US3886249A - Production of granular sodium dichloroisocyanurate - Google Patents

Production of granular sodium dichloroisocyanurate Download PDF

Info

Publication number: US3886249A
Authority: US; United States
Prior art keywords: sodium dichloroisocyanurate; granules; water; powder; rolls
Prior art date: 1973-03-19
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

Application number

US342511A

Other languages

English (en)

Inventor

James L Manganaro

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Olin Corp

Original Assignee

FMC Corp

Priority date (The priority date 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 date listed.)

1973-03-19

Filing date

1973-03-19

Publication date

1975-05-27

1973-03-19 Application filed by FMC Corp filed Critical FMC Corp

1973-03-19 Priority to US342511A priority Critical patent/US3886249A/en

1974-02-26 Priority to CA193,522A priority patent/CA1022553A/en

1974-03-13 Priority to IT67731/74A priority patent/IT1020542B/it

1974-03-14 Priority to DE2412262A priority patent/DE2412262C3/de

1974-03-14 Priority to JP49028679A priority patent/JPS49125381A/ja

1974-03-15 Priority to FR7408837A priority patent/FR2222377B1/fr

1974-03-18 Priority to BE142138A priority patent/BE812460A/fr

1974-03-18 Priority to ES424397A priority patent/ES424397A1/es

1974-03-18 Priority to NL7403580A priority patent/NL7403580A/xx

1974-03-18 Priority to GB1195774A priority patent/GB1417813A/en

1975-03-13 Priority to US05/558,092 priority patent/US3985744A/en

1975-05-27 Application granted granted Critical

1975-05-27 Publication of US3886249A publication Critical patent/US3886249A/en

1985-10-11 Assigned to OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, CT. 06904, A CORP. OF VA. reassignment OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, CT. 06904, A CORP. OF VA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FMC CORPORATION, 2000 MARKET STREET, PHILADELPHIA, PA., A CORP. OF DE.

1992-05-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

CEJLBZWIKQJOAT-UHFFFAOYSA-N dichloroisocyanuric acid Chemical compound ClN1C(=O)NC(=O)N(Cl)C1=O CEJLBZWIKQJOAT-UHFFFAOYSA-N 0.000 title claims description 20
238000004519 manufacturing process Methods 0.000 title description 9
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
239000008187 granular material Substances 0.000 claims abstract description 15
239000000463 material Substances 0.000 claims description 12
238000000034 method Methods 0.000 claims description 10
230000036571 hydration Effects 0.000 claims description 5
238000006703 hydration reaction Methods 0.000 claims description 5
239000000843 powder Substances 0.000 abstract description 7
239000000203 mixture Substances 0.000 abstract description 6
MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 abstract description 4
238000012216 screening Methods 0.000 abstract description 2
238000007906 compression Methods 0.000 description 6
230000006835 compression Effects 0.000 description 6
239000002245 particle Substances 0.000 description 4
238000000354 decomposition reaction Methods 0.000 description 3
239000000460 chlorine Substances 0.000 description 2
238000005469 granulation Methods 0.000 description 2
230000003179 granulation Effects 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
239000007787 solid Substances 0.000 description 2
238000005979 thermal decomposition reaction Methods 0.000 description 2
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
239000007844 bleaching agent Substances 0.000 description 1
238000005660 chlorination reaction Methods 0.000 description 1
229910052801 chlorine Inorganic materials 0.000 description 1
238000005056 compaction Methods 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
238000011109 contamination Methods 0.000 description 1
239000003599 detergent Substances 0.000 description 1
150000004683 dihydrates Chemical class 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000000314 lubricant Substances 0.000 description 1
239000010687 lubricating oil Substances 0.000 description 1
238000012544 monitoring process Methods 0.000 description 1
238000012545 processing Methods 0.000 description 1
239000002994 raw material Substances 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
230000009182 swimming Effects 0.000 description 1

