
- Publication number
- NL137436C NL137436C NL137436DA NL137436C NL 137436 C NL137436 C NL 137436C NL 137436D A NL137436D A NL 137436DA NL 137436 C NL137436 C NL 137436C
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
-
- 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
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/228—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen one form of calcium sulfate being formed and then converted to another form
- C01B25/229—Hemihydrate-dihydrate process
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4257960 | 1960-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL137436C true NL137436C (en) |
Family
ID=12639963
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL137436D NL137436C (en) | 1960-10-26 | ||
| NL270658D NL270658A (en) | 1960-10-26 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL270658D NL270658A (en) | 1960-10-26 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE609371A (en) |
| DE (1) | DE1293136B (en) |
| GB (1) | GB1007898A (en) |
| MY (1) | MY6600066A (en) |
| NL (2) | NL270658A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1557663A (en) * | 1975-08-01 | 1979-12-12 | Albright & Wilson | Process for preparing phosphore acid |
| BE1016065A3 (en) * | 2004-06-01 | 2006-02-07 | Prayon Technologies | Process phosphoric acid production. |
| DE102020100241A1 (en) | 2020-01-08 | 2021-07-08 | Thyssenkrupp Ag | Process for the production of phosphoric acid and calcium sulphate quality suitable for clinker process for the commercial and industrial utilization of calcium sulphate |
| CN111451004B (en) * | 2020-04-20 | 2022-03-15 | 武汉工程大学 | Method for producing phosphate concentrate and by-producing alpha-semi-hydrated gypsum and magnesium carbonate from calcium collophanite |
| CN112624175A (en) * | 2021-01-11 | 2021-04-09 | 宜都兴发化工有限公司 | Method for improving crystal form of phosphogypsum in wet-process phosphoric acid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH141866A (en) * | 1928-06-05 | 1930-08-31 | Kunstduenger Patent Verwertung | Process for the preparation of a phosphoric acid solution. |
| DE660561C (en) * | 1930-02-13 | 1938-05-28 | Dorr Ges M B H | Process for the digestion of rock phosphates |
| US2049032A (en) * | 1932-07-02 | 1936-07-28 | Dorr Co Inc | Preparation of phosphoric acid |
| NL74099C (en) * | 1950-03-03 |
-
0
- NL NL137436D patent/NL137436C/xx active
- NL NL270658D patent/NL270658A/xx unknown
-
1961
- 1961-10-19 BE BE609371A patent/BE609371A/en unknown
- 1961-10-24 DE DE1961N0020715 patent/DE1293136B/en not_active Withdrawn
- 1961-10-26 GB GB3843561A patent/GB1007898A/en not_active Expired
-
1966
- 1966-12-31 MY MY6600066A patent/MY6600066A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1007898A (en) | 1965-10-22 |
| BE609371A (en) | 1962-02-15 |
| DE1293136B (en) | 1969-04-24 |
| MY6600066A (en) | 1966-12-31 |
| NL270658A (en) |