US3818004A - Production of sodium dichloroisocyanurate dihydrate - Google Patents

Production of sodium dichloroisocyanurate dihydrate Download PDF

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Publication number
US3818004A
US3818004A US00322379A US32237973A US3818004A US 3818004 A US3818004 A US 3818004A US 00322379 A US00322379 A US 00322379A US 32237973 A US32237973 A US 32237973A US 3818004 A US3818004 A US 3818004A
Authority
US
United States
Prior art keywords
percent
sodium dichloroisocyanurate
water
dihydrate
production
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
Application number
US00322379A
Other languages
English (en)
Inventor
S Berkowitz
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.)
FMC Corp
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.)
Filing date
Publication date
Application filed by FMC Corp filed Critical FMC Corp
Priority to US00322379A priority Critical patent/US3818004A/en
Priority to CA188,766A priority patent/CA1010450A/en
Priority to JP49005016A priority patent/JPS4995986A/ja
Priority to IT19191/74A priority patent/IT1006796B/it
Priority to BE139629A priority patent/BE809522A/xx
Priority to CH18674A priority patent/CH583717A5/xx
Priority to NL7400283A priority patent/NL7400283A/xx
Priority to GB98474A priority patent/GB1418426A/en
Priority to DE2400959A priority patent/DE2400959A1/de
Priority to FR7400739A priority patent/FR2323687A1/fr
Priority to SE7400280A priority patent/SE410601B/xx
Priority to ZA740186A priority patent/ZA74186B/xx
Priority to ES422159A priority patent/ES422159A1/es
Application granted granted Critical
Publication of US3818004A publication Critical patent/US3818004A/en
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.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen

Definitions

  • the product When at least about 11 percent of water has been added (half dihydrate half monohydrate), the product is-sufficiently stable so that the material will not selfpropagate additional heat when subjected to a source of intense heat, such as a hot wire. More than minimal quantities of free moisture (that above 14.1 percent) should be avoided, as free moisture tends to react with the product.
  • the maximum temperature for safe operation is 50C; I prefer to operate at 40C or less. Any temperature above the freezing point of water is operable, although temperatures below ambient are uneconomic.
  • Typical of the apparatus which can be used to effect hydration is the Patterson-Kelly liquid-cooled Twin Shell Liquids-Solids Blender. I have also successfully used a fine spray of water'directed into a cooled ribbon blender in which the anhydrous material was being agitated, a rotating tray with air cooling, and a vibrating Sweco screen.
  • the dihydrate is quite stable at temperatures well above 50C, so that the temperature control can be eased once hydration is complete. However, it is generally convenient to maintain temperature control through most of the reaction period.
  • the product is hydrated to the point where it does not burn, i.e., where it contains at least about 1 1.0 percent of water. It may contain up to about 14.1 percent of water; more than a minor quantity of free water should be avoided.
  • Example 1 An 8 quart Patterson-Kelly Twin-Shell air-cooled Liquids-Solids Blender was charged with 2,268 grams of anhydrous granular sodium dichloroisocyanurate (20 mesh).
  • Example 2 Example 1 was repeated, hydrating to monohydrate, 11.0 percent water, and 12 percent water. The products were tested, along with the anhydrous material, by embedding an 18-gage nichrome wire in a 25 gram sample, and passing a current through the wire for several seconds, until the material in contact with the wire was decomposed. The current was then turned off.
  • roisocyanurate containing less than 1 1 percent by weight of water under such conditions that the temperature of the mix is maintained above the freezing point of water and not in excess of 50C, to obtain a product containing between 1 1 percent and 14.1 percent by weight of water of hydration.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
US00322379A 1973-01-10 1973-01-10 Production of sodium dichloroisocyanurate dihydrate Expired - Lifetime US3818004A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00322379A US3818004A (en) 1973-01-10 1973-01-10 Production of sodium dichloroisocyanurate dihydrate
CA188,766A CA1010450A (en) 1973-01-10 1973-12-21 Production of sodium dichloroisocyanurate dihydrate
JP49005016A JPS4995986A (it) 1973-01-10 1974-01-07
BE139629A BE809522A (fr) 1973-01-10 1974-01-08 Procede pour l'obtention de dichloroisocyanurate de sodium stable au stockage
CH18674A CH583717A5 (it) 1973-01-10 1974-01-08
IT19191/74A IT1006796B (it) 1973-01-10 1974-01-08 Processo per la produzione di sodio dicloroisocianurato diidrato
NL7400283A NL7400283A (it) 1973-01-10 1974-01-09
GB98474A GB1418426A (en) 1973-01-10 1974-01-09 Production of sodium dichloroisocyanurate dihydrate
DE2400959A DE2400959A1 (de) 1973-01-10 1974-01-09 Verfahren zur herstellung von natriumdichlorisocyanurat-dihydrat
FR7400739A FR2323687A1 (fr) 1973-01-10 1974-01-09 Procede pour l'obtention de dichloroisocyanurate de sodium stable au stockage
SE7400280A SE410601B (sv) 1973-01-10 1974-01-09 Forfarande for framstellning av en lagringsstabil hydratiserad natriumdiklorisocyanuratprodukt
ZA740186A ZA74186B (en) 1973-01-10 1974-01-10 Production of sodium dichloroisocyanurate dihydrate
ES422159A ES422159A1 (es) 1973-01-10 1974-01-10 Procedimiento para producir dicloroisocianurato sodico es- table en almacenamiento.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00322379A US3818004A (en) 1973-01-10 1973-01-10 Production of sodium dichloroisocyanurate dihydrate

