IN2014MN00516A - - Google Patents
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- Publication number
- IN2014MN00516A IN2014MN00516A IN516MUN2014A IN2014MN00516A IN 2014MN00516 A IN2014MN00516 A IN 2014MN00516A IN 516MUN2014 A IN516MUN2014 A IN 516MUN2014A IN 2014MN00516 A IN2014MN00516 A IN 2014MN00516A
- Authority
- IN
- India
- Prior art keywords
- calcium carbide
- crusher
- granules
- screen
- crushed
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/942—Calcium carbide
Abstract
Provided is a process for producing calcium carbide granules which when used for dry process acetylene generation neither enhance side reactions such as acetylene polymerization nor adversely affect the yield nor enhance the risk to safety due to an increase in reaction temperature. The process is for producing calcium carbide granules in which the content of granules having a diameter of 4 mm or larger is 5 wt.% or less and the content of granules having a diameter of 0.15 mm or smaller is 20 wt.% or less the process comprising the step (A) of crushing calcium carbide with a crusher the step (B) of putting the calcium carbide which has been crushed with the crusher through a screen having an opening size of 4 mm and the step (C) of introducing the calcium carbide remaining on the screen into the crusher again. The steps (A) to (C) are conducted in an inert gas atmosphere. The size of crushed granules to be obtained by the crusher is controlled so that the amount of the calcium carbide introduced into the crusher in the step (A) a and the amount of the calcium carbide passing through the screen in the step (B) b satisfy 1≤(a b)/b≤2.5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011183661 | 2011-08-25 | ||
| PCT/JP2012/052716 WO2013027426A1 (en) | 2011-08-25 | 2012-02-07 | Calcium carbide granules, process for producing calcium carbide granules, and system for producing calcium carbide granules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014MN00516A true IN2014MN00516A (en) | 2015-06-19 |
Family
ID=47746184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN516MUN2014 IN2014MN00516A (en) | 2011-08-25 | 2012-02-07 |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2749530B1 (en) |
| JP (1) | JP5909493B2 (en) |
| CN (1) | CN103764559B (en) |
| IN (1) | IN2014MN00516A (en) |
| WO (1) | WO2013027426A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754872B (en) * | 2013-12-17 | 2015-09-23 | 南京盛鹏炉料厂 | A kind of calcium carbide powder dry method granulation processes |
| CN107934967A (en) * | 2017-12-29 | 2018-04-20 | 神雾环保技术股份有限公司 | The system and method for coproduction ferrosilicon and calcium carbide |
| CN108313771A (en) * | 2018-04-12 | 2018-07-24 | 唐山三友氯碱有限责任公司 | It unloads for calcium carbide, feeding and broken device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1935567B2 (en) * | 1969-07-12 | 1971-05-13 | Knapsack AG, 5033 Hurth Knapsack | PROCESS FOR THE PRODUCTION OF CALCIUM CARBIDE OF CERTAIN QUALITY |
| DE2037758C3 (en) * | 1970-07-30 | 1979-08-02 | Hoechst Ag, 6000 Frankfurt | Process for the production of calcium carbide for the desulfurization of metal melts |
| FR2482578A1 (en) * | 1980-05-17 | 1981-11-20 | Hoechst Ag | PROCESS FOR COOLING MOLTEN CALCIUM CARBIDE AND APPARATUS FOR IMPLEMENTING SAID METHOD |
| JPS5888112A (en) * | 1981-11-16 | 1983-05-26 | ナシヨナル・リサ−チ・アンド・デイベロツプメント・インコ−ポレイテツイド | Manufacture of calcium carbide product |
| JPS61178412A (en) * | 1985-02-02 | 1986-08-11 | Agency Of Ind Science & Technol | Production of calcium carbide by blast furnace process |
| JP3622117B2 (en) * | 2002-08-28 | 2005-02-23 | 川崎重工業株式会社 | Impact crusher |
| FR2856611A1 (en) * | 2003-06-26 | 2004-12-31 | Heurgue Conseil S A | Grains crushing process for use in grinder, involves pouring out product evacuated from lower part of enclosure, on sieve, and recycling residue that is not crushed, to upper part of enclosure |
| CN100537723C (en) | 2007-02-08 | 2009-09-09 | 寿光新龙电化集团聚氯乙烯有限公司 | A kind of technology of producing acetylene gas by dry method |
| CN101195555A (en) * | 2007-03-06 | 2008-06-11 | 新疆天业（集团）有限公司 | Acetylene generating system of dry method |
| CN201195120Y (en) * | 2008-05-23 | 2009-02-18 | 邹功全 | Calcium carbide crusher with automatic deferrization |
-
2012
- 2012-02-07 IN IN516MUN2014 patent/IN2014MN00516A/en unknown
- 2012-02-07 CN CN201280041501.3A patent/CN103764559B/en active Active
- 2012-02-07 EP EP12826254.0A patent/EP2749530B1/en active Active
- 2012-02-07 JP JP2013529909A patent/JP5909493B2/en active Active
- 2012-02-07 WO PCT/JP2012/052716 patent/WO2013027426A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013027426A1 (en) | 2015-03-05 |
| EP2749530B1 (en) | 2018-01-24 |
| CN103764559A (en) | 2014-04-30 |
| EP2749530A1 (en) | 2014-07-02 |
| EP2749530A4 (en) | 2015-05-27 |
| WO2013027426A1 (en) | 2013-02-28 |
| JP5909493B2 (en) | 2016-04-26 |
| CN103764559B (en) | 2016-04-13 |
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