Process for the preparation of a catalyst useful for liquid-liquid sweetening LPG and light petroleum distillates

   
   

The present invention relates to a process for the preparation of metal phthalocyanine sulphonamide [MPc(SO.sub.2 NHR).sub.x ] catalyst useful for sweetening of LPG and light petroleum distillates which comprises reacting a metal phthalocyanine with chlorosulphonic acid at 90-150.degree. C. for 1-5 hrs. cooling the reaction mixture adding 1-7 parts of a chloride reagent heating the said mixture at 60-80.degree. C. from 0.5-3 hrs. to obtain the metal phthalocyanine sulphonyl chloride, isolating it by adding the reaction mixture in ice cold water, reacting the isolated metal phthalocyanine sulphonyl chloride with an amine of general formula H.sub.2 NR where R is selected from hydrogen, aryl, alkyl and cycloalkyl in an aqueous or non-aqueous medium or a mixture thereof at a temperature in the range -4 to 15.degree. C. and at a pH ranging between 7-9 in the presence of an acid binding agent to obtain the described metal phthalocyanine sulphonamide catalyst wherein the chloride reagent used is selected from the group consisting of thionyl chloride, phosphorus trichloride and phosphorus pentachloride, the binding agent used is selected from the group consisting of sodium bicarbonate, sodium carbonate, sodium hydroxide and tertiary organic bases selected from pyridine triethyl amine and piperidine and the catalyst metal phthalocyanine sulphonamide is selected from the group consisting of cobalt, manganese, nickel, iron vanadium phthalocyanine sulfonamide most preferably cobalt phthalocyanine sulphonamide.

A invenção atual relaciona-se a um processo para a preparação do catalizador do sulphonamide do phthalocyanine do metal [ MPc(SO.sub.2 NHR).sub.x ] útil para sweetening do LPG e dos distillates do petróleo claro que compreende reagir um phthalocyanine do metal com o ácido chlorosulphonic em 90-150.degree. C. por 1-5 horas que refrigeram a mistura de reação que adiciona 1-7 porções de um reagent do cloreto que aquece a mistura dita em 60-80.degree. C. de 0.5-3 hora. para obter o cloreto do sulphonyl do phthalocyanine do metal, isolando o adicionando a mistura de reação na água fria do gelo, reagindo o cloreto isolado do sulphonyl do phthalocyanine do metal com um amine da fórmula geral H.sub.2 NR onde R é selecionado do hidrogênio, o arilo, o alkyl e o cycloalkyl em um meio aqueous ou non-aqueous ou uma mistura disso em uma temperatura na escala -4 a 15.degree. O C. e em um pH que varia entre 7-9 na presença de um agente obrigatório ácido para obter o catalizador descrito do sulphonamide do phthalocyanine do metal wherein o reagent do cloreto usado é selecionado do cloreto do thionyl do grupo, o trichloride do phosphorus e o pentachloride consistindo do phosphorus, o agente obrigatório usado é selecionado do bicarbonato de sodium consistindo do grupo, carbonato de sodium, hydroxide do sodium e as bases orgânicas tertiary selecionadas do amine do pyridine e piperidine triethyl e o sulphonamide do phthalocyanine do metal do catalizador são selecionadas do cobalt consistindo do grupo, manganês, niquelar, sulphonamide do phthalocyanine do cobalt do sulfonamide do phthalocyanine do vanadium do ferro o mais preferivelmente.

 
Web www.patentalert.com

< Stripping process with fully distributed openings on baffles

< Modified electrochemical hydrogen storage alloy having increased capacity, rate capability and catalytic activity

> Conversion of static sour natural gas to fuels and chemicals

> Composition comprising 6-methyl-3,4dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide, its salts, preparation thereof and uses therefor

~ 00113