CS264959B1 - Method of non-dusting treatment of N-cyclohexyl-2-banziazolylsulphenamide based rubber accelerator - Google Patents
Method of non-dusting treatment of N-cyclohexyl-2-banziazolylsulphenamide based rubber accelerator Download PDFInfo
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- CS264959B1 CS264959B1 CS87529A CS52987A CS264959B1 CS 264959 B1 CS264959 B1 CS 264959B1 CS 87529 A CS87529 A CS 87529A CS 52987 A CS52987 A CS 52987A CS 264959 B1 CS264959 B1 CS 264959B1
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- cyclohexyl
- rubber accelerator
- aqueous suspension
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- banziazolylsulphenamide
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Abstract
Spósob neprášivej úpravy gumárenského urýchlovača na báze N-cyklohexyl-2- -benztiazolyl sulfénamidu, pri ktorom sa z jeho vodnej suspenzie získá jej filtračný koláč, na povrch ktorého sa přidává hydrogenačne rafinovaný olej vo formě hmly, filtračný koláč sa vysuší a zgranuluje.A method for dust-free treatment of a rubber accelerator based on N-cyclohexyl-2-benzothiazolyl sulfenamide, in which a filter cake is obtained from its aqueous suspension, onto the surface of which hydrotreated refined oil is added in the form of a mist, the filter cake is dried and granulated.
Description
264959 2264959 2
Vynález sa týká spůsobu neprášivej úpravy gumárenského urýchlovača na báze N-cyklohexyl--2-benztiazolyl sulfénamidu pomocou hydrogenačne rafinovaného oleja.The invention relates to a process for the non-dust treatment of a rubber accelerator based on N-cyclohexyl-2-benzothiazolyl sulfenamide by means of a hydrotreated oil.
Gumárenský urýchlovač na báze N-cyklohexyl-2-benztiazolyl sulfénamidu sa vyrába niekolko-násóbnou filtráoiou z jeho vodnéj suspenzie, pričom filtračný koláč sa dalej spracovávav granulačnej sústave, pozostávajúcej z kompaktora a dezintegrátora. Po oddělení prachovéhopodielu sa vlhký granulát suší.The N-cyclohexyl-2-benzothiazolyl sulfenamide-based rubber accelerator is produced by a few-time filtration from its aqueous suspension, the filter cake being further processed by a granulation system consisting of a compactor and a disintegrator. After separation of the dust component, the wet granulate is dried.
Nevýhoda tohoto urýchlovača spočívá v tom, že pri granulácii vzniká značný prachovýpodiel. Počas sušenia dochádza tiež k stratám materiálu v důsledku únosu sušiacim vzduchom.Zvyšok prachu prechádza do hotového produktu a spfisobuje ekologické aj technologické problémypri dalšom spracovaní hotového výrobku.The disadvantage of this accelerator is that a considerable dust fraction is produced during the granulation. There is also material loss during drying by drying air. The remainder of the dust passes into the finished product and causes environmental and technological problems in the further processing of the finished product.
Uvedený nedostatok rieši spůsob úpravy gumárenského urýchlovača na báze N-cyklohexyl--2-benztiazoly1 sulfénamidu podlá vynálezu, ktorého podstata spočívá v tom, že k vodnejsuspenzi N-cyklohexyl-2-benztiazolyl sulfénamidu a/alebo k jej filtračnému koláčů získanémupo přefiltrovaní tejto suspenzie sa přidá hydrogenačne rafinovaný olej o hustotě najmenej865 kg/m^, o bode vzplanutia najjnenej 212 °C, o bode tuhnutia najviac -12 °C, o kinematickejviskozite pri 50 °C 26 až 36 mm^/s, o viskozitnom indexe najmenej 90, vo formě hmly. Filtrač-ný koláč sa potom vysuší a zgranuluje.This problem is solved by a process for the treatment of a rubber accelerator based on N-cyclohexyl-2-benzothiazolyl sulfenamide according to the invention, characterized in that the aqueous suspension of N-cyclohexyl-2-benzothiazolyl sulfenamide and / or its filter cake obtained by filtration of the suspension is add hydrotreated oil of a density of at least 865 kg / m ^, the flash point of 212 ° C, the freezing point of not more than -12 ° C, the kinematic viscosity at 50 ° C of 26 to 36 mm² / s, the viscosity index of at least 90, fog form. The filter cake is then dried and granulated.
