DEP0053503DA - Process for converting low-boiling diolefinic terpenes into monoolefinic or non-olefinic terpenes - Google Patents

Description

Process for the conversion of low-boiling oil f iaiechen IEerpeata la monoolefini echo or not olefinic »terpenes«

Commercially available turpentine oil consists of m? ® - 9® £ ca "Iv-ÄßeSp eia" a monoolefinic Τβτρ ©% that wipe 150 "16o ° boiling" This main component is, especially in low-quality turpentine varieties or in the preliminary stages of the turpentine oil distillation, bad-smelling, dijfo lefiniaehe terpene-like hydrocarbons of an inferior kind present «

It has been found that these organic admixtures of turpentine oil look in ßonoolefinische or non-olefinic f @ Tp & m ! «Knurled, because they are treated kit of the most reduced metal« of the eighth group of the periodic systeiae * This treatment can be carried out for example bit catalysts * which contain cobalt or sheet metal · Particularly well suited to the meaning of K # bsl% -fh € ^ ie «Ä ^. # ®ie-II © selgi3y« Ätalysat «eÄ _f as they are used for the catalytic carbon dioxide3 ^ drler" ng "

With the help of Eobalt catalysts, the olefinic terpene hydrocarbons in turpentine oil can be iniseb © Terpenes, "" B "Caaiiim" transferred to Pinm "When using a ffiokelkatalysatoren, preferably naditolefinic result Terpenes «All invented transformation of turpentine oil» - contamination takes place at room temperature « If the diolefinic terpene compounds to be converted are poured over a xobalt catalyst, there is a considerable increase in temperature which can lead to the distillation of the terpene «The presence of oxygen-containing terpene derivatives causes this EesJction however disturbed "

Polymerization or condensation of the terpenes occurs

the treatment in accordance with the requirements does not elin® aucli the hole * »lcular weight of the external product remains unchanged« the iodine number

BjBirt on the held IaBgaagswrt _g the BreeliimgsiBdex, however, increases see, ®

JSa _i S Often the% setsaag is reached with! Semferatwrea m aimanernd 17o °, whereby one works both in the liquid and in the gaseous phase between the limit values 0-3 <> ⁰

Camphene can be obtained from the products treated according to the invention by radiation. Upon initiation of dry Chlorwasse RSTOFF is verifiable Pinenhy droohlorid * Will TOR tonnten From the Ausgangsmaterlal the erfindisigsgemSsse "treatment not yet Camphon pinene isolated ₀

Beiapiel 1y

An egg frond was separated from Portuguese turpentine, which boiled between 149 - 153.8 ^# and had a visibility "of 0.863". Its refractive index was n | ° "1.4652 · BLe iodine number was 349 and the molecular weight was 136" tone of this ter ^ eafrakti # m warden loo © © es to Xettf · from 5 Stimdea m £ im ecm © i »sÄbait« fhori «^^^ esiTa» -ae © © lgi »« * ata% eat «s applied drop by drop» The Xatalyst was located in a 1000 © em still tiena flask, which was provided with a distillation process. When the terpene fraction was dripped on, the fat was warmed up so much that the leaitfeieaspredaIi; gae "shaped,

The starting material used with a boiling range of ^{149-153 * 8 0} gave an end product with an initial boiling point of 152 ^0. Further distillation resulted in the following

Results 1

at 161 ^β went over 5 © Voluiaen-56

164.2 ⁰ »» 60

168.5 ^β * ^β 70

172.0 ° * «8 ©

175.5 ° ■ 93

The individual groups had the following indicators

Refractive index iodine steel molecular

Weight 161 164.2 0 1.47oo 154 136 164.2 - 168.5 0 1.4717 144 136 172.0 - 175, ο O 1.48oo 132 137 168.5 - 172.0 0 1.4753 15 © 136 over 175.5 0 1.4838 176 172.5

These figures show that the diolefinic proportions of the processed petroleum fraction do not change significantly of the molecular weight a are converted into monoolefinic terpenes "

Example 2 - _r

A terpene fraction boiling between 153.6 to 154.9 ° _{f had} the following characteristics *

Bichte, .... ···· B ^ * 0.861

Refractive index. a ^ »1.4654

Iodine number .., .. ··· * = 373

Mole Jcalar weight "136

was treated in an autoclave for one hour with 10 volumes of the catalyst used in Example 1 · This resulted in a swischejx 157 * 176.8 ⁰ boiling end product, which had the following iimz & hien ·

Would like «4 ·· B ^ - 0.859

Refractive index .. n ² ^ * »1.4714

Iodine number ·. * 179

Molecular weight = 136

In this case, too, the molecular weight has not changed as a result of the inventive treatment.

f atentm # prtiehe t

1 ·) Process for converting low-boiling diols (false terpenes) into monoolefinic or non-olefinic ones Terpenes, characterized in that the diolefinic terpenes

it can be treated with reduced metals of the eighth grappe of the periodic system in liquid or gaseous media at temperatures between a 0 O ₀ 3oo ^{0 *}

2 #) Terfahrea according to claim 1, characterized in that for the treatment in monoolefinic T erpene cobalt or catalysts containing nickel are used *