KR880007391A - 칼슘 화합물을 고상 및 개스상 화합물로 전환시키는 방법 - Google Patents
칼슘 화합물을 고상 및 개스상 화합물로 전환시키는 방법 Download PDFInfo
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- KR880007391A KR880007391A KR870014669A KR870014669A KR880007391A KR 880007391 A KR880007391 A KR 880007391A KR 870014669 A KR870014669 A KR 870014669A KR 870014669 A KR870014669 A KR 870014669A KR 880007391 A KR880007391 A KR 880007391A
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- South Korea
- Prior art keywords
- calcium
- mineral
- oxide
- temperature
- gas phase
- Prior art date
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- 239000007787 solid Substances 0.000 title claims 3
- 229940043430 calcium compound Drugs 0.000 title 1
- 150000001674 calcium compounds Chemical class 0.000 title 1
- 150000001875 compounds Chemical class 0.000 title 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims 12
- 238000000034 method Methods 0.000 claims 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 8
- 229910001576 calcium mineral Inorganic materials 0.000 claims 8
- 239000002803 fossil fuel Substances 0.000 claims 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 5
- 239000002243 precursor Substances 0.000 claims 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 4
- 239000004568 cement Substances 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 4
- 230000007935 neutral effect Effects 0.000 claims 4
- 239000000377 silicon dioxide Substances 0.000 claims 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims 3
- 239000011575 calcium Substances 0.000 claims 3
- 229910052791 calcium Inorganic materials 0.000 claims 3
- 229910002090 carbon oxide Inorganic materials 0.000 claims 3
- 239000007789 gas Substances 0.000 claims 3
- 239000004571 lime Substances 0.000 claims 3
- 230000001590 oxidative effect Effects 0.000 claims 3
- 239000002367 phosphate rock Substances 0.000 claims 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 239000000047 product Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims 1
- 229910001634 calcium fluoride Inorganic materials 0.000 claims 1
- 239000013078 crystal Substances 0.000 claims 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 claims 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
- 239000012265 solid product Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 229910052815 sulfur oxide Inorganic materials 0.000 claims 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 claims 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 claims 1
- 235000019976 tricalcium silicate Nutrition 0.000 claims 1
Classifications
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- 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
-
- 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
- C01F11/02—Oxides or hydroxides
- C01F11/04—Oxides or hydroxides by thermal decomposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/008—Pyrolysis reactions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
-
- 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
- C01B25/02—Preparation of phosphorus
- C01B25/027—Preparation of phosphorus of yellow phosphorus
-
- 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
- C01B25/12—Oxides of phosphorus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/192—Preparation from fluorspar
-
- 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
- C01F11/02—Oxides or hydroxides
- C01F11/04—Oxides or hydroxides by thermal decomposition
- C01F11/06—Oxides or hydroxides by thermal decomposition of carbonates
-
- 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (13)
- 칼슘 광물을 약 3400℉ 이상의 온도로 1분 미만 동안 처리함을 특징으로 하여, 칼슘 광물을 칼슘을 함유하는 고체생성물 및 개스상 스트림으로 전환시키는 방법.
- 제1항에 있어서, 칼슘 광물이 중성 내지 산화 대기중에서 석회 및 황 산화물을 함유하는 개스상 스트림으로 분해되는 황산 칼슘인 방법.
- 제2항에 있어서, 황산칼슘이 화학적 황산칼슘인 방법.
- 제2항에 있어서, 황산칼슘을 실리카, 알루미나 및 산화철과 혼합하고, 혼합물을 중성 내지 산화대기중에서 1분 미만 동안 약 3400℉ 이상의 온도로 처리한 다음, 황 산화물 및 시멘트 클링커 전구체를 회수하는 방법.
- 제4항에 있어서, 황산칼슘, 실리카, 알루미나 및 산화철을 반응전에 화석연료(여기서, 화석연료는 황산칼슘 공급 혼합물을 황 산화물 및 시멘트 클링커 전구체로 전환시키는데 필요한 총 유입 에너지의 전부 또는 적어도 일부를 제공한다)와 혼합시키는 방법.
