Platinum recovery

admin1 Precious metals 2021-04-08 14:00 0

   Information on the recovery of platinum from platinum yellow alloy, introducing the method of recovering platinum. Aldehydes formed from hydrocarbons are used as intermediates for the preparation of plasticizer alcohols and surfactants, and they can be prepared from them by hydrogenation in a conventional manner. The olefin used for hydroformylation can eliminate water from the corresponding fatty alcohol, for example, by acid catalysis or according to, for example. If olefins are used in the palladium platinum rhodium recovery method, they can be directly hydroformylated into the corresponding normal aldehydes in the hydroformylation stage, or they can be hydrogenated into formaldehyde and hydroformylated into isoaldehydes. How much platinum is in the catalytic converter in the pre-carbonylation stage after their isomerization to form internal olefins, see above for its use. The method for recovering palladium, platinum and rhodium is particularly suitable for the hydroformylation of polymerized olefins such as low-molecular-weight polyisobutylene and low-molecular-weight olefins. Polybutadiene or low molecular weight poly, butadiene isobutylene or poly, butadiene isobutylene. Low-molecular-weight polymers especially refer to polymers with a molecular weight of up to Alton. However, it is also possible to hydroformylate higher molecular weight, that is, unsaturated polymers with a higher molecular weight.


 
   The only prerequisite is that they must be soluble in the hydroformation medium. Therefore, the recovery method of palladium, platinum and rhodium is suitable for preparing almost all unsaturated polymers. The platinum recovery service can be used to obtain all aldehydes from the hydroformylation of olefins. How to extract platinum from a catalytic converter, we will emphasize that, for example, substituted olefins that can usually have one or two but preferably one substituent can also be hydroformylated by this palladium platinum rhodium recovery method. Extracting platinum from gravel such as unsaturated aliphatic carboxylates, acetal ether aldehydes and ketones, amines and amides can be hydroformylated by the palladium platinum rhodium recovery method. Such substituted starting olefins of interest are for example methacrylates, dicyclopentadiene vinyl ethers and allyl ethers, especially the corresponding substituted derivatives of unsaturated fatty acids, such as oleic linoleic acid , Linoleic acid ricinoleic acid or erucic acid ester. Aldehydes that can be obtained from these olefin feedstocks by hydroformylation are also the starting materials for the preparation of biologically degradable surface-active substances. The preparation of branched carboxylic acid alcohols or amines also offers another possibility. The platinum recovered from the automobile catalytic converter. The olefins obtained from olefins are isomerized into internal olefins in the pre-carbonylation stage, and then hydroformylated into isoaldehydes. The isoaldehydes thus obtained are oxidized to branched carboxylates in a conventional manner. Acid, reduced to branched alcohol or reductive amination to branched amine by this method. The oxidation of isoaldehydes or isoaldehyde normal aldehyde mixtures obtained from olefins can be carried out in a known manner, for example by using atmospheric oxygen or using oxygen in accordance with the Encyclopedia of Industrial Chemistry, where platinum rhodium platinum wire is
recovered.


 
   The method described in the first edition oxidizes aldehydes. The catalytic hydrogenation of isoaldehydes or isoaldehyde-normal aldehyde mixtures obtained from olefins in the volume palladium platinum rhodium recovery process to produce branched chain alcohols can be carried out, for example, in a known manner. It is carried out by the method described in the Ullmann Encyclopedia of Industrial Chemistry, Vol. 1 Edition. Page or hydrocarbon processing, year, month, page In this palladium, platinum and rhodium recovery method, the iso-aldehyde or iso-aldehyde-normal aldehyde mixture obtained from olefins can be reductively amination. In a known manner, for example through the Ullmann Encyclopedia of Industrial Chemistry, automotive platinum palladium rhodium catalysis is now recovered. The method described in the first edition volume. Platinum data recovery reviews The starting materials used to prepare amines include ammonia, primary amines or secondary amines. Example Phosphonomethylated polyethyleneimine has an average molar mass that is higher than that of phosphonomethylated polyethyleneimine for extraction The aqueous solution extracts the isomer mixture of butene dimer effluent from the hydroformylation reaction of octene. The weight of rhodium that is initially present after extraction, and the weight that is still present in the organic phase. The pre-carbonylation extracts the rhodium-containing aqueous solution containing the phosphonomethylated polyethyleneimine with the carbon monoxide pressure and temperature in the octene autoclave for hours. During the operation of the platinum refining kit, how can platinum in the aqua regia solution be recovered? The rhodium attached to the water-soluble polymer is carbonylated and extracted into the water phase. The organic phase contains the weight, the water phase contains the weight of rhodium, the computer gold is recovered and the water-soluble polymer remains in the water phase. Hydroformylation separates the effluent from the pre-carbonylation reactor into an aqueous phase and an organic phase. Then in the hydroformylation reactor, the organic phase is hydroformylated under the syngas pressure ratio of



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