JPH0513893B2 - - Google Patents
Info
- Publication number
- JPH0513893B2 JPH0513893B2 JP59038932A JP3893284A JPH0513893B2 JP H0513893 B2 JPH0513893 B2 JP H0513893B2 JP 59038932 A JP59038932 A JP 59038932A JP 3893284 A JP3893284 A JP 3893284A JP H0513893 B2 JPH0513893 B2 JP H0513893B2
- Authority
- JP
- Japan
- Prior art keywords
- filtrate
- sludge
- washing
- post
- cleaning
- 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 - Lifetime
Links
- 239000000706 filtrate Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 24
- 238000006386 neutralization reaction Methods 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 13
- 239000013505 freshwater Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 239000012267 brine Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001424 calcium ion Inorganic materials 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 claims description 2
- 238000010626 work up procedure Methods 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 3
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 14
- 239000002351 wastewater Substances 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 9
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 4
- 238000001311 chemical methods and process Methods 0.000 description 4
- 150000004683 dihydrates Chemical class 0.000 description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- DSJYSRTZHXBOCX-UHFFFAOYSA-N ac1l9i4c Chemical compound O.O.O.O DSJYSRTZHXBOCX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- C01F11/468—Purification of calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3307315.5 | 1983-03-02 | ||
| DE19833307315 DE3307315A1 (de) | 1983-03-02 | 1983-03-02 | Verfahren zur reinigung von chemiegips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59195528A JPS59195528A (ja) | 1984-11-06 |
| JPH0513893B2 true JPH0513893B2 (en]) | 1993-02-23 |
Family
ID=6192270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59038932A Granted JPS59195528A (ja) | 1983-03-02 | 1984-03-02 | 化学セツコウの精製法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4612173A (en]) |
| JP (1) | JPS59195528A (en]) |
| AT (1) | AT383584B (en]) |
| DD (1) | DD214364A5 (en]) |
| DE (1) | DE3307315A1 (en]) |
| IN (1) | IN160357B (en]) |
| ZA (1) | ZA8417B (en]) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2652076B1 (fr) * | 1989-09-20 | 1992-03-20 | Rhone Poulenc Chimie | Procede de recuperation des valeurs de terres rares dans les gypses. |
| DE4034497C1 (en]) * | 1990-10-30 | 1992-02-13 | Metallgesellschaft Ag, 6000 Frankfurt, De | |
| US6197200B1 (en) | 1999-05-11 | 2001-03-06 | Eastroc Llc | Method of purifying flue gas waste slurries for use in gypsum production |
| US7560031B1 (en) | 2005-12-14 | 2009-07-14 | Dr. Phosphate, Inc. | Process for treating pond water |
| US20090004288A1 (en) * | 2007-06-29 | 2009-01-01 | Collins Gary L | Stabilized ophthalmic solutions |
| US20110127223A1 (en) * | 2009-12-02 | 2011-06-02 | Veolia Water North America Operating Services, Llc | Process for treating pond water |
| CN109485083A (zh) * | 2018-12-20 | 2019-03-19 | 四川久大蓬莱盐化有限公司 | 一种饲料添加剂硫酸钙的制备方法和制备系统 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1756637A (en) * | 1927-04-09 | 1930-04-29 | Rumford Chemical Works | Method of preparing by-product calcium sulphate for plaster |
| US2914474A (en) * | 1954-07-29 | 1959-11-24 | Phillips Petroleum Co | Removal of fluorides from industrial waste waters |
| US3551332A (en) * | 1969-06-16 | 1970-12-29 | Int Minerals & Chem Corp | Purification of fluorine-containing industrial waste waters |
| US3625648A (en) * | 1969-12-15 | 1971-12-07 | American Cyanamid Co | Recovery of fluorine and p2o5 from dilute aqueous acidic phosphatic solutions |
| US4171342A (en) * | 1974-04-03 | 1979-10-16 | Occidental Chemical Company | Recovery of calcium fluoride from phosphate operation waste water |
| US4145282A (en) * | 1977-01-24 | 1979-03-20 | Andco Industries, Inc. | Process for purifying waste water containing fluoride ion |
| US4415543A (en) * | 1980-02-12 | 1983-11-15 | Wilson Sr Eddie K | Process for treating phospho-gypsum waste product from wet-acid process of making phosphoric acid |
| DE3110829A1 (de) * | 1981-03-19 | 1982-09-30 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | Verfahren zur reinigung von phoshorsaeuregips |
| US4472368A (en) * | 1982-12-27 | 1984-09-18 | Agrico Chemical Company | Neutralization of cooling pond water in phosphoric acid plants |
-
1983
- 1983-03-02 DE DE19833307315 patent/DE3307315A1/de active Granted
- 1983-12-12 IN IN834/DEL/83A patent/IN160357B/en unknown
-
1984
- 1984-01-03 ZA ZA8417A patent/ZA8417B/xx unknown
- 1984-02-14 DD DD84260078A patent/DD214364A5/de not_active IP Right Cessation
- 1984-02-22 AT AT0058284A patent/AT383584B/de not_active IP Right Cessation
- 1984-03-02 JP JP59038932A patent/JPS59195528A/ja active Granted
- 1984-03-02 US US06/585,990 patent/US4612173A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATA58284A (de) | 1986-12-15 |
| ZA8417B (en) | 1984-09-26 |
| IN160357B (en]) | 1987-07-11 |
| AT383584B (de) | 1987-07-27 |
| US4612173A (en) | 1986-09-16 |
| JPS59195528A (ja) | 1984-11-06 |
| DE3307315A1 (de) | 1984-09-06 |
| DE3307315C2 (en]) | 1990-10-04 |
| DD214364A5 (de) | 1984-10-10 |
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