Images

Classifications

- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent

Definitions

the granular material may be UNITED STATES PATENTS dried, if desired, to anhydrous granules, or used in hyd t d f 2,755,509 7/1956 Smidth 264/140 Ta 6 orm 3,071,816 l/1963 Allen et al.
Sodium dichloroisocyanurate is widely used as a source of available chlorine in solid bleach and detergent compositions. and in chlorination of water in swimming pools. It is desirably sold as granules to 70 mesh U.S. standard screen). Since it is generally recovered from manufacturing operations as a powder in the 200 to 400 mesh size range, it is necessary to pelletize the fine material. This may be done by highpressure tableting, followed by crushing, or by sheeting in a roll compactor into corrugated, readily frangible sheets, which are then broken down to granules in any convenient machine.
a principal problem is that of excessive fines production. requiring recycle rates of 60 to 80%, where a +70 mesh granule is desired.
a second prob lem is that temperature control is essential in the process, since anhydrous sodium dichloroisocyanurate is known to undergo heat-induced decomposition. In order to prevent such decomposition, which can result in actual fires, careful monitoring of the process is required. Additionally, it is essential to avoid contamination of the product with organics such as lubricating oil, since this can cause thermal decomposition of the product.
the drawing shows schematically the apparatus used in the practice of this invention.
the invention herein involves the sheeting of hydrated powdered sodium dichloroisocyanurate, and the breaking-up of the sheets into granules.
the process involves apparatus hitherto used in the granulation of anhydrous sodium dichloroisocyanurate; the apparatus is shown in the drawing.
the powdered salt is fed into a hopper 10, and by means of feed screws 12 and 14 into the bite between a fixed roll 16 and a compression roll 18, which is forced against the fixed roll 16 by a compression assembly 20.
the sheet of salt 22 which results is fed into a granulator 24 which breaks up the sheet into granules and powder; the product is removed at 26, and is then screened.
the roll 18 may be smooth or otherwise designed. as in the form of a sine wave, to produce the particle size desired for the granulated sodium dichloroisocyanurate product.
a typical 4 inch sine wave which has about ten complete inch sine waves in it, about A inch deep. produces a corrugated sheet which breaks up into mainly -10 product.
the roll 18 is forced against the roll 16 by about 7,500 i 50% pounds of force per linear inch of roll.
the granulator 24 may be any device which will break up the continuous sheet which is fed from the roller. Since the sheet is readily friable, a simple hammer mill will work, or a mill with simple rotating shear blades (e.g. a Fitz mill).
EXAMPLE 1 The same compactor rolls and granulator, at the same settings as in Example A were fed with the same raw material, first hydrated with 14.1% of water (the dihydrate); the material had the same particle size distribution as the original material. The product resulting had the following particle size distribution:
Example 1 was repeated, except the feed contained 12.6% of water, and the rolls were set at a force of about 8,000 pounds per linear inch of roll. The results were as follows:
the product can be used as it comes from the process, or it can be dehydrated to produce the anhydrous product.

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Oil, Petroleum & Natural Gas (AREA)
Wood Science & Technology (AREA)
Organic Chemistry (AREA)
Glanulating (AREA)
Detergent Compositions (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)

US342511A 1973-03-19 1973-03-19 Production of granular sodium dichloroisocyanurate Expired - Lifetime US3886249A (en)

Priority Applications (11)

Application Number	Priority Date	Filing Date	Title
US342511A US3886249A (en)	1973-03-19	1973-03-19	Production of granular sodium dichloroisocyanurate
CA193,522A CA1022553A (en)	1973-03-19	1974-02-26	Production of granular sodium dichloroisocyanurate
IT67731/74A IT1020542B (it)	1973-03-19	1974-03-13	Metodo per la produzione di sodio dicloroisocianurato granulare
DE2412262A DE2412262C3 (de)	1973-03-19	1974-03-14	Verfahren zur Herstellung von granuliertem Natriumdichlorisocyanurat
JP49028679A JPS49125381A (fr)	1973-03-19	1974-03-14
FR7408837A FR2222377B1 (fr)	1973-03-19	1974-03-15
BE142138A BE812460A (fr)	1973-03-19	1974-03-18	Production de dichloroisocyanurate de sodium granulaire
ES424397A ES424397A1 (es)	1973-03-19	1974-03-18	Procedimiento para producir dicloroisocianurato sodico gra-nulado.
NL7403580A NL7403580A (fr)	1973-03-19	1974-03-18
GB1195774A GB1417813A (en)	1973-03-19	1974-03-18	Production of granular sodium dichloroisocyanurate
US05/558,092 US3985744A (en)	1973-03-19	1975-03-13	Production of granular sodium dichloroisocyanurate

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US342511A US3886249A (en)	1973-03-19	1973-03-19	Production of granular sodium dichloroisocyanurate

Related Child Applications (1)

Application Number	Title	Priority Date	Filing Date
US05/558,092 Continuation-In-Part US3985744A (en)	1973-03-19	1975-03-13	Production of granular sodium dichloroisocyanurate

Publications (1)

Publication Number	Publication Date
US3886249A true US3886249A (en)	1975-05-27

Family

ID=23342152

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US342511A Expired - Lifetime US3886249A (en)	1973-03-19	1973-03-19	Production of granular sodium dichloroisocyanurate

Country Status (10)

Country	Link
US (1)	US3886249A (fr)
JP (1)	JPS49125381A (fr)
BE (1)	BE812460A (fr)
CA (1)	CA1022553A (fr)
DE (1)	DE2412262C3 (fr)
ES (1)	ES424397A1 (fr)
FR (1)	FR2222377B1 (fr)
GB (1)	GB1417813A (fr)
IT (1)	IT1020542B (fr)
NL (1)	NL7403580A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4261942A (en) *	1978-10-30	1981-04-14	Shikoku Kasei Kogyo Co., Ltd.	Production of tablets of sodium dichloroisocyanurate
US4296051A (en) *	1978-10-23	1981-10-20	Shikoku Kasei Kogyo Co., Ltd.	Method of producing granular sodium dichloroisocyanurate
US4439384A (en) *	1981-12-16	1984-03-27	Maschinenfabrick Koppern Gmbh & Co. Kg	Method for manufacturing graules from potassium chloride fines
US4925382A (en) *	1988-01-26	1990-05-15	Maschinenfabrik Koppern Gmbh & Co. Kg	Roller press for compacting fine-grained salts into sheets
US5114647A (en) *	1991-02-01	1992-05-19	Olin Corporation	Effervescent tablets having increased disintegration rates
US6513424B1 (en) *	1998-04-09	2003-02-04	Freund Industrial Co., Ltd.	Device and method for processing powder and granular material
US10351450B2 (en) *	2015-06-03	2019-07-16	Techcross Inc.	Ballast water treatment system by using NaDCC

