SK284832B6 - Method of treatment of filter cake from filtration of polymer polyols - Google Patents

Method of treatment of filter cake from filtration of polymer polyols Download PDF

Info

Publication number
SK284832B6
SK284832B6 SK1800-2001A SK18002001A SK284832B6 SK 284832 B6 SK284832 B6 SK 284832B6 SK 18002001 A SK18002001 A SK 18002001A SK 284832 B6 SK284832 B6 SK 284832B6
Authority
SK
Slovakia
Prior art keywords
filter cake
polyether polyol
treating
production
filter
Prior art date
Application number
SK1800-2001A
Other languages
Slovak (sk)
Other versions
SK18002001A3 (en
Inventor
Vladimír Fučík
Peter Ilka
Michal Antal
Original Assignee
Ekorad, S. R. O.
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 Ekorad, S. R. O. filed Critical Ekorad, S. R. O.
Priority to SK1800-2001A priority Critical patent/SK284832B6/en
Publication of SK18002001A3 publication Critical patent/SK18002001A3/en
Publication of SK284832B6 publication Critical patent/SK284832B6/en

Links

Classifications

    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Polyethers (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

There is described a method of treatment of filter cake from manufacturing of polyetherpolyol by which filter material - expanded SiO2 and filter diatomaceous earth contaminated by alkali salt and polyetherpolyol is in the presence of water exposed to temperature from 80 to 85 °C and consequently is solute alkali salt, filter diatomaceous earth and expanded silicon dioxide saturates to aqueous phase by formation surface polyetherpolyol layer.

Description

Vynález sa týka spôsobu úpravy filtračného koláča z filtrácie polymémych polyolov. Vynález patrí do oblasti zhodnocovania a zneškodňovania nebezpečných odpadov.The invention relates to a method for treating a filter cake from the filtration of polymeric polyols. The invention belongs to the field of recovery and disposal of hazardous waste.

Doterajší stav technikyBACKGROUND OF THE INVENTION

V súčasnosti sa pri výrobe polymémych polyolov a ich konečnom čistení používa ako náhrada za extrakciu filtrácia, pričom dochádza k tvorbe filtračného koláča. Problém však nastáva so zneškodňovaním tohto filtračného koláča, a to hlavne z dôvodu vysokého obsahu polymémych polyolov.At present, filtration and the production of a filter cake are used as a substitute for extraction in the production of polymer polyols and their final purification. However, the problem arises with the disposal of this filter cake, mainly because of the high content of polymer polyols.

Takto vzniknutý odpad s obsahom 30 až 40 % hmotn. polymémych polyolov je možné zneškodniť spaľovaním alebo úpravou. Spaľovanie odpadu s obsahom 60 až 70 % hmotn. anorganických látok je ekonomicky nákladné. Vzhľadom na skutočnosť, že ide o odpad s vysokým obsahom fosforu, dochádzalo by k vypadávaniu výmurovky pece spaľovne.The resulting waste with a content of 30 to 40 wt. Polymeric polyols can be destroyed by incineration or treatment. Incineration of waste containing 60 to 70 wt. of inorganic substances is economically expensive. Given that this is a waste with a high phosphorus content, the lining of the incinerator furnace would fall out.

Keďže v súčasnosti nie je doriešený ekonomicky výhodný a ekologicky vhodný spôsob úpravy odpadov s obsahom polymémych polyolov, bolo nutné tento problém riešiť, čo napokon vyústilo do spôsobu úpravy filtračného koláča podľa tohto vynálezuSince the economically advantageous and ecologically acceptable method of treating wastes containing polymeric polyols is currently not solved, this problem has to be solved, which ultimately resulted in the method of treating the filter cake of the present invention.