Publications (1)

Publication Number Publication Date
US3818004A true US3818004A (en) 1974-06-18

Family

ID=23254633

Family Applications (1)

Application Number Title Priority Date Filing Date
US00322379A Expired - Lifetime US3818004A (en) 1973-01-10 1973-01-10 Production of sodium dichloroisocyanurate dihydrate

Country Status (13)

Country Link
US (1) US3818004A (it)
JP (1) JPS4995986A (it)
BE (1) BE809522A (it)
CA (1) CA1010450A (it)
CH (1) CH583717A5 (it)
DE (1) DE2400959A1 (it)
ES (1) ES422159A1 (it)
FR (1) FR2323687A1 (it)
GB (1) GB1418426A (it)
IT (1) IT1006796B (it)
NL (1) NL7400283A (it)
SE (1) SE410601B (it)
ZA (1) ZA74186B (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985744A (en) * 1973-03-19 1976-10-12 Fmc Corporation Production of granular sodium dichloroisocyanurate
US4182871A (en) * 1978-02-27 1980-01-08 Niro Atomizer A/S Process for spray drying sodium dichloroisocyanurate
US4247988A (en) * 1979-10-01 1981-02-03 Fmc Corporation Process for removing excess water from active chlorine compounds
US4503225A (en) * 1982-07-26 1985-03-05 Chemie Linz Aktiengesellschaft Process for the preparation of free-flowing, coarsely crystalline sodium dichloroisocyanurate dihydrate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035056A (en) * 1962-05-15 Potassium dichloroisocyanurate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035056A (en) * 1962-05-15 Potassium dichloroisocyanurate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985744A (en) * 1973-03-19 1976-10-12 Fmc Corporation Production of granular sodium dichloroisocyanurate
US4182871A (en) * 1978-02-27 1980-01-08 Niro Atomizer A/S Process for spray drying sodium dichloroisocyanurate
US4247988A (en) * 1979-10-01 1981-02-03 Fmc Corporation Process for removing excess water from active chlorine compounds
US4503225A (en) * 1982-07-26 1985-03-05 Chemie Linz Aktiengesellschaft Process for the preparation of free-flowing, coarsely crystalline sodium dichloroisocyanurate dihydrate

Also Published As

Publication number Publication date
CA1010450A (en) 1977-05-17
ES422159A1 (es) 1976-04-16
GB1418426A (en) 1975-12-17
FR2323687A1 (fr) 1977-04-08
NL7400283A (it) 1974-07-12
JPS4995986A (it) 1974-09-11
SE410601B (sv) 1979-10-22
IT1006796B (it) 1976-10-20
CH583717A5 (it) 1977-01-14
FR2323687B1 (it) 1978-02-17
DE2400959A1 (de) 1974-07-18
ZA74186B (en) 1974-11-27
BE809522A (fr) 1974-07-08

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Legal Events

Date Code Title Description
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