- 제1항에 있어서, 칼슘 광물이 중성 내지 산화 대기중에서 석회 및 탄소 산화물을 함유하는 개스상 스트림으로 분해되는 탄산칼슘인 방법.
- 제1항에 있어서, 칼슘 광물이 탄산칼슘(여기서, 이 탄산칼슘을 실리카, 알루미나 산화철의 공급원과 혼합시킨 다음, 이 혼합물을 중성 내지 산화대기중에서 1분 미만 동안 약 3400℉이상의 온도로 처리하면 시멘트 전구체 및 탄소 산화물을 함유하는 개스상 스트림이 생선된다)인 방법.
- 제7항에 있어서, 탄산칼슘, 실리카, 알루미나 및 산화철 혼합물을 반응전에 화석연료(여기서, 화석연료는 약 3400℉이상의 온도에서 연소되어 탄산칼슘을 탄소산화물 및 시멘트 클링커 전구체로 전환시키는데 필요한 총 유입 에너지의 전부 또는 적어도 일부를 제공한다)와 혼합시키는 방법.
- 제1항에 있어서, 칼슘 광물이 원소 인 및 고체 칼슘 생성물로 전환되는 포스페이트 암석으로서, 이때 상기 포스페이트 암석을 반응전에 화석연료(여기서, 화석연료는 환원대기중 3400℉ 이상의 온도에서 연소된다) 와 혼합시킴을 특징으로 하는 방법.
- 제1항에 있어서, 칼슘 광물이 인 산화물 및 고체 칼슘 생성물로 전환되는 포스페이트 암석으로서, 이때 상기 포스트페이 암석을 반응전에 화석연료(여기서, 화석연료는 산화대기중 약 3400℉이상의 온도에서 연소된다)와 혼합시킴을 특징으로 하는 방법.
- 제1항에 있어서 칼슘 광물이 불화수소 및 석회로 전환되는 칼슘 플루오라이드인 방법.
- 제4, 5, 7 또는 8항에 있어서, 시멘트 클링커 전구체를 2150℉ 이상의 온도에서 소정량의 삼칼슘 실리케이트 결정 형성을 달성하는데 충분한 시간 동안 처리하는 방법.
- 제1항 내지 제12항중 어느 한 항에 있어서, 소정 반응온도를 수득하는데 요구되는 열의 전부 또는 적어도 일부를 전기 에너지에 의해 공급하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US945,859 | 1986-12-23 | ||
| US06/945,859 US4774064A (en) | 1986-12-23 | 1986-12-23 | Conversion of calcium compounds into solid and gaseous compounds |
| US945859 | 1986-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880007391A true KR880007391A (ko) | 1988-08-27 |
| KR910008730B1 KR910008730B1 (ko) | 1991-10-19 |
Family
ID=25483628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019870014669A KR910008730B1 (ko) | 1986-12-23 | 1987-12-22 | 칼슘 화합물을 고상 및 개스상 화합물로 전환시키는 방법 |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4774064A (ko) |
| EP (1) | EP0272984B1 (ko) |
| JP (1) | JPS63218509A (ko) |
| KR (1) | KR910008730B1 (ko) |
| BR (1) | BR8706959A (ko) |
| CA (1) | CA1327694C (ko) |
| DE (1) | DE3785919T2 (ko) |
| IL (1) | IL84565A (ko) |
| IN (1) | IN170271B (ko) |
| JO (1) | JO1528B1 (ko) |
| MA (1) | MA21390A1 (ko) |
| MX (1) | MX166927B (ko) |
| OA (1) | OA08787A (ko) |
| TN (1) | TNSN87142A1 (ko) |
| ZA (1) | ZA878473B (ko) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066474A (en) * | 1988-05-10 | 1991-11-19 | Science Ventures, Inc. | Method for sulfur dioxide production from calcium sulfate by entrained high-temperature slagging reduction |
| DE19514663A1 (de) * | 1995-04-20 | 1996-10-24 | Kronos Titan Gmbh | Metallchloridgenerator |
| US6488765B1 (en) | 1997-07-30 | 2002-12-03 | Cemex, Inc. | Oxygen enrichment of cement kiln system combustion |
| US6050813A (en) * | 1997-12-02 | 2000-04-18 | Cement Petcoptimizer Company | Control of cement clinker production by analysis of sulfur in the end product |
| US6383283B1 (en) | 1997-12-02 | 2002-05-07 | Cement Petcoptimizer Company | Control of cement clinker production by analysis of sulfur in the end product |