Podstata vynálezuSUMMARY OF THE INVENTION

Uvedené nedostatky do značnej miery odstraňuje spôsob úpravy filtračného koláča s obsahom 40 až 60 % hmotn. alkalických solí dvojfosforečnanu (P2O7)4', 30 až 40 % hmotn. polyéterpolyolu, 3 až 10 % hmotn. kremeliny (Mg Si O3), 5 až 10 % hmotn. expandovaného oxidu kremičitého (perlitu) tak, aby obsah polymémych polyolov bol minimálny. Podstata vynálezu spočíva v tom, že k filtračnému koláču sa pridá voda v hmotnostnom pomere 0,5 : 1 až 4 : 1 a za stáleho miešania sa zmes zohrieva na teplotu 80 až 85 °C. Taktiež je možné v prvom kroku úpravy nadávkovať odpad - filtračný koláč do vyhriatej vody na 50 až 60 °C. Je možné po 20 až 40 minútach celý obsah prečerpať do deliacej kolóny a nechať rozvrstviť. Po vychladení na 30 až 35 °C sa vodná vrstva oddelí od vrstvy polyéterpolyolu. Rozpustná soľ alkalického dvojfosforečnanu, filtračná kremelina a expandovaný oxid kremičitý prejde do vodnej fázy a na povrchu vynikne vrstva polyéterpolyolu. Po oddelení fáz sa tieto samostatne spracuj ú.The aforementioned drawbacks are largely eliminated by a process for treating a filter cake containing 40 to 60 wt. alkali metal salts of pyrophosphate (P 2 O 7) 4 ', 30 to 40% by weight. % polyether polyol, 3 to 10 wt. % diatomaceous earth (Mg SiO 3 ), 5 to 10 wt. expanded silica (perlite) so that the content of polymer polyols is minimal. SUMMARY OF THE INVENTION The invention is based on the addition of water to the filter cake in a weight ratio of 0.5: 1 to 4: 1 and with stirring, the mixture is heated to a temperature of 80 to 85 ° C. It is also possible in the first treatment step to dispense the waste - filter cake into heated water at 50 to 60 ° C. After 20 to 40 minutes, the entire contents can be pumped into a separating column and stratified. After cooling to 30-35 ° C, the aqueous layer is separated from the polyether polyol layer. The soluble alkaline diphosphate salt, filter diatomaceous earth and expanded silica are transferred to the aqueous phase and a layer of polyether polyol will excel on the surface. After phase separation, these are separately processed.

Je výhodné, že po úprave filtračného koláča spôsobom podľa vynálezu sa môže ešte tento filtračný koláč využiť, kde jednoduchými technologickými operáciami sa docieli znovupoužitic 30 až 40 % hmotn. polyéterpolyolu jako suroviny, alebo je ho možné využiť na energetické účely s výhrevnosťou 29 000 kJ.kg'1, čo je hodnota výhrevnosti čierneho uhlia.It is advantageous that after the treatment of the filter cake by the method according to the invention, the filter cake can still be used, where by simple technological operations 30 to 40 wt. % of polyether polyol as feedstock, or can be used for energy purposes with a calorific value of 29,000 kJ.kg -1 , which is the calorific value of hard coal.

Alkalická soľ dvojfosforečnanu 55 % hmotn.% Alkaline dibasic salt 55 wt.

Polyéterpolyol 35 % hmotn.Polyether polyol 35 wt.

Filtračná kremelina 3 % hmotn.% Kieselguhr 3% wt.

Expandovaný oxid kremičitý 7 % hmotn.Expanded silica 7 wt.