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR0171868B1 (ko) *	1989-09-07	1999-02-01	하인쯔 모저; 비트 라우버	고체 시아누르클로리드의 유동성 개선방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2755509A (en) *	1950-07-13	1956-07-24	American Viscose Corp	Process for producing densified granular thermosetting molding compositions
US3071816A (en) *	1960-01-19	1963-01-08	Pittsburgh Plate Glass Co	Calcium chloride manufacture
US3548046A (en) *	1967-11-13	1970-12-15	Shell Oil Co	Granulation of oil-coated water-soluble fine particle of potash material

1973
- 1973-03-19 US US342511A patent/US3886249A/en not_active Expired - Lifetime
1974
- 1974-02-26 CA CA193,522A patent/CA1022553A/en not_active Expired
- 1974-03-13 IT IT67731/74A patent/IT1020542B/it active
- 1974-03-14 DE DE2412262A patent/DE2412262C3/de not_active Expired
- 1974-03-14 JP JP49028679A patent/JPS49125381A/ja active Pending
- 1974-03-15 FR FR7408837A patent/FR2222377B1/fr not_active Expired
- 1974-03-18 BE BE142138A patent/BE812460A/fr unknown
- 1974-03-18 NL NL7403580A patent/NL7403580A/xx not_active Application Discontinuation
- 1974-03-18 ES ES424397A patent/ES424397A1/es not_active Expired
- 1974-03-18 GB GB1195774A patent/GB1417813A/en not_active Expired

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2755509A (en) *	1950-07-13	1956-07-24	American Viscose Corp	Process for producing densified granular thermosetting molding compositions
US3071816A (en) *	1960-01-19	1963-01-08	Pittsburgh Plate Glass Co	Calcium chloride manufacture
US3548046A (en) *	1967-11-13	1970-12-15	Shell Oil Co	Granulation of oil-coated water-soluble fine particle of potash material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4296051A (en) *	1978-10-23	1981-10-20	Shikoku Kasei Kogyo Co., Ltd.	Method of producing granular sodium dichloroisocyanurate
US4261942A (en) *	1978-10-30	1981-04-14	Shikoku Kasei Kogyo Co., Ltd.	Production of tablets of sodium dichloroisocyanurate
US4439384A (en) *	1981-12-16	1984-03-27	Maschinenfabrick Koppern Gmbh & Co. Kg	Method for manufacturing graules from potassium chloride fines
US4925382A (en) *	1988-01-26	1990-05-15	Maschinenfabrik Koppern Gmbh & Co. Kg	Roller press for compacting fine-grained salts into sheets
US5114647A (en) *	1991-02-01	1992-05-19	Olin Corporation	Effervescent tablets having increased disintegration rates
US6513424B1 (en) *	1998-04-09	2003-02-04	Freund Industrial Co., Ltd.	Device and method for processing powder and granular material
US10351450B2 (en) *	2015-06-03	2019-07-16	Techcross Inc.	Ballast water treatment system by using NaDCC

Also Published As

Publication number	Publication date
NL7403580A (fr)	1974-09-23
DE2412262C3 (de)	1979-12-06
GB1417813A (en)	1975-12-17
FR2222377A1 (fr)	1974-10-18
CA1022553A (en)	1977-12-13
DE2412262A1 (de)	1974-09-26
BE812460A (fr)	1974-09-18
JPS49125381A (fr)	1974-11-30
FR2222377B1 (fr)	1977-09-30
IT1020542B (it)	1977-12-30
DE2412262B2 (de)	1979-04-12
ES424397A1 (es)	1976-06-01

Legal Events

Date

Code

Title

Description

1985-10-11

AS

Assignment

Owner name: OLIN CORPORATION, 120 LONG RIDGE ROAD, STAMFORD, C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FMC CORPORATION, 2000 MARKET STREET, PHILADELPHIA, PA., A CORP. OF DE.;REEL/FRAME:004467/0590

Effective date: 19850816

1986-07-02

STCF

Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

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US3886249A - Production of granular sodium dichloroisocyanurate - Google Patents

Info

Links

Images

Classifications

Definitions

Landscapes

Priority Applications (11)

Applications Claiming Priority (1)

Related Child Applications (1)

Publications (1)

Family

ID=23342152

Family Applications (1)

Country Status (10)

Cited By (7)

Families Citing this family (1)

Citations (3)

Patent Citations (3)

Cited By (7)

Also Published As

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