| US6309210B1 (en) * | 1999-03-16 | 2001-10-30 | L'air Liquide, Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Claude | Kiln universal oxygen enrichment |
| US6183244B1 (en) | 1999-04-14 | 2001-02-06 | Cement Petcoptimizer Company | Control of cement clinker production in a wet process rotary kiln by analysis of sulfur in the end product |
| US7910080B2 (en) * | 2004-06-04 | 2011-03-22 | Jdcphosphate, Inc. | Phosphorous pentoxide producing methods |
| JP5818579B2 (ja) * | 2011-08-29 | 2015-11-18 | 株式会社デイ・シイ | 中性化抑制型早強セメント組成物 |
| US8734749B2 (en) | 2011-11-29 | 2014-05-27 | Jdcphosphate, Inc. | Phosphorous pentoxide producing methods and phosphate ore feed agglomerates |
| US9783419B2 (en) | 2014-09-26 | 2017-10-10 | Jdcphosphate, Inc. | Phosphorous pentoxide producing methods and systems with increased agglomerate compression strength |
| WO2019222602A1 (en) | 2018-05-18 | 2019-11-21 | California Institute Of Technology | Process to convert reduced sulfur species and water into hydrogen and sulfuric acid |
| US11858811B2 (en) | 2019-06-30 | 2024-01-02 | Novaphos Inc. | Phosphorus production methods and systems and methods for producing a reduction product |
| BR112022002685A2 (pt) | 2019-08-13 | 2022-05-24 | Brimstone Energy Inc | Processo para fabricar óxido de cálcio ou cimento portland comum a partir de rochas e minerais contendo cálcio |
| CN111701559A (zh) * | 2020-07-17 | 2020-09-25 | 衢州市鼎盛化工科技有限公司 | 一种适用于氟化钙细粉制备氟化氢的卧式反应装置 |
| WO2023205081A1 (en) * | 2022-04-19 | 2023-10-26 | Carbo Culture, Inc. | Apparatus and process for production of dry durable carbon |
| WO2024158901A1 (en) * | 2023-01-25 | 2024-08-02 | Vahit Atakan | Synthesis of cement from alternative raw materials and fuels that reduces or eliminates co 2 emissions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2426147A (en) * | 1945-01-09 | 1947-08-19 | Smidth & Co As F L | Cement manufacture |
| US2860037A (en) * | 1952-12-04 | 1958-11-11 | Kamlet Jonas | Process for production of calcium carbide and phosphorus |
| US3329417A (en) * | 1964-09-01 | 1967-07-04 | Continental Carbon Co | Method and apparatus for calcining inorganic hydrates |
| US3481706A (en) * | 1967-12-28 | 1969-12-02 | Grace W R & Co | Phosphorus production |
| FR1584275A (ko) * | 1968-05-15 | 1969-12-19 | ||
| US3679363A (en) * | 1970-12-15 | 1972-07-25 | American Cyanamid Co | Production of phosphorus |
| US3729551A (en) * | 1971-01-07 | 1973-04-24 | Cons Coal Co | Conversion of calcium sulfate to calcium oxide and elemental sulfur |
| US3862294A (en) * | 1972-04-10 | 1975-01-21 | Donald Spencer Engelhart | Method for flash calcining inorganic materials |
| CA1061987A (en) * | 1974-05-15 | 1979-09-11 | Iowa State University Research Foundation, Inc. | Decomposition of calcium sulfate by zoned reduction and oxidation in a fluidized bed |