Do vyhriatej vody na 50 až 60 °C sa v prvom kroku úpravy nadávkoval odpad - filtračný koláč v hmotnostnom pomere 1:1. Zmes sa za stáleho miešania vyhriala na 80 až 85 °C. Rozpustná soľ alkalického dvojfosforečnanu, filtračná kremelina a expandovaný oxid kremičitý prejde do vodnej fázy a na povrchu vznikne vrstva polyéterpolyolu. Po 30 minútach sa celý obsah prečerpá do deliacej kolóny a nechá sa rozvrstviť. Po vychladení na 30 až 35 °C sa vodná vrstva oddelí od vrstvy polyéterpolyolu.In the first treatment step, the waste-filter cake was added to the heated water at 50-60 ° C in a 1: 1 weight ratio. The mixture was heated to 80-85 ° C with stirring. The soluble alkaline diphosphate salt, filter diatomaceous earth and expanded silica are transferred to the aqueous phase and a layer of polyether polyol is formed on the surface. After 30 minutes, the entire contents are pumped to a separating column and allowed to stratify. After cooling to 30-35 ° C, the aqueous layer is separated from the polyether polyol layer.

Oddelený polyéterpolyol sa vyznačoval nasledovným zložením:Separated polyether polyol was characterized by the following composition:

Obsah vody podľa Fischera 0,0165 % hmotn.Fischer water content 0.0165 wt.

Spalne teplo a výhrevnosť 28 935 kj. kg'1 Combustion heat and net calorific value 28 935 kj. kg ' 1

Bod vzplanutia podľa Clevelanda 232 °CCleveland flash point 232 ° C

Priemyselná využiteľnosťIndustrial usability

Spôsob úpravy filtračného koláča znehodnoteného dvojfosforečnanom a polyéterpolyolom podľa predloženého vynálezu nachádza uplatnenie v technologickom procese výroby polyéterpolyolov, najmä pri výrobe Slovapropu.The process of treating a filter cake devalued with diphosphate and polyether polyol according to the present invention finds application in the technological process for the production of polyether polyols, in particular in the production of Slovaprop.

Claims (4)

1. Spôsob úpravy filtračného koláča z výroby polyéterpolyolu s obsahom alkalickej soli dvojfosforečnanu, polyéterpolyolu, filtračnej kremeliny a expandovaného oxidu kremičitého, vyznačujúci sa tým, že dávkovaním sa vytvorí zmes vody a filtračného koláča v ich hmotnostnom pomere 0,5 : 1 až 4 : 1 a následne sa zahreje na teplotu 80 až 85 °C, čim sa uvolní polyéterpolyol.A process for treating a filter cake from the production of a polyether polyol containing an alkali salt of diphosphate, polyether polyol, filter diatomaceous earth and expanded silica, characterized in that by metering, a mixture of water and filter cake in their weight ratio of 0.5: 1 to 4: 1 is formed. and then heated to 80-85 ° C to release the polyether polyol. 2. Spôsob úpravy filtračného koláča z výroby polyéterpolyolu podľa nároku 1, vyznačujúci sa t ý m , že v procese zahrievania vody a filtračného koláča na teplotu 80 až 85 °C sa uskutočňuje ich miešanie.Process for treating a filter cake from the production of polyether polyol according to claim 1, characterized in that in the process of heating the water and filter cake to a temperature of 80 to 85 ° C, they are stirred. 3. Spôsob úpravy filtračného koláča z výroby polyéterpolyolu podľa nároku 1, vyznačujúci sa t ý m , že pri tvorbe zmesi vody a filtračného koláča má na vstupe voda teplotu 50 až 60 °C.A process for treating a filter cake from the production of polyether polyol according to claim 1, characterized in that, when forming a mixture of water and filter cake, the inlet water has a temperature of 50 to 60 ° C. 4. Spôsob úpravy filtračného koláča z výroby polyéterpolyolu podľa nároku 1, vyznačujúci sa t ý m , že po 20 až 40 minútach od dávkovania zmesi nasleduje prečerpanie upravenej zmesi do deliacej kolóny a jej ochladenie na teplotu 30 až 35 °C so samočinným oddelením polyéterpolyolu s možnosťou jeho následného využitia.4. A method for treating a filter cake from the production of polyether polyol according to claim 1, characterized in that 20 to 40 minutes after dosing the mixture is followed by pumping the treated mixture into a separating column and cooling it to 30-35 [deg.] C. with automatic separation of the polyether polyol. the possibility of its subsequent use. Koniec dokumentuEnd of document Príklady uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION V tomto príklade konkrétneho uskutočnenia vynálezu je opísaný spôsob úpravy filtračného koláča znehodnoteného polyéterpolyolom a dvojfosorečnanom podľa vynálezu, keď zložky upraveného odpadu budú využité. Na účely úpravy znehodnoteného filtračného koláča sa použil odpad nasledujúceho zloženia:In this example of a particular embodiment of the invention, a method of treating a filter cake devalued by the polyether polyol and bisphosphate according to the invention is described, when the components of the treated waste are recovered. For the treatment of the deteriorated filter cake, waste of the following composition was used:
SK1800-2001A 2001-12-06 2001-12-06 Method of treatment of filter cake from filtration of polymer polyols SK284832B6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SK1800-2001A SK284832B6 (en) 2001-12-06 2001-12-06 Method of treatment of filter cake from filtration of polymer polyols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SK1800-2001A SK284832B6 (en) 2001-12-06 2001-12-06 Method of treatment of filter cake from filtration of polymer polyols