Nový a vyšší účinok takejto úpravy gumárenského urýchlovača spočívá v tom, že hydrogenač-ne rafinovaný olej přidaný do suspenzie, alebo na povrch filtračného koláča zvyšuje kompakt-nost a celistvost produktu lisovaného v granulačnej sústave, znižuje tak vznik prachovéhopodielu počas granulácie a zlepšuje spracovatelské vlastnosti hotového výrobku.The new and higher effect of such a rubber accelerator treatment is that the hydrotreated oil added to the slurry, or to the surface of the filter cake, increases the compactness and integrity of the granulation product, thereby reducing dust formation during granulation and improving the processing properties of the finished product.
Spůsob neprášivej úpravy gumárenského urýchlovača na báze N-cyklohexyl-2-benztiazolylsulfénamidu podlá vynálezu možno vysvětlit na nasledovných príkladoch. Příklad 1The non-dusting treatment of the N-cyclohexyl-2-benzothiazolylsulphenamide-based rubber accelerator according to the invention can be explained by the following examples. Example 1
Vodná suspenzia N-cyklohexyl-2-benztiazolyl sulfénamidu sa kontinuálně privádza napovrch rotačného bubnového filtra. Na povrch filtračného koláča sa kontinuálně nanášav hmotnostnom pomere 1% až 3% vzhl‘adom na sušinu hydrogenačne rafinovaný olej rozptýlenýna hmlu. Filtračný koláč sa zrezáva, suší a granuluje. Příklad 2An aqueous suspension of N-cyclohexyl-2-benzothiazolyl sulfenamide is fed continuously through the surface of the rotary drum filter. Hydrogen-refined mist-dispersed oil is continuously applied to the surface of the filter cake by a weight ratio of 1% to 3% on a dry basis. The filter cake is cut, dried and granulated. Example 2
Do prietokovej nádoby sa kontinuálně přidává vodná suspenzia N-cyklohexyl-2-benztiazo-lyl sulfénamidu a za miešania sa kontinuálně přidává v hmotnostnom pomere 1% až 3% vzhladomna sušinu hydrogenačne rafinovaný olej rozptýlený na hmlu. Suspenzia sa dalej kontinuálněfiltruje, filtračný koláč sa zrezáva, suší a granuluje. Příklad 3An aqueous suspension of N-cyclohexyl-2-benzothiazolyl sulfenamide is continuously added to the flow vessel and hydrogenated oil dispersed in the mist is continuously added with stirring at a rate of 1% to 3% relative to dry weight. The suspension is continuously filtered, the filter cake is cut, dried and granulated. Example 3
Prvý podiel hydrogenačne rafinovaného oleja sa přidává do vaničky kontinuálneho bubnové-ho rotačného filtra, do ktorej sa kontinuálně privádza vodná suspenzia N-cyklohexyl-2-benztia-zolyl sulfénamidu, druhý podiel hydrogenačne rafinovaného oleja sa přidává na povrch tohotofiltra vo formě hmly, pričom úhrnný podiel oleja je 1% až 3% vzhladom na sušinu. Filtračnýkoláč sa zrezáva, suší a granuluje.The first portion of the hydrotreated oil is added to a continuous drum rotary filter tray, into which an aqueous suspension of N-cyclohexyl-2-benzothiazolyl sulfenamide is continuously fed, the second portion of the hydrotreated oil being added to the surface of this filter in the form of a mist, wherein the proportion of oil is 1% to 3% based on dry matter. The filter cake is cut, dried and granulated.
Vynález možno využit pri výrobě gumárenského urýchlovača na báze N-cyklohexyl-2-benztiazo-lyl sulfénamidu.The invention can be used in the manufacture of a rubber accelerator based on N-cyclohexyl-2-benzothiazolyl sulfenamide.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS87529A CS264959B1 (en) | 1987-01-26 | 1987-01-26 | Method of non-dusting treatment of N-cyclohexyl-2-banziazolylsulphenamide based rubber accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS87529A CS264959B1 (en) | 1987-01-26 | 1987-01-26 | Method of non-dusting treatment of N-cyclohexyl-2-banziazolylsulphenamide based rubber accelerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS52987A1 CS52987A1 (en) | 1989-01-12 |
| CS264959B1 true CS264959B1 (en) | 1989-09-12 |
Family
ID=5337527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS87529A CS264959B1 (en) | 1987-01-26 | 1987-01-26 | Method of non-dusting treatment of N-cyclohexyl-2-banziazolylsulphenamide based rubber accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS264959B1 (en) |
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1987
- 1987-01-26 CS CS87529A patent/CS264959B1/en unknown
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| Publication number | Publication date |
|---|---|
| CS52987A1 (en) | 1989-01-12 |
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