| DE2812240A1 (de) * | 1978-03-21 | 1979-10-04 | Sueddeutsche Kalkstickstoff | Verfahren zur herstellung von branntkalk |
| DE2834862C2 (de) * | 1978-08-09 | 1982-04-29 | Johann Schaefer Kalkwerke, 6252 Diez | Verfahren und Schachtofen zum Brennen von Kalk,Zement oder anderen stückigen Schüttgütern |
| JPS56362A (en) * | 1979-06-15 | 1981-01-06 | Santo Tekkosho Kk | Continuous milling and washing method and apparatus of fabric |
| US4508573A (en) * | 1981-12-02 | 1985-04-02 | Texas Industries, Inc. | Co-production of cementitious products |
| US4503018A (en) * | 1983-02-14 | 1985-03-05 | Davy Mckee Corporation | Desulfurization of phosphogypsum |
| US4600438A (en) * | 1983-03-09 | 1986-07-15 | Texas Industries, Inc. | Co-production of cementitious products |
| IL68400A (en) * | 1983-04-14 | 1986-03-31 | Imi Tami Institute Research | Method for the beneficiation of phosphate rock |
| JPS61136948A (ja) * | 1984-12-04 | 1986-06-24 | 川崎重工業株式会社 | セメントクリンカの焼成装置 |
-
1986
- 1986-12-23 US US06/945,859 patent/US4774064A/en not_active Expired - Fee Related
-
1987
- 1987-10-23 IN IN769/MAS/87A patent/IN170271B/en unknown
- 1987-11-11 ZA ZA878473A patent/ZA878473B/xx unknown
- 1987-11-23 IL IL84565A patent/IL84565A/xx not_active IP Right Cessation
- 1987-12-09 JP JP62309761A patent/JPS63218509A/ja active Granted
- 1987-12-17 TN TNTNSN87142A patent/TNSN87142A1/fr unknown
- 1987-12-17 OA OA59247A patent/OA08787A/xx unknown
- 1987-12-18 DE DE87402919T patent/DE3785919T2/de not_active Expired - Fee Related
- 1987-12-18 EP EP87402919A patent/EP0272984B1/en not_active Expired - Lifetime
- 1987-12-21 MA MA21379A patent/MA21390A1/fr unknown
- 1987-12-21 JO JO19871528A patent/JO1528B1/en active
- 1987-12-21 BR BR8706959A patent/BR8706959A/pt not_active IP Right Cessation
- 1987-12-22 KR KR1019870014669A patent/KR910008730B1/ko not_active IP Right Cessation
- 1987-12-23 MX MX009918A patent/MX166927B/es unknown
- 1987-12-23 CA CA000555276A patent/CA1327694C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63218509A (ja) | 1988-09-12 |
| IN170271B (ko) | 1992-03-07 |
| CA1327694C (en) | 1994-03-15 |
| BR8706959A (pt) | 1988-07-26 |
| EP0272984B1 (en) | 1993-05-19 |
| DE3785919T2 (de) | 1993-10-28 |
| JO1528B1 (en) | 1989-01-25 |
| OA08787A (en) | 1989-03-31 |
| ZA878473B (en) | 1988-05-09 |
| IL84565A (en) | 1992-02-16 |
| EP0272984A2 (en) | 1988-06-29 |
| JPH0516373B2 (ko) | 1993-03-04 |
| MA21390A1 (fr) | 1989-07-01 |
| KR910008730B1 (ko) | 1991-10-19 |
| IL84565A0 (en) | 1988-04-29 |
| US4774064A (en) | 1988-09-27 |
| TNSN87142A1 (fr) | 1990-01-01 |
| MX166927B (es) | 1993-02-15 |
| EP0272984A3 (en) | 1989-11-15 |
| DE3785919D1 (de) | 1993-06-24 |
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