Publications (2)

Publication Number Publication Date
SK18002001A3 SK18002001A3 (en) 2005-03-04
SK284832B6 true SK284832B6 (en) 2005-12-01

Family

ID=34215099

Family Applications (1)

Application Number Title Priority Date Filing Date
SK1800-2001A SK284832B6 (en) 2001-12-06 2001-12-06 Method of treatment of filter cake from filtration of polymer polyols

Country Status (1)

Country Link
SK (1) SK284832B6 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110325567B (en) 2017-01-25 2022-02-11 亨茨曼国际有限公司 Method for producing polyether polyols

Also Published As

Publication number Publication date
SK18002001A3 (en) 2005-03-04

Similar Documents

Publication Publication Date Title
Donatello et al. Recycling and recovery routes for incinerated sewage sludge ash (ISSA): A review
Zhang et al. Stabilization/solidification of municipal solid waste incineration fly ash via co-sintering with waste-derived vitrified amorphous slag
JP3368372B2 (en) Method for converting incinerated ash into cement raw material
CN105562423B (en) A kind of incineration of refuse flyash melting process for the treatment of
KR20130010072A (en) Treatment method and treatment device for converting chlorine-containing waste into raw material for cement
CN102875116A (en) Method for preparing chromium-containing sludge ceramsite
Wei et al. Removal of harmful components from MSWI fly ash as a pretreatment approach to enhance waste recycling
KR101789701B1 (en) Manufacturing method of potassium chloride using cement bypass dust
JPS63310691A (en) Method of treating contaminated mineral substance
JP2004033893A (en) Method for recycling waste
CN104418561A (en) Matrix material of baking-free bricks and preparation method of baking-free bricks
CN101481221B (en) Method for treating silicate slag from wastewater treatment
KR101975668B1 (en) Potassium Chloride Obtaining System of Cement Process Bypass Dust
SK284832B6 (en) Method of treatment of filter cake from filtration of polymer polyols
SK82595A3 (en) Method of treating and ecological acceptable use of asbestos- -cement products
EP1328488B1 (en) Catalyzed hydraulic mixtures containing inert materials for making non polluting articles and the articles made thereby
DE69818305T2 (en) METHOD FOR TREATING WASTE COMBUSTION RESIDUES
KR20160120927A (en) A asphalt concrete composion using block with waste sludge
CN106927706B (en) A kind of method of incineration of refuse flyash synthetic crystal mineral material
RU2351665C2 (en) Method of phosphorus recovery
CN101723566A (en) Method for disposing waterworks sludge
JPS59147700A (en) Treatment of sludge
JP4002044B2 (en) Treatment method of sludge incineration ash
JP3415065B2 (en) Method for producing desalted solidified waste incineration ash
CN104593036A (en) Regenerated fuel oil extracted from waste filter cakes for producing sulfonate and preparation method of regenerated fuel oil