Propionic Acid (CAS 79-09-4), iyo ine simba rekushandisa carboxylic acid inoshandiswa zvakanyanya mukuchengetedza chikafu chemhuka, kuwedzerwa kwechikafu, mishonga yepakati uye kugadzira makemikari akanaka, inokwezva kutarisisa kwemusika mukupera kwaGunyana 2026, zvichikonzerwa nekubudirira kwetekinoroji yemuno uye kukura kwekudiwa kwemwaka muzvikamu zvekurima zvepasi rose.

Chiitiko chikuru chehunyanzvi chakaitwa musi wa16 Gunyana neSinochem Southwest Research Institute. Chivako chayo chekuongorora matani zana pagore chemethyl propionate kuburikidza ne ethylene hydroesterification chakashanda zvakanaka kwemaawa anopfuura mazana matatu akateedzana. Maitiro aya akaburitsa shanduko ye 99% carbon monoxide single-pass uye kupfuura 99.9% methyl propionate selectivity, zvichiratidza danho guru rekugadzira green generation yemakemikari e propionate anosanganisira propionic acid derivatives. Mushure mekusimbiswa kwakazara kwedata rekuongorora, mapato akakodzera achasimudzira kuvaka kwemaindasitiri. Iyi nzira itsva inotarisirwa kuumba patsva mamiriro enguva refu ezvigadzirwa zve propionic acid zvine chekuita nekuchena kwakanyanya muChina, zvichitsigira kugadzirwa kwemakemikari emagetsi emvura, zvinonhuwira uye mishonga.

Panyaya dzemusika, gore rechina ndiyo mwaka wepamusoro wekushandiswa kwepropionic acid yemhando yepamusoro yezvikafu. Vagadziri vezvipfuyo muSouth America, Southeast Asia neAfrica vari kuwedzera kutenga zvinodzivirira chikosoro vasati vachengeta zviyo munguva yechando. Propionic acid inoderedza kubereka kwechikosoro nemycotoxin muzvikafu zvechikafu ne silage, izvo zvinoita kuti chikafu chirambe chine hutano uye zvinoderedza marara ezvikafu. Vagadziri vezvikafu zvepasi rose vari kuderedza zvinowedzerwa nemishonga inorwisa mabhakitiriya, zvichiwedzera kudiwa kwezvikafu zvinochengetedza organic acid.

MuChina, vagadziri vepropionic acid vanoramba vaine mwero wekushanda wakadzikama. Kuwanikwa kwezvinhu zvinopa huwandu hwakafanana hwemaindasitiri, hwechikafu uye hwekudya. Mibvunzo yekubuda kunze kwenyika kubva kune vatengi vekurima nekugadzira chikafu kunze kwenyika yakawedzera zvakanyanya kubva pakati paGunyana. Vatengi vanoratidza kufarira kwakanyanya kwe99.5% propionic acid yakachena, ine sarudzo dzekurongedza dzinochinjika dzinosanganisira madhiramu, maIBC totes uye matangi eISO emidziyo yekutakura zvinhu zvakasiyana-siyana.

Kunyange zvakadaro, vatori vechikamu mumusika vachiri kutarisa zvinhu zvakasiyana-siyana zvine njodzi. Kuchinja kwemitengo yezvinhu zvisina kugadzirwa kunogona kuunza kumanikidzwa kwemitengo kune vagadziri vepropionic acid. Pamusoro pezvo, makwikwi emunharaunda kubva kune vatengesi vekunze kwenyika acharamba achikanganisa purofiti yekutumira kunze kwenyika. Vaongorori vemaindasitiri vanoti musika wenguva pfupi wepropionic acid uchawana rutsigiro kubva mukudiwa kwechikafu chemwaka. Asi kukwira kwemitengo kuri pachena hakugoneke kana pasina kuwanikwa kwakawanda. Vatengi vepasi rose vanokurudzirwa kuronga maodha pachine nguva kuti vagadzirise kumanikidzwa kwekutumira kwekota yechina. Nekufamba kwenguva, matekinoroji matsva ekugadzira zvinhu zvakasvibira achavandudza kukwikwidza kweChina mukutengeserana kwepasi rose kwepropionic acid.