Enesimo sengqondo esihle nesiphucukileyo kwiminqweno yabathengi, inkampani yethu ihlala iphucula umgangatho wempahla yethu ukuze yanelise iminqweno yabathengi kwaye igxile ngakumbi kukhuseleko, ukuthembeka, iimfuno zokusingqongileyo, kunye nobuchule be-China Wholesale China Mudanjiang Fengda H2c2o4 99.6 Industrial Grade Dihydrate Price Ethanedioic Oxalic Acid, Ishishini lethu ligcina ishishini lethu likhuselekile kwaye liphilile lixutywe yinyaniso kunye nokunyaniseka ukunceda ukugcina unxibelelwano lwexesha elide nabathengi bethu.
Enesimo sengqondo esihle nesiphucukileyo kwiminqweno yabathengi, inkampani yethu ihlala iphucula umgangatho wempahla yethu ukuze yanelise iminqweno yabathengi kwaye igxile ngakumbi kukhuseleko, ukuthembeka, iimfuno zokusingqongileyo, kunye nobuchule be-. Ngaphezu koko, zonke izisombululo zethu zenziwe ngezixhobo eziphambili kunye neenkqubo ezingqongqo ze-QC ukuqinisekisa umgangatho ophezulu. Ukuba unomdla kuyo nayiphi na impahla yethu, qiniseka ukuba awulibazisi ukunxibelelana nathi. Siza kwenza konke okusemandleni ethu ukuhlangabezana neemfuno zakho.

Imibuzo ebuzwa qho

Ngaba ufuna uncedo? Qiniseka ukuba undwendwela iiforam zethu zenkxaso ukuze ufumane iimpendulo kwimibuzo yakho!

Ngaba singayiprinta ilogo yethu kwimveliso?

Kakade, singakwenza oko. Sithumelele nje uyilo lwelogo yakho.

Ngaba uyazamkela iiodolo ezincinci?

Ewe. Ukuba ungumthengisi omncinci okanye uqalisa ishishini, ngokuqinisekileyo sizimisele ukukhula nawe. Kwaye sijonge phambili ekusebenzeni nawe ubudlelwane bexesha elide.

Kuthekani ngexabiso? Ngaba ungayenza ifikeleleke kancinci?

Sisoloko sithatha inzuzo yomthengi njengeyona nto iphambili. Ixabiso liyaxoxiswana phantsi kweemeko ezahlukeneyo, siyakuqinisekisa ukuba ufumana ixabiso elikhuphisanayo.

Ngaba niyazibonelela ngeesampuli zasimahla?

Kuyaxatyiswa ukuba ungasibhalela uphononongo oluhle ukuba uyayithanda imveliso kunye nenkonzo yethu, siza kukunika iisampulu zasimahla kwi-odolo yakho elandelayo.

Ngaba uyakwazi ukunikezela ngexesha?

Ewe kona! Sikhetheke kakhulu kule ntambo kangangeminyaka emininzi, abathengi abaninzi benza isivumelwano nam kuba siyakwazi ukuhambisa iimpahla ngexesha kwaye sigcine iimpahla zisemgangathweni ophezulu!

Ndingandwendwela inkampani yakho kunye nomzi-mveliso eTshayina?

Ewe. Wamkelekile kakhulu ukutyelela inkampani yethu eZibo, eTshayina. (Iiyure ezili-1.5 ukusuka eJinan)

Ndingayifaka njani iodolo?

Ungasithumela nje umbuzo kuye nawuphi na ummeli wethu wentengiso ukuze ufumane ulwazi oluneenkcukacha zeodolo, size sichaze inkqubo yeenkcukacha. Indlela yokuQhagamshela i-Oxalic acid Carbon Monoxide
Indlela yokuQhagamshela i-Oxalic acid yesigaba solwelo
Le ndlela ekuqaleni yasebenzisa i-PdCl₂–CuCl₂–CuCl njenge-catalyst yokwenza i-liquid-phase catalytic coupling reaction ye-carbon monoxide, i-oxygen, kunye ne-ethanol kwi-12 MPa kunye ne-115 °C ukuvelisa i-diethyl oxalate. Yamkela i-Pd/C njenge-catalyst yokwenza i-coupling reaction ye-ethanol (okanye i-butanol) kunye ne-carbon monoxide kunye ne-oxygen xa kukho i-alkyl nitrite ukuvelisa i-diethyl oxalate (okanye i-dibutyl oxalate). Ii-reaction equations ezihambelanayo zezi:
4CO+4C 2H 5 OH+O 2=2(COOC 2H 5) 2+2H 2O
4CO+4C 4H 9 OH+O 2=2(COOC 4 H 9) 2+2H 2O